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Call to memset crashes my application

image description When I am stepping through my application code crashing at

memset(&cccd_md, 0, sizeof(cccd_md));

"Setup information:

  • IDE: Using IAR
  • Device: nRF52832
  • Soft device: S132 v 2.0.0
  • SDK version: 11.0.0

Memory organisation:

ROM : 0x1c000 0x7ffff

RAM: 0x20002080 0x2000ffff

CSTACK : 0x1000

HEAP: 0x300

Memory Usage:

31 638 bytes of readonly code memory

10 183 bytes of readonly data memory

10 944 bytes of readwrite data memory

Code:

static uint32_t vitameter_is_test_inserted_char_add(ble_vitameter_service_t* ble_vitameter_service)
    {
      // Add a custom characteristic UUID
      uint32_t err_code;
       
      ble_uuid_t            ble_uuid;
      
      ble_uuid128_t base_uuid = {BLE_UUID_VITAMETER_BASE_UUID};  
      ble_uuid.uuid = BLE_UUID_VITAMETER_CHAR_IS_TEST_INSERTED_UUID; 
      err_code = sd_ble_uuid_vs_add (&base_uuid, &ble_uuid.type);
      if (err_code != NRF_SUCCESS){
        return err_code;
      }
      
      ble_gatts_attr_md_t   cccd_md;
      memset(&cccd_md, 0, sizeof(cccd_md));
      BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
      BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
      cccd_md.vloc       = BLE_GATTS_VLOC_STACK;
      
      ble_gatts_char_md_t   char_md;
      memset(&char_md, 0, sizeof(char_md));
      char_md.char_props.read   = 1;
      char_md.char_props.notify = 1;
      char_md.p_char_user_desc  = NULL;
      char_md.p_char_pf         = NULL;
      char_md.p_user_desc_md    = NULL;
      char_md.p_cccd_md         = &cccd_md;
      char_md.p_sccd_md         = NULL;
      
      ble_gatts_attr_md_t   attr_md;
      memset(&attr_md, 0, sizeof(attr_md));
      BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
      BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.write_perm);
      attr_md.vloc       = BLE_GATTS_VLOC_STACK;
      attr_md.rd_auth    = 0;
      attr_md.wr_auth    = 0;
      attr_md.vlen       = 0;
    
      ble_gatts_attr_t      attr_char_value;
      memset(&attr_char_value, 0, sizeof(attr_char_value));
      attr_char_value.p_uuid        = &ble_uuid;
      attr_char_value.p_attr_md     = &attr_md;
      attr_char_value.init_offs     = 0;
      attr_char_value.max_len       = 4;
      attr_char_value.init_len      = 4;
      uint8_t value[4]              = {0x12,0x34,0x56,0x78};
      attr_char_value.p_value       = value;
    
      err_code = sd_ble_gatts_characteristic_add(ble_vitameter_service->service_handle, 
                                                 &char_md, 
                                                 &attr_char_value, 
                                                 &ble_vitameter_service->is_test_inserted_handles);
      if (err_code != NRF_SUCCESS){
        SEGGER_RTT_printf(0, "err_code: %d \n", err_code);
        return err_code;
      }

  return err_code;
}

I tried varying CSTACK size, HEAP but didn't work. Please suggest me how to fix this. Thanks!

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