Tutorial on setting up the bootloader for nrf52832 in IAR

[Alex_Golubev]

Hi.

 

I' m using nRF52832, SDK v15.0.0, S132.

 

I'm want tutorial how make bootloader DFU in IAR.

 

How I make bootloader DFU for nrf52832 in IAR?

[bjorn-spockeli]

You can use nRF Connect for Desktop or nrfutil on a PC to perform DFU. We also have the nRF Connect for Mobile app for Android and iOS, which allows you to perform DFU from a mobile device.

[Alex_Golubev]

Me's need step by step guide, getting started with Nordic's Secure DFU bootloader. 

[bjorn-spockeli]

Just use the second one, i.e. advertising_start(bool erase_bonds), with erase_bonds = false. 

[Alex_Golubev]

I solved the compilation problems. I changed the function "services_init(void)" of project ble_app_uart in:

static void services_init(void)
{
    uint32_t           err_code;
    ble_nus_init_t     nus_init;
    nrf_ble_qwr_init_t qwr_init = {0};
    ble_dfu_buttonless_init_t dfus_init = {0};

    // Initialize Queued Write Module.
    qwr_init.error_handler = nrf_qwr_error_handler;

    err_code = nrf_ble_qwr_init(&m_qwr, &qwr_init);
    APP_ERROR_CHECK(err_code);

    // Initialize NUS.
    memset(&nus_init, 0, sizeof(nus_init));

    nus_init.data_handler = nus_data_handler;

    err_code = ble_nus_init(&m_nus, &nus_init);
    APP_ERROR_CHECK(err_code);
    
    //***** buttonless DFU *****

    // Initialize the async SVCI interface to bootloader.
    err_code = ble_dfu_buttonless_async_svci_init();
    APP_ERROR_CHECK(err_code);

    dfus_init.evt_handler = ble_dfu_evt_handler;

    err_code = ble_dfu_buttonless_init(&dfus_init);
    APP_ERROR_CHECK(err_code);

   //**************************
}

and add peer_manager_init

int main(void)
{
    bool erase_bonds;
    
  //  static uint32_t pages_to_erase = 1;
    
    // Initialize.
    log_init();
    timers_init();
    buttons_leds_init(&erase_bonds);
    power_management_init();
    ble_stack_init();
    peer_manager_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

    // Start execution.
    
    advertising_start(erase_bonds);

I want start buttonless DFU with command. I get command through ble uart.  How do I may it make?

[bjorn-spockeli]

You call the following function

uint32_t ble_dfu_buttonless_bootloader_start_finalize(void)
{
    uint32_t err_code;

    NRF_LOG_DEBUG("In ble_dfu_buttonless_bootloader_start_finalize\r\n");

    err_code = sd_power_gpregret_clr(0, 0xffffffff);
    VERIFY_SUCCESS(err_code);

    err_code = sd_power_gpregret_set(0, BOOTLOADER_DFU_START);
    VERIFY_SUCCESS(err_code);

    // Indicate that the Secure DFU bootloader will be entered
    m_dfu.evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER);

    // Signal that DFU mode is to be enter to the power management module
    nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_DFU);

    return NRF_SUCCESS;
}

its defined in ble_dfu.c and its called in so just include ble_dfu.h in the file, I assume main.c, and then call ble_dfu_buttonless_bootloader_start_finalize when you want to jump to the bootloader. 

[Alex_Golubev]

I got an error again.

What do I do wrong?

bootloader uploaded

[bjorn-spockeli]

Which error code is returned by ble_dfu_buttonless_init()? Can you step into ble_dfu_buttonless_init and see which internal function that returns the error code?

[Alex_Golubev]

Returns the error code function err_code = sd_ble_uuid_vs_add(&nordic_base_uuid, &m_dfu.uuid_type); 

    err_code = sd_ble_uuid_vs_add(&nordic_base_uuid, &m_dfu.uuid_type);
    VERIFY_SUCCESS(err_code);

[bjorn-spockeli]

0x04 means NRF_ERROR_NOMEM, which is generate by sd_ble_uuid_vs_add when there are no more free slots for VS UUIDs, 

You need to increase NRF_SDH_BLE_VS_UUID_COUNT in sdk_config.h to 1. 

