There are 12 LEDs which are connected using shift register HC595 ,the module used is nrf51822(bluetooth module). I want the LEDs to go off after 3 seconds interval. My code is as follows-
#include "main.h"
#include "uart.h"
#include "nrf_delay.h"
#include "rc522.h"
#include "hc595.h"
#include "tsm12m.h"
#include "iic.h"
#include "app_timer.h"
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define APP_TIMER_OP_QUEUE_SIZE 6
APP_TIMER_DEF(LEDOps);
static void timer_a_handler(void * p_context)
{
lightAllLEDs();
}
static void create_timers()
{
uint32_t err_code;
// Create timers
err_code = app_timer_create(&LEDOps,
APP_TIMER_MODE_SINGLE_SHOT,
timer_a_handler);
APP_ERROR_CHECK(err_code);
}
void timers_init(){
uint32_t err_code;
// Initialize the application timer module.
APP_TIMER_INIT(APP_TIMER_PRESCALER, APP_TIMER_OP_QUEUE_SIZE, false);
create_timers();
}
void timer_a_start(){
uint32_t err_code;
err_code = app_timer_start(LEDOps, APP_TIMER_TICKS(3,APP_TIMER_PRESCALER), NULL);
APP_ERROR_CHECK(err_code);
}
int main(void)
{
uartInit();
TSM12_Init();
HC595_Init();
timers_init();
timer_a_start();
UartSendstring("123456789");
printf("timer stopped!!");
app_timer_stop(LEDOps);
while(1)
{
TSM12_Handle();
nrf_delay_ms(1);
}
}
The above code doesn't seem to work. I am new to this module. Please help by giving a solution.
