add new LED key systick sample code

guowenxue

2018-05-16 a22d9c106276bb1819e583012d7ea41b6529b318

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/**************************************************************************** 
*   Copyright: (C)2014 Î人ÁèÔÆǶÈëʽʵÑéÊÒ www.emblinux.com 
*      Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292 
* Description: ·Ü¶·STM32v5¿ª·¢°åcontiki²Ù×÷ϵͳÈë¿Ú³ÌÐò 
*  
*   ChangeLog: 
*        °æ±¾ºÅ     ÈÕÆÚ       ×÷Õß      ËµÃ÷ 
*        V1.0.0  2014.08.25  GuoWenxue   ·¢²¼¸Ã°æ±¾ 
****************************************************************************/ 
 
#include"stm32f10x.h" 
#include "stm32v5_led.h" 
#include "debug-uart.h" 
#include "contiki.h" 
#include <stdio.h> 
 
PROCESS(led_blink_process, "LED blink process"); 
AUTOSTART_PROCESSES(&led_blink_process); 
 
PROCESS_THREAD(led_blink_process, ev, data) 
{ 
  PROCESS_BEGIN(); 
 
    while(1)   
    { 
            static struct etimer et; 
             
            etimer_set(&et, CLOCK_SECOND); 
            PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));     
            printf("Turn LED1 on\n");             
            turn_led(LED1, ON); 
             
            etimer_set(&et, CLOCK_SECOND); 
            PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et)); 
            printf("Turn LED1 off\n");     
            turn_led(LED1, OFF);                 
    } 
 
  PROCESS_END(); 
} 
 
int main(void) 
{ 
    init_led_gpio();     
    dbg_setup_uart(); 
    clock_init(); 
 
  process_init(); 
  process_start(&etimer_process, NULL); 
  autostart_start(autostart_processes); 
    printf("Processes running\n"); 
 
    while(1)  
    { 
       do {  } while(process_run() > 0);  /* Let process running */ 
         /*Comes here means CPU is Idel*/ 
    } 
     
    return 0; 
}