现在情况好像不同 了
代码A---此时esp32可以使能从机 可以收到从机的nus消息
但是主机准备发消息的时候会失败
E (32327) KOSON: A: acked ----311--write char failed, error status = 3
这是因为ESP的源码只给出一个服务一个特征值 而nus是有2个
直接发送的话 那个函数 的 一个成员 是需要句柄的
我用的是TX的 而用RX的才可以呀
代码B完成了这个事情 所以代码B成功了
代码B引入一个全局变量(比较省事吧 好点搞是需要放在结构体里面去的!!)
另外代码B处了 换all方法以后 我觉得 也是可以简单的 不用all方法 就用代码A类似的方法把服务找出来 看代码B的注释吧[不用all方法 用另外一个查找 写了代码C 也是可以的 !!]
代码A
/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
/****************************************************************************
*
* This demo showcases BLE GATT client. It can scan BLE devices and connect to one device.
* Run the gatt_server demo, the client demo will automatically connect to the gatt_server demo.
* Client demo will enable gatt_server's notify after connection. The two devices will then exchange
* data.
*
****************************************************************************/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include "nvs.h"
#include "nvs_flash.h"
#include "esp_bt.h"
#include "esp_gap_ble_api.h"
#include "esp_gattc_api.h"
#include "esp_gatt_defs.h"
#include "esp_bt_main.h"
#include "esp_gatt_common_api.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
/***个性化***/
//typedef uint8_t esp_bd_addr_t[ESP_BD_ADDR_LEN];
char* stringMac(esp_bd_addr_t Arr)
{
static char mac[13]={0};
sprintf(mac,"%02X%02X%02X%02X%02X%02X",Arr[0],Arr[1],Arr[2],Arr[3],Arr[4],Arr[5]);
return mac;
}
#define HCI_TAG "KOSON"
long scancount =0;
long yescount =0;
long nocount =0;
int rxdatacount =0;
long rxdatanumber =0;
/***个性化***/
#define GATTC_TAG "GATTC_DEMO"
//#define REMOTE_SERVICE_UUID 0x00FF
#define REMOTE_SERVICE_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x01, 0x00, 0x40, 0x6E}
//#define REMOTE_NOTIFY_CHAR_UUID 0xFF01
#define REMOTE_NOTIFY_CHAR_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x03, 0x00, 0x40, 0x6E}
#define PROFILE_NUM 1
#define PROFILE_A_APP_ID 0
#define INVALID_HANDLE 0
static const char remote_device_name[] ="M_IZAR_ESP_TEST";// "M_IZAR_TEST";// "M_IZAR_ALVIN";//"ESP_GATTS_DEMO";
static bool connect = false;
static bool get_server = false;
static esp_gattc_char_elem_t *char_elem_result = NULL;
static esp_gattc_descr_elem_t *descr_elem_result = NULL;
/* Declare static functions */
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static esp_bt_uuid_t remote_filter_service_uuid = {
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_SERVICE_UUID,},
};
static esp_bt_uuid_t remote_filter_char_uuid = {
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_NOTIFY_CHAR_UUID,},
};
static esp_bt_uuid_t notify_descr_uuid = {
.len = ESP_UUID_LEN_16,
//.uuid = {.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG,},
.uuid = {.uuid16 = 0x2902,},
};
static esp_ble_scan_params_t ble_scan_params = {
.scan_type = BLE_SCAN_TYPE_ACTIVE,//BLE_SCAN_TYPE_PASSIVE,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
.scan_interval = 0x30,
.scan_window = 0x20,
.scan_duplicate = BLE_SCAN_DUPLICATE_DISABLE//BLE_SCAN_DUPLICATE_ENABLE
};
struct gattc_profile_inst {
esp_gattc_cb_t gattc_cb;
uint16_t gattc_if;
uint16_t app_id;
uint16_t conn_id;
uint16_t service_start_handle;
uint16_t service_end_handle;
uint16_t char_handle;
esp_bd_addr_t remote_bda;
};
/* One gatt-based profile one app_id and one gattc_if, this array will store the gattc_if returned by ESP_GATTS_REG_EVT */
static struct gattc_profile_inst gl_profile_tab[PROFILE_NUM] = {
[PROFILE_A_APP_ID] = {
.gattc_cb = gattc_profile_event_handler,
.gattc_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
};
/*KOSON*/
void ESP_BLE_Send(esp_gatt_if_t gattc_if3,uint8_t *data,int datalen){
ESP_LOGE(HCI_TAG, "ESP_BLE_Send:");
esp_log_buffer_hex(HCI_TAG, data, datalen);
esp_ble_gattc_write_char( gattc_if3,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
datalen,
data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
uint8_t hex_to_char(uint8_t ucData)
{
if(ucData < 10){
return ucData+'0';
}
else{
return ucData-10+'A';
}
}
unsigned char str_to_int(unsigned char dData)
{
unsigned char rst=0;
if((dData >= '0')&& (dData <= '9'))
rst = dData-'0';
else if((dData >= 'A')&&(dData <= 'F'))
rst = dData+10-'A';
else if((dData >= 'a')&&(dData <= 'f'))
rst = dData+10-'a';
else rst = 0;//不是ASCII的char
return rst;
}
/*"1234"---->0X12 0X34 参数3一般是strlen*/
int memcpy_down( unsigned char *respone, const char *data , int length)
{
ESP_LOGE(GATTC_TAG, "memcpy_down %s %d",data,length);
if(length%2 != 0) return -1;
for( int i = 0 ; i < length/2 ;i++)
{
*respone++ = (((str_to_int(data[i*2])<<4)&0xf0)|(str_to_int(data[i*2+1])&0x0f));
}
return length/2 ;
}
/*KOSON*/
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
esp_ble_gattc_cb_param_t *p_data = (esp_ble_gattc_cb_param_t *)param;
switch (event) {
case ESP_GATTC_REG_EVT:
ESP_LOGD(HCI_TAG, "ESP_GATTC_REG_EVT 马上去设置扫描参数");
esp_err_t scan_ret = esp_ble_gap_set_scan_params(&ble_scan_params);
if (scan_ret){
ESP_LOGE(GATTC_TAG, "set scan params error, error code = %x", scan_ret);
}
break;
case ESP_GATTC_CONNECT_EVT:{
ESP_LOGD(GATTC_TAG, "ESP_GATTC_CONNECT_EVT conn_id %d, if %d", p_data->connect.conn_id, gattc_if);
gl_profile_tab[PROFILE_A_APP_ID].conn_id = p_data->connect.conn_id;
memcpy(gl_profile_tab[PROFILE_A_APP_ID].remote_bda, p_data->connect.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGD(HCI_TAG, "准备连接这个MAC的从机 REMOTE BDA:");
//esp_log_buffer_hex(GATTC_TAG, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ConnectedTarget %s",stringMac(p_data->connect.remote_bda));
esp_err_t mtu_ret = esp_ble_gattc_send_mtu_req (gattc_if, p_data->connect.conn_id);
if (mtu_ret){
ESP_LOGE(GATTC_TAG, "config MTU error, error code = %x", mtu_ret);
}
ESP_LOGE(HCI_TAG, " <KK> 设置MTU [定位gattc_if=%d]",gattc_if);//3
/*测试扫描150次 成功100次 失败50次 所以暂时不设置这个试试 优化 1*/
break;
}
case ESP_GATTC_OPEN_EVT:
if (param->open.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "open failed, status %d", p_data->open.status);
break;
}
ESP_LOGI(GATTC_TAG, "open success");
break;
case ESP_GATTC_DIS_SRVC_CMPL_EVT:
if (param->dis_srvc_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "discover service failed, status %d", param->dis_srvc_cmpl.status);
break;
}
ESP_LOGI(HCI_TAG, "2 discover service complete conn_id %d", param->dis_srvc_cmpl.conn_id);
esp_ble_gattc_search_service(gattc_if, param->cfg_mtu.conn_id, &remote_filter_service_uuid);
break;
case ESP_GATTC_CFG_MTU_EVT:
if (param->cfg_mtu.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG,"config mtu failed, error status = %x", param->cfg_mtu.status);
}
ESP_LOGD(HCI_TAG, "<KK> 设置MTU成功 ESP_GATTC_CFG_MTU_EVT, Status %d, MTU %d, conn_id %d", param->cfg_mtu.status, param->cfg_mtu.mtu, param->cfg_mtu.conn_id);
break;
case ESP_GATTC_SEARCH_RES_EVT: {
ESP_LOGD(GATTC_TAG, "SEARCH RES: conn_id = %x is primary service %d", p_data->search_res.conn_id, p_data->search_res.is_primary);
ESP_LOGD(GATTC_TAG, "start handle %d end handle %d current handle value %d", p_data->search_res.start_handle, p_data->search_res.end_handle, p_data->search_res.srvc_id.inst_id);
//if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_16 && p_data->search_res.srvc_id.uuid.uuid.uuid16 == REMOTE_SERVICE_UUID) {
if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_128) {
ESP_LOGI(HCI_TAG, "3 service found");
get_server = true;
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle = p_data->search_res.start_handle;
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle = p_data->search_res.end_handle;
ESP_LOGD(GATTC_TAG, "UUID16: %x", p_data->search_res.srvc_id.uuid.uuid.uuid16);
}
break;
}
case ESP_GATTC_SEARCH_CMPL_EVT:
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
ESP_LOGI(GATTC_TAG, "Get service information from remote device");
} else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
ESP_LOGI(GATTC_TAG, "Get service information from flash");
} else {
ESP_LOGI(GATTC_TAG, "unknown service source");
}
ESP_LOGD(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT %d",get_server);
if (get_server){
uint16_t count = 0;
esp_gatt_status_t status = esp_ble_gattc_get_attr_count( gattc_if,
p_data->search_cmpl.conn_id,
ESP_GATT_DB_CHARACTERISTIC,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
INVALID_HANDLE,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
if (count > 0){
char_elem_result = (esp_gattc_char_elem_t *)malloc(sizeof(esp_gattc_char_elem_t) * count);
if (!char_elem_result){
ESP_LOGE(GATTC_TAG, "gattc no mem");
}else{
status = esp_ble_gattc_get_char_by_uuid( gattc_if,
p_data->search_cmpl.conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
remote_filter_char_uuid,
