全球首发! 1-wire的linux下的python专用库. openwrt下测试成功

1. 硬件: DS9490R, 温度探头: DS18B20, 刷好openwrt的WR703N一台
2. 安装python-mini, 大约占用空间1.6M.
  opkg install libffi python-mini
3. 提供ar71xx内核的python专用库, 文件名为: xuowpy.so
  将本文件拷贝到路由器上, 并修改属性
  chmod +x  xuowpy.so

4. python的代码如下

# 1-wire的linux下的python专用库测试例程
# 硬件: DS9490R, 温度探头: DS18B20, 刷好openwrt的WR703N一台
# http://blog.chinaunix.net/uid-27194309-id-4371278.html
# opkg install libffi python-mini
# chmod +x xuowpy.so

import xuowpy

str1 = xuowpy.test1("12")
print str1

data1 = [0x31, 0x32, 0x33, 0x34, 0x35, 0x36]
#data1 = [0x01, 0x32, 0x33, 0x34, 0x35, 0x36]
str1 = ""
for i in range(len(data1)):
  str1 = str1 + "%02X" % data1[i] #大写2位16进制字串
print str1

num = xuowpy.get_crc8(str1)
print "crc8 = " + hex(num) + ", " + str(num)

num = xuowpy.get_crc16(str1)
print "crc16 = " + hex(num) + ", " + str(num)

num = xuowpy.get_crc32(str1)
print "crc32 = " + hex(num) + ", " + str(num)

#---- 1-wire 测试
device_name = "USB"
portnum = xuowpy.device_open(device_name)

if portnum > 0:
  value = xuowpy.ds18b20_get(portnum)
  print "ds18b20 = " + str(value)

  xuowpy.device_close(portnum)