#include "DSP28x_Project.h" // Device Headerfile and Examples Include File
#include"SCI.h"
extern void sci_init(Uint16 channel);
Uint16 RV_1; // RV_1定义为接收字符
extern void Step_dianji_1(void); //电机正转
extern void Step_dianji_2(void); //电机反转
//==========函数声明======
interrupt void scicTx_isr(void); //发送中断
interrupt void scicRX_isr(void); //接收中断
interrupt void scicTx_isr()
{
PieCtrlRegs.PIEACK.all|=M_INT8; //
}
interrupt void scicRx_isr()
{
RV_1=sci_recvonechar(SCIC);
PieCtrlRegs.PIEACK.all|=M_INT8; //
}
void main(void)
{
/*********begin*******************/
// Uint16 ReceivedChar;
/*********end********************/
// char *msg;
InitSysCtrl(); // 系统初始化
DINT; //禁止CPU中断
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
DELAY_US(1000L);
InitScicGpio() ;
//init SCIC
sci_init(SCIC);
EALLOW;
//PieVectTable.SCITXINTA=&sciaTx_isr;
//PieVectTable.SCITXINTA=&sciaRx_isr;
//PieVectTable.SCITXINTB=&scibTx_isr;
//PieVectTable.SCITXINTA=&scibTx_isr;
PieVectTable.SCITXINTC=&scicTx_isr;
PieVectTable.SCIRXINTC=&scicRx_isr;
EDIS;
PieCtrlRegs.PIECTRL.bit.ENPIE=1; //Enable
//IER|=M_INT9;
IER|=M_INT8; //Enable PIEINT8(SCIC)
// PieCtrlRegs.pieier9.bit.INTx1=1
// PieCtrlRegs.pieier9.bit.INTx2=1
// PieCtrlRegs.pieier9.bit.INTx3=1
// PieCtrlRegs.pieier9.bit.INTx4=1
PieCtrlRegs.PIEIER8.bit.INTx5=1; // SCI_RX_INT
PieCtrlRegs.PIEIER8.bit.INTx6=1; // _TX_
EINT;
ERTM;
sci_sendonechar(SCIC,'A');
//sci_sendlistchar(SCIC,"Hello\r\n");
for(;;)
{
if(RV_1=='A')
{Step_dianji_1();
sci_sendonechar(SCIC,'B');}
if(RV_1=='C')
{Step_dianji_2();
sci_sendonechar(SCIC,'D');}
}
} // end of main
void sci_init(Uint16 channel)
{
//-----初始化SCIC-----
if(channel== SCIC)
{
//初始化用到的GPIO引脚为外设模式
ScicRegs.SCICCR.all=0x07; // 1位停止位，禁止内部回路功能，无奇偶校检位
ScicRegs.SCICTL1.all=0x03; //使能TX,RX，使能SCICLK
ScicRegs.SCIHBAUD=0x1; //9600波特率 LSPCLK=37.5MHhz
ScicRegs.SCILBAUD=0xE7;
ScicRegs.SCICTL2.bit.RXBKINTENA=1; //
ScicRegs.SCICTL2.bit.TXINTENA=1; //
}
}
//* 通过指定的SCI端口发送一个字符串
//***********
void sci_sendonechar(Uint16 channel,Uint16 data)
{
ScicRegs.SCITXBUF=data;
while(ScicRegs.SCICTL2.bit.TXRDY==0); //等待，直到SCITXBUF可以接收下一个数据
}
// 存储指定SCI端口所接收到的数据
// *********************************
Uint16 sci_recvonechar(Uint16 channel)
{Uint16 data;
if(channel==SCIC)
{data=ScicRegs.SCIRXBUF.all;}
return data;
}
这是我改的 串口程序，电脑串口助手驱动都整好了，就是不能正常收发，步进电机程序还没加入 |
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