char_elem_result,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid error");
}
/* Every service have only one char in our 'ESP_GATTS_DEMO' demo, so we used first 'char_elem_result' */
if (count > 0 && (char_elem_result[0].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)){
gl_profile_tab[PROFILE_A_APP_ID].char_handle = char_elem_result[0].char_handle;
esp_ble_gattc_register_for_notify (gattc_if, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, char_elem_result[0].char_handle);
}
}
/* free char_elem_result */
free(char_elem_result);
}else{
ESP_LOGE(GATTC_TAG, "no char found");
}
}
break;
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT");
if (p_data->reg_for_notify.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "REG FOR NOTIFY failed: error status = %d", p_data->reg_for_notify.status);
}else{
uint16_t count = 0;
uint16_t notify_en = 1;
esp_gatt_status_t ret_status = esp_ble_gattc_get_attr_count( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
ESP_GATT_DB_DESCRIPTOR,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
&count);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT count=%d",count);
if (count > 0){
descr_elem_result = malloc(sizeof(esp_gattc_descr_elem_t) * count);
if (!descr_elem_result){
ESP_LOGE(GATTC_TAG, "malloc error, gattc no mem");
}else{
ret_status = esp_ble_gattc_get_descr_by_char_handle( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
p_data->reg_for_notify.handle,
notify_descr_uuid,
descr_elem_result,
&count);
ESP_LOGE(HCI_TAG, "5 esp_ble_gattc_get_descr_by_char_handle ok");
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_descr_by_char_handle error");
}
/* Every char has only one descriptor in our 'ESP_GATTS_DEMO' demo, so we used first 'descr_elem_result' */
//---2902 come here
/*
即将使能CCCD
Send RTC_CODE : B001080016040105012821000D0A
*/
#if 1
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
if (count > 0 && descr_elem_result[0].uuid.len == ESP_UUID_LEN_16 && descr_elem_result[0].uuid.uuid.uuid16 == ESP_GATT_UUID_CHAR_CLIENT_CONFIG){
ret_status = esp_ble_gattc_write_char_descr( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
descr_elem_result[0].handle,
sizeof(notify_en),
(uint8_t *)¬ify_en,//1
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_write_char_descr error");
}
ESP_LOGD(HCI_TAG, "6 esp_ble_gattc_write_char_descr ok 成功使能CCCD");
/* free descr_elem_result */
free(descr_elem_result);
}
}
else{
ESP_LOGE(GATTC_TAG, "decsr not found");
}
}
break;
}
case ESP_GATTC_NOTIFY_EVT:
//从机数据太多 暂时屏蔽log
//if (p_data->notify.is_notify){
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive notify value:");
//}else{
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive indicate value:");
//}
ESP_LOGI(HCI_TAG, "RX %d",p_data->notify.value_len);
rxdatacount ++;
rxdatanumber += p_data->notify.value_len;
esp_log_buffer_hex(GATTC_TAG, p_data->notify.value, p_data->notify.value_len);
#if 0
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
break;
case ESP_GATTC_WRITE_DESCR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "write descr failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write descr OK");
#if 0 //主机不要发任何消息
ESP_LOGI(HCI_TAG, "A: write descr success-----esp_ble_gattc_write_char--wait ack----- ");
uint8_t write_char_data[35];
for (int i = 0; i < sizeof(write_char_data); ++i)
{
write_char_data[i] = i % 256;
}
esp_ble_gattc_write_char( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
sizeof(write_char_data),
write_char_data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
#endif
break;
case ESP_GATTC_SRVC_CHG_EVT: {
esp_bd_addr_t bda;
memcpy(bda, p_data->srvc_chg.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ESP_GATTC_SRVC_CHG_EVT, bd_addr:");
esp_log_buffer_hex(GATTC_TAG, bda, sizeof(esp_bd_addr_t));
break;
}
case ESP_GATTC_WRITE_CHAR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(HCI_TAG, "A: acked ----311--write char failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write char success ");
break;
case ESP_GATTC_DISCONNECT_EVT://他不是来自GAP啊!!
connect = false;
get_server = false;
ESP_LOGI(HCI_TAG, "ESP_GATTC_DISCONNECT_EVT, reason = 0X%02X", p_data->disconnect.reason);
esp_ble_gap_start_scanning(30);
scancount++;
if (p_data->disconnect.reason==0X13)yescount++;
else nocount++;
ESP_LOGI(HCI_TAG,"TotalCount=%ld,yes=%ld,fail=%ld,rxdatacount=%d,rxdatanumber=%ld",scancount,yescount,nocount,rxdatacount,rxdatanumber);
rxdatacount =0;
rxdatanumber =0;
ESP_LOGI(HCI_TAG,"===========END=========");
break;
default:
break;
}
}
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
uint8_t *adv_name = NULL;
uint8_t adv_name_len = 0;
switch (event) {
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: {
//the unit of the duration is second
uint32_t duration = 30;
ESP_LOGD(HCI_TAG, "ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT 开始扫描");
ESP_LOGI(HCI_TAG,"ScanStart");
esp_ble_gap_start_scanning(duration);
break;
}
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
//scan start complete event to indicate scan start successfully or failed
if (param->scan_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(GATTC_TAG, "scan start failed, error status = %x", param->scan_start_cmpl.status);
break;
}
ESP_LOGD(HCI_TAG, "scan start success 成功开始扫描");
break;
case ESP_GAP_BLE_SCAN_RESULT_EVT: {
esp_ble_gap_cb_param_t *scan_result = (esp_ble_gap_cb_param_t *)param;
switch (scan_result->scan_rst.search_evt) {
case ESP_GAP_SEARCH_INQ_RES_EVT:
/*这里是扫描的结果 log很多 暂时关闭它*/
//esp_log_buffer_hex(GATTC_TAG, scan_result->scan_rst.bda, 6);
//ESP_LOGI(GATTC_TAG, "searched Adv Data Len %d, Scan Response Len %d", scan_result->scan_rst.adv_data_len, scan_result->scan_rst.scan_rsp_len);
adv_name = esp_ble_resolve_adv_data(scan_result->scan_rst.ble_adv,
ESP_BLE_AD_TYPE_NAME_CMPL, &adv_name_len);
#if CONFIG_EXAMPLE_DUMP_ADV_DATA_AND_SCAN_RESP
if (scan_result->scan_rst.adv_data_len > 0) {
ESP_LOGI(GATTC_TAG, "adv data:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[0], scan_result->scan_rst.adv_data_len);
}
if (scan_result->scan_rst.scan_rsp_len > 0) {
ESP_LOGI(GATTC_TAG, "scan resp:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[scan_result->scan_rst.adv_data_len], scan_result->scan_rst.scan_rsp_len);
}
#endif
if (adv_name != NULL) {
//ESP_LOGI(GATTC_TAG, "searched Device Name Len %d", adv_name_len);
//esp_log_buffer_char(GATTC_TAG, adv_name, adv_name_len);
if (strlen(remote_device_name) == adv_name_len && strncmp((char *)adv_name, remote_device_name, adv_name_len) == 0) {
ESP_LOGD(HCI_TAG, "1 searched device %s\n", remote_device_name);
ESP_LOGI(HCI_TAG,"ScanedTarget");
if (connect == false) {
connect = true;
ESP_LOGI(HCI_TAG, "ConnectTarget");
esp_ble_gap_stop_scanning();
esp_ble_gattc_open(gl_profile_tab[PROFILE_A_APP_ID].gattc_if, scan_result->scan_rst.bda, scan_result->scan_rst.ble_addr_type, true);
}
}
}
break;
case ESP_GAP_SEARCH_INQ_CMPL_EVT:
ESP_LOGI(HCI_TAG, "X ESP_GAP_SEARCH_INQ_CMPL_EVT-->ScanStart");
esp_ble_gap_start_scanning(30);
break;
default:
break;
}
break;
}
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
if (param->scan_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "scan stop failed, error status = %x", param->scan_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop scan successfully");
break;
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "adv stop failed, error status = %x", param->adv_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop adv successfully");
break;
case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
param->update_conn_params.status,
param->update_conn_params.min_int,
param->update_conn_params.max_int,
param->update_conn_params.conn_int,
param->update_conn_params.latency,
param->update_conn_params.timeout);
break;
default:
break;
}
}
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
/* If event is register event, store the gattc_if for each profile */
if (event == ESP_GATTC_REG_EVT) {
if (param->reg.status == ESP_GATT_OK) {
gl_profile_tab[param->reg.app_id].gattc_if = gattc_if;
} else {
ESP_LOGI(GATTC_TAG, "reg app failed, app_id %04x, status %d",
param->reg.app_id,
param->reg.status);
return;
}
}
/* If the gattc_if equal to profile A, call profile A cb handler,
* so here call each profile's callback */
do {
int idx;
for (idx = 0; idx < PROFILE_NUM; idx++) {
if (gattc_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
gattc_if == gl_profile_tab[idx].gattc_if) {
if (gl_profile_tab[idx].gattc_cb) {
gl_profile_tab[idx].gattc_cb(event, gattc_if, param);
}
}
}
} while (0);
}
void app_main(void)
{
// Initialize NVS.
