DA14531 Name Change Service/Characteristic

Question

I was curious if there's a characteristic to change the GAP device name. 
 
 I know there's one to see the name, but I didn't see one to change the name. Is this one I'd have to manually create or is there a simple way to do so? 
 
 Thanks! 
 
 EDIT: 
 
 For those reading this in the future, I verified 3 answers for this. 1 is for a service and characteristic. The other 2 are for AT commands to accomplish the same task, 1 with persistent data and the other without.

OV_Renesas · Accepted Answer

Hi There, Thank you for posting your question online. Yes, it is possible to change the Device Name. I worked on the ble_app_peripheral example with SDK v6.0.18. I created a custom characteristic for the Custom Service 1. On user_custs1_impl.c file: void user_svc1_dev_name_wr_ind_handler (ke_msg_id_t const msgid,
 struct custs1_val_write_ind const *param,
 ke_task_id_t const dest_id,
 ke_task_id_t const src_id)
{

	char new_device_name[NEW_DEVICE_NAME_LENGTH] = "\0";

	memcpy(&new_device_name, &param->value, param->length);

	device_info.dev_name.length = (strlen(new_device_name) <= GAP_MAX_NAME_SIZE) ?strlen(new_device_name) : GAP_MAX_NAME_SIZE;

	memcpy(device_info.dev_name.name, new_device_name, device_info.dev_name.length);

	
} On user_peripheral.c file: void user_catch_rest_hndl(ke_msg_id_t const msgid,
 void const *param,
 ke_task_id_t const dest_id,
 ke_task_id_t const src_id)
{
 switch(msgid)
 {
 case CUSTS1_VAL_WRITE_IND:
 {
 struct custs1_val_write_ind const *msg_param = (struct custs1_val_write_ind const *)(param);

 switch (msg_param->handle)
 {
 case SVC1_IDX_CONTROL_POINT_VAL:
 user_svc1_ctrl_wr_ind_handler(msgid, msg_param, dest_id, src_id);
 break;
 
 case SVC1_IDX_DEV_NAME_VAL:
 user_svc1_dev_name_wr_ind_handler(msgid, msg_param, dest_id, src_id);
 break;
 .
 .
 . With the SmartBond App I connect into my device and I can change the Device name like this: ble_app_peripheral_dev_name.zip Kind Regards, OV_Renesas

