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I2C 的代码
i2c.asm
ACK BIT 10H ;应答标志位
SLA DATA 50H ;器件地址字
SUBA DATA 51H ;器件子地址
NUMBYTE DATA 52H ;读/写字节数
SDA BIT P1.5
SCL BIT P1.4 ;I2C总线定义
MTD EQU 30H ;发送数据缓存区首地址(30H-3FH)
MRD EQU 40H ;接收数
i2c.lst
A51 MACRO ASSEMBLER I2C 08/25/2006 15:57:59 PAGE 1
MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN I2C.OBJ
ASSEMBLER INVO
i2c.c
#include "hpa449lib.h"
/*****************************************************************************
** [file]
** i2c.c
** [Puropse]
** I2C site selection functions
*/
void I2C_Init(void)
i2c.o.d
i2c.o: ../i2c.c D:/Electronic/WinAVR/avr/include/avr/io.h \
D:/Electronic/WinAVR/avr/include/avr/sfr_defs.h \
D:/Electronic/WinAVR/avr/include/inttypes.h \
D:/Electronic/WinAVR/avr/include/st
i2c.c
//-----------------------------------------------------------------
// I2C驱动程序
//-----------------------------------------------------------------
#include "I2C.h"
//子器件地址定义
#define DEV_SUB_ADDR
i2c.h
//-----------------------------------------------------------------
// I2C驱动程序头文件
//-----------------------------------------------------------------
#include
#define INT8U unsigned char
i2c.c
//-----------------------------------------------------------------
// 名称: I2C驱动程序
//-----------------------------------------------------------------
#define INT8U unsigned char
#define INT16U
i2c.h
//-----------------------------------------------------------------
// 名称: I2C驱动程序头文件
//-----------------------------------------------------------------
void IIC_Init();
void IIC_WaitForIdle();
i2c.s
.module I2C.C
.area text(rom, con, rel)
.dbfile E:\Steaven2000\AVR\AVR_Book\PROGRA~1\SOURCE~1\Code\I2C总线应用设计\I2C.C
.dbfunc e Delayms _Delayms fV
; time -> R16,R17
.even
_Delayms::
i2c.h
//***************************************************************
// File Name : I2C.C
// Author : Steaven
// Created : 2008-06-09
// Modified :
// Revision : V0.0
//********************