AM2320 传感器：CRC 不匹配，来自传感器的 CRC(0)

Question

注意：代码是在 windows 10 中交叉编译的。代码：package mainimport (    "fmt"    "io"    "log"    "net/http"    aosong "github.com/d2r2/go-aosong"    i2c "github.com/d2r2/go-i2c")const i2CAddress = 0x5cconst i2CBus = 1// Server structtype Server struct {    Sensor *aosong.Sensor    I2C    *i2c.I2C}func main() {        var err error    s := Server{Sensor: aosong.NewSensor(aosong.AM2320)}    s.I2C, err = i2c.NewI2C(i2CAddress, i2CBus)    if err != nil {        log.Printf(err.Error())    }    fmt.Println(s.Sensor.ReadRelativeHumidityAndTemperature(s.I2C))    defer s.I2C.Close()}调试信息：2019-02-12T10:29:19.692 [     i2c] DEBUG  Write 3 hex bytes: [030004]2019-02-12T10:29:19.697 [     i2c] DEBUG  Read 8 hex bytes: [0304012500d92045]2019-02-12T10:29:19.698 [     i2c] DEBUG  Read 8 hex bytes: [0000000000000000]CRCs doesn't match: CRC from sensor(0) != calculated CRC(6912).知道为什么来自传感器的 CRC 为 0 吗？我能够使用 python 脚本读取具有相同地址的同一总线上的传感器。

Answer 1

库本身似乎有问题，它进行了两次读取，但由于未发送读取代码，因此值变为 0，如日志中所示：

2019-02-12T10:29:19.692 [     i2c] DEBUG  Write 3 hex bytes: [030004]

2019-02-12T10:29:19.697 [     i2c] DEBUG  Read 8 hex bytes: [0304012500d92045] (first read that was ignored)

2019-02-12T10:29:19.698 [     i2c] DEBUG  Read 8 hex bytes: [0000000000000000] (second one that came a 0)

CRCs doesn't match: CRC from sensor(0) != calculated CRC(6912)