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SPI 的代码
spi.c
/* SPI接口子程序,供CH374子程序库调用 */
UINT8 CH374_READ_REGISTER( UINT8 mAddr ) /* 外部定义的被CH374程序库调用的子程序,从指定寄存器读取数据 */
{
UINT8 d;
Spi374Start( mAddr, CMD_SPI_374READ );
d = Spi374InByte( );
Spi374Sto
spi.c
/* SPI接口子程序,供CH374子程序库调用 */
UINT8 CH374_READ_REGISTER( UINT8 mAddr ) /* 外部定义的被CH374程序库调用的子程序,从指定寄存器读取数据 */
{
UINT8 d;
Spi374Start( mAddr, CMD_SPI_374READ );
d = Spi374InByte( );
Spi374Sto
spi.c
/* SPI接口子程序,供CH374子程序库调用 */
UINT8 CH374_READ_REGISTER( UINT8 mAddr ) /* 外部定义的被CH374程序库调用的子程序,从指定寄存器读取数据 */
{
UINT8 d;
Spi374Start( mAddr, CMD_SPI_374READ );
d = Spi374InByte( );
Spi374Sto
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
spi.asm
;用户寄存器定义
SPI_DATA .usect ".data0",1 ;临时数据寄存器
SPI_FLAG .usect ".data0",1 ;SPI 标志位
SPI_CON .usect ".data0",1 ;MAX5741的控制字
DP_USER .set 5 ;用户寄存器存放页指针
;MAX5121 的控制字宏定义
DACOUT .s
spi+da.c
//该程序利用LF2407的SPI模块向MAX5741芯片发送数据用于D/A转换，MAX5741的模拟输出端A输出一个三角波
#include "register.h"
int GPR3;
int flag1;
int flag;
//系统初始化子程序
void initial()
{
asm(" setc INTM"); //屏蔽中
spi+da.pjt
; Code Composer Project File, Version 2.0 (do not modify or remove this line)
[Project Settings]
ProjectDir="E:\lp\spi+DA\"
ProjectType=Executable
CPUFamily=TMS320C24XX
Tool="Compiler"
Tool="C
spi.err
Creating 'spi.eep'
Creating 'spi.obj'
Creating 'spi.lst'
Assembling 'spi.asm'
Including 'spi.vec'
Including 'spi.inc'
spi.asm(1216) :
Program memory usage:
Code : 879 w
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
spi.lst
C51 COMPILER V8.02 SPI 04/10/2008 10:43:46 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE SPI
OBJECT MODULE PLACED IN .\x