* @param[in] p_vs_uuid Pointer to a 16-octet (128-bit) little endian Vendor Specific base UUID disregarding
* bytes 12 and 13.
* @param[out] p_uuid_type Pointer to a uint8_t where the type field in @ref ble_uuid_t corresponding to this UUID will be stored.
*
* @retval ::NRF_SUCCESS Successfully added the Vendor Specific base UUID.
* @retval ::NRF_ERROR_INVALID_ADDR If p_vs_uuid or p_uuid_type is NULL or invalid.
* @retval ::NRF_ERROR_NO_MEM If there are no more free slots for VS UUIDs.
*/
SVCALL(SD_BLE_UUID_VS_ADD, uint32_t, sd_ble_uuid_vs_add(ble_uuid128_t const *p_vs_uuid, uint8_t *p_uuid_type));

[Alex_Golubev]

I get error in function static void ble_stack_init(void).

I changed NRF_SDH_BLE_VS_UUID_COUNT with 1 in 2, but now in function:

ret_code_t nrf_sdh_ble_enable(uint32_t * const p_app_ram_start)
{
    // Start of RAM, obtained from linker symbol.
    uint32_t const app_ram_start_link = *p_app_ram_start;

    ret_code_t ret_code = sd_ble_enable(p_app_ram_start);
    if (*p_app_ram_start > app_ram_start_link)
    {
        NRF_LOG_WARNING("Insufficient RAM allocated for the SoftDevice.");

        NRF_LOG_WARNING("Change the RAM start location from 0x%x to 0x%x.",
                        app_ram_start_link, *p_app_ram_start);
        NRF_LOG_WARNING("Maximum RAM size for application is 0x%x.",
                        ram_end_address_get() - (*p_app_ram_start));
    }
    else
    {
        NRF_LOG_DEBUG("RAM starts at 0x%x", app_ram_start_link);
        if (*p_app_ram_start != app_ram_start_link)
        {
            NRF_LOG_DEBUG("RAM start location can be adjusted to 0x%x.", *p_app_ram_start);

            NRF_LOG_DEBUG("RAM size for application can be adjusted to 0x%x.",
                          ram_end_address_get() - (*p_app_ram_start));
        }
    }

    if (ret_code == NRF_SUCCESS)
    {
        m_stack_is_enabled = true;
    }
    else
    {
        NRF_LOG_ERROR("sd_ble_enable() returned %s.", nrf_strerror_get(ret_code));
    }

    return ret_code;
}

the the execution the execution enters in the block

NRF_LOG_WARNING("Insufficient RAM allocated for the SoftDevice.");

NRF_LOG_WARNING("Change the RAM start location from 0x%x to 0x%x.",
app_ram_start_link, *p_app_ram_start);
NRF_LOG_WARNING("Maximum RAM size for application is 0x%x.",
ram_end_address_get() - (*p_app_ram_start));

Thank you for your support.

[Alex_Golubev]

I modify RAM start and RAM STOP in IAR.

after started project.

How do start work DFU? I use function ble_dfu_buttonless_bootloader_start_finalize(); but she not started DFU. 

Error on line nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_DFU); in function

uint32_t ble_dfu_buttonless_bootloader_start_finalize(void)
{
    uint32_t err_code;

    NRF_LOG_DEBUG("In ble_dfu_buttonless_bootloader_start_finalize\r\n");

    err_code = sd_power_gpregret_clr(0, 0xffffffff);
    VERIFY_SUCCESS(err_code);

    err_code = sd_power_gpregret_set(0, BOOTLOADER_DFU_START);
    VERIFY_SUCCESS(err_code);

    // Indicate that the Secure DFU bootloader will be entered
    m_dfu.evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER);

    // Signal that DFU mode is to be enter to the power management module
    nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_DFU);

    return NRF_SUCCESS;
}

I don't know that do. Help me.

[bjorn-spockeli]

Alex, when you report that functions return errors, then you need to provide the error codes so that we can find out what caused the error. Also do you mean a compilation error or a run-time error?

After calling the ble_dfu_buttonless_bootloader_start_finalize() function the device should jump to the bootloader and the device should start advertising as DfuTarg. You can then connect to the device using nRF Connect for Desktop or Mobile(ios/Android) and then start a DFU by pressing the DFU icon, the blue lock and then select the image you want to upload