PADAUK应广单片机PMS132 ADC电压表制作附源程序

ID:974778 · 发表于 2022-2-18 14:21

使用PADAUK 应广PMS132单片机制作的简易电压表，测量范围在0-5V。使用ADC做外电压检测并且将ADC数值显示在8位数码管的高4位，在8位数码管的低4位显示电压值。下面是仿真器仿真和代码，详细请参考附件。
制作出来的实物图如下：
51hei图片20220218141805.jpg

单片机源程序如下:

#include "extern.h"
#define data_1 pb
#define duan_B pa.7
#define wei_A pa.6
byte wei,duan,b;
word Reload_T16;
word Voltage_data;
word data;
word time;
word num;
dword AD_Val_Sum;
word AD_average_Val;
void weiTable(void)
{
_Pcadd
{
ret 0xfe;//第一位 1111 1110
ret 0xfd;//第二位 1111 1101
ret 0xfb;//3 1111 1011
ret 0xf7;//4 1111 0111
ret 0xef;//5 1110 1111
ret 0xdf;//6 1101 1111
ret 0xbf;//7 1011 1111
ret 0x7f;//8 0111 1111
}
}
void duanTable(void)//8位共阴极数码管段码
{ A+=1;
_Pcadd
{
ret 0x3f;//0 //无小数点
ret 0x06;//1
ret 0x5b;//2
ret 0x4f;//3
ret 0x66;//4
ret 0x6d;//5
ret 0x7d;//6
ret 0x07;//7
ret 0x7f;//8
ret 0x6f;//9
ret 0xbf;//0 //带小数点
ret 0x86;//1
ret 0xdb;//2
ret 0xcf;//3
ret 0xe6;//4
ret 0xed;//5
ret 0xfd;//6
ret 0x87;//7
ret 0xff;//8
ret 0xef;//9
ret 0x40;//-
}
}
void LedDis(void)
{
data_1 = 0x00; //去重影
duan_B = 1;
duan_B = 0;
A = wei; //取位码
weiTable();
data_1 = A;
wei_A = 1;
wei_A = 0;
A = duan; //取段码
duanTable();
data_1 = A;
duan_B = 1;
duan_B = 0;
}
void T16init(void)
{
$ T16M IHRC,/16,bit15;
reload_T16 = 32768 - 1000; //1ms
stt16 Reload_T16;
INTEN.T16 = 1;
INTRQ.T16 = 0;
}
void TM2_PWM(void)
{
tm2ct = 0; //计数寄存器，通过每次进中断修改该值来获得精准的时间
tm2b = 9; //上限寄存器，计数值超出上限寄存器的设定值时会产生中断；
$ TM2C SYSCLK,Disable,PWM; //时钟源选择，输出脚选择，模式选择PWM模式；
$ TM2S 8BIT,/4,/25;
//计算公式为 1/{时钟源*2/[2*(TM2B+1)*预分频*分频]}
// = 1/(1M*2/(2*TM2B+1)*4*25) = 1/(1000000*2/(2*(49+1)*4*25)) = 0.005s
INTEN.TM2 = 1;
INTRQ.TM2 = 0;
}
void ADC_init(void)
{
//注：选择的通道需设置为输入，无上拉电阻，停用数字输入使能；
PAC.4 = 0;
PAPH.4 = 0;
PADIER = 0b1110_1001;
$ ADCC Enable,PA4; //启用ADC
$ ADCM 12bit,/2;
$ ADCRGC VDD; //选择ADC输入信号的参考电压为VDD
.delay 400;
}
void ADC_data(void)
{
//开始ADC转换
AD_START = 1; //开始ADC转换
while(!AD_DONE) //等待ADC转换结果
NULL;
//当AD_DONE高电位时读取ADC结果
data$0 = ADCRL; //将ADC的值赋给data
data$1 = ADCRH;
data = data >> 4;
}
DWORD mul_t4;
WORD mul_x2;
WORD mul_y2;
void Word_Mul_Word (void)
{ // mul_t4[D] = mul_x2[W] * mul_y2[W]
mul_t4$3 = 0;
mul_t4$2 = 0;
BYTE cnt;
cnt = 16;
do
{
mul_x2 >>= 1;
if (CF)
{
mul_t4 += (mul_y2 << 16);
}
mul_t4 >>>= 1;
} while (--cnt);
}
DWORD div_src4;
WORD div_val2, div_res2;