OV_Renesas · Answer

Hi There, Thank you for the reply. 1) Yes, a custom at command to change the Device Name can be used on the datapump firmware. 2) No, there is only one name being used, which is the CLv2-CodeLess, the CLv2 is also the Short Device name which is being placed on the Advertising Data, while the CLv2-CodeLess is the full Device Name which is placed on the Scan Response Data and saved on the device_info struct. I worked on the CodeLess SDK v6.380.16.55 and followed the instructions mentioned on the CodeLess User Manual 6. Adding Custom Commands. The custom AT command I created is the AT+DEVNAME. On the user_at_commands.c file you can find the user_at_devname function: char new_device_name[GAP_MAX_NAME_SIZE] = "\0"; bool flag_devname= false; // Custom AT command to change the Device Name #ifdef USE_AT_DEVNAME void user_at_devname(struct at_cmd_params_t* arg, char* reply_string) { char zeroed[GAP_MAX_NAME_SIZE] = "0"; //Empty the new_device_name array memcpy(new_device_name, &zeroed, GAP_MAX_NAME_SIZE); //If AT+DEVNAME if( arg->arg_count ==0) { //We only printed out the name, so keep flag_devname = false; flag_devname = false; //Print the existing Device Name arch_sprintf(reply_string, "%s", device_info.dev_name.name); arg->success_flag = true; } else //else if AT+DEVNAME= { //We will change the Device Name (short and long) so change flag_devname= true flag_devname= true; //Empty the device_info struct memcpy(device_info.dev_name.name, &zeroed, GAP_MAX_NAME_SIZE); //Save the New device name into the new_device_name variable memcpy(&new_device_name, &arg->cmd_buffer[arg->arg_index[0]], GAP_MAX_NAME_SIZE); device_info.dev_name.length = (strlen(new_device_name) <= GAP_MAX_NAME_SIZE) ?strlen(new_device_name) : GAP_MAX_NAME_SIZE; //Save the New device name into the device_info struct memcpy(device_info.dev_name.name, new_device_name, device_info.dev_name.length); /* Set the Device Name to the codeless_env struct */ memcpy(&codeless_env.resp_data, &device_info.dev_name.name, device_info.dev_name.length); codeless_env.resp_data_len = strlen(new_device_name); // Instantiate the advertising update message to be sent struct gapm_update_advertise_data_cmd *cmd = KE_MSG_ALLOC(GAPM_UPDATE_ADVERTISE_DATA_CMD, TASK_GAPM, TASK_APP, gapm_update_advertise_data_cmd); cmd->operation = GAPM_UPDATE_ADVERTISE_DATA; //Set the Advertising Data as specifiec in user_app_init custom callback function #ifdef USE_AT_BINARY_MODE const uint8_t advertisement_data[] = #else uint8_t advertisement_data[] = #endif { // Complete list of 128bit service UUIDs #ifdef USE_AT_BINARY_MODE 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, SPS_SERV_ADV_UUID_REV_BYTES, #else 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #endif 3, GAP_AD_TYPE_MORE_16_BIT_UUID, 0xF5, 0xFE, //SUOTA Service // Bluetooth Device Name 5, GAP_AD_TYPE_SHORTENED_NAME, new_device_name[0], new_device_name[1], new_device_name[2], new_device_name[3] }; #ifndef USE_AT_BINARY_MODE for (uint8_t i = 0; i < 16; i++) { advertisement_data[2 + i] = codeless_const_env.adv_service_uuid[i]; } #endif //Save the advertisemnt_data into the codeless_env struct memcpy(&codeless_env.adv_data, &advertisement_data, sizeof(advertisement_data)); //Save the Advertisment data length into the codeless_env struct codeless_env.adv_data_len = sizeof(advertisement_data); // Update the Advertising data cmd->adv_data_len = codeless_env.adv_data_len; memcpy(cmd->adv_data, codeless_env.adv_data, codeless_env.adv_data_len); /* Set the Device Name to Scan response data and show it */ append_device_name(&cmd->scan_rsp_data_len, codeless_env.resp_data_len, &(cmd->scan_rsp_data[cmd->scan_rsp_data_len]), codeless_env.resp_data); // Send the message ke_msg_send(cmd); //Print the New name arch_sprintf(reply_string, "%s", device_info.dev_name.name); arg->success_flag = true; } } #endif However, when disconnected or when we use the AT+ADVSTOP and AT+ADVSTART commands we restart advertising via the user_advertise custom callback function. I modified the user_disconnect and the user_at_advstart functions in order to use the new device name set by the AT+DEVNAME command. Please see the screenshots below on how the AT command is being used: By default the Device Name is CLv2-CodeLess and you can see on the Advertising Data the Short Name: CLv2. When you use the AT+DEVNAME without any arguments, then it will print out the existing Device Name. When you use the AT+DEVNAME with arguments, it will use the arguments you used as the new Device Name: After that I can see on the SmartBond App: As you can see the first 4 characters are saved on the Advertising Data on the Short Name. When we Connect, the Device Name is shown in the first Service (Generic Access 0x1800) on the Characteristic Device Name: If you use the AT+DEVNAME command while connected, it will change the Device Name as well: After that, you should be able to see on the SmartBond App: Finally, when we disconnect we will keep advertising with the last name we used on the AT+DEVNAME command. If you use the AT+ADVSTOP command to stop advertising, change the Device Name via the AT+DEVNAME command and start advertising with the AT+ADVSTART command, you should see the new device name. codeless_5xx_devname.zip Kind Regards, OV_Renesas

