853 lines
16 KiB
C
853 lines
16 KiB
C
#include "H/Function_Init.H"
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//ADC引脚命名
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#define ADC_DT0 P44
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#define ADC_CLK0 P43
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#define ADC_DT1 P05
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#define ADC_CLK1 P04
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#define ADC_DT2 P26
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#define ADC_CLK2 P25
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#define ADC_DT3 P02
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#define ADC_CLK3 P01
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//DOUT方向设置
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#define ADC_DT0_IN() {P4CON &= 0xEF;P4PH|=0x10;}
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#define ADC_DT0_OUT() {P4CON |= 0X10;}
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#define ADC_DT1_IN() { P0CON &= 0xDF;P0PH|=0x20;}
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#define ADC_DT1_OUT() { P0CON |= 0x20;}
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#define ADC_DT2_IN() { P2CON &= 0xBF;P2PH|=0x40;}
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#define ADC_DT2_OUT() { P2CON |= 0x40;}
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#define ADC_DT3_IN() {P0CON &= 0xFB;P0PH|=0x04;}
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#define ADC_DT3_OUT() {P0CON |= 0x04;}
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void CS1237_Init_all(void)
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{
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CS1237_Init();//CS1237初始化
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CS1237_Init_1();
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CS1237_Init_2();
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CS1237_Init_3();
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}
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void CS1237_Config_all(void)
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{
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CS1237_Config();
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CS1237_Config_1();
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CS1237_Config_2();
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CS1237_Config_3();
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}
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long Read_CS1237_all(uchar num)
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{
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long ret;
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switch(num)
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{
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case 0:ret = Read_CS1237();break;
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case 1:ret = Read_CS1237_1();break;
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case 2:ret = Read_CS1237_2();break;
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case 3:ret = Read_CS1237_3();break;
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default:ret = 0;break;
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}
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return ret;
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}
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/**************************************************************
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ADC芯片说明：
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1、PAG放大倍数选择需要根据输入的模拟型号的最大电压值来确定，灵敏度乘以激励电压就是最大输出；
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2、非线性，滞后性，重复性归结为综合误差，一般用%F*S来表示，就是占最大输出电压的百分比；
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3、设置输出速率之前，超时时间等长一点，不然可能会超时；
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***************************************************************/
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//////////////初始化CS1237芯片，先拉高clk进入PowerDown状态
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void CS1237_Init(void)
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{
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ADC_DT0_OUT();
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ADC_DT0 = 1;
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ADC_CLK0 = 1;
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}
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//////////////配置CS1237芯片
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uchar CS1237_Config(void)
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{
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uchar i ;
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uchar dat ;
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uint count_i = 0;
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dat =0x0c;//芯片地配置 内部REF 输出40HZ PGA=128 通道A 0X1C
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// ADC_DT0_OUT();
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// ADC_DT0 = 1;
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ADC_DT0_IN();
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ADC_CLK0 = 0;
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// UART_SendByte(0x22);
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while(ADC_DT0 ==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT0_OUT();
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ADC_CLK0 = 1;
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ADC_DT0 = 1;
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return 0; //超时，退出程序
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}
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}
