mcp2510的can总线收发器程序

mcp2510的can总线收发器程序

pcbomb 发表于 2008-6-30 14:47:00 阅读全文(769) | 回复(1) | 引用通告(0) | 编辑

＃i nclude <stdio.h>

＃i nclude "mcp2510.h"

void mcp_reset(void)

{

SPI_init_hw(); //设置成SPI方式

init_can_io(); //

SPI_mcp_reset(); //

}

void mcp_read( unsigned char MCPaddr, unsigned char* readdata, unsigned char length ) {

unsigned char loopCnt;

SPI_mcp_select(); // Select the MCP device at the SPI bus

// Start reading and set first address

SPI_mcp_RD_address(MCPaddr);

for (loopCnt=0; loopCnt < length; loopCnt++)

{

// Get a byte and store at pointer

*readdata = SPI_putch(MCPaddr);

// Increment the pointers to next location

// Test++;

MCPaddr++;

readdata++;

}

SPI_mcp_unselect();

}

void mcp_write( unsigned char MCPaddr, unsigned char* writedata, unsigned char length ) {

unsigned char loopCnt;

SPI_mcp_select();

// Start write and set first address

SPI_mcp_WR_address( MCPaddr );

for (loopCnt=0; loopCnt < length; loopCnt++)

{

// Write a byte

SPI_putch( *writedata );

// Increment the pointer to next location

writedata++;

}