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_init();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s init bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
//register the callback function to the gap module
ret = esp_ble_gap_register_callback(esp_gap_cb);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gap register failed, error code = %x\n", __func__, ret);
return;
}
//register the callback function to the gattc module
ret = esp_ble_gattc_register_callback(esp_gattc_cb);
if(ret){
ESP_LOGE(GATTC_TAG, "%s gattc register failed, error code = %x\n", __func__, ret);
return;
}
ret = esp_ble_gattc_app_register(PROFILE_A_APP_ID);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gattc app register failed, error code = %x\n", __func__, ret);
}
esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
if (local_mtu_ret){
ESP_LOGE(GATTC_TAG, "set local MTU failed, error code = %x", local_mtu_ret);
}
}
/*
I (16407) KOSON: ===========END=========
I (29167) KOSON: ScanedTarget
I (29167) KOSON: ConnectTarget
I (29167) GATTC_DEMO: stop scan successfully
I (30647) GATTC_DEMO: ConnectedTarget DF5F313E2B23
E (30647) KOSON: <KK> 设置MTU [定位gattc_if=3]
I (30647) GATTC_DEMO: open success
I (32217) KOSON: 2 discover service complete conn_id 0
I (32227) KOSON: 3 service found
I (32227) GATTC_DEMO: Get service information from remote device
E (32227) KOSON: ESP_GATTC_REG_FOR_NOTIFY_EVT
E (32237) KOSON: ESP_GATTC_REG_FOR_NOTIFY_EVT count=2
E (32237) KOSON: 5 esp_ble_gattc_get_descr_by_char_handle ok
E (32247) GATTC_DEMO: memcpy_down B001080016040105012821000D0A 28
E (32247) KOSON: ESP_BLE_Send:
I (32257) KOSON: b0 01 08 00 16 04 01 05 01 28 21 00 0d 0a
E (32327) KOSON: A: acked ----311--write char failed, error status = 3
I (32377) KOSON: RX 28
I (32377) GATTC_DEMO: b0 02 16 00 df 5f 31 3e 2b 23 7b 00 f0 7e 00 10
I (32377) GATTC_DEMO: 19 00 00 00 00 00 01 00 01 00 0d 0a
E (32377) GATTC_DEMO: write descr OK
W (35367) BT_APPL: gattc_conn_cb: if=3 st=0 id=3 rsn=0x13
I (35377) KOSON: ESP_GATTC_DISCONNECT_EVT, reason = 0X13
I (35377) KOSON: TotalCount=2,yes=2,fail=0,rxdatacount=1,rxdatanumber=28
I (35377) KOSON: ===========END=========
*/
代码B
/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
/****************************************************************************
*
* This demo showcases BLE GATT client. It can scan BLE devices and connect to one device.
* Run the gatt_server demo, the client demo will automatically connect to the gatt_server demo.
* Client demo will enable gatt_server's notify after connection. The two devices will then exchange
* data.
*
****************************************************************************/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include "nvs.h"
#include "nvs_flash.h"
#include "esp_bt.h"
#include "esp_gap_ble_api.h"
#include "esp_gattc_api.h"
#include "esp_gatt_defs.h"
#include "esp_bt_main.h"
#include "esp_gatt_common_api.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
/***个性化***/
//typedef uint8_t esp_bd_addr_t[ESP_BD_ADDR_LEN];
char* stringMac(esp_bd_addr_t Arr)
{
static char mac[13]={0};
sprintf(mac,"%02X%02X%02X%02X%02X%02X",Arr[0],Arr[1],Arr[2],Arr[3],Arr[4],Arr[5]);
return mac;
}
#define HCI_TAG "KOSON"
long scancount =0;
long yescount =0;
long nocount =0;
int rxdatacount =0;
long rxdatanumber =0;
/***个性化***/
#define GATTC_TAG "GATTC_DEMO"
//#define REMOTE_SERVICE_UUID 0x00FF
#define REMOTE_SERVICE_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x01, 0x00, 0x40, 0x6E}
//#define REMOTE_NOTIFY_CHAR_UUID 0xFF01
#define REMOTE_NOTIFY_CHAR_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x03, 0x00, 0x40, 0x6E}
#define PROFILE_NUM 1
#define PROFILE_A_APP_ID 0
#define INVALID_HANDLE 0
static const char remote_device_name[] = "M_IZAR_ALVIN";//"M_IZAR_ESP_TEST";// "M_IZAR_TEST";// "M_IZAR_ALVIN";//"ESP_GATTS_DEMO";
static bool connect = false;
static bool get_server = false;
static esp_gattc_char_elem_t *char_elem_result = NULL;
static esp_gattc_descr_elem_t *descr_elem_result = NULL;
/* Declare static functions */
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static esp_bt_uuid_t remote_filter_service_uuid = {
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_SERVICE_UUID,},
};
static esp_bt_uuid_t remote_filter_char_uuid = {//remote_filter_char_uuid 关注 它 是不是也可以如法炮制把RX拿出来?
