initsci.c

基于TMS320F2812的电动机控制源码(使用C语言)

/**********************************************************************
* File: Sci.c
* Devices: TMS320F2812, TMS320F2811, TMS320F2810
**********************************************************************/

#include "DSP281x_Device.h"

// EXAMPLE_BIOS or EXAMPLE_NONBIOS are defined in the CCS project build options
#ifdef EXAMPLE_BIOS
    #include "example_BIOS.h"
#endif

#ifdef EXAMPLE_NONBIOS
    #include "example_nonBIOS.h"
#endif


/**********************************************************************
* Function: InitSci()
*
* Description: Initializes the SCI on the F281x.
**********************************************************************/

void InitSciA()
{

/******/
	SciaRegs.SCICCR.all=0x07;		//SCI通信控制寄存器
/* 
 bit 7         0:      STOP BITS 一个结束位
 bit 6         0:      parity  奇极性
 bit 5         0:      parity enable 禁止极性功能
 bit 4         0:      loop back ena 禁止回送测试模式功能
 bit 3         0:      addr/idle mode 选择空闲线协议
 bit 2         1:      字符长度8
 bit 1         1:      字符长度8
 bit 0         1:      字符长度8
*/			

/******/
	SciaRegs.SCICTL1.all=0x03;		//SCI控制寄存器1
/*
 bit 7         0:      reserved
 bit 6         0:      rx err int ena
 bit 5         0:      sw reset
 bit 4         0:      reserved
 bit 3         0:      tx wake
 bit 2         0:      sleep
 bit 1         1:      tx ena
 bit 0         1:      rx ena

*/
/******/
	SciaRegs.SCICTL2.all=0x0002;		//SCI控制寄存器2
/*
 bit15-8		;      reserved
 bit 7         0:      TXRDY
 bit 6         0:      TX EMPTY
 bit 5         0:      Reserved
 bit 4         0:      Reserved
 bit 3         0:      Reserved
 bit 2         0:      Reserved
 bit 1         1:      RS/BK INT ENA
 bit 0         1:      TX INT ENA

*/
/******/
	SciaRegs.SCIHBAUD=0x01;			//SCI波特率选择寄存器
	SciaRegs.SCILBAUD=0xe7;

/******/
//	ScibRegs.SCIFFTX.bit.SCIFFENA=1;//使能SCI FIFO的增强型功能
//	ScibRegs.SCIFFRX.bit.RXFFIENA=1;
//	ScibRegs.SCIFFRX.all=0x0021;
//	ScibRegs.SCIFFTX.all=0x0c021;
//	ScibRegs.SCIFFTX.bit.TXFFIENA=0;
//	ScibRegs.SCIFFCT.all=0x0;

	SciaRegs.SCICTL1.all=0x23;
	PieCtrlRegs.PIEIER9.bit.INTx1 = 1;	// Enable SCIRXINT in PIE group 9
//	PieCtrlRegs.PIEIER9.bit.INTx4 = 1;	// Enable SCITXINT in PIE group 9
	IER |= 0x0100;						// Enable INT9 in IER to enable PIE group 9



} // end SciInit()





//void InitSciB()
//{

/******/
//	ScibRegs.SCICCR.all=0x07;		//SCI通信控制寄存器
/* 
 bit 7         0:      STOP BITS 一个结束位
 bit 6         0:      parity  奇极性
 bit 5         0:      parity enable 禁止极性功能
 bit 4         0:      loop back ena 禁止回送测试模式功能
 bit 3         0:      addr/idle mode 选择空闲线协议
 bit 2         1:      字符长度8
 bit 1         1:      字符长度8
 bit 0         1:      字符长度8
*/			

/******/
//	ScibRegs.SCICTL1.all=0x03;		//SCI控制寄存器1
/*
 bit 7         0:      reserved
 bit 6         0:      rx err int ena
 bit 5         0:      sw reset
 bit 4         0:      reserved
 bit 3         0:      tx wake
 bit 2         0:      sleep
 bit 1         1:      tx ena
 bit 0         1:      rx ena

*/
/******/
//	ScibRegs.SCICTL2.all=0x0002;		//SCI控制寄存器2
/*
 bit15-8		;      reserved
 bit 7         0:      TXRDY
 bit 6         0:      TX EMPTY
 bit 5         0:      Reserved
 bit 4         0:      Reserved
 bit 3         0:      Reserved
 bit 2         0:      Reserved
 bit 1         1:      RS/BK INT ENA
 bit 0         1:      TX INT ENA

*/
/******/
//	ScibRegs.SCIHBAUD=0x01;			//SCI波特率选择寄存器
//	ScibRegs.SCILBAUD=0xe7;

/******/
//	ScibRegs.SCIFFTX.bit.SCIFFENA=1;//使能SCI FIFO的增强型功能
//	ScibRegs.SCIFFRX.bit.RXFFIENA=1;
//	ScibRegs.SCIFFRX.all=0x0021;
//	ScibRegs.SCIFFTX.all=0x0c021;
//	ScibRegs.SCIFFTX.bit.TXFFIENA=0;
//	ScibRegs.SCIFFCT.all=0x0;

//	ScibRegs.SCICTL1.all=0x23;
//	PieCtrlRegs.PIEIER9.bit.INTx3 = 1;	// Enable SCIRXINT in PIE group 9
//	PieCtrlRegs.PIEIER9.bit.INTx4 = 1;	// Enable SCITXINT in PIE group 9
//	IER |= 0x0100;						// Enable INT9 in IER to enable PIE group 9



//} // end SciInit()