blinking a led using programmer

[acha]

Hello, I use a SparkFun programmer to flash a nRF52832, once I flash my board (with the program below), I type in my terminal : "JLinkExe -device nRF52 -speed 4000 -if SWD".

I use SDK v12.1.0, my toolchain is gcc 4_9_3.

#include <stdbool.h>
#include <stdint.h>
#include "nrf_delay.h"
#include "bsp.h"
#include "nrf.h"
#include "system_nrf52.h"
#include "nrf_delay.h"

#define ENABLE_SWD 1

static const uint8_t leds_list[LEDS_NUMBER] = { 9, 7, LED_3, LED_4 };

int main(void)
{
    /* Configure LED-pins as outputs. */
    LEDS_CONFIGURE(LEDS_MASK);
    while (true)
    {
        for (int i = 0; i < LEDS_NUMBER; i++)
        {
            LEDS_INVERT(1 << leds_list[i]);
            nrf_delay_ms(500);
        }
    }
}
/**
 *@}
 **/

Can someone understand why the LED didn't blink in the SparkFun programmer?

[acha]

An important point, I add theises definition in the makefile : CFLAGS += -DENABLE_DEBUG_LOG_SUPPORT

CFLAGS += -DNRF_LOG_USES_RTT=1

CFLAGS += -DENABLE_SWO

[Daniel Wang]

What is a "SparkFun programmer"?

What example in the SDK is this?

[acha]

it's a SoC that combines an ARM Cortex-M4F microprocessor, it provides access to all of the chip’s I/O pins. I use the blinky example of the sdk, and I set the led pin to the pin 7 (which corresponds to the LED in the sparkFun board.

[bjorn-spockeli]

Can you provide a link to the programmer or any documentation on it? Are you working with a custom nRf52832 board, a nRF52 Module or our nRF52 DK?

[acha]

I use a custom nRF52832 board, and I use the pca10040 debugger of this board to program the µcontroller in the Sparkfun, there a useful link: learn.sparkfun.com/.../nrf52832-breakout-board-hookup-guide