void DWord_Div_Word (void)
{ // div_src4[D] / div_val2[W] = div_src4[D] * div_val2[W] + div_res2[W]
BYTE div_cnt, div_tmp;
div_cnt = 0;
div_res2 = 0;
do
{
div_src4 <<= 1;
div_res2 <<<= 1;
div_tmp <<<= 1;
div_cnt++;
A = (div_res2 - div_val2) >> 8;
if (div_tmp.0 || ! CF)
{
div_res2$1 = A;
div_res2$0 -= div_val2$0;
div_src4.0 = 1;
}
} while (! div_cnt.5);
}
WORD div_src2;
BYTE div_val, div_res;
void Word_Div_Byte (void)
{ // div_src2[W] / div_val[B] = div_src2[W] * div_val[B] + div_res[B]
BYTE div_cnt, div_tmp;
div_cnt = 0;
div_res = 0;
do
{
div_src2 <<= 1;
slc div_res;
slc div_tmp;
div_cnt++;
A = div_res - div_val;
if (div_tmp.0 || !CF)
{
div_res = A;
div_src2.0 = 1;
}
} while (! div_cnt.4);
}
BYTE div_src3, div_val3, div_res3;
void Byte_Div_Byte (void)
{ // div_src[B] / div_val[B] = div_src[B] * div_val[B] + div_res[B]
BYTE div_cnt;
div_cnt = 0;
div_res3 = 0;
A = -div_val3;
div_src3 <<= 1;
do
{
slc div_res3;
div_cnt++;
div_res3 += A;
if (!CF) div_res3 -= A;
div_src3 <<<= 1;
} while (! div_cnt.3);
}
WORD div_src_adc1;
WORD div_val_adc1, div_res_adc1;
static void Word_adc1_Div_Word_adc1 (void)
{ // div_src2[W] / div_val2[W] = div_src2[W] * div_val2[W] + div_res2[W]
BYTE div_cnt;
div_cnt = 0;
div_res_adc1 = 0;
do
{
div_src_adc1 <<= 1;
div_res_adc1 <<<= 1;
div_cnt++;
A = (div_res_adc1 - div_val_adc1) >> 8;
if (! CF)
{
div_res_adc1$1 = A;
div_res_adc1$0 -= div_val_adc1$0;
div_src_adc1.0 = 1;
}
} while (! div_cnt.4);
}
WORD div_src_adc2;
WORD div_val_adc2, div_res_adc2;
static void Word_adc2_Div_Word_adc2 (void)
{ // div_src2[W] / div_val2[W] = div_src2[W] * div_val2[W] + div_res2[W]
BYTE div_cnt;
div_cnt = 0;
div_res_adc2 = 0;
do
{
div_src_adc2 <<= 1;
div_res_adc2 <<<= 1;
div_cnt++;
A = (div_res_adc2 - div_val_adc2) >> 8;
if (! CF)
{
div_res_adc2$1 = A;
div_res_adc2$0 -= div_val_adc2$0;
div_src_adc2.0 = 1;
}
} while (! div_cnt.4);
}
BYTE div_src_adc3, div_val_adc3, div_res_adc3;
void Byte_adc3_Div_Byte_adc3 (void)
{ // div_src[B] / div_val[B] = div_src[B] * div_val[B] + div_res[B]
BYTE div_cnt;
div_cnt = 0;
div_res_adc3 = 0;
A = -div_val_adc3;
div_src_adc3 <<= 1;
do
{
slc div_res_adc3;
div_cnt++;
div_res_adc3 += A;
if (!CF) div_res_adc3 -= A;
div_src_adc3 <<<= 1;
} while (! div_cnt.3);
}
void data_sum(void)
{
num = 128;
AD_Val_Sum = 0;
while(num--)
{