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_NOTIFY_CHAR_UUID,},
};
static esp_bt_uuid_t notify_descr_uuid = {
.len = ESP_UUID_LEN_16,
//.uuid = {.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG,},
.uuid = {.uuid16 = 0x2902,},
};
static esp_ble_scan_params_t ble_scan_params = {
.scan_type = BLE_SCAN_TYPE_ACTIVE,//BLE_SCAN_TYPE_PASSIVE,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
.scan_interval = 0x30,
.scan_window = 0x20,
.scan_duplicate = BLE_SCAN_DUPLICATE_DISABLE//BLE_SCAN_DUPLICATE_ENABLE
};
struct gattc_profile_inst {
esp_gattc_cb_t gattc_cb;
uint16_t gattc_if;
uint16_t app_id;
uint16_t conn_id;
uint16_t service_start_handle;
uint16_t service_end_handle;
uint16_t char_handle;
esp_bd_addr_t remote_bda;
};
/* One gatt-based profile one app_id and one gattc_if, this array will store the gattc_if returned by ESP_GATTS_REG_EVT */
static struct gattc_profile_inst gl_profile_tab[PROFILE_NUM] = {
[PROFILE_A_APP_ID] = {
.gattc_cb = gattc_profile_event_handler,
.gattc_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
};
/*KOSON*/
uint16_t charrx_handle = 0;
void ESP_BLE_Send(esp_gatt_if_t gattc_if3,uint8_t *data,int datalen){
ESP_LOGE(HCI_TAG, "ESP_BLE_Send:");
esp_log_buffer_hex(HCI_TAG, data, datalen);
esp_ble_gattc_write_char( gattc_if3,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
//gl_profile_tab[PROFILE_A_APP_ID].char_handle,
charrx_handle,
datalen,
data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
uint8_t hex_to_char(uint8_t ucData)
{
if(ucData < 10){
return ucData+'0';
}
else{
return ucData-10+'A';
}
}
unsigned char str_to_int(unsigned char dData)
{
unsigned char rst=0;
if((dData >= '0')&& (dData <= '9'))
rst = dData-'0';
else if((dData >= 'A')&&(dData <= 'F'))
rst = dData+10-'A';
else if((dData >= 'a')&&(dData <= 'f'))
rst = dData+10-'a';
else rst = 0;//不是ASCII的char
return rst;
}
/*"1234"---->0X12 0X34 参数3一般是strlen*/
int memcpy_down( unsigned char *respone, const char *data , int length)
{
ESP_LOGE(GATTC_TAG, "memcpy_down %s %d",data,length);
if(length%2 != 0) return -1;
for( int i = 0 ; i < length/2 ;i++)
{
*respone++ = (((str_to_int(data[i*2])<<4)&0xf0)|(str_to_int(data[i*2+1])&0x0f));
}
return length/2 ;
}
/*KOSON*/
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
esp_ble_gattc_cb_param_t *p_data = (esp_ble_gattc_cb_param_t *)param;
switch (event) {
case ESP_GATTC_REG_EVT:
ESP_LOGD(HCI_TAG, "ESP_GATTC_REG_EVT 马上去设置扫描参数");
esp_err_t scan_ret = esp_ble_gap_set_scan_params(&ble_scan_params);
if (scan_ret){
ESP_LOGE(GATTC_TAG, "set scan params error, error code = %x", scan_ret);
}
break;
case ESP_GATTC_CONNECT_EVT:{
ESP_LOGD(GATTC_TAG, "ESP_GATTC_CONNECT_EVT conn_id %d, if %d", p_data->connect.conn_id, gattc_if);
gl_profile_tab[PROFILE_A_APP_ID].conn_id = p_data->connect.conn_id;
memcpy(gl_profile_tab[PROFILE_A_APP_ID].remote_bda, p_data->connect.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGD(HCI_TAG, "准备连接这个MAC的从机 REMOTE BDA:");
//esp_log_buffer_hex(GATTC_TAG, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ConnectedTarget %s",stringMac(p_data->connect.remote_bda));
esp_err_t mtu_ret = esp_ble_gattc_send_mtu_req (gattc_if, p_data->connect.conn_id);
if (mtu_ret){
ESP_LOGE(GATTC_TAG, "config MTU error, error code = %x", mtu_ret);
}
ESP_LOGE(HCI_TAG, " <KK> 设置MTU [定位gattc_if=%d]",gattc_if);//3
/*测试扫描150次 成功100次 失败50次 所以暂时不设置这个试试 优化 1*/
break;
}
case ESP_GATTC_OPEN_EVT:
if (param->open.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "open failed, status %d", p_data->open.status);
break;
}
ESP_LOGI(GATTC_TAG, "open success");
break;
case ESP_GATTC_DIS_SRVC_CMPL_EVT:
if (param->dis_srvc_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "discover service failed, status %d", param->dis_srvc_cmpl.status);
break;
}
ESP_LOGI(HCI_TAG, "2 discover service complete conn_id %d", param->dis_srvc_cmpl.conn_id);
esp_ble_gattc_search_service(gattc_if, param->cfg_mtu.conn_id, &remote_filter_service_uuid);
break;
case ESP_GATTC_CFG_MTU_EVT:
if (param->cfg_mtu.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG,"config mtu failed, error status = %x", param->cfg_mtu.status);
}
ESP_LOGD(HCI_TAG, "<KK> 设置MTU成功 ESP_GATTC_CFG_MTU_EVT, Status %d, MTU %d, conn_id %d", param->cfg_mtu.status, param->cfg_mtu.mtu, param->cfg_mtu.conn_id);
break;
case ESP_GATTC_SEARCH_RES_EVT: {
ESP_LOGD(GATTC_TAG, "SEARCH RES: conn_id = %x is primary service %d", p_data->search_res.conn_id, p_data->search_res.is_primary);
ESP_LOGD(GATTC_TAG, "start handle %d end handle %d current handle value %d", p_data->search_res.start_handle, p_data->search_res.end_handle, p_data->search_res.srvc_id.inst_id);
//if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_16 && p_data->search_res.srvc_id.uuid.uuid.uuid16 == REMOTE_SERVICE_UUID) {
if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_128) {
ESP_LOGI(HCI_TAG, "3 service found");
get_server = true;
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle = p_data->search_res.start_handle;
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle = p_data->search_res.end_handle;
ESP_LOGD(GATTC_TAG, "UUID16: %x", p_data->search_res.srvc_id.uuid.uuid.uuid16);
}
break;
}
#if 0
case ESP_GATTC_SEARCH_CMPL_EVT:
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
ESP_LOGI(GATTC_TAG, "Get service information from remote device");
} else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
ESP_LOGI(GATTC_TAG, "Get service information from flash");
} else {
ESP_LOGI(GATTC_TAG, "unknown service source");
}
ESP_LOGD(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT %d",get_server);
if (get_server){
uint16_t count = 0;
esp_gatt_status_t status = esp_ble_gattc_get_attr_count( gattc_if,
p_data->search_cmpl.conn_id,
ESP_GATT_DB_CHARACTERISTIC,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
INVALID_HANDLE,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
if (count > 0){
char_elem_result = (esp_gattc_char_elem_t *)malloc(sizeof(esp_gattc_char_elem_t) * count);
if (!char_elem_result){
ESP_LOGE(GATTC_TAG, "gattc no mem");
}else{
status = esp_ble_gattc_get_char_by_uuid( gattc_if,
p_data->search_cmpl.conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
remote_filter_char_uuid,
char_elem_result,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid error");
}
/* Every service have only one char in our 'ESP_GATTS_DEMO' demo, so we used first 'char_elem_result' */
if (count > 0 && (char_elem_result[0].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)){
gl_profile_tab[PROFILE_A_APP_ID].char_handle = char_elem_result[0].char_handle;
esp_ble_gattc_register_for_notify (gattc_if, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, char_elem_result[0].char_handle);
}
}
/* free char_elem_result */
free(char_elem_result);
}else{
ESP_LOGE(GATTC_TAG, "no char found");
}
}
break;
#else
case ESP_GATTC_SEARCH_CMPL_EVT:
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
ESP_LOGI(GATTC_TAG, "Get service information from remote device");
} else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
ESP_LOGI(GATTC_TAG, "Get service information from flash");
} else {
ESP_LOGI(GATTC_TAG, "unknown service source");
}
ESP_LOGD(HCI_TAG, "ESP_GATTC_SEARCH_CMPL_EVT get_server=%d",get_server);
if (get_server){
uint16_t count = 0;
uint16_t offset = 0;
esp_gatt_status_t ret_status = esp_ble_gattc_get_attr_count(gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
ESP_GATT_DB_CHARACTERISTIC,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
p_data->reg_for_notify.handle,//??? INVALID_HANDLE,
&count);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error, %d", __LINE__);
}
ESP_LOGD(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT count=%d",count);
if (count > 0){
char_elem_result = (esp_gattc_char_elem_t *)malloc(sizeof(esp_gattc_char_elem_t) * count);
if (!char_elem_result){
ESP_LOGE(GATTC_TAG, "gattc no mem");
}else{
ret_status = esp_ble_gattc_get_all_char(gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
char_elem_result,
&count,
offset);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_all_char error, %d", __LINE__);
}
if (count > 0){
for (int i = 0; i < count; ++i)
{
//if (char_elem_result[i].uuid.len == ESP_UUID_LEN_16 )
//{
ESP_LOGE(GATTC_TAG, "[count %d]+++%04X+++%d+++%04X+++[是否需要使能%d] uuid如下", i,char_elem_result[i].char_handle,char_elem_result[i].uuid.len,char_elem_result[i].uuid.uuid.uuid16,(char_elem_result[i].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY));
esp_log_buffer_hex(GATTC_TAG, char_elem_result[i].uuid.uuid.uuid128, 16);
if (char_elem_result[i].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)//TX