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for(i=0;i<29;i++)//1-29
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{
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ADC_CLK0=1;
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Delay(1);
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ADC_CLK0=0;
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Delay(1);
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}
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ADC_DT0_OUT();
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/////////////////30-36写配置寄存器命令7bit 0X65
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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/////////////////37切换方向
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ADC_CLK0 = 1;
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Delay(1);
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ADC_CLK0 = 0;
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Delay(1);
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/////////////////38-45 写8位数据，配置参数
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for(i=0;i<8;i++)
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{
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ADC_CLK0 = 1;
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Delay(1);
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if(dat&0x80)
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ADC_DT0=1;
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else
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ADC_DT0=0;
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dat<<=1;
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ADC_CLK0 = 0;
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Delay(1);
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}
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ADC_CLK0 = 1;//46
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ADC_DT0 = 1 ;
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Delay(1);
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ADC_CLK0 = 0;
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Delay(1);
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return 1;
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}
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//////////////读芯片输出数据
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long Read_CS1237(void)
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{
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uchar i;
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unsigned long dat = 0;//读到的数据
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uint count_i = 0;//溢出计时器
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long temp;
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// ADC_DT0_OUT();
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// ADC_DT0 = 1;
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ADC_DT0_IN();
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ADC_CLK0 = 0;
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while(ADC_DT0==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT0_OUT();
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ADC_CLK0 = 1;
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ADC_DT0 = 1;
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return 0;
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}
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}
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dat = 0;
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for(i=0;i<24;i++)
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{
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ADC_CLK0 = 1;
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Delay(1);
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dat<<=1;
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if(ADC_DT0==1)
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dat++;
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ADC_CLK0 = 0;
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Delay(1);
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}
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for(i=0;i<3;i++)//接着前面24个时钟后等3个时钟，DOUT会主动拉高1次
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{
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ADC_CLK0=1;
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Delay(1);
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ADC_CLK0=0;
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Delay(1);
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}
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ADC_DT0_OUT();
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ADC_DT0=1;
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Delay(1);
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ADC_DT0_IN();
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if(dat &0x00800000)//24位补码转32位，负数需要按位取反(除符号位)，再+1转源码后，填充符号位
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{
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temp = -(((~dat)&0x007FFFFF)+1);
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}
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else
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temp = dat;
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return temp;
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}
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//////////////读芯片配置数据
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uchar Read_Config(void)
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{
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uchar i;
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uchar dat = 0;//读到的数据
