INA226和ads1115分别用2个软件iic函数

include/softiic.h

@@ -9,6 +9,8 @@ bool  SOFTiic_init();
 // I2C 起始信号
 void i2c_start();
 
+void i2c_delay();
+
 // I2C 停止信号
 void i2c_stop();
 

src/mqtt.c

@@ -89,7 +89,7 @@ void heartbeat_send() {//心跳发送格式*5/2
     char current_str[20];  // 足够存储转换后的字符串的缓冲区
     sprintf(current_str, "%.2f", current); 
    
-    if(gPwmCount >= 5) alarm_control(voltage);//判断电压警报,在不动时候才判断
+    alarm_control(voltage);//判断电压警报,在不动时候才判断
     
     /*读取程序版本号*/
     char *version_num = program_version();

src/softiic.c

@@ -62,7 +62,6 @@ void i2c_write_byte(uint8_t data) {
     i2c_delay();
 
     int ack = digitalRead(sda_pin);    // 0 = ACK，1 = NACK（你可以打印或设置状态变量）
-    // printf("ACK = %d\n", ack);
 
     digitalWrite(scl_pin, LOW);
     pinMode(sda_pin, OUTPUT);          // 拉回输出模式

system/sensor/INA226.c

 #include <math.h>
+#include <stdbool.h>
 #include "common.h"
 #include "INA226.h"
-float currentLSB ;
+#include "softiic.h"
 
+float currentLSB;
 
+// I2C 起始信号
+void i2c_start_ina226() {
+    digitalWrite(sda_pin, HIGH);
+    digitalWrite(scl_pin, HIGH);
+    i2c_delay();
+    digitalWrite(sda_pin, LOW);
+    i2c_delay();
+    digitalWrite(scl_pin, LOW);
+    i2c_delay();
+}
+
+// I2C 停止信号
+void i2c_stop_ina226() {
+    digitalWrite(sda_pin, LOW);
+    digitalWrite(scl_pin, LOW);
+    i2c_delay();
+    digitalWrite(scl_pin, HIGH);
+    i2c_delay();
+    digitalWrite(sda_pin, HIGH);
+    i2c_delay();
+}
+
+// I2C 发送一个字节
+void i2c_write_byte_ina226(uint8_t data1) {
+    for (int i = 7; i >= 0; i--) {
+        digitalWrite(sda_pin, (data1 >> i) & 0x01);
+        i2c_delay();
+        digitalWrite(scl_pin, HIGH);
+        i2c_delay();
+        digitalWrite(scl_pin, LOW);
+        i2c_delay();
+    }
+    // 接收 ACK
+    pinMode(sda_pin, INPUT);
+    digitalWrite(scl_pin, HIGH);
+    i2c_delay();
+    digitalWrite(scl_pin, LOW);
+    pinMode(sda_pin, OUTPUT);
+}
+
+// I2C 读取一个字节
+uint8_t i2c_read_byte_ina226(bool ack1) {
+    uint8_t data1 = 0;
+    pinMode(sda_pin, INPUT);
+    for (int i = 7; i >= 0; i--) {
+        digitalWrite(scl_pin, HIGH);
+        i2c_delay();
+        data1 |= (digitalRead(sda_pin) << i);
+        digitalWrite(scl_pin, LOW);
+        i2c_delay();
+    }
+    // 发送 ACK/NACK
+    pinMode(sda_pin, OUTPUT);
+    digitalWrite(sda_pin, ack1 ? LOW : HIGH);
+    digitalWrite(scl_pin, HIGH);
+    i2c_delay();
+    digitalWrite(scl_pin, LOW);
+    pinMode(sda_pin, INPUT);
+    return data1;
+}
 