{
gl_profile_tab[PROFILE_A_APP_ID].char_handle = char_elem_result[i].char_handle;
esp_ble_gattc_register_for_notify (gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].remote_bda,
char_elem_result[i].char_handle);
ESP_LOGE(GATTC_TAG, "TX- char_handle-0X%04X", gl_profile_tab[PROFILE_A_APP_ID].char_handle);
} else{
charrx_handle = char_elem_result[i].char_handle ;
ESP_LOGE(GATTC_TAG, "RX- charrx_handle-0X%04X", charrx_handle);
}//NUS 需要检出2个句柄 源码只有一个 再结构体里面 我就自己做一个全局的用一下
}
}
}
/* free char_elem_result */
free(char_elem_result);
}else{
ESP_LOGE(GATTC_TAG, "no char found");
}
}
break;
#endif
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT");
if (p_data->reg_for_notify.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "REG FOR NOTIFY failed: error status = %d", p_data->reg_for_notify.status);
}else{
uint16_t count = 0;
uint16_t notify_en = 1;
esp_gatt_status_t ret_status = esp_ble_gattc_get_attr_count( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
ESP_GATT_DB_DESCRIPTOR,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
&count);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT count=%d",count);
if (count > 0){
descr_elem_result = malloc(sizeof(esp_gattc_descr_elem_t) * count);
if (!descr_elem_result){
ESP_LOGE(GATTC_TAG, "malloc error, gattc no mem");
}else{
ret_status = esp_ble_gattc_get_descr_by_char_handle( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
p_data->reg_for_notify.handle,
notify_descr_uuid,
descr_elem_result,
&count);
ESP_LOGE(HCI_TAG, "5 esp_ble_gattc_get_descr_by_char_handle ok");
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_descr_by_char_handle error");
}
/* Every char has only one descriptor in our 'ESP_GATTS_DEMO' demo, so we used first 'descr_elem_result' */
//---2902 come here
/*
即将使能CCCD
Send RTC_CODE : B001080016040105012821000D0A
*/
#if 1
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
if (count > 0 && descr_elem_result[0].uuid.len == ESP_UUID_LEN_16 && descr_elem_result[0].uuid.uuid.uuid16 == ESP_GATT_UUID_CHAR_CLIENT_CONFIG){
ret_status = esp_ble_gattc_write_char_descr( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
descr_elem_result[0].handle,
sizeof(notify_en),
(uint8_t *)¬ify_en,//1
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_write_char_descr error");
}
ESP_LOGD(HCI_TAG, "6 esp_ble_gattc_write_char_descr ok 成功使能CCCD");
/* free descr_elem_result */
free(descr_elem_result);
}
}
else{
ESP_LOGE(GATTC_TAG, "decsr not found");
}
}
break;
}
case ESP_GATTC_NOTIFY_EVT:
//从机数据太多 暂时屏蔽log
//if (p_data->notify.is_notify){
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive notify value:");
//}else{
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive indicate value:");
//}
ESP_LOGI(HCI_TAG, "RX %d",p_data->notify.value_len);
rxdatacount ++;
rxdatanumber += p_data->notify.value_len;
esp_log_buffer_hex(GATTC_TAG, p_data->notify.value, p_data->notify.value_len);
#if 0
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
break;
case ESP_GATTC_WRITE_DESCR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "write descr failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write descr OK");
#if 0 //主机不要发任何消息
ESP_LOGI(HCI_TAG, "A: write descr success-----esp_ble_gattc_write_char--wait ack----- ");
uint8_t write_char_data[35];
for (int i = 0; i < sizeof(write_char_data); ++i)
{
write_char_data[i] = i % 256;
}
esp_ble_gattc_write_char( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
sizeof(write_char_data),
write_char_data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
#endif
break;
case ESP_GATTC_SRVC_CHG_EVT: {
esp_bd_addr_t bda;
memcpy(bda, p_data->srvc_chg.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ESP_GATTC_SRVC_CHG_EVT, bd_addr:");
esp_log_buffer_hex(GATTC_TAG, bda, sizeof(esp_bd_addr_t));
break;
}
case ESP_GATTC_WRITE_CHAR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(HCI_TAG, "A: acked ----311--write char failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write char success ");
break;
case ESP_GATTC_DISCONNECT_EVT://他不是来自GAP啊!!
connect = false;
get_server = false;
ESP_LOGI(HCI_TAG, "ESP_GATTC_DISCONNECT_EVT, reason = 0X%02X", p_data->disconnect.reason);
esp_ble_gap_start_scanning(30);
scancount++;
if (p_data->disconnect.reason==0X13)yescount++;
else nocount++;
ESP_LOGI(HCI_TAG,"TotalCount=%ld,yes=%ld,fail=%ld,rxdatacount=%d,rxdatanumber=%ld",scancount,yescount,nocount,rxdatacount,rxdatanumber);
rxdatacount =0;
rxdatanumber =0;
ESP_LOGI(HCI_TAG,"===========END=========");
break;
default:
break;
}
}
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
uint8_t *adv_name = NULL;
uint8_t adv_name_len = 0;
switch (event) {
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: {
//the unit of the duration is second
uint32_t duration = 30;
ESP_LOGD(HCI_TAG, "ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT 开始扫描");
ESP_LOGI(HCI_TAG,"ScanStart");
esp_ble_gap_start_scanning(duration);
break;
}
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
//scan start complete event to indicate scan start successfully or failed
if (param->scan_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(GATTC_TAG, "scan start failed, error status = %x", param->scan_start_cmpl.status);
break;
}
ESP_LOGD(HCI_TAG, "scan start success 成功开始扫描");
break;
case ESP_GAP_BLE_SCAN_RESULT_EVT: {
esp_ble_gap_cb_param_t *scan_result = (esp_ble_gap_cb_param_t *)param;
switch (scan_result->scan_rst.search_evt) {
case ESP_GAP_SEARCH_INQ_RES_EVT:
/*这里是扫描的结果 log很多 暂时关闭它*/
//esp_log_buffer_hex(GATTC_TAG, scan_result->scan_rst.bda, 6);
//ESP_LOGI(GATTC_TAG, "searched Adv Data Len %d, Scan Response Len %d", scan_result->scan_rst.adv_data_len, scan_result->scan_rst.scan_rsp_len);
adv_name = esp_ble_resolve_adv_data(scan_result->scan_rst.ble_adv,
ESP_BLE_AD_TYPE_NAME_CMPL, &adv_name_len);
#if CONFIG_EXAMPLE_DUMP_ADV_DATA_AND_SCAN_RESP
if (scan_result->scan_rst.adv_data_len > 0) {
ESP_LOGI(GATTC_TAG, "adv data:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[0], scan_result->scan_rst.adv_data_len);
}
if (scan_result->scan_rst.scan_rsp_len > 0) {
ESP_LOGI(GATTC_TAG, "scan resp:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[scan_result->scan_rst.adv_data_len], scan_result->scan_rst.scan_rsp_len);
}
#endif
if (adv_name != NULL) {
//ESP_LOGI(GATTC_TAG, "searched Device Name Len %d", adv_name_len);
//esp_log_buffer_char(GATTC_TAG, adv_name, adv_name_len);
if (strlen(remote_device_name) == adv_name_len && strncmp((char *)adv_name, remote_device_name, adv_name_len) == 0) {
ESP_LOGD(HCI_TAG, "1 searched device %s\n", remote_device_name);
ESP_LOGI(HCI_TAG,"ScanedTarget");
if (connect == false) {
connect = true;
ESP_LOGI(HCI_TAG, "ConnectTarget");
esp_ble_gap_stop_scanning();
esp_ble_gattc_open(gl_profile_tab[PROFILE_A_APP_ID].gattc_if, scan_result->scan_rst.bda, scan_result->scan_rst.ble_addr_type, true);
}
}
}
break;
case ESP_GAP_SEARCH_INQ_CMPL_EVT:
ESP_LOGI(HCI_TAG, "X ESP_GAP_SEARCH_INQ_CMPL_EVT-->ScanStart");
esp_ble_gap_start_scanning(30);
break;
default:
break;
}
break;
}
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
if (param->scan_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "scan stop failed, error status = %x", param->scan_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop scan successfully");
break;
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "adv stop failed, error status = %x", param->adv_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop adv successfully");
break;
case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
param->update_conn_params.status,
param->update_conn_params.min_int,
param->update_conn_params.max_int,
param->update_conn_params.conn_int,
param->update_conn_params.latency,
param->update_conn_params.timeout);
break;
default:
break;
}
}
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
/* If event is register event, store the gattc_if for each profile */
if (event == ESP_GATTC_REG_EVT) {
if (param->reg.status == ESP_GATT_OK) {
gl_profile_tab[param->reg.app_id].gattc_if = gattc_if;
} else {
ESP_LOGI(GATTC_TAG, "reg app failed, app_id %04x, status %d",
param->reg.app_id,
param->reg.status);
return;
}
}
/* If the gattc_if equal to profile A, call profile A cb handler,
* so here call each profile's callback */
do {
int idx;
for (idx = 0; idx < PROFILE_NUM; idx++) {
if (gattc_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
gattc_if == gl_profile_tab[idx].gattc_if) {
if (gl_profile_tab[idx].gattc_cb) {
gl_profile_tab[idx].gattc_cb(event, gattc_if, param);
}
}
}
} while (0);
}
void app_main(void)
{
// Initialize NVS.