// Get_AD_Val();
AD_Val_Sum += data;
.delay 1000; //1ms
}
AD_average_Val = AD_Val_Sum>>7; //除以128
}
void ADC_calcu(void)//数据计算
{
mul_x2 = AD_average_Val;
mul_y2 = 500;//参考电压的100倍
Word_Mul_Word();
div_src4 = mul_t4;
div_val2 = 0xFFF;//分辨率12为0xFFF
DWord_Div_Word();
Voltage_data = div_src4;//测得的电压是实际电压100倍
nop;
}
void FPPA0 (void)
{
.ADJUST_IC SYSCLK=IHRC/16, IHRC=16MHz, VDD=5V;
ADC_init();
T16init();
TM2_PWM();
pa=0b1110_1001;
pac=0b1110_1001;
pb=0xff;
pbc=0xff;
ENGINT;
b=0;
time=0;
div_res3=0;
div_src3=0;
div_src2=0;
div_res_adc3=0;
div_src_adc3=0;
div_src_adc2=0;
div_src_adc1=0;
AD_average_Val=0;
data=0;
duan=0;
wei=0;
while (1)
{
data_sum();
ADC_calcu();
}
}
void Interrupt (void)
{
pushaf;
if (Intrq.T16)
{
stt16 Reload_T16;
b++;
if(b>8)
{b=0;}
LedDis();
//逐位扫描显示
switch(b)
{
case 0:
duan=div_res3; //电压小数第二位
wei=8;
break;
case 1:
duan=div_src3; //电压小数第一位
wei=7;
break;
case 2:
duan=div_src2+10; //电压个数位
wei=6;
break;
case 3:
duan=20; //-
wei=5;
break;
case 4:
duan=div_res_adc3; //adc个位
wei=4;
break;
case 5:
duan=div_src_adc3; //adc十位
wei=3;
break;
case 6:
duan=div_src_adc2; //adc百位
wei=2;
break;
case 7:
duan=div_src_adc1; //adc千位
wei=1;
break;
default:break;
}
Intrq.T16 = 0;
//...
}
if(Intrq.TM2)
{
tm2ct = 0; //定周期模式，可以省略
ADC_data();
time++;
if(time>300)
{
time=0;
//取ADC值
div_src_adc1=AD_average_Val;
div_val_adc1=1000;
Word_adc1_Div_Word_adc1 ();
div_src_adc2=div_res_adc1;
div_val_adc2=100;
Word_adc2_Div_Word_adc2 ();
div_src_adc3=div_res_adc2;
div_val_adc3=10;
Byte_adc3_Div_Byte_adc3 ();
//取电压值
div_src2=Voltage_data; //取百位
div_val=100;
Word_Div_Byte ();
div_src3=div_res; //用取百位后的余数取个位，十位
div_val3=10;
Byte_Div_Byte ();
}
Intrq.TM2 = 0;
}
popaf;
}

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代码下载:

PMS132电压表.rar (18.42 KB, 下载次数: 97)

ID:262 · 发表于 2022-2-23 02:08

用的芯片自带ADC吗?

ID:974778 · 发表于 2022-3-26 15:18

heicad 发表于 2022-2-23 02:08
用的芯片自带ADC吗?

是的，自带12通道的12位ADC

ID:915590 · 发表于 2022-8-3 18:03

有原理图吗？

ID:323213 · 发表于 2023-11-13 22:23

楼主学习学习可以改用5管脚188;2353数码管吗?

ID:1102110 · 发表于 2023-12-2 10:11

electmo 发表于 2023-11-13 22:23
楼主学习学习可以改用5管脚188;2353数码管吗?

可以用188数码管，csdn有相关的资料你可以搜一下

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PADAUK应广单片机PMS132 ADC电压表制作 附源程序

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PADAUK应广单片机PMS132 ADC电压表制作附源程序