main.c

使用C8051F040的硬件SPI口控制FLASH芯片AT45DB321,P0的0,1,2配置为3线SPI口,P6的0,1,2,3软件控制AT45DB321的状态引脚

//main.c

#include <C8051F040.H>	// Register definition file.
#include <intrins.h>
#include "YC8051F040.H"
#include "AT45DB321C.h"

bit SPI_BUSY;
unsigned char temp;
xdata unsigned char FlashSend[528];
xdata unsigned char FlashRecieve[528];


void main()
{
	unsigned int j;
	
	WDTCN = 0xDE;                       // disable watchdog
	WDTCN = 0xAD;
	os_init();
	port_init();
	spi_init();

	EA = 0;

	for(j = 0; j < 528; j++)
	{
		if(j<256)
		FlashSend[j] = 0xaa;
		if((j>255)&&(j<512))
		FlashSend[j] = 0xaa;
		if(j>511)
		FlashSend[j] = 0xaa;
	}

	while(1)
	{
		//temp = FLASHReadStatReg();
		FlASHWriteViaBuffer(0,1,0,528,FlashSend);
			 
		FLASHRead(0,1,0,528,FlashRecieve);
/*
		for(j = 0; j < 8192; j++)
		{
//			FlASHWriteViaBuffer(0,j,0,528,FlashSend);
			 
			FLASHRead(0,j,0,528,FlashRecieve);
		}
		j = j;
*/	
	}
}