OV_Renesas · Answer

Hi There, Thanks for the reply and apologies for the delay. Daeolt said: If I'm able, it seems like combining the second half of this tutorial with such an AT command could accomplish what I'm looking for. In order to save the new Device Name into the SPI Flash you should work with this tutorial: 5. DA14531 SPI Flash — DA145XX Tutorial SDK peripherals (renesas.com) Daeolt said: Another question, am I correct in assuming I cannot compile changes to the last file you added because it requires a paid edition of Keil-MDK? Yes, due to the ARM Compiler v6 and the size of CodeLess SDK you will not be able to compile this project without a license. Please find the attached codeless_5xx_devname_v2.zip file. Each time we use the AT+DEVNAME command to change the device name, we store the Device Name into the SPI Flash on the address 0x1FFC0 (64 bytes before the end of the SPI Flash 0x20000). I worked with DA14531MOD, so my initializations are for the P25Q11U Flash which is integrated in the DA14531MOD. Main Changes : On user_periph_setup.h: #define SPI_FLASH_DEFAULT_SIZE (128 * 1024) // SPI Flash memory size in bytes // DevKitPro : 256* 1024 On user_periph_setup.c: // Configuration struct for SPI FLASH P25Q11U (0x20000 chip size) const spi_flash_cfg_t spi_cfg = { .chip_size = SPI_FLASH_DEFAULT_SIZE, }; //On periph_init function #if defined(CFG_PRF_SUOTAR) || defined(CFG_SPI_FLASH_ENABLE) spi_cfg_t spi_flash_cfg = { .spi_ms = SPI_MS_MODE_MASTER, .spi_cp = SPI_CP_MODE_0, .spi_speed = SPI_SPEED_MODE_4MHz, .spi_wsz = SPI_MODE_8BIT, .spi_cs = SPI_CS_0, .cs_pad.port = SPI_EN_GPIO_PORT, .cs_pad.pin = SPI_EN_GPIO_PIN, #if defined (__DA14531__) .spi_capture = SPI_MASTER_EDGE_CAPTURE #endif }; // Configure SPI Flash environment // P25Q11U SPI Flash-DA14531MOD spi_flash_configure_env(&spi_cfg); // Initialize the SPI driver spi_initialize(&spi_flash_cfg); #endif // CFG_PRF_SUOTAR || CFG_SPI_FLASH_ENABLE On user_codeless.c: //Will be stored the Device Name being read from SPI Flash char device_name_after_reset[GAP_MAX_NAME_SIZE]; //Counter to see if we have stored another Device name in the SPI Flash int counter=0; /* Read the Flag_devname from SPI Flash address 0x1FE00 */ void read_flag_from_SPI(void) { //Re-configure P0_0 for SPI Flash GPIO_ConfigurePin(SPI_DO_GPIO_PORT, SPI_DO_GPIO_PIN, OUTPUT, PID_SPI_DO, false); int8_t ret; uint8_t devname_read[GAP_MAX_NAME_SIZE]; //32 bytes, which is the GAP_MAX_NAME_SIZE and the MAX size of the Scan Response Data. uint32_t bytes_read=0x20; /* Wake-up SPI Flash */ spi_flash_release_from_power_down(); /*Read the data stored on address 0x1FFC0 */ ret = spi_flash_read_data((uint8_t *) &devname_read,0x1FFC0 , sizeof(devname_read), &bytes_read); arch_printf(" Read Status for 0x1FE00: %d ", ret); /* Print the data if the Read Status is OK Uncomment the arch_printf if you want to Print the Bytes we have read from SPI Flash*/ if(ret == 0) { //arch_printf("Bytes read:"); int len = sizeof(devname_read); //Print all the data we read from SPI Flash while(len != 0) { //arch_printf(" %d |", devname_read[sizeof(devname_read) -len]); //Store the Device name into a new array if(devname_read[sizeof(devname_read) -len] != 0x00) { device_name_after_reset[sizeof(devname_read) -len] = devname_read[sizeof(devname_read) -len]; } //Check if all the data is empty if(devname_read[sizeof(devname_read) -len] == 0xFF) { counter++; } len--; } //If address 0x1FFC0 is empty, then do not change the Device Name Struct and the Scan Response Data if(counter==32) { flag_for_name = true; } else// if address 0x1FFC0 is not empty, then use the stored Device Name { flag_for_name= false; } // arch_printf(" "); } // Reduce power consumption by putting flash into sleep mode spi_flash_power_down(); // Re-enable HW reset input (must be disabled if/when further operation on // external flash are performed) - must set as input first! GPIO_ConfigurePin(SPI_DO_GPIO_PORT, SPI_DO_GPIO_PIN, INPUT_PULLDOWN, PID_GPIO, false); } void user_app_on_init(void) { // Create a static, random, Bluetooth Device Address #if defined(CFG_USE_GENERATED_BLUETOOTH_ADDRESS) user_injected_bd_address = generate_random_bd_addr(); #else user_injected_bd_address = get_bd_addr_from_otp_or_nvds(); #endif default_app_on_init(); // Set intial Bluetooth role #ifdef CODELESS_585 