 // 配置 INA226
 bool INA226_configure() {
-    uint16_t config = 0x4127; // 默认配置：16 次平均，1.1ms 转换时间，连续模式
-    i2c_start();
-    i2c_write_byte(INA226_ADDRESS << 1);
-    i2c_write_byte(INA226_REG_CONFIG);
-    i2c_write_byte(config >> 8);
-    i2c_write_byte(config & 0xFF);
-    i2c_stop();
+    uint16_t config = 0x4127; // 默认配置：16次平均，1.1ms 转换时间，连续模式
+    i2c_start_ina226();
+    i2c_write_byte_ina226(INA226_ADDRESS << 1);
+    i2c_write_byte_ina226(INA226_REG_CONFIG);
+    i2c_write_byte_ina226(config >> 8);
+    i2c_write_byte_ina226(config & 0xFF);
+    i2c_stop_ina226();
     return true;
 }
 
 // 校准 INA226
 bool INA226_calibrate(float rShuntValue, float iMaxExpected) {
-    
-     currentLSB = iMaxExpected/32767.0 ; // 计算电流 LSB,/INA226_REG_CALIBRATION
-
+    currentLSB = iMaxExpected / 32767.0; // 电流 LSB
     uint16_t calibrationValue = (uint16_t)(0.00512 / (currentLSB * rShuntValue));
 
-    i2c_start();
-    i2c_write_byte(INA226_ADDRESS << 1);
-    i2c_write_byte(INA226_REG_CALIBRATION);
-    i2c_write_byte(calibrationValue >> 8);
-    i2c_write_byte(calibrationValue & 0xFF);
-    i2c_stop();
+    i2c_start_ina226();
+    i2c_write_byte_ina226(INA226_ADDRESS << 1);
+    i2c_write_byte_ina226(INA226_REG_CALIBRATION);
+    i2c_write_byte_ina226(calibrationValue >> 8);
+    i2c_write_byte_ina226(calibrationValue & 0xFF);
+    i2c_stop_ina226();
     return true;
 }
 
 // 读取总线电压
 float INA226_readBusVoltage() {
-    i2c_start();
-    i2c_write_byte(INA226_ADDRESS << 1);
-    i2c_write_byte(INA226_REG_BUSVOLTAGE);
-    i2c_start();
-    i2c_write_byte((INA226_ADDRESS << 1) | 1);
-    uint8_t high = i2c_read_byte(true);
-    uint8_t low = i2c_read_byte(false);
-    i2c_stop();
+    i2c_start_ina226();
+    i2c_write_byte_ina226(INA226_ADDRESS << 1);
+    i2c_write_byte_ina226(INA226_REG_BUSVOLTAGE);
+    i2c_start_ina226();
+    i2c_write_byte_ina226((INA226_ADDRESS << 1) | 1);
+    uint8_t high = i2c_read_byte_ina226(true);
+    uint8_t low = i2c_read_byte_ina226(false);
+    i2c_stop_ina226();
     int16_t value = (high << 8) | low;
-    return value * 0.00125; // 1.25mV/LSB
+    return value * 0.00125f; // 每 LSB = 1.25mV
 }
 
 // 读取电流
 float INA226_readCurrent() {
-    i2c_start();
-    i2c_write_byte(INA226_ADDRESS << 1);
-    i2c_write_byte(INA226_REG_CURRENT);
-    i2c_start();
-    i2c_write_byte((INA226_ADDRESS << 1) | 1);
-    uint8_t high = i2c_read_byte(true);
-    uint8_t low = i2c_read_byte(false);
-    i2c_stop();
+    i2c_start_ina226();
+    i2c_write_byte_ina226(INA226_ADDRESS << 1);
+    i2c_write_byte_ina226(INA226_REG_CURRENT);
+    i2c_start_ina226();
+    i2c_write_byte_ina226((INA226_ADDRESS << 1) | 1);
+    uint8_t high = i2c_read_byte_ina226(true);
+    uint8_t low = i2c_read_byte_ina226(false);
+    i2c_stop_ina226();
     int16_t value = (high << 8) | low;
-    return value * currentLSB; // 假设电流 LSB 为 1mA
-}
+    return value * currentLSB;
+}
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