STM32F4開發的HLW8032串口發送數據，單片機接收數據并且串...

ID:499190 · 發表于 2019-10-11 08:54

HLW8032測量代碼

實測了兩組數據

第一組

第二組

測小的電壓時，數據會比較準，測大的電壓時，誤差會比較大，這不是代碼的問題，應該是板子或者芯片的原因。

單片機源程序如下:

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "key.h"
#include "dma.h"
#include "oled.h"
#include "stdio.h"
////////////////////////////////////////////////////////
//因為電壓電流功率那個系數是根據電路所用器件參數算出來的，所以不同板子參數
//器件參數誤差也不同，可以根據實際情況更改參數，校準電壓電流值等等
//注意：串口連接的時候一定要共地，要不然接收到的電壓電流值都會是0，一開始沒注意到這個問題，以為是程序錯了
//這里用到了F4串口1和串口6，串口1(波特率為9600)用來接收HLW8032傳輸過來的數據
//串口二（波特率為115200）用來發送接收到的數據到串口
int main(void)
{
uint32_t VpR = 0; // 電壓參數寄存器
uint32_t VR = 0; // 電壓寄存器
uint32_t CpR = 0; // 電流參數寄存器
uint32_t CR = 0; // 電流寄存器
uint32_t PpR = 0; // 電流參數寄存器
uint32_t PR = 0; // 電流寄存器
float VoltValue = 0.0; //電壓值
double IcurrentValue = 0.0; //電流值
float PowerValue = 0.0; //功率值
/**********相關外設函數的初始化*****************************/
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//設置系統中斷優先級分組2
usart_x_Init(); //初始化串口
delay_init(168); //初始化延時函數
LED_Init(); //初始化LED
KEY_Init(); //按鍵初始化
OLED_Init(); //OLED初始化
/******************OLED初始顯示**************************/
OLED_ShowCHinese(12,0,4,1); //電
OLED_ShowCHinese(24,0,5,1); //壓
OLED_ShowCHinese(36,0,10,1); //:
OLED_ShowString(108,0,"V",12); // V
OLED_ShowCHinese(12,12,6,1); //電
OLED_ShowCHinese(24,12,7,1); //流
OLED_ShowCHinese(36,12,10,1); //:
OLED_ShowString(108,12,"A",12); // A
OLED_ShowCHinese(12,24,8,1); //功
OLED_ShowCHinese(24,24,9,1); //率
OLED_ShowCHinese(36,24,10,1); //:
OLED_ShowString(108,24,"W",12); // W
OLED_Refresh_Gram();//更新顯示到OLED
printf("Hello!\r\n");
while(1)
{
LED0=!LED0; //程序運行標志
/************串口1接收數據，串口6打印數據****************************************/
if((Rx_InfoLen!=0 ) && ((ReceiveInfo[0] == 0xF2) || (ReceiveInfo[0] == 0x55))&&(ReceiveInfo[1] == 0x5A)) //判斷數據是否有效，是否存在和被檢測到
{
printf("\r\n");
printf("State REG is %X\r\n",ReceiveInfo[0]); //打印狀態寄存器的值
printf("Check REG is %X\r\n",ReceiveInfo[1]); //打印檢測寄存器的值
printf("Voltage parameter REG is %X %X %X \r\n",ReceiveInfo[2],ReceiveInfo[3],ReceiveInfo[4]); //電壓參數寄存器
printf("Voltage REG is %X %X %X \r\n",ReceiveInfo[5],ReceiveInfo[6],ReceiveInfo[7]); //電壓寄存器
VpR = (ReceiveInfo[2]<<16) + (ReceiveInfo[3]<<8) + ReceiveInfo[4]; //把寄存器的值移位相加起來
VR = (ReceiveInfo[5]<<16) + (ReceiveInfo[6]<<8) + ReceiveInfo[7];
VoltValue = (VpR/VR)*1.88 ; //根據公式計算電壓
printf("VoltValue is %f \r\n",VoltValue); //打印電壓值到串口助手
printf("Current parameter REG is %X %X %X \r\n",ReceiveInfo[8],ReceiveInfo[9],ReceiveInfo[10]); //電流參數寄存器
printf("Current REG is %X %X %X \r\n",ReceiveInfo[11],ReceiveInfo[12],ReceiveInfo[13]); //電流寄存器
CpR =(ReceiveInfo[8]<<16) + (ReceiveInfo[9]<<8) + ReceiveInfo[10];
CR = (ReceiveInfo[11]<<16) + (ReceiveInfo[12]<<8) + ReceiveInfo[13];
IcurrentValue = ((float)CpR/(float)CR)*0.1; //根據公式計算電流
printf("IcurrentValue is %lf \r\n",IcurrentValue); //打印電流的值到串口助手
printf("Power parameter REG is %X %X %X \r\n",ReceiveInfo[14],ReceiveInfo[15],ReceiveInfo[16]); //功率參數寄存器
printf("Power REG is %X %X %X \r\n",ReceiveInfo[17],ReceiveInfo[18],ReceiveInfo[19]); //功率寄存器
PpR = (ReceiveInfo[14]<<16) + (ReceiveInfo[15]<<8) + ReceiveInfo[16];
PR = (ReceiveInfo[17]<<16) + (ReceiveInfo[18]<<8) + ReceiveInfo[19];
PowerValue = (PpR/PR)*1.6*0.1; //根據公式計算功率
printf("PowerValueis %f \r\n",PowerValue); //打印功率的值到串口助手
printf("Data Updata REG is %X\r\n",ReceiveInfo[20]); //數據更新寄存器
printf("PF REG is %X %X\r\n",ReceiveInfo[21],ReceiveInfo[22]); //電能脈沖個數
printf("CheckSumREG is %X\r\n",ReceiveInfo[23]); //檢驗和
}
memset(ReceiveInfo,0x00,Rx_InfoLen); //數據處理結束后，將數據存儲數組清零
Rx_InfoLen = 0; //數據長度清零
/************OLED顯示電流電壓功率****************************************/
OLED_ShowFloatNum_12(48,0,VoltValue,5,12); //顯示電壓
OLED_ShowFloatNum_12(48,12,IcurrentValue,5,12); //顯示電流
OLED_ShowFloatNum_12(48,24,PowerValue,5,12); //顯示功率
OLED_Refresh_Gram(); // 更新到OELD
}
}