dsp281x_sci.c

TMSC320F2812串口SCI通信,SCIA,SCIB,波特率设置

//###########################################################################
//
// FILE:	DSP281x_Sci.c
//
// TITLE:	DSP281x SCI Initialization & Support Functions.
//
//###########################################################################

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File

//---------------------------------------------------------------------------
// InitScI: 
//---------------------------------------------------------------------------
// This function initializes the SPI(s) to a known state.
//
void InitSci(void)
{   
   SciaRegs.SCICCR.all =0x0007;   // 1 stop bit,  No loopback 
                                  // No parity,8 char bits,
                                  // async mode, idle-line protocol
   SciaRegs.SCICTL1.all =0x0003;  // enable TX, RX, internal SCICLK, 
                                  // Disable RX ERR, SLEEP, TXWAKE
   SciaRegs.SCICTL2.bit.TXINTENA =1;
   SciaRegs.SCICTL2.bit.RXBKINTENA =1;
   SciaRegs.SCIHBAUD = 0x0000;
   SciaRegs.SCILBAUD = 0x00A1;
   SciaRegs.SCICCR.bit.LOOPBKENA =0;     // Enable loop back  
   SciaRegs.SCIFFTX.all=0xC006;
   SciaRegs.SCIFFRX.all=0x0027;
   SciaRegs.SCIFFCT.all=0x00;
   SciaRegs.SCICTL1.all =0x0023;        // Relinquish SCI from Reset 
   SciaRegs.SCIFFTX.bit.TXFIFOXRESET=1;
   SciaRegs.SCIFFRX.bit.RXFIFORESET=1;
   	 
    
   /*
   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 = 0x0000;
   ScibRegs.SCILBAUD = 0x00f3;
   ScibRegs.SCICCR.bit.LOOPBKENA =0; // Enable loop back  
   ScibRegs.SCIFFTX.all=0xC026;
   ScibRegs.SCIFFRX.all=0x0026;
   ScibRegs.SCIFFCT.all=0x00;

   ScibRegs.SCICTL1.all =0x0023;     // Relinquish SCI from Reset 
   ScibRegs.SCIFFTX.bit.TXFIFOXRESET=1;
   ScibRegs.SCIFFRX.bit.RXFIFORESET=1;	 
   */       
}	
	
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