#include "common.h"
#include "rtc.h"
#include "uart.h"
#include "uart_app.h"
#include "sysinit.h"
#define SEND_BUF_LEN 1
#define RECEIVE_BUF_LEN 1
uint8_t send_buf[SEND_BUF_LEN] = {'L'};
uint8_t receive_buf[RECEIVE_BUF_LEN] = {0};
/******************************************************************************/
int main (void)
{
UART_ConfigType sConfig;
/*执行系统初始化*/
sysinit();
sConfig.u32SysClkHz = BUS_CLK_HZ;//选择系统时钟
sConfig.u32Baudrate = 115200;//配置波特率为115200
LED0_Init();//初始化 LED
printf("\nRunning the UART_Loopback_demo project.\r\n");
printf("\nEnter any character to echo...\r\n");
UART_WaitTxComplete(UART1);//等待串口1发送完成
UART_Init(UART3,&sConfig);//初始化串口3
UART_EnableLoopback(UART3);//开启串口3环回,设定UART3为循环模式
UART_SetCallback(UART_HandleInt);
/* 禁用串口 1 收发中断 */
UART_DisableInterrupt(TERM_PORT, UART_RxBuffFullInt);
UART_DisableInterrupt(TERM_PORT, UART_TxBuffEmptyInt);
/* 使能串口 1 接收溢出中断 */
UART_EnableInterrupt(UART1, UART_RxOverrunInt);
NVIC_EnableIRQ(UART1_IRQn);//打开串口1中断
while (1)
{
send_buf[0] = UART_GetChar(TERM_PORT); //获取串口1上的字符,存放到发送缓冲区
UART_SendWait(UART3, send_buf, 1); //发送缓冲区字符到UART3口
UART_ReceiveWait(UART3, receive_buf, 1);//把UART3的内容放入接收缓冲区中
UART_PutChar(TERM_PORT, receive_buf[0]);//接收缓冲区的数据放入 UART1 口的数据寄存器
}
}
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