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_init();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s init bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
//register the callback function to the gap module
ret = esp_ble_gap_register_callback(esp_gap_cb);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gap register failed, error code = %x\n", __func__, ret);
return;
}
//register the callback function to the gattc module
ret = esp_ble_gattc_register_callback(esp_gattc_cb);
if(ret){
ESP_LOGE(GATTC_TAG, "%s gattc register failed, error code = %x\n", __func__, ret);
return;
}
ret = esp_ble_gattc_app_register(PROFILE_A_APP_ID);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gattc app register failed, error code = %x\n", __func__, ret);
}
esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
if (local_mtu_ret){
ESP_LOGE(GATTC_TAG, "set local MTU failed, error code = %x", local_mtu_ret);
}
}
代码C
/*
* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Unlicense OR CC0-1.0
*/
/****************************************************************************
*
* This demo showcases BLE GATT client. It can scan BLE devices and connect to one device.
* Run the gatt_server demo, the client demo will automatically connect to the gatt_server demo.
* Client demo will enable gatt_server's notify after connection. The two devices will then exchange
* data.
*
****************************************************************************/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include "nvs.h"
#include "nvs_flash.h"
#include "esp_bt.h"
#include "esp_gap_ble_api.h"
#include "esp_gattc_api.h"
#include "esp_gatt_defs.h"
#include "esp_bt_main.h"
#include "esp_gatt_common_api.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
/***个性化***/
//typedef uint8_t esp_bd_addr_t[ESP_BD_ADDR_LEN];
char* stringMac(esp_bd_addr_t Arr)
{
static char mac[13]={0};
sprintf(mac,"%02X%02X%02X%02X%02X%02X",Arr[0],Arr[1],Arr[2],Arr[3],Arr[4],Arr[5]);
return mac;
}
#define HCI_TAG "KOSON"
long scancount =0;
long yescount =0;
long nocount =0;
int rxdatacount =0;
long rxdatanumber =0;
/***个性化***/
#define GATTC_TAG "GATTC_DEMO"
//#define REMOTE_SERVICE_UUID 0x00FF
#define REMOTE_SERVICE_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x01, 0x00, 0x40, 0x6E}
//#define REMOTE_NOTIFY_CHAR_UUID 0xFF01
#define REMOTE_NOTIFY_CHAR_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x03, 0x00, 0x40, 0x6E}
#define REMOTE_RX_CHAR_UUID {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x02, 0x00, 0x40, 0x6E}
#define PROFILE_NUM 1
#define PROFILE_A_APP_ID 0
#define INVALID_HANDLE 0
static const char remote_device_name[] = "M_IZAR_ESP_TEST";//"M_IZAR_ESP_TEST";// "M_IZAR_TEST";// "M_IZAR_ALVIN";//"ESP_GATTS_DEMO";
static bool connect = false;
static bool get_server = false;
static esp_gattc_char_elem_t *char_elem_result = NULL;
static esp_gattc_descr_elem_t *descr_elem_result = NULL;
/* Declare static functions */
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param);
static esp_bt_uuid_t remote_filter_service_uuid = {
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_SERVICE_UUID,},
};
static esp_bt_uuid_t remote_filter_char_uuid = {//remote_filter_char_uuid 关注 它 是不是也可以如法炮制把RX拿出来?
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_NOTIFY_CHAR_UUID,},
};
static esp_bt_uuid_t remote_filter_char_uuid2 = {//remote_filter_char_uuid 关注 它 是不是也可以如法炮制把RX拿出来?
.len = ESP_UUID_LEN_128,
.uuid = {.uuid128 = REMOTE_RX_CHAR_UUID,},
};
static esp_bt_uuid_t notify_descr_uuid = {
.len = ESP_UUID_LEN_16,
//.uuid = {.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG,},
.uuid = {.uuid16 = 0x2902,},
};
static esp_ble_scan_params_t ble_scan_params = {
.scan_type = BLE_SCAN_TYPE_ACTIVE,//BLE_SCAN_TYPE_PASSIVE,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
.scan_interval = 0x30,
.scan_window = 0x20,
.scan_duplicate = BLE_SCAN_DUPLICATE_DISABLE//BLE_SCAN_DUPLICATE_ENABLE
};
struct gattc_profile_inst {
esp_gattc_cb_t gattc_cb;
uint16_t gattc_if;
uint16_t app_id;
uint16_t conn_id;
uint16_t service_start_handle;
uint16_t service_end_handle;
uint16_t char_handle;
esp_bd_addr_t remote_bda;
};
/* One gatt-based profile one app_id and one gattc_if, this array will store the gattc_if returned by ESP_GATTS_REG_EVT */
static struct gattc_profile_inst gl_profile_tab[PROFILE_NUM] = {
[PROFILE_A_APP_ID] = {
.gattc_cb = gattc_profile_event_handler,
.gattc_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
};
/*KOSON*/
uint16_t charrx_handle = 0;
void ESP_BLE_Send(esp_gatt_if_t gattc_if3,uint8_t *data,int datalen){
ESP_LOGE(HCI_TAG, "ESP_BLE_Send:");
esp_log_buffer_hex(HCI_TAG, data, datalen);
esp_ble_gattc_write_char( gattc_if3,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
//gl_profile_tab[PROFILE_A_APP_ID].char_handle,
charrx_handle,
datalen,
data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
uint8_t hex_to_char(uint8_t ucData)
{
if(ucData < 10){
return ucData+'0';
}
else{
return ucData-10+'A';
}
}
unsigned char str_to_int(unsigned char dData)
{
unsigned char rst=0;
if((dData >= '0')&& (dData <= '9'))
rst = dData-'0';
else if((dData >= 'A')&&(dData <= 'F'))
rst = dData+10-'A';
else if((dData >= 'a')&&(dData <= 'f'))
rst = dData+10-'a';
else rst = 0;//不是ASCII的char
return rst;
}
/*"1234"---->0X12 0X34 参数3一般是strlen*/
int memcpy_down( unsigned char *respone, const char *data , int length)
{
ESP_LOGE(GATTC_TAG, "memcpy_down %s %d",data,length);
if(length%2 != 0) return -1;
for( int i = 0 ; i < length/2 ;i++)
{
*respone++ = (((str_to_int(data[i*2])<<4)&0xf0)|(str_to_int(data[i*2+1])&0x0f));
}
return length/2 ;
}
/*KOSON*/
static void gattc_profile_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
esp_ble_gattc_cb_param_t *p_data = (esp_ble_gattc_cb_param_t *)param;
switch (event) {
case ESP_GATTC_REG_EVT:
ESP_LOGD(HCI_TAG, "ESP_GATTC_REG_EVT 马上去设置扫描参数");
esp_err_t scan_ret = esp_ble_gap_set_scan_params(&ble_scan_params);
if (scan_ret){
ESP_LOGE(GATTC_TAG, "set scan params error, error code = %x", scan_ret);
}
break;
case ESP_GATTC_CONNECT_EVT:{
ESP_LOGD(GATTC_TAG, "ESP_GATTC_CONNECT_EVT conn_id %d, if %d", p_data->connect.conn_id, gattc_if);
gl_profile_tab[PROFILE_A_APP_ID].conn_id = p_data->connect.conn_id;
memcpy(gl_profile_tab[PROFILE_A_APP_ID].remote_bda, p_data->connect.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGD(HCI_TAG, "准备连接这个MAC的从机 REMOTE BDA:");
//esp_log_buffer_hex(GATTC_TAG, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ConnectedTarget %s",stringMac(p_data->connect.remote_bda));
esp_err_t mtu_ret = esp_ble_gattc_send_mtu_req (gattc_if, p_data->connect.conn_id);
if (mtu_ret){
ESP_LOGE(GATTC_TAG, "config MTU error, error code = %x", mtu_ret);
}
ESP_LOGE(HCI_TAG, " <KK> 设置MTU [定位gattc_if=%d]",gattc_if);//3
/*测试扫描150次 成功100次 失败50次 所以暂时不设置这个试试 优化 1*/
break;
}
case ESP_GATTC_OPEN_EVT:
if (param->open.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "open failed, status %d", p_data->open.status);
break;
}
ESP_LOGI(GATTC_TAG, "open success");
break;
case ESP_GATTC_DIS_SRVC_CMPL_EVT:
if (param->dis_srvc_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "discover service failed, status %d", param->dis_srvc_cmpl.status);
break;
}
ESP_LOGI(HCI_TAG, "2 discover service complete conn_id %d", param->dis_srvc_cmpl.conn_id);
esp_ble_gattc_search_service(gattc_if, param->cfg_mtu.conn_id, &remote_filter_service_uuid);
break;
case ESP_GATTC_CFG_MTU_EVT:
if (param->cfg_mtu.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG,"config mtu failed, error status = %x", param->cfg_mtu.status);
}
ESP_LOGD(HCI_TAG, "<KK> 设置MTU成功 ESP_GATTC_CFG_MTU_EVT, Status %d, MTU %d, conn_id %d", param->cfg_mtu.status, param->cfg_mtu.mtu, param->cfg_mtu.conn_id);
break;
case ESP_GATTC_SEARCH_RES_EVT: {
ESP_LOGD(GATTC_TAG, "SEARCH RES: conn_id = %x is primary service %d", p_data->search_res.conn_id, p_data->search_res.is_primary);
ESP_LOGD(GATTC_TAG, "start handle %d end handle %d current handle value %d", p_data->search_res.start_handle, p_data->search_res.end_handle, p_data->search_res.srvc_id.inst_id);
//if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_16 && p_data->search_res.srvc_id.uuid.uuid.uuid16 == REMOTE_SERVICE_UUID) {
if (p_data->search_res.srvc_id.uuid.len == ESP_UUID_LEN_128) {
ESP_LOGI(HCI_TAG, "3 service found");
get_server = true;
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle = p_data->search_res.start_handle;
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle = p_data->search_res.end_handle;
ESP_LOGD(GATTC_TAG, "UUID16: %x", p_data->search_res.srvc_id.uuid.uuid.uuid16);
}
break;
}
#if 1
case ESP_GATTC_SEARCH_CMPL_EVT:
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
ESP_LOGI(GATTC_TAG, "Get service information from remote device");
} else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
