STM32F4开发的HLW8032串口发送数据，单片机接收数据并且串...

ID:499190 · 发表于 2019-10-11 08:54

HLW8032测量代码

实测了两组数据

第一组

第二组

测小的电压时，数据会比较准，测大的电压时，误差会比较大，这不是代码的问题，应该是板子或者芯片的原因。

单片机源程序如下:

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "key.h"
#include "dma.h"
#include "oled.h"
#include "stdio.h"
////////////////////////////////////////////////////////
//因为电压电流功率那个系数是根据电路所用器件参数算出来的，所以不同板子参数
//器件参数误差也不同，可以根据实际情况更改参数，校准电压电流值等等
//注意：串口连接的时候一定要共地，要不然接收到的电压电流值都会是0，一开始没注意到这个问题，以为是程序错了
//这里用到了F4串口1和串口6，串口1(波特率为9600)用来接收HLW8032传输过来的数据
//串口二（波特率为115200）用来发送接收到的数据到串口
int main(void)
{
uint32_t VpR = 0; // 电压参数寄存器
uint32_t VR = 0; // 电压寄存器
uint32_t CpR = 0; // 电流参数寄存器
uint32_t CR = 0; // 电流寄存器
uint32_t PpR = 0; // 电流参数寄存器
uint32_t PR = 0; // 电流寄存器
float VoltValue = 0.0; //电压值
double IcurrentValue = 0.0; //电流值
float PowerValue = 0.0; //功率值
/**********相关外设函数的初始化*****************************/
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
usart_x_Init(); //初始化串口
delay_init(168); //初始化延时函数
LED_Init(); //初始化LED
KEY_Init(); //按键初始化
OLED_Init(); //OLED初始化
/******************OLED初始显示**************************/
OLED_ShowCHinese(12,0,4,1); //电
OLED_ShowCHinese(24,0,5,1); //压
OLED_ShowCHinese(36,0,10,1); //:
OLED_ShowString(108,0,"V",12); // V
OLED_ShowCHinese(12,12,6,1); //电
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();//更新显示到OLED
printf("Hello!\r\n");
while(1)
{
LED0=!LED0; //程序运行标志
/************串口1接收数据，串口6打印数据****************************************/
if((Rx_InfoLen!=0 ) && ((ReceiveInfo[0] == 0xF2) || (ReceiveInfo[0] == 0x55))&&(ReceiveInfo[1] == 0x5A)) //判断数据是否有效，是否存在和被检测到
{
printf("\r\n");
printf("State REG is %X\r\n",ReceiveInfo[0]); //打印状态寄存器的值
printf("Check REG is %X\r\n",ReceiveInfo[1]); //打印检测寄存器的值
printf("Voltage parameter REG is %X %X %X \r\n",ReceiveInfo[2],ReceiveInfo[3],ReceiveInfo[4]); //电压参数寄存器
printf("Voltage REG is %X %X %X \r\n",ReceiveInfo[5],ReceiveInfo[6],ReceiveInfo[7]); //电压寄存器
VpR = (ReceiveInfo[2]<<16) + (ReceiveInfo[3]<<8) + ReceiveInfo[4]; //把寄存器的值移位相加起来
VR = (ReceiveInfo[5]<<16) + (ReceiveInfo[6]<<8) + ReceiveInfo[7];
VoltValue = (VpR/VR)*1.88 ; //根据公式计算电压
printf("VoltValue is %f \r\n",VoltValue); //打印电压值到串口助手
printf("Current parameter REG is %X %X %X \r\n",ReceiveInfo[8],ReceiveInfo[9],ReceiveInfo[10]); //电流参数寄存器
printf("Current REG is %X %X %X \r\n",ReceiveInfo[11],ReceiveInfo[12],ReceiveInfo[13]); //电流寄存器
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; //根据公式计算电流
printf("IcurrentValue is %lf \r\n",IcurrentValue); //打印电流的值到串口助手
printf("Power parameter REG is %X %X %X \r\n",ReceiveInfo[14],ReceiveInfo[15],ReceiveInfo[16]); //功率参数寄存器
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; //根据公式计算功率
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]); //数据更新寄存器
printf("PF REG is %X %X\r\n",ReceiveInfo[21],ReceiveInfo[22]); //电能脉冲个数
printf("CheckSumREG is %X\r\n",ReceiveInfo[23]); //检验和
}
memset(ReceiveInfo,0x00,Rx_InfoLen); //数据处理结束后，将数据存储数组清零
Rx_InfoLen = 0; //数据长度清零
/************OLED显示电流电压功率****************************************/
OLED_ShowFloatNum_12(48,0,VoltValue,5,12); //显示电压
OLED_ShowFloatNum_12(48,12,IcurrentValue,5,12); //显示电流
OLED_ShowFloatNum_12(48,24,PowerValue,5,12); //显示功率
OLED_Refresh_Gram(); // 更新到OELD
}
}