UART CLOSED AND OPEN (nrf52832 with sdk12.1.0)

[jenkey.zhu]

we need to open uart 30s and close it 30s.there is our code:

if(sec_cnt==30)
{
	//printf("sec_cnt=30 is now\r\n");//zzq
	nrf_delay_ms(100);
	nrf_drv_uart_uninit(&m_dtm_uart_driver);
}

if(sec_cnt==60)
{
	sec_cnt=0;
	uart_init();
}

but when the sec_cnt==30, the uart is stop,but it cann't start at sec==60, how we need to do?

[jenkey.zhu]

int main(void) { uint32_t err_code; uint32_t rct1_cnt; bool erase_bonds; OLDDATA_SYNC_FLAG=0; gpio_init(); uart_init(); saadc_init();

	timers_init();//zzq
	Int_Timer();	
	//buttons_leds_init(&erase_bonds);
	ble_stack_init();
	gap_params_init();
	services_init();
	advertising_init();
	conn_params_init();
	application_timers_start();
	
	
  printf("\r\nUART Start!\r\n");//zzq
	
	err_code = ble_advertising_start(BLE_ADV_MODE_FAST);
	APP_ERROR_CHECK(err_code);
	// Enter main loop.
	nrf_delay_ms(3000);
	for (;;)
	{
				
					//nrf_delay_ms(10);       //waiting a second		

					if(g_secondcnt_detected ==true)
					{
					g_60seconds_cnt++;
					g_90seconds_cnt++;	
					sec_cnt++;					
					g_secondcnt_detected=false;										
					}

					if(OLDDATA_SYNC_FLAG==1)
					{
					      read_flash_data(&g_bcg_startDate,&g_bcg_stopDate);
					}
					else
					{	
					   					
						if((sec_cnt%2)==0)
						{						
						nrf_gpio_pin_toggle(LED_GREEN);
						nrf_gpio_pin_toggle(LED_RED);
						}
						else if(sec_cnt==30)
						{
						nrf_drv_uart_uninit(&m_dtm_uart_driver);
						}
						else if(sec_cnt==60)
						{
						sec_cnt=0;
						uart_init();
						}

					}

				   send_data();
				 if((OLDDATA_SYNC_FLAG==0)&&(g_90seconds_cnt>10))
					{
					send_heart();	 
        g_90seconds_cnt=0; 
					}
	      //  power_manage();
	}
	

}