ESP_LOGI(GATTC_TAG, "Get service information from flash");
} else {
ESP_LOGI(GATTC_TAG, "unknown service source");
}
ESP_LOGE(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT get_server %d",get_server);
if (get_server){
uint16_t count = 0;
esp_gatt_status_t status = esp_ble_gattc_get_attr_count( gattc_if,
p_data->search_cmpl.conn_id,
ESP_GATT_DB_CHARACTERISTIC,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
INVALID_HANDLE,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
ESP_LOGE(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT count %d",count);
if (count > 0){
char_elem_result = (esp_gattc_char_elem_t *)malloc(sizeof(esp_gattc_char_elem_t) * count);
if (!char_elem_result){
ESP_LOGE(GATTC_TAG, "gattc no mem");
}else{
//插入
//找第一个
status = esp_ble_gattc_get_char_by_uuid( gattc_if,
p_data->search_cmpl.conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
remote_filter_char_uuid2,
char_elem_result,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid error");
}
/* Every service have only one char in our 'ESP_GATTS_DEMO' demo, so we used first 'char_elem_result' */
if (count > 0){
charrx_handle = char_elem_result[0].char_handle;
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid count must=1 only one %d 0X%X",count,charrx_handle);
}
//找第二个
status = esp_ble_gattc_get_char_by_uuid( gattc_if,
p_data->search_cmpl.conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
remote_filter_char_uuid,
char_elem_result,
&count);
if (status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid error");
}
/* Every service have only one char in our 'ESP_GATTS_DEMO' demo, so we used first 'char_elem_result' */
if (count > 0 && (char_elem_result[0].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)){
gl_profile_tab[PROFILE_A_APP_ID].char_handle = char_elem_result[0].char_handle;
esp_ble_gattc_register_for_notify (gattc_if, gl_profile_tab[PROFILE_A_APP_ID].remote_bda, char_elem_result[0].char_handle);
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_char_by_uuid count must=1 only one=== %d 0X%X",count,char_elem_result[0].char_handle);
}
}
/* free char_elem_result */
free(char_elem_result);
}else{
ESP_LOGE(GATTC_TAG, "no char found");
}
}
break;
#else
case ESP_GATTC_SEARCH_CMPL_EVT:
if (p_data->search_cmpl.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "search service failed, error status = %x", p_data->search_cmpl.status);
break;
}
if(p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_REMOTE_DEVICE) {
ESP_LOGI(GATTC_TAG, "Get service information from remote device");
} else if (p_data->search_cmpl.searched_service_source == ESP_GATT_SERVICE_FROM_NVS_FLASH) {
ESP_LOGI(GATTC_TAG, "Get service information from flash");
} else {
ESP_LOGI(GATTC_TAG, "unknown service source");
}
ESP_LOGD(HCI_TAG, "ESP_GATTC_SEARCH_CMPL_EVT get_server=%d",get_server);
if (get_server){
uint16_t count = 0;
uint16_t offset = 0;
esp_gatt_status_t ret_status = esp_ble_gattc_get_attr_count(gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
ESP_GATT_DB_CHARACTERISTIC,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
p_data->reg_for_notify.handle,//??? INVALID_HANDLE,
&count);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error, %d", __LINE__);
}
ESP_LOGD(HCI_TAG, "4 ESP_GATTC_SEARCH_CMPL_EVT count=%d",count);
if (count > 0){
char_elem_result = (esp_gattc_char_elem_t *)malloc(sizeof(esp_gattc_char_elem_t) * count);
if (!char_elem_result){
ESP_LOGE(GATTC_TAG, "gattc no mem");
}else{
ret_status = esp_ble_gattc_get_all_char(gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
char_elem_result,
&count,
offset);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_all_char error, %d", __LINE__);
}
if (count > 0){
for (int i = 0; i < count; ++i)
{
//if (char_elem_result[i].uuid.len == ESP_UUID_LEN_16 )
//{
ESP_LOGE(GATTC_TAG, "[count %d]+++%04X+++%d+++%04X+++[是否需要使能%d] uuid如下", i,char_elem_result[i].char_handle,char_elem_result[i].uuid.len,char_elem_result[i].uuid.uuid.uuid16,(char_elem_result[i].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY));
esp_log_buffer_hex(GATTC_TAG, char_elem_result[i].uuid.uuid.uuid128, 16);
if (char_elem_result[i].properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)//TX
{
gl_profile_tab[PROFILE_A_APP_ID].char_handle = char_elem_result[i].char_handle;
esp_ble_gattc_register_for_notify (gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].remote_bda,
char_elem_result[i].char_handle);
ESP_LOGE(GATTC_TAG, "TX- char_handle-0X%04X", gl_profile_tab[PROFILE_A_APP_ID].char_handle);
} else{
charrx_handle = char_elem_result[i].char_handle ;
ESP_LOGE(GATTC_TAG, "RX- charrx_handle-0X%04X", charrx_handle);
}//NUS 需要检出2个句柄 源码只有一个 再结构体里面 我就自己做一个全局的用一下
}
}
}
/* free char_elem_result */
free(char_elem_result);
}else{
ESP_LOGE(GATTC_TAG, "no char found");
}
}
break;
#endif
case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT");
if (p_data->reg_for_notify.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "REG FOR NOTIFY failed: error status = %d", p_data->reg_for_notify.status);
}else{
uint16_t count = 0;
uint16_t notify_en = 1;
esp_gatt_status_t ret_status = esp_ble_gattc_get_attr_count( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
ESP_GATT_DB_DESCRIPTOR,
gl_profile_tab[PROFILE_A_APP_ID].service_start_handle,
gl_profile_tab[PROFILE_A_APP_ID].service_end_handle,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
&count);
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_attr_count error");
}
ESP_LOGE(HCI_TAG, "ESP_GATTC_REG_FOR_NOTIFY_EVT count=%d",count);
if (count > 0){
descr_elem_result = malloc(sizeof(esp_gattc_descr_elem_t) * count);
if (!descr_elem_result){
ESP_LOGE(GATTC_TAG, "malloc error, gattc no mem");
}else{
ret_status = esp_ble_gattc_get_descr_by_char_handle( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
p_data->reg_for_notify.handle,
notify_descr_uuid,
descr_elem_result,
&count);
ESP_LOGE(HCI_TAG, "5 esp_ble_gattc_get_descr_by_char_handle ok");
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_get_descr_by_char_handle error");
}
/* Every char has only one descriptor in our 'ESP_GATTS_DEMO' demo, so we used first 'descr_elem_result' */
//---2902 come here
/*
即将使能CCCD
Send RTC_CODE : B001080016040105012821000D0A
*/
#if 1
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
if (count > 0 && descr_elem_result[0].uuid.len == ESP_UUID_LEN_16 && descr_elem_result[0].uuid.uuid.uuid16 == ESP_GATT_UUID_CHAR_CLIENT_CONFIG){
ret_status = esp_ble_gattc_write_char_descr( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
descr_elem_result[0].handle,
sizeof(notify_en),
(uint8_t *)¬ify_en,//1
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
}
if (ret_status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "esp_ble_gattc_write_char_descr error");
}
ESP_LOGD(HCI_TAG, "6 esp_ble_gattc_write_char_descr ok 成功使能CCCD");
/* free descr_elem_result */
free(descr_elem_result);
}
}
else{
ESP_LOGE(GATTC_TAG, "decsr not found");
}
}
break;
}
case ESP_GATTC_NOTIFY_EVT:
//从机数据太多 暂时屏蔽log
//if (p_data->notify.is_notify){
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive notify value:");
//}else{
// ESP_LOGI(GATTC_TAG, "ESP_GATTC_NOTIFY_EVT, receive indicate value:");
//}
ESP_LOGI(HCI_TAG, "RX %d",p_data->notify.value_len);
rxdatacount ++;
rxdatanumber += p_data->notify.value_len;
esp_log_buffer_hex(GATTC_TAG, p_data->notify.value, p_data->notify.value_len);
#if 0
const char *RTC_CODE_string="B001080016040105012821000D0A";
uint8_t RTC_CODE_hex[20]={0};
int datalen=memcpy_down(RTC_CODE_hex,RTC_CODE_string,strlen(RTC_CODE_string));
ESP_BLE_Send(gattc_if,RTC_CODE_hex,datalen);
#endif
break;
case ESP_GATTC_WRITE_DESCR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(GATTC_TAG, "write descr failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write descr OK");
#if 0 //主机不要发任何消息
ESP_LOGI(HCI_TAG, "A: write descr success-----esp_ble_gattc_write_char--wait ack----- ");
uint8_t write_char_data[35];
for (int i = 0; i < sizeof(write_char_data); ++i)
{
write_char_data[i] = i % 256;
}
esp_ble_gattc_write_char( gattc_if,
gl_profile_tab[PROFILE_A_APP_ID].conn_id,
gl_profile_tab[PROFILE_A_APP_ID].char_handle,
sizeof(write_char_data),
write_char_data,
ESP_GATT_WRITE_TYPE_RSP,
ESP_GATT_AUTH_REQ_NONE);
#endif
break;
case ESP_GATTC_SRVC_CHG_EVT: {
esp_bd_addr_t bda;
memcpy(bda, p_data->srvc_chg.remote_bda, sizeof(esp_bd_addr_t));
ESP_LOGI(GATTC_TAG, "ESP_GATTC_SRVC_CHG_EVT, bd_addr:");
esp_log_buffer_hex(GATTC_TAG, bda, sizeof(esp_bd_addr_t));
break;
}
case ESP_GATTC_WRITE_CHAR_EVT:
if (p_data->write.status != ESP_GATT_OK){
ESP_LOGE(HCI_TAG, "A: acked ----311--write char failed, error status = %x", p_data->write.status);
break;
}
ESP_LOGE(GATTC_TAG, "write char success ");
break;
case ESP_GATTC_DISCONNECT_EVT://他不是来自GAP啊!!