codeless_env.bt_role = GAP_ROLE_NONE; #endif // Set the application state codeless_env.gap_activity = IDLE; codeless_env.adv_intv = user_adv_conf.intv_min; console_env.echo = true; console_env.error_report_flag = true; #ifdef USE_AT_BINARY_MODE codeless_env.binary_mode=false; codeless_env.escape_time1=MSEC_TO_ESC_TIMER1(CODELESS_DEFAULT_ESC_TIME1); //1sec codeless_env.escape_time2=MSEC_TO_ESC_TIMER2(CODELESS_DEFAULT_ESC_TIME2); //1sec codeless_env.escape_chars[0]='+'; codeless_env.escape_chars[1]='+'; codeless_env.escape_chars[2]='+'; codeless_env.escape_chars_command_input=0x2B2B2B; #endif // Set the PIN to 0 (disable security) codeless_env.pin = 0; // Specify the advertise data #ifdef USE_AT_FLOWCONTROL codeless_env.flow_control_enabled=false; #endif #ifdef USE_AT_CONPAR struct connection_configuration_t *p_conf=&codeless_env.conn_conf; p_conf->dle_en=true; p_conf->dle_tx_pkt_len=CFG_MAX_TX_PACKET_LENGTH; p_conf->dle_rx_pkt_len=CFG_MAX_RX_PACKET_LENGTH; p_conf->max_mtu=user_gapm_conf.max_mtu; #endif #ifdef USE_AT_HOSTSLP codeless_env.hst_sleep_mode=HOSTSL_DEFAULT_SLP_MODE; codeless_env.hst_sleep_wakeup_byte=HOSTSL_DEFAULT_WKUP_BYTE; codeless_env.hst_sleep_wakeup_retry_interval=HOSTSL_DEFAULT_WKUP_INTERVAL; codeless_env.hst_sleep_wakeup_retry_times=HOSTSL_DEFAULT_WKUP_TRIES; #endif //Read the address 0x1FFC0 on SPI Flash to see if we have stored a different Device Name read_flag_from_SPI(); //Print True if we have not a New device Name, Print False if we had stored a new Device Name arch_printf("We did NOT store a new Device Name: %s",flag_for_name?"true":"false"); if(!flag_for_name) //if we had stored a New Device name, print it { arch_printf(" %s", device_name_after_reset); } if(flag_for_name) //Default Operation, we have not stored any alternative Device Name in the SPI Flash { #ifdef USE_AT_BINARY_MODE const uint8_t advertisement_data[] = #else uint8_t advertisement_data[] = #endif { // Complete list of 128bit service UUIDs #ifdef USE_AT_BINARY_MODE 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, SPS_SERV_ADV_UUID_REV_BYTES, #else 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #endif 3, GAP_AD_TYPE_MORE_16_BIT_UUID, 0xF5, 0xFE, //SUOTA Service // Bluetooth Device Name 5, GAP_AD_TYPE_SHORTENED_NAME, USER_DEVICE_NAME[0], USER_DEVICE_NAME[1], USER_DEVICE_NAME[2], USER_DEVICE_NAME[3] }; #ifndef USE_AT_BINARY_MODE for (uint8_t i = 0; i < 16; i++) { advertisement_data[2 + i] = codeless_const_env.adv_service_uuid[i]; } #endif //Save the advertisemnt_data into the codeless_env struct memcpy(&codeless_env.adv_data, &advertisement_data, sizeof(advertisement_data)); //Save the Advertisment data length into the codeless_env struct codeless_env.adv_data_len = sizeof(advertisement_data); // Set scan response data where the full CodeLess name is shown codeless_env.resp_data[0] = USER_DEVICE_NAME_LEN + 1; codeless_env.resp_data[1] = GAP_AD_TYPE_COMPLETE_NAME; memcpy(&codeless_env.resp_data[2], USER_DEVICE_NAME, USER_DEVICE_NAME_LEN); codeless_env.resp_data_len = USER_DEVICE_NAME_LEN + 2; } else if(!flag_for_name) //if we have stored a different Device Name, then use this device name on the Scan Response Data { //Set the Advertising Data as specifiec in user_app_init custom callback function #ifdef USE_AT_BINARY_MODE const uint8_t advertisement_data[] = #else uint8_t advertisement_data[] = #endif { // Complete list of 128bit service UUIDs #ifdef USE_AT_BINARY_MODE 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, SPS_SERV_ADV_UUID_REV_BYTES, #else 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #endif 3, GAP_AD_TYPE_MORE_16_BIT_UUID, 0xF5, 0xFE, //SUOTA Service // Bluetooth Device Name 5, GAP_AD_TYPE_SHORTENED_NAME, device_name_after_reset[0], device_name_after_reset[1], device_name_after_reset[2], device_name_after_reset[3] }; #ifndef USE_AT_BINARY_MODE for (uint8_t i = 0; i < 16; i++) { advertisement_data[2 + i] = codeless_const_env.adv_service_uuid[i]; } #endif //Save the advertisemnt_data into the codeless_env struct memcpy(&codeless_env.adv_data, &advertisement_data, sizeof(advertisement_data)); //Save the Advertisment data length into the codeless_env struct codeless_env.adv_data_len = sizeof(advertisement_data); //Empty array char zeroed[GAP_MAX_NAME_SIZE] = "0"; //Empty the device_info struct