DDB/source/msp/UART2.c

#include "uart2.h"
#include "uartx.h"

//TS_Handle_PH3 s_uart2_tcp_rec; 

void L0_uart2_init(void)
{
#if (MainFre_11M == D_sys_MainFre) // 115200bps@11.0592MHz
	S2CON = 0x50;				   
	AUXR |= 0x04;				  
	T2L = 0xE8;					   
	T2H = 0xFF;					   
	AUXR |= 0x10;				   

#elif (MainFre_22M == D_sys_MainFre)  //115200bps@22.1184MHz
	S2CON = 0x50;		//8???,?????
	AUXR |= 0x04;		//?????1T??
	T2L = 0xD0;			//???????
	T2H = 0xFF;			//???????
	AUXR |= 0x10;		//???2????
#endif
}

void L0_uart2_buf_init(void)
{
	//定义发送缓冲区
	ts_uart[uNum2].s.buf = ts_send_buf.s2;
	ts_uart[uNum2].s.bufmax = D_send2_max;
	ts_uart[uNum2].s.max = ts_uart[uNum2].s.now = 0;
	ts_uart[uNum2].s.ok = D_ready;

	//定义接收缓冲区
	ts_uart[uNum2].r.buf = ts_recv_buf.r2;
	ts_uart[uNum2].r.bufmax = D_recv2_max;
	ts_uart[uNum2].r.head = 0;
	ts_uart[uNum2].r.ok = 0;
	ts_uart[uNum2].r.idle = 1;
	ts_uart[uNum2].r.overtime_t = 0;

	//定义接收处理协议
	ts_uart[uNum2].tp_handler = L0_uartN_overtime_callback; 
	ts_uart[uNum2].uartx = uNum2;
	
	//串口初始化
	L0_uart2_init();

	//打开串口中断
	D_uart2_ES_INT(1);

	//默认处于接收状态
	// D_UART2_485_RX() 
}

/*************************************************
UART 中断
*************************************************/
#define D_SERVE_uart2 interrupt 8
void INTERRUPT_uart2(void) D_SERVE_uart2 // using 2
{
	NOP();NOP();NOP();
	if (L0_uart2_IntRI()) //如果是U2接收中断
	{
		L0_uart2_IntRIClear(); //清除接收中断标志
		ts_uart[uNum2].r.reg = S2BUF;	//获取当前数据
		L0_uartN_s2b(uNum2);	//接收数据至缓冲区
	}
	if (L0_uart2_IntTI()) //如果是U0发送中断
	{
		L0_uart2_IntTIClear(); //清除发送中断标� ��
		if (ts_uart[uNum2].s.max != ts_uart[uNum2].s.now)
		{
			S2BUF = ts_uart[uNum2].s.p[ts_uart[uNum2].s.now];
			ts_uart[uNum2].s.now++;
		}
		else
		{
			ts_uart[uNum2].s.ok = D_ready;
			ts_uart[uNum2].s.max = 0;
			ts_uart[uNum2].s.now = 0; //可以发送下一个数据
//			D_UART2_485_RX() //切换到接收状态
		}
	}
	NOP();NOP();NOP();
}