附上一段使用KLite的演示代码。
/*
* KLite DEMO
* STM32F407,XTAL=16MHz
*/
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "kernel.h"
#include "board.h"
#include "nvic.h"
#include "uart.h"
#define MAX_DEBUG_LEN 1024
static kmutex_t debug_mutex;
static char* debug_buff;
void debug(const char* fmt, ...)
{
va_list va;
kmutex_lock(debug_mutex);
va_start(va,fmt);
vsnprintf(debug_buff,MAX_DEBUG_LEN,fmt,va);
va_end(va);
uart_write(1,debug_buff,strlen(debug_buff));
kmutex_unlock(debug_mutex);
}
void debug_init(void)
{
debug_buff = malloc(MAX_DEBUG_LEN);
debug_mutex = kmutex_create();
uart_init(1,1024);
uart_open(1,115200,0);
}
void demo_main(void* arg)
{
debug("demo thread start.\r\n");
debug("thread pid=%p, arg=%p\r\n",kthread_self(),arg);
while(1)
{
sleep(2000);
debug("thread<%p> running.kernel time=%d\r\n",kthread_self(),kernel_time());
}
}
void demo_init(void)
{
uint32_t ver;
uint32_t total;
uint32_t used;
ver = kernel_version();
debug("\r\nklite version:%d.%d.%d\r\n",(ver>>24)&0xFF,(ver>>16)&0xFF,ver&0xFFFF);
kthread_create(demo_main,0,0);
kthread_create(demo_main,0,0);
kmem_info(&total,&used);
debug("memory usage: %d/%d byte\r\n",used,total);
}
void init(void* arg)
{
board_init();
nvic_init();
debug_init();
demo_init();
debug("init thread exit!\r\n");
}
int main(void)
{
kernel_init(0x10000000,0x10000);
kthread_create(init,0,0);
kernel_start();
}
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