Cannot use port 1 on nRF52833

Question

Hi engineers, 
 I want to use the pin P1.09(NRF_GPIO_PIN_MAP(1, 9)) as GPIO, but when I initiate it, it seems fail. 
 I've looked through the relevant issues here, but got nothing. 
 Cheers, 
 Sean

Charlie · Accepted Answer

Hi Sean, Are you using a custom board or nRF52833DK? I only have an nRF52840DK on hand, but shouldn't have differences in using GPIO. I will get one nRF52833DK tomorrow, before this I want you to test on a common ground. Can you test with the following main.c modified from nRF5_SDK_17.0.2_d674dde\examples\peripheral\blinky? You will see LED1 blink and P1.09 toggle every 2 seconds. My nRF52840DK works as expected. #include #include #include "nrf_delay.h" #include "boards.h" /** * @brief Function for application main entry. */ int main(void) { /* Configure board. */ //bsp_board_init(BSP_INIT_LEDS); nrf_gpio_cfg_output(NRF_GPIO_PIN_MAP(0,13)); nrf_gpio_cfg_output(NRF_GPIO_PIN_MAP(1,9)); /* Toggle LEDs. */ while (true) { for (int i = 0; i < LEDS_NUMBER; i++) { //bsp_board_led_invert(i); nrf_gpio_pin_toggle(NRF_GPIO_PIN_MAP(0,13)); nrf_gpio_pin_toggle(NRF_GPIO_PIN_MAP(1,9)); nrf_delay_ms(2000); } } } /** *@} **/

Cannot use port 1 on nRF52833

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