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uint count_i = 0;//超时溢出计时器
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// ADC_DT0_OUT();
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// ADC_DT0 = 1;
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ADC_DT0_IN();
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ADC_CLK0 = 0;
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// UART_SendByte(0x22);
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while(ADC_DT0 ==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT0_OUT();
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ADC_CLK0 = 1;
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ADC_DT0 = 1;
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return 0; //超时，退出程序
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}
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}
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for(i=0;i<29;i++)//1-29
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{
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ADC_CLK0=1;
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Delay(1);
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ADC_CLK0=0;
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Delay(1);
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}
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ADC_DT0_OUT();
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/////////////////30-36读配置寄存器命令7bit 0X56
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=1;ADC_CLK0=0;Delay(1);
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ADC_CLK0 = 1;Delay(1);ADC_DT0=0;ADC_CLK0=0;Delay(1);
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/////////////////37切换方向
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ADC_CLK0 = 1;
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Delay(1);
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ADC_DT0_IN();
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ADC_CLK0 = 0;
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Delay(1);
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dat = 0;
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for(i=0;i<8;i++)/////////38-45,读寄存器配置
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{
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ADC_CLK0 = 1;
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Delay(1);
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ADC_CLK0 = 0;
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Delay(1);
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dat<<=1;
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if(ADC_DT0==1)
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dat++;
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}
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ADC_CLK0 = 1;//46
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Delay(1);
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ADC_DT0_OUT();
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ADC_DT0=1;
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ADC_CLK0 = 0;
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Delay(1);
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return dat;
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}
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//////////////初始化CS1237芯片，先拉高clk进入PowerDown状态
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void CS1237_Init_1(void)
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{
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ADC_DT1_OUT();
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ADC_DT1 = 1;
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ADC_CLK1 = 1;
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}
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//////////////配置CS1237芯片
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uchar CS1237_Config_1(void)
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{
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uchar i ;
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uchar dat ;
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uint count_i = 0;
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dat =0x0c;//芯片地配置 内部REF 输出40HZ PGA=128 通道A 0X1C
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ADC_DT1_OUT();
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ADC_DT1 = 1;
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ADC_DT1_IN();
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ADC_CLK1 = 0;
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// UART_SendByte(0x22);
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while(ADC_DT1 ==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT1_OUT();
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ADC_CLK1 = 1;
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ADC_DT1 = 1;
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return 0; //超时，退出程序
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}
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}
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for(i=0;i<29;i++)//1-29
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{
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ADC_CLK1=1;
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Delay(1);
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ADC_CLK1=0;
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Delay(1);
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}
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ADC_DT1_OUT();
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/////////////////30-36写配置寄存器命令7bit 0X65
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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/////////////////37切换方向
