软件iic可以正常读取了

system/sensor/INA226.c

@@ -6,76 +6,15 @@
 
 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_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();
+    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();
     return true;
 }
 
@@ -84,39 +23,39 @@ bool INA226_calibrate(float rShuntValue, float iMaxExpected) {
     currentLSB = iMaxExpected / 32767.0; // 电流 LSB
     uint16_t calibrationValue = (uint16_t)(0.00512 / (currentLSB * rShuntValue));
 
-    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();
+    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();
     return true;
 }
 
 // 读取总线电压
 float INA226_readBusVoltage() {
-    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();
+    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();
     int16_t value = (high << 8) | low;
     return value * 0.00125f; // 每 LSB = 1.25mV
 }
 
 // 读取电流
 float INA226_readCurrent() {
-    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();
+    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();
     int16_t value = (high << 8) | low;
-    return value * currentLSB;
+    return -value * currentLSB;
 }

usr/main.c

@@ -42,7 +42,7 @@ int main_start_error_return() {
         my_zlog_warn("INA226初始化失败");
     }
     // 校准 INA226
-    float rShuntValue = 0.1; // 分流电阻值（单位：欧姆）
+    float rShuntValue = 0.01; // 分流电阻值（单位：欧姆）
     float iMaxExpected = 5; // 最大预期电流（单位：安培）
     if(!INA226_calibrate(rShuntValue, iMaxExpected)){
         my_zlog_warn("INA226校准失败");