connect = false;
get_server = false;
ESP_LOGI(HCI_TAG, "ESP_GATTC_DISCONNECT_EVT, reason = 0X%02X", p_data->disconnect.reason);
esp_ble_gap_start_scanning(30);
scancount++;
if (p_data->disconnect.reason==0X13)yescount++;
else nocount++;
ESP_LOGI(HCI_TAG,"TotalCount=%ld,yes=%ld,fail=%ld,rxdatacount=%d,rxdatanumber=%ld",scancount,yescount,nocount,rxdatacount,rxdatanumber);
rxdatacount =0;
rxdatanumber =0;
ESP_LOGI(HCI_TAG,"===========END=========");
break;
default:
break;
}
}
static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
uint8_t *adv_name = NULL;
uint8_t adv_name_len = 0;
switch (event) {
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: {
//the unit of the duration is second
uint32_t duration = 30;
ESP_LOGD(HCI_TAG, "ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT 开始扫描");
ESP_LOGI(HCI_TAG,"ScanStart");
esp_ble_gap_start_scanning(duration);
break;
}
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
//scan start complete event to indicate scan start successfully or failed
if (param->scan_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(GATTC_TAG, "scan start failed, error status = %x", param->scan_start_cmpl.status);
break;
}
ESP_LOGD(HCI_TAG, "scan start success 成功开始扫描");
break;
case ESP_GAP_BLE_SCAN_RESULT_EVT: {
esp_ble_gap_cb_param_t *scan_result = (esp_ble_gap_cb_param_t *)param;
switch (scan_result->scan_rst.search_evt) {
case ESP_GAP_SEARCH_INQ_RES_EVT:
/*这里是扫描的结果 log很多 暂时关闭它*/
//esp_log_buffer_hex(GATTC_TAG, scan_result->scan_rst.bda, 6);
//ESP_LOGI(GATTC_TAG, "searched Adv Data Len %d, Scan Response Len %d", scan_result->scan_rst.adv_data_len, scan_result->scan_rst.scan_rsp_len);
adv_name = esp_ble_resolve_adv_data(scan_result->scan_rst.ble_adv,
ESP_BLE_AD_TYPE_NAME_CMPL, &adv_name_len);
#if CONFIG_EXAMPLE_DUMP_ADV_DATA_AND_SCAN_RESP
if (scan_result->scan_rst.adv_data_len > 0) {
ESP_LOGI(GATTC_TAG, "adv data:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[0], scan_result->scan_rst.adv_data_len);
}
if (scan_result->scan_rst.scan_rsp_len > 0) {
ESP_LOGI(GATTC_TAG, "scan resp:");
esp_log_buffer_hex(GATTC_TAG, &scan_result->scan_rst.ble_adv[scan_result->scan_rst.adv_data_len], scan_result->scan_rst.scan_rsp_len);
}
#endif
if (adv_name != NULL) {
//ESP_LOGI(GATTC_TAG, "searched Device Name Len %d", adv_name_len);
//esp_log_buffer_char(GATTC_TAG, adv_name, adv_name_len);
if (strlen(remote_device_name) == adv_name_len && strncmp((char *)adv_name, remote_device_name, adv_name_len) == 0) {
ESP_LOGD(HCI_TAG, "1 searched device %s\n", remote_device_name);
ESP_LOGI(HCI_TAG,"ScanedTarget");
if (connect == false) {
connect = true;
ESP_LOGI(HCI_TAG, "ConnectTarget");
esp_ble_gap_stop_scanning();
esp_ble_gattc_open(gl_profile_tab[PROFILE_A_APP_ID].gattc_if, scan_result->scan_rst.bda, scan_result->scan_rst.ble_addr_type, true);
}
}
}
break;
case ESP_GAP_SEARCH_INQ_CMPL_EVT:
ESP_LOGI(HCI_TAG, "X ESP_GAP_SEARCH_INQ_CMPL_EVT-->ScanStart");
esp_ble_gap_start_scanning(30);
break;
default:
break;
}
break;
}
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
if (param->scan_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "scan stop failed, error status = %x", param->scan_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop scan successfully");
break;
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS){
ESP_LOGE(GATTC_TAG, "adv stop failed, error status = %x", param->adv_stop_cmpl.status);
break;
}
ESP_LOGI(GATTC_TAG, "stop adv successfully");
break;
case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
ESP_LOGI(GATTC_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
param->update_conn_params.status,
param->update_conn_params.min_int,
param->update_conn_params.max_int,
param->update_conn_params.conn_int,
param->update_conn_params.latency,
param->update_conn_params.timeout);
break;
default:
break;
}
}
static void esp_gattc_cb(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if, esp_ble_gattc_cb_param_t *param)
{
/* If event is register event, store the gattc_if for each profile */
if (event == ESP_GATTC_REG_EVT) {
if (param->reg.status == ESP_GATT_OK) {
gl_profile_tab[param->reg.app_id].gattc_if = gattc_if;
} else {
ESP_LOGI(GATTC_TAG, "reg app failed, app_id %04x, status %d",
param->reg.app_id,
param->reg.status);
return;
}
}
/* If the gattc_if equal to profile A, call profile A cb handler,
* so here call each profile's callback */
do {
int idx;
for (idx = 0; idx < PROFILE_NUM; idx++) {
if (gattc_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
gattc_if == gl_profile_tab[idx].gattc_if) {
if (gl_profile_tab[idx].gattc_cb) {
gl_profile_tab[idx].gattc_cb(event, gattc_if, param);
}
}
}
} while (0);
}
void app_main(void)
{
// Initialize NVS.
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_init();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s init bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(GATTC_TAG, "%s enable bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
return;
}
//register the callback function to the gap module
ret = esp_ble_gap_register_callback(esp_gap_cb);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gap register failed, error code = %x\n", __func__, ret);
return;
}
//register the callback function to the gattc module
ret = esp_ble_gattc_register_callback(esp_gattc_cb);
if(ret){
ESP_LOGE(GATTC_TAG, "%s gattc register failed, error code = %x\n", __func__, ret);
return;
}
ret = esp_ble_gattc_app_register(PROFILE_A_APP_ID);
if (ret){
ESP_LOGE(GATTC_TAG, "%s gattc app register failed, error code = %x\n", __func__, ret);
}
esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
if (local_mtu_ret){
ESP_LOGE(GATTC_TAG, "set local MTU failed, error code = %x", local_mtu_ret);
}
}