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ADC_CLK1 = 1;
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Delay(1);
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ADC_CLK1 = 0;
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Delay(1);
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/////////////////38-45 写8位数据，配置参数
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for(i=0;i<8;i++)
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{
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ADC_CLK1 = 1;
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Delay(1);
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if(dat&0x80)
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ADC_DT1=1;
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else
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ADC_DT1=0;
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dat<<=1;
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ADC_CLK1 = 0;
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Delay(1);
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}
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ADC_CLK1 = 1;//46
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ADC_DT1 = 1 ;
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Delay(1);
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ADC_CLK1 = 0;
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Delay(1);
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return 1;
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}
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//////////////读芯片输出数据
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long Read_CS1237_1(void)
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{
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uchar i;
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unsigned long dat = 0;//读到的数据
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uint count_i = 0;//溢出计时器
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long temp;
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// ADC_DT1_OUT();
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// ADC_DT1 = 1;
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ADC_DT1_IN();
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ADC_CLK1 = 0;
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while(ADC_DT1==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT1_OUT();
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ADC_CLK1 = 1;
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ADC_DT1 = 1;
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return 0;
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}
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}
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dat = 0;
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for(i=0;i<24;i++)
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{
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ADC_CLK1 = 1;
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Delay(1);
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dat<<=1;
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if(ADC_DT1==1)
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dat++;
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ADC_CLK1 = 0;
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Delay(1);
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}
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for(i=0;i<3;i++)//接着前面24个时钟后等3个时钟，DOUT会主动拉高1次
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{
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ADC_CLK1=1;
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Delay(1);
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ADC_CLK1=0;
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Delay(1);
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}
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ADC_DT1_OUT();
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ADC_DT1=1;
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Delay(1);
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ADC_DT1_IN();
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if(dat &0x00800000)//24位补码转32位，负数需要按位取反(除符号位)，再+1转源码后，填充符号位
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{
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temp = -(((~dat)&0x007FFFFF)+1);
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}
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else
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temp = dat;
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return temp;
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}
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//////////////读芯片配置数据
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uchar Read_Config_1(void)
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{
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uchar i;
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uchar dat = 0;//读到的数据
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uint count_i = 0;//超时溢出计时器
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ADC_DT1_OUT();
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ADC_DT1 = 1;
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ADC_DT1_IN();
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ADC_CLK1 = 0;
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// UART_SendByte(0x22);
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while(ADC_DT1 ==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT1_OUT();
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ADC_CLK1 = 1;
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ADC_DT1 = 1;
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return 0; //超时，退出程序