memcpy(device_info.dev_name.name, &zeroed, GAP_MAX_NAME_SIZE); device_info.dev_name.length = strlen(device_name_after_reset); //Save the New device name into the device_info struct memcpy(device_info.dev_name.name, device_name_after_reset, device_info.dev_name.length); /* Set the Device Name to the codeless_env struct */ memcpy(&codeless_env.resp_data, &device_info.dev_name.name, device_info.dev_name.length); codeless_env.resp_data_len = strlen(device_name_after_reset); } // set codeless to connectable. codeless_env.is_connectable = true; // Initialize input command index to zero. console_env.input_cmd_char_index = 0; // Initialize parser flag console_env.parser_flag = CHAR_PARSER_NOT_ACTIVE; #if defined(USE_AT_BND) #if (BLE_APP_SEC) // The bdb should be initialized once if the bonding commands are // included. The security should be enabled as well otherwise the // bond commands do not make sense. default_app_bdb_init(); #else #warning "Bonding commands are included but security is disabled;No bonding commands will be available" #endif #endif #if defined(USE_AT_HNDL) // The hdb should be initialized once if the handler commands are // included app_hdb_init(); #endif #if defined(USE_AT_CONPAR) || defined(USE_AT_MAXMTU) || defined(USE_AT_DLEEN) app_cpdb_init(); app_load_cpdb_conf_from_flash(&codeless_env.conn_conf); #endif #if defined (USE_AT_EVENT) // The events database should be initialized once if the event command // is included app_evdb_init(); #endif } On user_codeless.c for user_advertise function: void user_advertise(void) { if(flag_for_name)// Default Operation, We have no Device Name stored in the SPI Flash (0x1FFC0) { struct gapm_start_advertise_cmd* cmd; if (codeless_env.is_connectable) { cmd = app_easy_gap_undirected_advertise_get_active(); } else { cmd = app_easy_gap_non_connectable_advertise_get_active(); } // Specify the advertise data cmd->info.host.adv_data_len = codeless_env.adv_data_len; memcpy(&cmd->info.host.adv_data, &codeless_env.adv_data, codeless_env.adv_data_len); // Specify scan response data (if any) if (codeless_env.resp_data_len > 0 && codeless_env.is_connectable) { cmd->info.host.scan_rsp_data_len = codeless_env.resp_data_len; memcpy(&cmd->info.host.scan_rsp_data, &codeless_env.resp_data, codeless_env.resp_data_len); } else { cmd->info.host.scan_rsp_data_len = 0; } // Set advertising interval cmd->intv_min = codeless_env.adv_intv; cmd->intv_max = codeless_env.adv_intv; // Set the advertise mode if (codeless_env.is_connectable) { cmd->info.host.mode = GAP_GEN_DISCOVERABLE; } else { cmd->info.host.mode = GAP_BROADCASTER_MODE; } if (codeless_env.is_connectable) { app_easy_gap_undirected_advertise_start(); } else { app_easy_gap_non_connectable_advertise_start(); } // Retain the current activity state codeless_env.gap_activity = ADVERTISING; } else if(!flag_for_name) // If we have stored a new Device Name { struct gapm_start_advertise_cmd* cmd; if (codeless_env.is_connectable) { cmd = app_easy_gap_undirected_advertise_get_active(); } else { cmd = app_easy_gap_non_connectable_advertise_get_active(); } // Update the Advertising data cmd->info.host.adv_data_len = codeless_env.adv_data_len; memcpy(cmd->info.host.adv_data, codeless_env.adv_data, codeless_env.adv_data_len); /* Set the Device Name to Scan response data and show it */ append_device_name(&cmd->info.host.scan_rsp_data_len, codeless_env.resp_data_len, &(cmd->info.host.scan_rsp_data[cmd->info.host.scan_rsp_data_len]), codeless_env.resp_data); // Set advertising interval cmd->intv_min = codeless_env.adv_intv; cmd->intv_max = codeless_env.adv_intv; // Set the advertise mode if (codeless_env.is_connectable) { cmd->info.host.mode = GAP_GEN_DISCOVERABLE; } else { cmd->info.host.mode = GAP_BROADCASTER_MODE; } //Start Advertising if (codeless_env.is_connectable) { app_easy_gap_undirected_advertise_start(); } else { app_easy_gap_non_connectable_advertise_start(); } // Retain the current activity state codeless_env.gap_activity = ADVERTISING; } } On user_at_commands.c: // Custom AT command to change the Device Name #ifdef USE_AT_DEVNAME void save_flag_on_SPI(void) { //Re-configure P0_0 for SPI Flash GPIO_ConfigurePin(SPI_DO_GPIO_PORT, SPI_DO_GPIO_PIN, OUTPUT, PID_SPI_DO, false); int8_t ret; /* Wake-up SPI Flash */ spi_flash_release_from_power_down(); // 32 bytes- Size of Scan Response Data and Max