FreeRTOS with DFU service

[Steven]

In SDK_v11.0.0-2.alpha, there is a project: examples\ble_peripheral\ble_app_hrs_freertos\pca10028\ble_app_hrs_freertos\s130_with_dfu_pca10028.

But I can't find DFU service in it, Where I can find the FreeRTOS with DFU service Demo?

[bjorn-spockeli]

The DFU service is added in ble_dfu.c, found under the nRF_BLE group in the Project Window in Keil.

[Steven]

I read the main.c code, there are nothing about dfu service. I also download the code (nRF5_SDK_11.0.0-2.alpha_bc3f6a0\examples\ble_peripheral\ble_app_hrs_freertos\pca10028\s130_with_dfu\arm5_no_packs\ble_app_hrs_freertos_s130_with_dfu_pca10028.uvprojx) to the pca10028 board, and use Master Control Panel to discover the service, there also no dfu service.

[bjorn-spockeli]

The DFU support is missing from that particular example and I have reported this internally. This hould be fixed in the next release.

Meanwhile, you can attempt to add the DFU support using this guide. I would also suggest using the S130_with_dfu example as a reference when adding the DFU support.

[Steven]

I had add the DFU service to the ble_app_hrs_freertos_s130_with_dfu_pca10028 project, and the Master Control Panel could find the DFU service, But when DFU start transfer, the nRF51822 would crash! I trace the bug, after the function "bootloader_util_reset(uint32_t start_addr)" (the end of the dfu service ), the code would jump to 0x3C440(part of the bootloader), and then the nRF51822 crash. I don't know what is wrong, Any suggestion?

[bjorn-spockeli]

@steven-lu: You have to edit the bootloader_util_reset -function, see the code snippet below:

#if defined ( __CC_ARM )
__asm static void bootloader_util_reset(uint32_t start_addr)
{
 
#if defined ( FREERTOS )
    MOVS R1, #1
    MSR CONTROL, R1             ; Switch to MSP
#endif //FREERTOS 
    dfu_app_peer_data_set(conn_handle);
 
    NVIC_ClearPendingIRQ(SWI2_IRQn);
    interrupts_disable();
    memset(NRF_RTC1,0,sizeof(NRF_RTC_Type));
    bootloader_util_app_start(NRF_UICR->BOOTLOADERADDR);