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}
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}
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for(i=0;i<29;i++)//1-29
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{
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ADC_CLK1=1;
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Delay(1);
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ADC_CLK1=0;
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Delay(1);
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}
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ADC_DT1_OUT();
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/////////////////30-36读配置寄存器命令7bit 0X56
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=1;ADC_CLK1=0;Delay(1);
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ADC_CLK1 = 1;Delay(1);ADC_DT1=0;ADC_CLK1=0;Delay(1);
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/////////////////37切换方向
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ADC_CLK1 = 1;
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Delay(1);
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ADC_DT1_IN();
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ADC_CLK1 = 0;
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Delay(1);
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dat = 0;
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for(i=0;i<8;i++)/////////38-45,读寄存器配置
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{
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ADC_CLK1 = 1;
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Delay(1);
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ADC_CLK1 = 0;
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Delay(1);
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dat<<=1;
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if(ADC_DT1==1)
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dat++;
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}
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ADC_CLK1 = 1;//46
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Delay(1);
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ADC_DT1_OUT();
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ADC_DT1=1;
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ADC_CLK1 = 0;
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Delay(1);
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return dat;
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}
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//////////////初始化CS1237芯片，先拉高clk进入PowerDown状态
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void CS1237_Init_2(void)
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{
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ADC_DT2_OUT();
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ADC_DT2 = 1;
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ADC_CLK2 = 1;
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}
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//////////////配置CS1237芯片
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uchar CS1237_Config_2(void)
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{
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uchar i ;
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uchar dat ;
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uint count_i = 0;
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dat =0x0c;//芯片地配置 内部REF 输出40HZ PGA=128 通道A 0X1C
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// ADC_DT2_OUT();
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// ADC_DT2 = 1;
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ADC_DT2_IN();
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ADC_CLK2 = 0;
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// UART_SendByte(0x22);
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while(ADC_DT2 ==1)
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{
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Delay1ms();
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count_i++;
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if(count_i>350)
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{
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ADC_DT2_OUT();
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ADC_CLK2 = 1;
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ADC_DT2 = 1;
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return 0; //超时，退出程序
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}
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}
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for(i=0;i<29;i++)//1-29
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{
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ADC_CLK2=1;
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Delay(1);
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ADC_CLK2=0;
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Delay(1);
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}
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ADC_DT2_OUT();
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/////////////////30-36写配置寄存器命令7bit 0X65
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ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
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ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
/////////////////37切换方向
|
||
ADC_CLK2 = 1;
|
||
Delay(1);
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
/////////////////38-45 写8位数据，配置参数
|
||
for(i=0;i<8;i++)
|
||
{
|
||
ADC_CLK2 = 1;
|
||
Delay(1);
|
||
if(dat&0x80)
|
||
ADC_DT2=1;
|
||
else
|
||
ADC_DT2=0;
|
||
dat<<=1;
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
}
|
||
ADC_CLK2 = 1;//46
|
||