Device Name Length uint32_t pc_bytes_written= 0x20; /* Erase data on address 0x1FFC0 We must always first Erase and then Write on an Address */ ret = spi_flash_page_erase(0x1FFC0); //, SPI_FLASH_OP_BE32 if(ret == 0) //If erase was successful { arch_printf(" P25Q11U Flash sector 0x1FE00 has been erased "); } /* Write data on address 0x1FFC0*/ ret = spi_flash_write_data((uint8_t *) &new_device_name, 0x1FFC0, sizeof(new_device_name), &pc_bytes_written); arch_printf(" Write Status for 0x1FFC0: %d", ret); /* Print the written data if the Write Status does not return any Error */ // if(ret == 0) // { // arch_printf(" Written Success "); // } // Reduce power consumption by putting flash into sleep mode spi_flash_power_down(); // Re-enable HW reset input (must be disabled if/when further operation on // external flash are performed) - must set as input first! GPIO_ConfigurePin(SPI_DO_GPIO_PORT, SPI_DO_GPIO_PIN, INPUT_PULLDOWN, PID_GPIO, false); } void user_at_devname(struct at_cmd_params_t* arg, char* reply_string) { char zeroed[GAP_MAX_NAME_SIZE] = "0"; //Empty the new_device_name array memcpy(new_device_name, &zeroed, GAP_MAX_NAME_SIZE); //If AT+DEVNAME if( arg->arg_count ==0) { //We only printed out the name, so keep flag_devname = false; flag_devname = false; //Print the existing Device Name arch_sprintf(reply_string, "%s", device_info.dev_name.name); arg->success_flag = true; } else //else if AT+DEVNAME= { //We will change the Device Name (short and long) so change flag_devname= true flag_devname= true; changed_name = true; //Empty the device_info struct memcpy(device_info.dev_name.name, &zeroed, GAP_MAX_NAME_SIZE); //Save the New device name into the new_device_name variable memcpy(&new_device_name, &arg->cmd_buffer[arg->arg_index[0]], GAP_MAX_NAME_SIZE); device_info.dev_name.length = (strlen(new_device_name) <= GAP_MAX_NAME_SIZE) ?strlen(new_device_name) : GAP_MAX_NAME_SIZE; //Save the New device name into the device_info struct memcpy(device_info.dev_name.name, new_device_name, device_info.dev_name.length); /* Set the Device Name to the codeless_env struct */ memcpy(&codeless_env.resp_data, &device_info.dev_name.name, device_info.dev_name.length); codeless_env.resp_data_len = strlen(new_device_name); // Instantiate the advertising update message to be sent struct gapm_update_advertise_data_cmd *cmd = KE_MSG_ALLOC(GAPM_UPDATE_ADVERTISE_DATA_CMD, TASK_GAPM, TASK_APP, gapm_update_advertise_data_cmd); cmd->operation = GAPM_UPDATE_ADVERTISE_DATA; //Set the Advertising Data as specifiec in user_app_init custom callback function #ifdef USE_AT_BINARY_MODE const uint8_t advertisement_data[] = #else uint8_t advertisement_data[] = #endif { // Complete list of 128bit service UUIDs #ifdef USE_AT_BINARY_MODE 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, SPS_SERV_ADV_UUID_REV_BYTES, #else 17, GAP_AD_TYPE_COMPLETE_LIST_128_BIT_UUID, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, #endif 3, GAP_AD_TYPE_MORE_16_BIT_UUID, 0xF5, 0xFE, //SUOTA Service // Bluetooth Device Name 5, GAP_AD_TYPE_SHORTENED_NAME, new_device_name[0], new_device_name[1], new_device_name[2], new_device_name[3] }; #ifndef USE_AT_BINARY_MODE for (uint8_t i = 0; i < 16; i++) { advertisement_data[2 + i] = codeless_const_env.adv_service_uuid[i]; } #endif //Save the advertisemnt_data into the codeless_env struct memcpy(&codeless_env.adv_data, &advertisement_data, sizeof(advertisement_data)); //Save the Advertisment data length into the codeless_env struct codeless_env.adv_data_len = sizeof(advertisement_data); // Update the Advertising data cmd->adv_data_len = codeless_env.adv_data_len; memcpy(cmd->adv_data, codeless_env.adv_data, codeless_env.adv_data_len); /* Set the Device Name to Scan response data and show it */ append_device_name(&cmd->scan_rsp_data_len, codeless_env.resp_data_len, &(cmd->scan_rsp_data[cmd->scan_rsp_data_len]), codeless_env.resp_data); // Send the message ke_msg_send(cmd); arch_printf("Flag_devname bool : %s",flag_devname?"true":"false"); //Print the New name arch_sprintf(reply_string, "%s", device_info.dev_name.name); arg->success_flag = true; //Save the New Device Name on the SPI Flash save_flag_on_SPI(); } } #endif On my side it works as expected: Please test it in your side and share any feedback. 6.380.16.55_devname_v2.zip Kind Regards, OV_Renesas

