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| /\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
1.TLC5615 DA模块
【程序功能】TLC5615输出256点正弦波
TLC5615 DA模块本身必须使用5V电源，控制信号可以接受3.3V或者5V。
【IO配置】
DIN ---> P1.0
SCLK ---> P1.1
CS ---> P1.2
Dout ---> 空，未定义
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#include<reg52.h> //包含51单片机寄存器定义的头文件
#include<intrins.h> //包含nop函数的头文件
#define uchar unsigned char //宏定义
#define uint unsigned int //宏定义
sbit DIN =P1^0; //IO定义
sbit SCLK =P1^1;
sbit CS =P1^2;
uint code sin1[256]= //256点12位数据的正弦波表
{
0x7F,0x82,0x85,0x88,0x8B,0x8F,0x92,0x95,0x98,0x9B,0x9E,0xA1,0xA4,0xA7,0xAA,0xAD
,0xB0,0xB3,0xB6,0xB8,0xBB,0xBE,0xC1,0xC3,0xC6,0xC8,0xCB,0xCD,0xD0,0xD2,0xD5,0xD7
,0xD9,0xDB,0xDD,0xE0,0xE2,0xE4,0xE5,0xE7,0xE9,0xEB,0xEC,0xEE,0xEF,0xF1,0xF2,0xF4
,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFB,0xFC,0xFD,0xFD,0xFE,0xFE,0xFE,0xFE,0xFE
,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFD,0xFD,0xFC,0xFB,0xFB,0xFA,0xF9,0xF8,0xF7,0xF6
,0xF5,0xF4,0xF2,0xF1,0xEF,0xEE,0xEC,0xEB,0xE9,0xE7,0xE5,0xE4,0xE2,0xE0,0xDD,0xDB
,0xD9,0xD7,0xD5,0xD2,0xD0,0xCD,0xCB,0xC8,0xC6,0xC3,0xC1,0xBE,0xBB,0xB8,0xB6,0xB3
,0xB0,0xAD,0xAA,0xA7,0xA4,0xA1,0x9E,0x9B,0x98,0x95,0x92,0x8F,0x8B,0x88,0x85,0x82
,0x7F,0x7C,0x79,0x76,0x73,0x6F,0x6C,0x69,0x66,0x63,0x60,0x5D,0x5A,0x57,0x54,0x51
,0x4E,0x4B,0x48,0x46,0x43,0x40,0x3D,0x3B,0x38,0x36,0x33,0x31,0x2E,0x2C,0x29,0x27
,0x25,0x23,0x21,0x1E,0x1C,0x1A,0x19,0x17,0x15,0x13,0x12,0x10,0x0F,0x0D,0x0C,0x0A
,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x05,0x06,0x07,0x08
,0x09,0x0A,0x0C,0x0D,0x0F,0x10,0x12,0x13,0x15,0x17,0x19,0x1A,0x1C,0x1E,0x21,0x23
,0x25,0x27,0x29,0x2C,0x2E,0x31,0x33,0x36,0x38,0x3B,0x3D,0x40,0x43,0x46,0x48,0x4B
,0x4E,0x51,0x54,0x57,0x5A,0x5D,0x60,0x63,0x66,0x69,0x6C,0x6F,0x73,0x76,0x79,0x7C
};
void delay\_us(unsigned char n) //us级延时函数
{
unsigned char i;
for(i=0;i<n;i++);
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
1.sclk的上升沿数据进入输入寄存器
2.在sclk为低的时候，CS的上升沿数据开始DA转化
3.连续输入12位数据，高位在前，其中前10位有效，后两位补0
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void output(uint DA_Value) //TLC5615驱动函数
{
unsigned char i;
DA_Value=DA_Value<<6; //将DA\_Value左移6位，即nnnn nnnn nnnn变为nnnn nnnn nn00 0000
SCLK=0; //为低，准备输入数据
CS=0; //片选
for(i=12;i>0;i--) //从高位开始，连续取出12位数据，
{
if(DA_Value&0x8000) //和1000 0000 0000 0000 求与，获取最高位的值。
DIN=1;
else
DIN=0;
SCLK=1; //上升沿，进入输入寄存器
SCLK=0; //准备下一次输入
DA_Value=DA_Value<<1; //左移1位，准备输入下一位数据
}
CS=1; //在sclk为低的时候，CS上升沿，数据开始DA转化
}
void main()
{
uint i;
while(1)
{
i=0;
for(i=0;i<255;i++) //连续取出256点正弦数据
output(sin1[i]); //输出正弦波
}
}
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