ADC_DT2 = 1 ;
|
||
Delay(1);
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
return 1;
|
||
}
|
||
|
||
//////////////读芯片输出数据
|
||
long Read_CS1237_2(void)
|
||
{
|
||
uchar i;
|
||
unsigned long dat = 0;//读到的数据
|
||
uint count_i = 0;//溢出计时器
|
||
long temp;
|
||
|
||
// ADC_DT2_OUT();
|
||
// ADC_DT2 = 1;
|
||
ADC_DT2_IN();
|
||
ADC_CLK2 = 0;
|
||
while(ADC_DT2==1)
|
||
{
|
||
Delay1ms();
|
||
count_i++;
|
||
if(count_i>350)
|
||
{
|
||
ADC_DT2_OUT();
|
||
ADC_CLK2 = 1;
|
||
ADC_DT2 = 1;
|
||
return 0;
|
||
}
|
||
}
|
||
dat = 0;
|
||
for(i=0;i<24;i++)
|
||
{
|
||
ADC_CLK2 = 1;
|
||
Delay(1);
|
||
dat<<=1;
|
||
if(ADC_DT2==1)
|
||
dat++;
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
}
|
||
for(i=0;i<3;i++)//接着前面24个时钟后等3个时钟，DOUT会主动拉高1次
|
||
{
|
||
ADC_CLK2=1;
|
||
Delay(1);
|
||
ADC_CLK2=0;
|
||
Delay(1);
|
||
}
|
||
ADC_DT2_OUT();
|
||
ADC_DT2=1;
|
||
Delay(1);
|
||
ADC_DT2_IN();
|
||
|
||
if(dat &0x00800000)//24位补码转32位，负数需要按位取反(除符号位)，再+1转源码后，填充符号位
|
||
{
|
||
temp = -(((~dat)&0x007FFFFF)+1);
|
||
}
|
||
else
|
||
temp = dat;
|
||
return temp;
|
||
}
|
||
//////////////读芯片配置数据
|
||
uchar Read_Config_2(void)
|
||
{
|
||
uchar i;
|
||
uchar dat = 0;//读到的数据
|
||
uint count_i = 0;//超时溢出计时器
|
||
|
||
ADC_DT2_OUT();
|
||
ADC_DT2 = 1;
|
||
ADC_DT2_IN();
|
||
ADC_CLK2 = 0;
|
||
// UART_SendByte(0x22);
|
||
while(ADC_DT2 ==1)
|
||
{
|
||
Delay1ms();
|
||
count_i++;
|
||
if(count_i>350)
|
||
{
|
||
ADC_DT2_OUT();
|
||
ADC_CLK2 = 1;
|
||
ADC_DT2 = 1;
|
||
return 0; //超时，退出程序
|
||
}
|
||
}
|
||
|
||
for(i=0;i<29;i++)//1-29
|
||
{
|
||
ADC_CLK2=1;
|
||
Delay(1);
|
||
ADC_CLK2=0;
|
||
Delay(1);
|
||
}
|
||
ADC_DT2_OUT();
|
||
/////////////////30-36读配置寄存器命令7bit 0X56
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=1;ADC_CLK2=0;Delay(1);
|
||
ADC_CLK2 = 1;Delay(1);ADC_DT2=0;ADC_CLK2=0;Delay(1);
|
||
/////////////////37切换方向
|
||
ADC_CLK2 = 1;
|
||
Delay(1);
|
||
ADC_DT2_IN();
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
|
||
dat = 0;
|
||
for(i=0;i<8;i++)/////////38-45,读寄存器配置
|
||
{
|
||
ADC_CLK2 = 1;
|
||
Delay(1);
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
dat<<=1;
|
||
if(ADC_DT2==1)
|
||
dat++;
|
||
}
|
||
ADC_CLK2 = 1;//46
|
||
Delay(1);
|
||
ADC_DT2_OUT();
|
||
ADC_DT2=1;
|
||
ADC_CLK2 = 0;
|
||
Delay(1);
|
||
return dat;
|
||
}
|
||
|
||
|
||
//////////////初始化CS1237芯片，先拉高clk进入PowerDown状态
|
||
void CS1237_Init_3(void)
|
||
{
|
||
ADC_DT3_OUT();
|
||
ADC_DT3 = 1;
|
||
ADC_CLK3 = 1;
|
||
}
|
||
//////////////配置CS1237芯片
|
||
uchar CS1237_Config_3(void)
|
||
{
|
||
uchar i ;
|
||
uchar dat ;
|
||
uint count_i = 0;
|
||
|
||
dat =0x0c;//芯片地配置 内部REF 输出40HZ PGA=128 通道A 0X1C
|
||
ADC_DT3_OUT();
|
||
ADC_DT3 = 1;
|
||
ADC_DT3_IN();
|
||
ADC_CLK3 = 0;
|
||
// UART_SendByte(0x22);
|
||
while(ADC_DT3 ==1)
|
||
{
|
||
Delay1ms();
|
||
count_i++;
|
||
if(count_i>350)
|
||
{
|
||
ADC_DT3_OUT();
|
||
ADC_CLK3 = 1;
|
||
ADC_DT3 = 1;
|
||
return 0; //超时，退出程序
|
||
}
|
||
}
|
||
for(i=0;i<29;i++)//1-29
|
||
{
|
||
ADC_CLK3=1;
|
||
Delay(1);
|
||
ADC_CLK3=0;
|
||
Delay(1);
|
||
}
|
||
ADC_DT3_OUT();
|
||
/////////////////30-36写配置寄存器命令7bit 0X65
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
/////////////////37切换方向
|
||
ADC_CLK3 = 1;
|
||
Delay(1);
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
/////////////////38-45 写8位数据，配置参数
|
||
for(i=0;i<8;i++)
|
||
{
|
||
ADC_CLK3 = 1;
|
||
Delay(1);
|
||
if(dat&0x80)
|
||
ADC_DT3=1;
|
||
else
|
||
ADC_DT3=0;
|
||
dat<<=1;
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
}
|
||
ADC_CLK3 = 1;//46
|
||
ADC_DT3 = 1 ;
|
||
Delay(1);
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
return 1;
|
||
}
|
||
|
||
//////////////读芯片输出数据
|
||
long Read_CS1237_3(void)
|
||
{
|
||
uchar i;
|
||
unsigned long dat = 0;//读到的数据
|
||
uint count_i = 0;//溢出计时器
|
||
long temp;
|
||
|
||
ADC_DT3_OUT();
|
||
ADC_DT3 = 1;
|
||
ADC_DT3_IN();
|
||
ADC_CLK3 = 0;
|
||
while(ADC_DT3==1)
|
||
{
|
||
Delay1ms();
|
||
count_i++;
|
||
if(count_i>350)
|
||
{
|
||
ADC_DT3_OUT();
|
||
ADC_CLK3 = 1;
|
||
ADC_DT3 = 1;
|
||
return 0;
|
||
}
|
||
}
|
||
dat = 0;
|
||
for(i=0;i<24;i++)
|
||
{
|
||
ADC_CLK3 = 1;
|
||
Delay(1);
|
||
dat<<=1;
|
||
if(ADC_DT3==1)
|
||
dat++;
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
}
|
||
for(i=0;i<3;i++)//接着前面24个时钟后等3个时钟，DOUT会主动拉高1次
|
||
{
|
||
ADC_CLK3=1;
|
||
Delay(1);
|
||
ADC_CLK3=0;
|
||
Delay(1);
|
||
}
|
||
ADC_DT3_OUT();
|
||
ADC_DT3=1;
|
||
Delay(1);
|
||
ADC_DT3_IN();
|
||
|
||
if(dat &0x00800000)//24位补码转32位，负数需要按位取反(除符号位)，再+1转源码后，填充符号位
|
||
{
|
||
temp = -(((~dat)&0x007FFFFF)+1);
|
||
}
|
||
else
|
||
temp = dat;
|
||
return temp;
|
||
}
|
||
//////////////读芯片配置数据
|
||
uchar Read_Config_3(void)
|
||
{
|
||
uchar i;
|
||
uchar dat = 0;//读到的数据
|
||
uint count_i = 0;//超时溢出计时器
|
||
|
||
// ADC_DT3_OUT();
|
||
// ADC_DT3 = 1;
|
||
ADC_DT3_IN();
|
||
ADC_CLK3 = 0;
|
||
// UART_SendByte(0x22);
|
||
while(ADC_DT3 ==1)
|
||
{
|
||
Delay1ms();
|
||
count_i++;
|
||
if(count_i>350)
|
||
{
|
||
ADC_DT3_OUT();
|
||
ADC_CLK3 = 1;
|
||
ADC_DT3 = 1;
|
||
return 0; //超时，退出程序
|
||
}
|
||
}
|
||
|
||
for(i=0;i<29;i++)//1-29
|
||
{
|
||
ADC_CLK3=1;
|
||
Delay(1);
|
||
ADC_CLK3=0;
|
||
Delay(1);
|
||
}
|
||
ADC_DT3_OUT();
|
||
/////////////////30-36读配置寄存器命令7bit 0X56
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=1;ADC_CLK3=0;Delay(1);
|
||
ADC_CLK3 = 1;Delay(1);ADC_DT3=0;ADC_CLK3=0;Delay(1);
|
||
/////////////////37切换方向
|
||
ADC_CLK3 = 1;
|
||
Delay(1);
|
||
ADC_DT3_IN();
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
|
||
dat = 0;
|
||
for(i=0;i<8;i++)/////////38-45,读寄存器配置
|
||
{
|
||
ADC_CLK3 = 1;
|
||
Delay(1);
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
dat<<=1;
|
||
if(ADC_DT3==1)
|
||
dat++;
|
||
}
|
||
ADC_CLK3 = 1;//46
|
||
Delay(1);
|
||
ADC_DT3_OUT();
|
||
ADC_DT3=1;
|
||
ADC_CLK3 = 0;
|
||
Delay(1);
|
||
return dat;
|
||
} |