How to turn on 4 LEDs in BLE at nrf52832?

[alex kim]

Hi, Everyone
How to turn on 4 LEDs in BLE ?
I am testing ble_app_uart on nrf52832 (softdevice s132).
Try to blink the four LEDs on the board do.
I have added to main()
bsp_board_led_invert (BSP_BOARD_LED_2);
bsp_board_led_invert (BSP_BOARD_LED_3);
LED 2 and 3 don't turn on

Can somebody guide me what could be the problem?

[rraa]

Because "Blinky" examples different work. when connect board LED 2 is turn on. But you want to turn on LED 2 and LED 3. You must  change some code block. 

bsp_board_led_invert (BSP_BOARD_LED_2);
bsp_board_led_invert (BSP_BOARD_LED_3); 

code lines it is not enough. 

[alex kim]

Thank you for your quick response.

Fullscreen main_ft.c Download

int main(void)
{
    uint32_t err_code;
//	bool     erase_bonds;

    // Initialize.
    err_code = app_timer_init();
    APP_ERROR_CHECK(err_code);

    uart_init();
    log_init();

#if 0
//180227
	buttons_leds_init(&erase_bonds);
#else
	bsp_board_leds_init();
#endif
    ble_stack_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

//180223 SPI-S
    APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
    NRF_LOG_DEFAULT_BACKENDS_INIT();
    
    NRF_LOG_INFO("SPI example.");

    nrf_drv_spi_config_t spi_config = NRF_DRV_SPI_DEFAULT_CONFIG;
    spi_config.ss_pin   = SPI_SS_PIN;
    spi_config.miso_pin = SPI_MISO_PIN;
    spi_config.mosi_pin = SPI_MOSI_PIN;
    spi_config.sck_pin  = SPI_SCK_PIN;
    APP_ERROR_CHECK(nrf_drv_spi_init(&spi, &spi_config, spi_event_handler, NULL));
//180223 SPI-E
	
    printf("\r\nUART Start!\r\n");
    NRF_LOG_INFO("UART Start!");
    err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
    APP_ERROR_CHECK(err_code);

    while (1)
    {
        // Reset rx buffer and transfer done flag
        memset(m_rx_buf, 0, m_length);
        spi_xfer_done = false;

        APP_ERROR_CHECK(nrf_drv_spi_transfer(&spi, m_tx_buf, m_length, m_rx_buf, m_length));

		nrf_delay_ms(200);

        while (!spi_xfer_done)
        {
            __WFE();
        }

        NRF_LOG_FLUSH();

		bsp_board_led_invert(BSP_BOARD_LED_0);
		bsp_board_led_invert(BSP_BOARD_LED_1);
		bsp_board_led_invert(BSP_BOARD_LED_2);		
        bsp_board_led_invert(BSP_BOARD_LED_3);		
        nrf_delay_ms(200);
    }
//180223 SPI-E	

#if 0
    // Enter main loop.
    for (;;)
    {
        UNUSED_RETURN_VALUE(NRF_LOG_PROCESS());
    printf("\r\nUART Start!\r\n");
    NRF_LOG_INFO("UART Start!");		
        power_manage();
    }
#endif	
}

[Jørgen Holmefjord]

What is the LEDS_NUMBER symbol set to in your board header file? Which SDK version are you using? Are you testing this on a nRF52-DK or some custom board? If custom board, which GPIO are the LEDs connected to?

[alex kim]

SDK version is nRF5_SDK_14.2.0_17b948a

Board is PCA10040(nRF52830) no custom board

SoftDevice is s132

#define LEDS_NUMBER 4

I tried the test by adding only the following sentence to main () in "examples\ble_peripheral\ble_app_uart".

bsp_board_led_invert(BSP_BOARD_LED_0);

bsp_board_led_invert(BSP_BOARD_LED_1);
bsp_board_led_invert(BSP_BOARD_LED_2);
bsp_board_led_invert(BSP_BOARD_LED_3);

The result is that only LED0 and LED1 blink

LED2 and LED3 no action

[Jørgen Holmefjord]

Could you try configuring and toggling the LEDs manually using the GPIO abstraction functions, to check if there are some issues in the code or with the board?

#include "nrf_gpio.h"

#define BOARD_LED_3 19
#define BOARD_LED_4 20

nrf_gpio_cfg_output(BOARD_LED_3);
nrf_gpio_cfg_output(BOARD_LED_4);
nrf_gpio_pin_set(BOARD_LED_3);
nrf_gpio_pin_set(BOARD_LED_4);

while(1)
{
    nrf_delay_ms(1000);
    nrf_gpio_pin_toggle(BOARD_LED_3);
    nrf_gpio_pin_toggle(BOARD_LED_4);
}

[alex kim]

Thank you for your kind and quick reply. I have a mistake in pin assignment. LED3 and 4 are well controlled.