echo_uart.c

ARM9.rar

#include "def.h"
#include "utils.h"
#include "board.h"

static int EchoConsoleChar(U32 a1, U32 a2, U32 a3 ,U32 a4)
{
	char ch[1024];
	U32 i;
	
	printf("Now test get char from uart and echo this char to uart\n");
	while(1) 
	{
		ch[i] = SerialRxChar();
		if( ch[i]== ESC_KEY )
			return 0;

		if( ch[i] == ENTER_KEY ) 
		{
			ch[i+1] = 0;
			puts(ch);
			i = 0;
		}
		else
			i += (i<1023)?1:0;
	}
}

static char title[] = "串口回显实验";
static char tip[]   = "回显从串口读入的字符,输入字符(串)后回车键即可显示,按ESC键退出";

//EchoUartCharItem在prog_entry.c里被引用
TEST_PROGRAM_ITEM EchoUartCharItem = {
				EchoConsoleChar, 	//入口地址
				title, 				//显示名称
				tip, 				//帮助或提示信息,可为NULL
				1};					//使用printf,puts,putch等函数时在LCD上也显示输出字符(串)