37 lines
1 KiB
Python
37 lines
1 KiB
Python
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# a simple class to manage serial communication testing without to install the pySerial package
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class Serial:
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def __init__(self, device, baudrate, timeout):
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self.device = device
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self.baudrate = baudrate
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self.timeout = timeout
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self.msg_ok = [ 0x3c, 0x3e, 0x01, 0x0d, 0x0a ]
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self.msg_nok = [ 0x3c, 0x3e, 0x02, 0x0d, 0x0a ]
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self.msg_br = [ 0x3c, 0x3e, 0x03, 0x00, 0x01, 0xc2, 0x00, 0x0d, 0x0a ]
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self.msg_ml = [ 0x3c, 0x3e, 0x04, 0x00, 0x0d, 0x0a ]
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def read(self, num=0):
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if num == 0:
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return bytearray(['0'])
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else:
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ret = []
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tmp = self.msg_ok
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tmp += self.msg_nok
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tmp += self.msg_br
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tmp += self.msg_ml
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for i in range(0, num):
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if i < len(tmp):
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ret.append(tmp[i])
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return bytearray(ret)
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def write(self, data):
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for d in data:
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print "0x%02x " % (d)
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pass
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def close(self):
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print "Serial connection close"
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