OV_Renesas · Answer

Hi There,

Thank you for the reply.
Which AT Commands are you referring to?
All the supported AT commands for the DA14531 can be found here: 9. AT Commands — DA145XX Tutorial SDK Getting started (renesas.com)
I do not think there is any command in order to change the device name. However you can follow the logic shared on my first answer and implement your own custom AT command.

Kind Regards,
OV_Renesas

OV_Renesas · Answer

Hi There,

As you can see the AT+ADVDATA and AT+ADVRESP commands are not available for DA14531:

However, you can define them on the user_at_command.h file and they should work as expected.
The ADVDATA command updates the advertising data and the ADVRESP command updates the scan response data.
In codeless, we have stored the Device Name on the Scan Response Data. So you will have to modify the Scan Response Data accordingly in order to change the name. As you can see on the Codeless User Manual, both these commands will require the advertising to restart in order to take effect.
Also, when you are connected, even if you update the Scan Response data with your New device name, the Device Name will remain the default.
You will have to create your own custom command to update the device name. You will have to store your device name into the device_info struct.

Kind Regards,
OV_Renesas

OV_Renesas · Answer

Hi There, Thank you for the reply. If you are working on Codeless v6.380.16.55 you will need ARM Compiler v6. If you are working on Codeless v6.380.14.22 or any older version you will need ARM Compiler v5. Kind Regards, OV_Renesas

DA14531 Name Change Service/Characteristic

Top Replies