demo/fota_uart/main.py

   1 #!/usr/bin/python3
   2 # -*- coding: UTF-8 -*-
   3
   4 import os, sys, serial.tools.list_ports, time
   5
   6
   7 for item in serial.tools.list_ports.comports():
   8     if not item.pid or not item.location :
   9         continue
  10     if item.vid == 0x19d1 and item.pid == 0x0001 and "x.6" in item.location :
  11         print(dir(item))
  12         print(item.name)
  13         with serial.Serial(item.name, 115200, timeout=1) as ser:
  14             while 1:
  15                 ser.write(b"#FOTA\n")
  16                 data = ser.read(128)
  17                 if data and data.startswith(b"#FOTA") :
  18                     print("设备响应", data)
  19                     with open("fota_uart.bin", "rb") as f :
  20                         while 1 :
  21                             fdata = f.read(256)
  22                             if not fdata :
  23                                 print("发送完毕,退出")
  24                                 sys.exit(0)
  25                             print("发送升级包数据", len(fdata))
  26                             ser.write(fdata)
  27                             data = ser.read(128)
  28                             if data :
  29                                 print("设备响应", data)
  30                 else :
  31                     print("设备没响应", data)
  32                 break
  33
  34