util.c

用tms320vc5416烧写串行FLASH at25f1024程序

#include"myApp.h"

void initCLK( int value)
{
    int i;
    CLKMD=0;
    for(i=0;i<5;i++);
    CLKMD=value;
    for(i=0;i<5;i++);
}
void initInterrupt( void )
{
      int i; 
      asm(" ssbx INTM");
      i= PMST; 		      
	  PMST =i&0xff;
	  IMR=0x30;
	  IFR=0xff;
	  asm(" rsbx INTM");	
}

unsigned int *left,*right;
void initVal( void)
{
  left =(unsigned int *)LEFT_PTR;
  right=(unsigned int *)RIGHT_PTR;
  *(int *)FLAG =0;

}

void initMcBSP2( void )/*configuation the McBSP1 as SPI mode*/
{
    int i;
    SPSA2=SPCR1;
    SPSD2=0;     /*reset rev */
    SPSA2=SPCR2; /*reset xtm*/
    SPSD2=0;
    
    SPSA2=SPCR1;
    SPSD2=0x1800;//
    
    SPSA2=RCR1;
    SPSD2=0x0a0;//
    
    SPSA2=XCR1;
    SPSD2=0x0a0;//单字，每字32位
    
    SPSA2=SRGR2;
    SPSD2=0x2000;//cpu clk
    
    SPSA2=SRGR1;
    SPSD2=0xf9;//clk/250
    
    SPSA2=XCR2;
    SPSD2=0x1;//1位数据延迟
    
    SPSA2=RCR2;
    SPSD2=0x1;//1
    
    SPSA2=PCR;
    SPSD2=0xA0d;//a0a
    
    SPSA2=SPCR2;
    SPSD2=0x240;//
    for(i=0;i<10;i++);
    
    SPSA2=SPCR1;
    SPSD2=SPSD2|0x1;     /*reset rev */
    SPSA2=SPCR2;         /*reset xtm*/
    SPSD2=SPSD2|0x1;
    for(i=0;i<10;i++);

}

void McBSP2_32bit( void )/*configuation the McBSP1 as SPI mode*/
{
    int i;
    SPSA2=SPCR1;
    SPSD2=0;     /*reset rev */
    SPSA2=SPCR2; /*reset xtm*/
    SPSD2=0;
    
    SPSA2=SPCR1;
    SPSD2=0x1800;//
    
    SPSA2=RCR1;
    SPSD2=0x300;//
    
    SPSA2=XCR1;
    SPSD2=0x300;//4字，每字8位
    
    SPSA2=SRGR2;
    SPSD2=0x2000;//cpu clk
    
    SPSA2=SRGR1;
    SPSD2=0xf9;//clk/250
    
    SPSA2=XCR2;
    SPSD2=0x5;//1位数据延迟
    
    SPSA2=RCR2;
    SPSD2=0x5;//
    
    SPSA2=PCR;
    SPSD2=0xA0d;//a0a
    
    SPSA2=SPCR2;
    SPSD2=0x240;//
    for(i=0;i<10;i++);
    
    SPSA2=SPCR1;
    SPSD2=SPSD2|0x1;     /*reset rev */
    SPSA2=SPCR2;         /*reset xtm*/
    SPSD2=SPSD2|0x1;
    for(i=0;i<10;i++);

}
void McBSP2_16bit( void )/*configuation the McBSP1 as SPI mode*/
{
    int i;
    SPSA2=SPCR1;
    SPSD2=0;     /*reset rev */
    SPSA2=SPCR2; /*reset xtm*/
    SPSD2=0;
    
    SPSA2=SPCR1;
    SPSD2=0x1800;//
    
    SPSA2=RCR1;
    SPSD2=0x100;//
    
    SPSA2=XCR1;
    SPSD2=0x100;//2字，每字8位
    
    SPSA2=SRGR2;
    SPSD2=0x2000;//cpu clk
    
    SPSA2=SRGR1;
    SPSD2=0xf9;//clk/250
    
    SPSA2=XCR2;
    SPSD2=0x5;//1位数据延迟
    
    SPSA2=RCR2;
    SPSD2=0x5;//
    
    SPSA2=PCR;
    SPSD2=0xA0d;//a0a
    
    SPSA2=SPCR2;
    SPSD2=0x240;//
    for(i=0;i<10;i++);
    
    SPSA2=SPCR1;
    SPSD2=SPSD2|0x1;     /*reset rev */
    SPSA2=SPCR2;         /*reset xtm*/
    SPSD2=SPSD2|0x1;
    for(i=0;i<10;i++);

}

void McBSP2_8bit( void )/*configuation the McBSP1 as SPI mode*/
{
    int i;
    SPSA2=SPCR1;
    SPSD2=0;     /*reset rev */
    SPSA2=SPCR2; /*reset xtm*/
    SPSD2=0;
    
    SPSA2=SPCR1;
    SPSD2=0x1800;//
    
    SPSA2=RCR1;
    SPSD2=0x000;//
    
    SPSA2=XCR1;
    SPSD2=0x000;//3字，每字8位
    
    SPSA2=SRGR2;
    SPSD2=0x2000;//cpu clk
    
    SPSA2=SRGR1;
    SPSD2=0xf9;//clk/250
    
    SPSA2=XCR2;
    SPSD2=0x5;//1位数据延迟
    
    SPSA2=RCR2;
    SPSD2=0x5;//
    
    SPSA2=PCR;
    SPSD2=0xA0d;//a0a
    
    SPSA2=SPCR2;
    SPSD2=0x240;//
    for(i=0;i<10;i++);
    
    SPSA2=SPCR1;
    SPSD2=SPSD2|0x1;     /*reset rev */
    SPSA2=SPCR2;         /*reset xtm*/
    SPSD2=SPSD2|0x1;
    for(i=0;i<10;i++);

}

void McBSP2_40bit( void )/*configuation the McBSP1 as SPI mode*/
{
    int i;
    SPSA2=SPCR1;
    SPSD2=0;     /*reset rev */
    SPSA2=SPCR2; /*reset xtm*/
    SPSD2=0;
    
    SPSA2=SPCR1;
    SPSD2=0x1800;//
    
    SPSA2=RCR1;
    SPSD2=0x400;//
    
    SPSA2=XCR1;
    SPSD2=0x400;//5字，每字8位
    
    SPSA2=SRGR2;
    SPSD2=0x2000;//cpu clk
    
    SPSA2=SRGR1;
    SPSD2=0xf9;//clk/250
    
    SPSA2=XCR2;
    SPSD2=0x5;//1位数据延迟
    
    SPSA2=RCR2;
    SPSD2=0x5;//
    
    SPSA2=PCR;
    SPSD2=0xA0d;//a0a
    
    SPSA2=SPCR2;
    SPSD2=0x240;//
    for(i=0;i<10;i++);
    
    SPSA2=SPCR1;
    SPSD2=SPSD2|0x1;     /*reset rev */
    SPSA2=SPCR2;         /*reset xtm*/
    SPSD2=SPSD2|0x1;
    for(i=0;i<10;i++);

}