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SPI 的代码
spi.c
#include
#define _V_SPI_
#define SPI_PORT PORTB
#define SPI_DDR DDRB
#define SPI_PIN PINB
#define DS1302_MOSI 5 //PB5 MOSI要串10K电阻到MISO，然后把MISO跟DS1302_IO脚短接在一起的
#define DS1302_M
spi.h
#ifndef _SPI_
#define _SPI_
void init_SPI(void);
char spi_rw(char wdata);
void un_init_SPI(void);
#endif
spi.vhd
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity spi is
port
(
reset : in std_logic;
sysclk : in std_logic;
cpu_
spi.c
#include "SPI.h"
bdata unsigned char DATA_BUF;
#define DATA7 ((DATA_BUF&BYTE_BIT7) != 0)
#define DATA0 ((DATA_BUF&BYTE_BIT0) != 0)
sbit flag =DATA_BUF^7;
sbit flag1 =DATA_BUF^0;
//
spi.h
#ifndef SPI_H
#define SPI_H
#include
#include "def.h"
void SpiCmdWrite(unsigned char command,unsigned char WriteBuf[],unsigned char len);
void SpiCmdRead(unsigned char command,uns
spi.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectName="spi"
ProjectDir="C:\ti\myprojects\spi\"
ProjectType=Executable
CPUFamily=TMS320C28X