undefined error with calling ble_gatts_count_cfg function - esp32

Question

I am programing my esp32 to be able to advertise my custom services/characteristics. I am failry new to esp idf and I am struggling to program bluetooth using nimBLE. during building,there is no error thrown but while monitoring, i receive the following error from the function in main:
I (391) heap_init: At 3FFB6388 len 00001C78 (7 KiB): DRAM
I (397) heap_init: At 3FFB9A20 len 00004108 (16 KiB): DRAM
I (403) heap_init: At 3FFC49F0 len 0001B610 (109 KiB): DRAM
I (409) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (415) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (422) heap_init: At 40096DB0 len 00009250 (36 KiB): IRAM
I (429) spi_flash: detected chip: generic
I (433) spi_flash: flash io: dio
I (438) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (484) BTDM_INIT: BT controller compile version [1342a48]
I (484) system_api: Base MAC address is not set
I (484) system_api: read default base MAC address from EFUSE
I (494) phy_init: phy_version 4670,719f9f6,Feb 18 2021,17:07:07
ESP_ERROR_CHECK failed: esp_err_t 0x3 (ERROR) at 0x4008e6f4
0x4008e6f4: _esp_error_check_failed at C:/Users/Kanimba/Desktop/esp-idf/components/esp_common/src/esp_err.c:41
file: "../main/main.c" line 35
func: app_main
expression: gatt_svrs_init()
abort() was called at PC 0x4008e6f7 on core 0
0x4008e6f7: _esp_error_check_failed at C:/Users/Kanimba/Desktop/esp-idf/components/esp_common/src/esp_err.c:42
Backtrace:0x4008f64b:0x3ffbc340 0x4008fe1d:0x3ffbc360 0x400951f2:0x3ffbc380 0x4008e6f7:0x3ffbc3f0 0x400d5a86:0x3ffbc410 0x401205ed:0x3ffbc430 0x40092e45:0x3ffbc450
0x4008f64b: panic_abort at C:/Users/Kanimba/Desktop/esp-idf/components/esp_system/panic.c:356
0x4008fe1d: esp_system_abort at C:/Users/Kanimba/Desktop/esp-idf/components/esp_system/system_api.c:112
0x400951f2: abort at C:/Users/Kanimba/Desktop/esp-idf/components/newlib/abort.c:46
0x4008e6f7: _esp_error_check_failed at C:/Users/Kanimba/Desktop/esp-idf/components/esp_common/src/esp_err.c:42
0x400d5a86: app_main at C:\Users\Kanimba\Desktop\work_project\esp\embedded-test-ble\build/../main/main.c:35 (discriminator 1)
0x401205ed: main_task at C:/Users/Kanimba/Desktop/esp-idf/components/freertos/port/port_common.c:133 (discriminator 2)
0x40092e45: vPortTaskWrapper at C:/Users/Kanimba/Desktop/esp-idf/components/freertos/port/xtensa/port.c:168
whereby gatt_svrs_init() is called to initializes the following;
int gatt_svrs_init(void) {
int rc;
ble_svc_gap_init();
ble_svc_gatt_init();
rc = ble_gatts_count_cfg(gatt_svsc);
if (rc != 0) {
return rc;
}
rc = ble_gatts_add_svcs(gatt_svsc);
if (rc != 0) {
return rc;
}
return 0;
}
my main,c file looks like this
#include "config.h"
#include "gatt_svr.h"
#include "esp_log.h"
#include "esp_nimble_hci.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "nvs_flash.h"
void app_main() {
int rc;
/* initalise non-valatile storage 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);
/* initialise nimble */
ESP_ERROR_CHECK(esp_nimble_hci_and_controller_init());
/* initialise apache port to nimble */
nimble_port_init();
/*Initialize the NimBLE host configuration */
ble_hs_cfg.reset_cb = ble_on_reset;
ble_hs_cfg.sync_cb = ble_on_sync;
ble_hs_cfg.gatts_register_cb = gatt_svr_register_cb;
ble_hs_cfg.store_status_cb =
ble_store_util_status_rr; // said to not be useful, need to do more,
ESP_ERROR_CHECK(gatt_svrs_init());
// assert(rc == 0);
/*set the default device name*/
ESP_ERROR_CHECK(ble_svc_gap_device_name_set(DEVICE_NAME));
// storing configuration "quite not sure how this function works"
ble_store_config_init();
nimble_port_freertos_init(host_task);
}
and the structure of the service:
static const struct ble_gatt_svc_def gatt_svsc[] = {
{/* Device info service/ SIG */
.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = BLE_UUID16_DECLARE(DEVICE_INFO_SERVICE),
.characteristics =
(struct ble_gatt_chr_def[]){
{/* manufacturer name characteristic */
.uuid = BLE_UUID16_DECLARE(MANUFACTURER_NAME),
.flags = BLE_GATT_CHR_F_READ,
.access_cb = gatt_svr_access_device_info},
{/*serial number characteristic */
.uuid = BLE_UUID16_DECLARE(DEVICE_SERIAL_NUMBER),
.flags = BLE_GATT_CHR_F_READ,
.access_cb = gatt_svr_access_device_info},
{/*software version characteristic */
.uuid = BLE_UUID16_DECLARE(SOFTWARE_VERSION),
.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_READ_ENC,
.access_cb = gatt_svr_access_device_info},
{0}}},
{.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = &DEVICE_STATE_SERVICE.u,
.characteristics =
(struct ble_gatt_chr_def[]){{
/* manufacturer name characteristic
*/
.uuid = &CURRENT_SPECTRUM.u,
.flags = BLE_GATT_CHR_F_READ,
},
{
/* manufacturer name characteristic
*/
.uuid = &DEVICE_TEMPERATURE.u,
.flags = BLE_GATT_CHR_F_READ,
},
{
/* manufacturer name characteristic
*/
.uuid = &CURRENT_INTESITY.u,
.flags = BLE_GATT_CHR_F_READ,
},
{0}}},
{.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = &MANUAL_SERVICE.u,
.characteristics =
(struct ble_gatt_chr_def[]){{
/* manula spectrum characteristic */
.uuid = &MANUAL_SPECTRUM.u,
.flags = BLE_GATT_CHR_F_READ,
},
{
/* light intensity characteristic */
.uuid = &LIGHT_INTESITY.u,
.flags = BLE_GATT_CHR_F_READ,
},
{
/* manual power characteristic */
.uuid = &MANUAL_POWER.u,
.flags = BLE_GATT_CHR_F_READ,
},
{0}}},
{.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = &SCHEDULER_SERVICE.u,
.characteristics =
(struct ble_gatt_chr_def[]){{
/* Start_stage characteristic */
.uuid = &STAGE_START.u,
.flags = BLE_GATT_CHR_F_WRITE,
},
{
/* start day hours characteristic */
.uuid = &DAY_START_HOURS.u,
.flags = BLE_GATT_CHR_F_WRITE,
},
{
/* manufacturer name characteristic
*/
.uuid = &DAY_END_HOURS.u,
.flags = BLE_GATT_CHR_F_WRITE,
},
{
/* Light intensity characteristic */
.uuid = &LIGHT_INTESITY.u,
.flags = BLE_GATT_CHR_F_WRITE,
},
{0}}},
{0}};

Answer 1

I think there should be a access_cb associated for a characteristic which has a read or write flag . Can you try adding a access_cb to the characteristic with UUID SCHEDULER_SERVICE , MANUAL_SERVICE and DEVICE_STATE_SERVICE to see if it helps.