root/525.743/code/test scripts/tmp512.py @ 74eab0f1
| e45aa19e | dsorber | import sys
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import time
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import smbus
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class TMP512(object):
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def __init__(self, address):
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self.bus = smbus.SMBus(1)
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self.address = address
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def _reverse16(self, value):
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""" A quick hack method for reversing byte order for a 16 bit value """
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str_val = '%04X' % value
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new_val = str_val[2:4] + str_val[0:2]
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return int(new_val, 16)
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def read_reg(self, reg):
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raw = self.bus.read_word_data(self.address, reg)
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return self._reverse16(raw)
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def device_id(self):
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return '0x%04X' % self.read_reg(0x1F)
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| 74eab0f1 | dsorber | def _convert_temp(self, raw_val):
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temp = (raw_val >> 3) * 0.0625
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# Convert C to F
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return (temp * 1.8) + 32
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| e45aa19e | dsorber | def local_temp(self):
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| 74eab0f1 | dsorber | return self._convert_temp(self.read_reg(0x08))
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def temp_sensor1(self):
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return self._convert_temp(self.read_reg(0x09))
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def temp_sensor2(self):
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return self._convert_temp(self.read_reg(0x0A))
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| e45aa19e | dsorber | |||
def main():
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temp1 = TMP512(0x5c)
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| 74eab0f1 | dsorber | temp2 = TMP512(0x5d)
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print '0x%04X' % temp1.read_reg(0x01)
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print '0x%04X' % temp1.read_reg(0x09)
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| e45aa19e | dsorber | print '0x%04X' % temp1.read_reg(0x00)
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print temp1.device_id()
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| 74eab0f1 | dsorber | print 'The local temp1 is %d' % temp1.local_temp()
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print 'The local temp2 is %d' % temp2.local_temp()
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print 'The remote1 temp1 is %d' % temp1.temp_sensor1()
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print 'The remote2 temp1 is %d' % temp1.temp_sensor2()
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| e45aa19e | dsorber | |||
# bus = smbus.SMBus(1)
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# address = 0x5c
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# # 2 digits at 9ma sink
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# # bus.write_byte_data(self.address, 0x00, 0x35)
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# print '0x%02X' % bus.read_word_data(address, 0x00)
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# print '0x%02X' % bus.read_word_data(address, 0x1F)
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if __name__ == '__main__':
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sys.exit(main())
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