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標(biāo)題:
MCP3208,ADC程序設(shè)計(jì)
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作者:
懶羊羊436
時(shí)間:
2017-9-11 18:55
標(biāo)題:
MCP3208,ADC程序設(shè)計(jì)
MCP3208,ADC程序設(shè)計(jì)
下載:
MCP3204.zip
(715 Bytes, 下載次數(shù): 61)
2017-9-11 18:55 上傳
點(diǎn)擊文件名下載附件
c程序
下載積分: 黑幣 -5
#include "config_Economy.h"
#include "..\APP\config.h"
#include "typedef.h"
#include "extern.h"
void adclkoutvalue(unsigned char bits)
{
if(bits==1)
FIO1SET =0x80000000;
else
FIO1CLR =0x80000000;
}
void adcsvalue(unsigned char bits)
{
if(bits==1)
FIO0SET =1<<27;
else FIO0CLR =1<<27;
}
void adconfig(unsigned char bits)
{
if(bits==1)
FIO0SET |=1<<28;
else FIO0CLR =1<<28;
}
unsigned char add(void)
{
if((FIO1PIN&(1<<30))>0) return 1;
else return 0;
}
void adclk_out(void)
{
FIO1DIR |=0x80000000; //輸出
}
void add_out(void)
{
FIO1DIR &=~(1<<30); //輸入
}
void add_config(void)
{
FIO0DIR |=1<<28; //輸出
}
void ad_cs(void)
{
FIO0DIR |=1<<27; //輸出
}
unsigned int read_mcp3204(unsigned char channel)
{
unsigned int value;
unsigned int i;
unsigned char start=0x18;
adcsvalue(1);
adclkoutvalue(0);
adconfig(0);
OSTimeDlyHMSM(0,0,0,1);
start |= channel;
adcsvalue(0);
OSTimeDlyHMSM(0,0,0,1);
for(i=0;i<2;i++)
{
adclkoutvalue(0);
adconfig(0);
OSTimeDlyHMSM(0,0,0,1);
adclkoutvalue(1);
OSTimeDlyHMSM(0,0,0,1);
}
for(i=0;i<8;i++)
{
adclkoutvalue(0);
if(((1<<(7-i))&start)>0) adconfig(1);
else adconfig(0);
OSTimeDlyHMSM(0,0,0,1);
adclkoutvalue(1);
OSTimeDlyHMSM(0,0,0,1);
}
for(i=0;i<2;i++)
{
adclkoutvalue(0);
adconfig(0);
OSTimeDlyHMSM(0,0,0,1);
adclkoutvalue(1);
OSTimeDlyHMSM(0,0,0,1);
}
value = 0;
for(i=0;i<12;i++)
{
adclkoutvalue(0);
OSTimeDlyHMSM(0,0,0,1);
adclkoutvalue(1);
OSTimeDlyHMSM(0,0,0,1);
value = value<<1;
if(add()==1)
{
value++;
}
}
adcsvalue(1);
adclkoutvalue(0);
adconfig(0);
return(value);
}
void MCP3204_init(void)
{
SCS |= 0x01;
adclk_out();
add_out();
add_config();
ad_cs();
adcsvalue(1);
adclkoutvalue(0);
adconfig(0);
}
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