ADC081C027: Programming the ADC081C027

 I am trying to program the ADC081C027, but I am not able to get any results from any register, but the default settings. Even using i2cset and i2cget I am unable to set or change any values on any of the internal registers.

sudo i2cget -y 1 0x51 0x00, which should give me the conversion result in a hex formate gives me only 0x00

I also trying to set the configuration register using 

sudo i2cset -y 1 0x51 0x02 0x20 to set the conversion interval to 32 and flags to 0 and polarity to 0

then,

sudo i2cget -y 1 0x51 0x02, which still gives me 0x00

So nothing I'm doing is chaining the values on the device

here is the python code I was writing to interface with the device, but it is not working:

#import CHIP_IO.GPIO as GPIO
import time
import smbus

#I2C Address
ADC081C027_ADDRESS= (0x51)#is U1 and 0x51 is U9

#Internal Registers
ADC081C027_CONVERSION_RESULT = (0x00)
ADC081C027_ALERT_STATUS = (0x01)
ADC081C027_CONFIG = (0x02)
ADC081C027_LOW_LIMIT = (0x03)
ADC081C027_HIGH_LIMIT = (0x04)
ADC081C027_HYSTERESIS = (0x05)
ADC081C027_LOWEST_CONVERSION = (0x06)
ADC081C027_HIGHEST_CONVERSION = (0x07)


class ADC081C027:
    def __init__(self, twi=1, addr=ADC081C027_ADDRESS):
        self._bus = smbus.SMBus(twi)
        self._addr = addr
        self._bus.write_byte_data(ADC081C027_ADDRESS,ADC081C027_CONFIG,0x20)#set Converstion Interval to 32, set flags to 0, set polarity to 0


    def rawvoltage(self):
        volt=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_CONVERSION_RESULT)#Read from conversion result return whole string, only getting 0x00
        return volt

    def typeofTrip(self):
        flag=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_ALERT_STATUS)#Return type of trip either 01 or 10
        return flag


    def setLowVolt(self, lim):
        self._bus.write_byte_data(ADC081C027_ADDRESS,ADC081C027_LOW_LIMIT, lim)#Set low voltage for flag on conversion register

    def getLowVolt(self):
        result=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_LOW_LIMIT)#Get low voltage set before
        return result

    def setHighVolt(self, lim):
        self._bus.write_byte_data(ADC081C027_ADDRESS,ADC081C027_HIGH_LIMIT, lim)#Set High voltage for flag on conversion register

    def getHighVolt(self):
        result=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_HIGH_LIMIT)#get high voltage set before
        return result

    def setHysteresis(self,hyst):
        self._bus.write_byte_data(ADC081C027_ADDRESS,ADC081C027_HYSTERESIS, hyst)#set hyst on conversion register

    def getHysteresis(self):
        result=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_HYSTERESIS)#get hyst set before
        return result

    def getLowestConverstion(self):
        result=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_LOWEST_CONVERSION)#get lowest conversion
        return result

    def getHigestConverstion(self):
        result=self._bus.read_i2c_block_data(ADC081C027_ADDRESS,ADC081C027_HIGHEST_CONVERSION)#get highest conversion
        return result

and the code to run it:

import voltcheck
import relay
import time


zonelist=[1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]#change any of 16 values to turn on or off zone
tca9535 = relay.TCA9535()
tca9535.byzone(zonelist)
#This is to enable a relay and create an closed circuit to get the voltage from



upperLim=0x05
lowerLim=0x01
hysteresis=0x00
adc081C027 = voltcheck.ADC081C027()

print "test for voltage on relays, load limits and wait for it to be met"
adc081C027.setLowVolt(lowerLim)
print "lower set to " + str(lowerLim)
time.sleep(.1)

adc081C027.setHighVolt(upperLim)
print "upper set to " + str(upperLim)
time.sleep(.1)

adc081C027.setHysteresis(hysteresis)
print "hysteresis set to " + str(hysteresis)
time.sleep(.1)

print "raw volatage" + str(adc081C027.rawvoltage())

print "low range was " + str(adc081C027.getLowVolt())
print "high range was " + str(adc081C027.getHighVolt())
print "hysteresis was " + str(adc081C027.getHysteresis())
print "lowest conversion on record is " + str(adc081C027.getLowestConverstion())
print "highest conversion on record is " + str(adc081C027.getHigestConverstion())





Thanks for any help,
Vijit Singh