TI DSP 28335 串口FIFO中断接收程序

#include "DSP28x_Project.h" // Device Headerfile and Examples Include Fil #define LED10_OFF GpioDataRegs.GPASET.bit.GPIO0 = 1 //LED D10 熄灭 #define LED10_ON GpioDataRegs.GPACLEAR.bit.GPIO0 = 1 //LED D10 点亮 #define LED11_OFF GpioDataRegs.GPASET.bit.GPIO1 = 1 //LED D11 熄灭 #define LED11_ON GpioDataRegs.GPACLEAR.bit.GPIO1 = 1 //LED D11 点亮 #define DELAY_TIME 2000000 //延时时间 // Prototype statements for functions found within this file. interrupt void scibRxFifoIsr(void); interrupt void scicRxFifoIsr(void); void scib_fifo_init(void); void scic_fifo_init(void); void delay(Uint32 t); // Global variables Uint16 rdataB[12]; // Received data for SCI-A Uint16 rdataC[12]; void main(void) { Uint16 i; InitSysCtrl(); InitSciGpio(); DINT; InitPieCtrl(); IER = 0x0000; IFR = 0x0000; InitPieVectTable(); EALLOW; // This is needed to write to EALLOW protected registers PieVectTable.SCIRXINTB = &scibRxFifoIsr; PieVectTable.SCIRXINTC = &scicRxFifoIsr; EDIS; // This is needed to disable write to EALLOW protected registers scib_fifo_init(); // Init SCI-B scic_fifo_init(); // Init SCI-B // Enable interrupts required for this example PieCtrlRegs.PIECTRL.bit.ENPIE = 1; // Enable the PIE block PieCtrlRegs.PIEIER8.bit.INTx5 = 1; //for scirxintc PieCtrlRegs.PIEIER9.bit.INTx3=1; // PIE Group 9, INT3 for scirxintb IER = 0x180; // Enable CPU INT EINT; //初始化LED的端口 EALLOW; GpioCtrlRegs.GPAPUD.bit.GPIO0 = 0; // Enable pullup on GPIO11 GpioDataRegs.GPASET.bit.GPIO0 = 1; // Load output latch GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0; // GPIO11 = GPIO GpioCtrlRegs.GPADIR.bit.GPIO0 = 1; // GPIO11 = output GpioCtrlRegs.GPAPUD.bit.GPIO1 = 0; // Enable pullup on GPIO11 GpioDataRegs.GPASET.bit.GPIO1 = 1; // Load output latch GpioCtrlRegs.GPAMUX1.bit.GPIO1 = 0; // GPIO11 = GPIO GpioCtrlRegs.GPADIR.bit.GPIO1 = 1; // GPIO11 = output EDIS; LED10_ON; //LED1 D10 点亮 delay(DELAY_TIME); //延时 LED10_OFF; //LED1 D10 熄灭 LED11_ON; //LED1 D10 点亮 delay(DELAY_TIME); //延时 LED11_OFF; // Step 6. IDLE loop. Just sit and loop forever (optional): for(;;); } interrupt void scibRxFifoIsr(void) { Uint16 i; LED10_ON; //LED1 D10 点亮 delay(DELAY_TIME); //延时 LED10_OFF; //LED1 D10 熄灭 for(i=0;i<12;i++) { rdataB[i]=ScibRegs.SCIRXBUF.all; // Read data } ScibRegs.SCIFFRX.bit.RXFFOVRCLR=1; // Clear Overflow flag ScibRegs.SCIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag PieCtrlRegs.PIEACK.all|=0x100; // Issue PIE ack } void scib_fifo_init() { ScibRegs.SCICCR.all =0x0007; // 1 stop bit, No loopback // No parity,8 char bits, // async mode, idle-line protocol ScibRegs.SCICTL1.all =0x0003; // enable TX, RX, internal SCICLK, // Disable RX ERR, SLEEP, TXWAKE ScibRegs.SCICTL2.bit.TXINTENA =1; ScibRegs.SCICTL2.bit.RXBKINTENA =1; ScibRegs.SCIHBAUD =0x0001; ScibRegs.SCILBAUD =0x00e7; ScibRegs.SCIFFTX.all=0xc000; ScibRegs.SCIFFRX.all=0x002c; ScibRegs.SCIFFCT.all=0x00; ScibRegs.SCICTL1.all =0x0023; // Relinquish SCI from Reset ScibRegs.SCIFFTX.bit.TXFIFOXRESET=1; ScibRegs.SCIFFRX.bit.RXFIFORESET=1; } interrupt void scicRxFifoIsr(void) { Uint16 i; LED11_ON; //LED1 D10 点亮 delay(DELAY_TIME); //延时 LED11_OFF; //LED1 D10 熄灭 for(i=0;i<12;i++) { rdataC[i]=ScicRegs.SCIRXBUF.all; // Read data } ScicRegs.SCIFFRX.bit.RXFFOVRCLR=1; // Clear Overflow flag ScicRegs.SCIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag PieCtrlRegs.PIEACK.all|=0x080; // Issue PIE ack } void scic_fifo_init() { ScicRegs.SCICCR.all =0x0007; // 1 stop bit, No loopback // No parity,8 char bits, // async mode, idle-line protocol ScicRegs.SCICTL1.all =0x0003; // enable TX, RX, internal SCICLK, // Disable RX ERR, SLEEP, TXWAKE ScicRegs.SCICTL2.bit.TXINTENA =1; ScicRegs.SCICTL2.bit.RXBKINTENA =1; ScicRegs.SCIHBAUD =0x0001; ScicRegs.SCILBAUD =0x00e7; ScicRegs.SCIFFTX.all=0xc000; ScicRegs.SCIFFRX.all=0x002c; ScicRegs.SCIFFCT.all=0x00; ScicRegs.SCICTL1.all =0x0023; // Relinquish SCI from Reset ScicRegs.SCIFFTX.bit.TXFIFOXRESET=1; ScicRegs.SCIFFRX.bit.RXFIFORESET=1; } /*********************************************延时函数************************************************/ void delay(Uint32 t) { Uint32 i = 0; for (i = 0; i < t; i++); }