1 Us delay ! Using nRF connect SDK.

RE: 1 Us delay ! Using nRF connect SDK.

Manas_punjabi — Mon, 29 Aug 2022 11:31:40 GMT

Thank you for your support , it worked.

RE: 1 Us delay ! Using nRF connect SDK.

Håkon Alseth — Mon, 29 Aug 2022 10:16:22 GMT

Hi,

For sleep intervals in such low microsecond range, you must use the k_busy_wait() function:

https://docs.zephyrproject.org/3.0.0/reference/kernel/threads/index.html#c.k_busy_wait

This will be a blocking function, meaning the delay is based on cpu cycles instead of a timer.

Could you try this and see if it works better for your use-case?

Kind regards,

Håkon

RE: 1 Us delay ! Using nRF connect SDK.

Manas_punjabi — Mon, 29 Aug 2022 09:26:35 GMT

#include <zephyr.h>
#include <device.h>
#include <devicetree.h>
#include <drivers/gpio.h>
#include <sys/util.h>
#include <sys/printk.h>
#include <hal/nrf_gpio.h>
#include <zephyr/kernel.h>


#define Data 02

K_TIMER_DEFINE(my_timer, NULL, NULL);

int main(void)
{
    /* Configure board. */
 nrf_gpio_cfg_output(Data);

	  while (1)
	 {
	 		nrf_gpio_pin_set(Data);
			k_timer_start(&my_timer, K_USEC(1),K_NO_WAIT);
			nrf_gpio_pin_clear(Data);
			k_timer_start(&my_timer, K_USEC(1),K_NO_WAIT);
	  }
}