Serial 是一个Go语言实现的串口(Uart)接口包,可使用操作系统标准的 read 和 write 文件接口 实现串口字节流的接收和发送。
8 N 1 N (数据位: 8 奇偶校验: N 停止位: 1 数据流控: N)
package main
import (
"log"
"github.com/xluohome/serial"
)
func main() {
c := &serial.Config{Name: "COM9", Baud: 9600}
s, err := serial.OpenPort(c)
if err != nil {
log.Fatal(err)
}
txbuf := []byte{0xAA, 0x01, 0x0f, 0x00, 0x00, 0xBA}
n, err := s.Write(txbuf)
if err != nil {
log.Fatal(err)
}
buf := make([]byte, 128)
n, err = s.Read(buf)
if err != nil {
log.Fatal(err)
}
log.Printf("%X\n", buf[:n])
}
By default the returned Port reads in blocking mode. Which means
Read()
will block until at least one byte is returned. If that's not
what you want, specify a positive ReadTimeout and the Read() will
timeout returning 0 bytes if no bytes are read. Please note that this
is the total timeout the read operation will wait and not the interval
timeout between two bytes.
c := &serial.Config{Name: "COM45", Baud: 115200, ReadTimeout: time.Second * 5}
// In this mode, you will want to suppress error for read
// as 0 bytes return EOF error on Linux / POSIX
n, _ = s.Read(buf)