In timer example in sdk 11, I replace the Timer 0 by timer 1 and timer 2 but the LED did not blink. Can you guys please guide me through this? In nrf_drv_config.h I have already replace:
#define TIMER1_ENABLED 0
#define TIMER2_ENABLED 0
by
#define TIMER1_ENABLED 1
#define TIMER1_ENABLED 1
Anh can you please show me how to use 2 timers in one time? For example, TIMER0 incharge of LED1 and TIMER1 incharged of LED2. And they blink at different period of time, say: 500 ms and 700 ms?. I have tried this following code but the LED just turn on but not blink. Thank you for your support.
Here is my code:
#include "nrf.h"
#include "bsp.h"
#include "nrf_drv_timer.h"
#include "bsp.h"
#include "app_error.h"
#define LED1 11
#define LED2 12
const nrf_drv_timer_t TIMER_LED = NRF_DRV_TIMER_INSTANCE(1);
const nrf_drv_timer_t TIMER_LED_1 = NRF_DRV_TIMER_INSTANCE(2);
void led_init(){
nrf_gpio_cfg_output(LED1);
nrf_gpio_cfg_output(LED2);
}
/**
* @brief Handler for timer events.
*/
void timer_led_event_handler(nrf_timer_event_t event_type, void* p_context)
{
switch(event_type)
{
case NRF_TIMER_EVENT_COMPARE0:
LEDS_INVERT(1UL<<LED2);
break;
default:
//Do nothing.
break;
}
}
/**
* @brief Handler for timer events.
*/
void timer_led_event_handler_1(nrf_timer_event_t event_type, void* p_context)
{
switch(event_type)
{
case NRF_TIMER_EVENT_COMPARE1:
LEDS_INVERT(1UL<<LED1);
break;
default:
//Do nothing.
break;
}
}
/**
* @brief Function for main application entry.
*/
int main(void)
{
uint32_t time_ms = 500; //Time(in miliseconds) between consecutive compare events.
uint32_t time_ms_1 = 700;
uint32_t time_ticks, time_ticks_1;
uint32_t err_code = NRF_SUCCESS;
led_init();
//Configure TIMER_LED for generating simple light effect - leds on board will invert his state one after the other.
err_code = nrf_drv_timer_init(&TIMER_LED, NULL, timer_led_event_handler);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_timer_init(&TIMER_LED_1, NULL, timer_led_event_handler_1);
APP_ERROR_CHECK(err_code);
time_ticks = nrf_drv_timer_ms_to_ticks(&TIMER_LED, time_ms);
time_ticks_1 = nrf_drv_timer_ms_to_ticks(&TIMER_LED_1, time_ms_1);
nrf_drv_timer_extended_compare(
&TIMER_LED, NRF_TIMER_CC_CHANNEL0, time_ticks, NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK, true);
nrf_drv_timer_extended_compare(
&TIMER_LED_1, NRF_TIMER_CC_CHANNEL1, time_ticks_1, NRF_TIMER_SHORT_COMPARE1_CLEAR_MASK, true);
nrf_drv_timer_enable(&TIMER_LED);
nrf_drv_timer_enable(&TIMER_LED_1);
while(1)
{
__WFI();
}
}
/** @} */