ble_app_hrs not working

[Ferhat B]

Hi

Im trying nrf52832 with 0 BMD-350 Evm. Working with IAR, nRF5_SDK_13.0.0_04a0bfd.

I need ble_app_hrs_pca10040_132_uart working properly. Seem like there is a main clock problem. Its hanging while init steps.

I loaded s132_nrf52_3.1.0_softdevice. I loaded heart_rate_demo.hex and its working. blinky_pca10040_s132_nrf52832 working fine.

[Sigurd]

Hi,

The ble_app_hrs_pca10040_s132_uart is for serialized application using UART as the transport interface. Instead you should use the ble_app_hrs_pca10040_s132 project.

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Edit: There is a bug with IAR version 8 with the nrf_delay_us() function. See attached patch in this answer.

[Ferhat B]

I tried both, and its same. Hanging at nrf_delay_us below;

__STATIC_INLINE void nrf_delay_us(uint32_t number_of_us) { const uint32_t clock16MHz = CLOCK_FREQ_16MHz; if (number_of_us) { __ASM volatile ( #if ( defined(GNUC) && (__CORTEX_M == (0x00U) ) ) ".syntax unified\n" #endif "1:\n"

[Sigurd]

If you are using IAR version 8 there is a bug with the nrf_delay_us() function. See updated answer.

[Ferhat B]

That works, thanks.

Now i have another issue;

ble_app_hrs_pca10040_s132 works >>> fine. ble_app_hrs_pca10040_s132_uart >>> hangs.

Here (main): err_code = sd_ble_cfg_set(BLE_COMMON_CFG_VS_UUID, &ble_cfg, ram_start); Here (deeper): m_os_rsp_wait_handler();

With NrfGo i try to load complied outputs (*.hex); I can load ble_app_hrs_pca10040_s132.hex with SoftDevice loaded.

But I cant load ble_app_hrs_pca10040_s132_uart.hex with SoftDevice loaded.

I cant debug if i do not load soft device with IAR. Is it a code size problem ?? NrfGo says "ble_app_hrs_pca10040_s132_uart.hex has sofdevice things in it"

[Sigurd]

As I wrote in my answer, the ble_app_hrs_pca10040_s132_uart is for serialized application using UART as the transport interface. This is only when you want to run your appliation code on another microcontroller. Are you sure that this is what you want to achieve? See this infocenter page.