configdai.asm

ADI公司SHARC与BlackFin通过SPI协议相互通信的源代码

#include <sru.h>
#include <def21369.h>
#include "SPI.h"

// This function will setup the SRU Registers
.section /pm seg_pmco ; 
.global InitSRU ;
.global InitSRU1 ;
InitSRU :

	// Enable pull-up resistors on unused DPI pins
	r0 = 0x2f1f;
//	r0 = 0x2fff;
	dm(DPI_PIN_PULLUP) = r0;

	//Generating Code for connecting : DPI_PIN13 to SPI_MISO
	SRU (LOW, DPI_PBEN13_I); 
	SRU (DPI_PB13_O, SPI_MISO_I); 

	//Generating Code for connecting : SPI_CLK to DPI_PIN6
	SRU (HIGH, DPI_PBEN06_I); 
#ifdef SET_CLKPL	
	SRU (SPI_CLK_PBEN_O, DPI_PBEN06_I); 
#endif

#ifdef SET_CPHASE_CLKPL	
	SRU (SPI_CLK_PBEN_O, DPI_PBEN06_I); 
#endif

	SRU (SPI_CLK_O, DPI_PB06_I); 

	//Generating Code for connecting : SPI_MOSI to DPI_PIN7
	SRU (HIGH, DPI_PBEN07_I); 
	SRU (SPI_MOSI_O, DPI_PB07_I); 

	//Generating Code for connecting : SPI_FLG0 to DPI_PIN8
	SRU (HIGH, DPI_PBEN08_I); 
	SRU (SPI_FLG0_O, DPI_PB08_I);

	// Return back from the subroutine
InitSRU.end:	rts;


InitSRU1 :

	// Enable pull-up resistors on unused DAI pins
	r0 = 0xf3fff;
	dm(DAI_PIN_PULLUP) = r0;

	//Generating Code for connecting : LOW to DAI_PIN15
	SRU (HIGH, PBEN15_I); 
	SRU (LOW, DAI_PB15_I); 

	//Generating Code for connecting : LOW to DAI_PIN16
	SRU (HIGH, PBEN16_I); 
	SRU (LOW, DAI_PB16_I); 
	
	// Return back from the subroutine
	rts;
	
InitSRU1.end: