Python PBBDevices.setDAC7731 Examples

Programming Language: Python

Class/Type: PBBDevices

Method/Function: setDAC7731

Examples at hotexamples.com: 2

Python PBBDevices.setDAC7731 - 2 examples found. These are the top rated real world Python examples of PBBDevices.setDAC7731 extracted from open source projects. You can rate examples to help us improve the quality of examples.

Frequently Used Methods

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deSelectSPISlaves(8)

selectSPISlave(7)

configure7949(2)

read7949(2)

configureGPIO(1)

configureTSensor(1)

disableHV(1)

enableHV(1)

freeHardwareResources(1)

initializeHardware(1)

readGPIOConfiguration(1)

readTemperature(1)

setDAC7731(1)

Example #1

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    def setCLMidVoltage(self, vinput):
        syslog.syslog(LOG_STSW_PRI, "> HVControlBoard:setCLMidVoltage")
        vmax = 2000
        if (vinput < vmax):
            digInput = int(round(vinput * 0x10000 / vmax))
            PBBDevices.selectSPISlave(DAC_LOAD_ID, SPI_MODE_3)
            PBBDevices.setDAC7731(digInput >> 8, SPI_MODE_3)
            PBBDevices.deSelectSPISlaves(SPI_MODE_3)
            PBBDevices.selectSPISlave(DAC_LOAD_ID, SPI_MODE_3)
            PBBDevices.setDAC7731(digInput & 0x00ff, SPI_MODE_3)
            PBBDevices.deSelectSPISlaves(SPI_MODE_3)
            PBBDevices.deSelectSPISlaves(SPI_MODE_0)
            PBBDevices.selectSPISlave(DAC_OPUT_ID, SPI_MODE_0)
            PBBDevices.deSelectSPISlaves(SPI_MODE_0)

            PBBDevices.selectSPISlave(DAC_LOAD_ID, SPI_MODE_3)
            config1 = int(PBBDevices.setDAC7731(digInput >> 8, SPI_MODE_3))
            PBBDevices.deSelectSPISlaves(SPI_MODE_3)
            PBBDevices.selectSPISlave(DAC_LOAD_ID, SPI_MODE_3)
            config2 = int(PBBDevices.setDAC7731(digInput & 0x00ff, SPI_MODE_3))
            PBBDevices.deSelectSPISlaves(SPI_MODE_3)
            PBBDevices.deSelectSPISlaves(SPI_MODE_0)
            PBBDevices.selectSPISlave(DAC_OPUT_ID, SPI_MODE_0)
            PBBDevices.deSelectSPISlaves(SPI_MODE_0)

            if (digInput == (config1 << 8 | config2)):
                print "Desired voltage is set"
            else:
                print "Unable to set desired Voltage"
        else:
            print "wrong input, input voltage should be less than 10 Volts"
        syslog.syslog(LOG_STSW_PRI, "< HVControlBoard:setCLMidVoltage")

Example #2

Show file

File: HVControlBoard.py Project: ksaneez/HVControlLibrary

	def setCLMidVoltage(self,vinput):
		syslog.syslog(LOG_STSW_PRI,"> HVControlBoard:setCLMidVoltage")
		vmax = 2000
		if (vinput<vmax):
			digInput = int(round(vinput*0x10000/vmax))
			PBBDevices.selectSPISlave(DAC_LOAD_ID,SPI_MODE_3)
			PBBDevices.setDAC7731(digInput>>8,SPI_MODE_3)
			PBBDevices.deSelectSPISlaves(SPI_MODE_3)
			PBBDevices.selectSPISlave(DAC_LOAD_ID,SPI_MODE_3)
			PBBDevices.setDAC7731(digInput & 0x00ff,SPI_MODE_3)
			PBBDevices.deSelectSPISlaves(SPI_MODE_3)
			PBBDevices.deSelectSPISlaves(SPI_MODE_0)
			PBBDevices.selectSPISlave(DAC_OPUT_ID,SPI_MODE_0)
			PBBDevices.deSelectSPISlaves(SPI_MODE_0)
			
			PBBDevices.selectSPISlave(DAC_LOAD_ID,SPI_MODE_3)
			config1 = int(PBBDevices.setDAC7731(digInput>>8,SPI_MODE_3))
			PBBDevices.deSelectSPISlaves(SPI_MODE_3)
			PBBDevices.selectSPISlave(DAC_LOAD_ID,SPI_MODE_3)
			config2 = int(PBBDevices.setDAC7731(digInput & 0x00ff,SPI_MODE_3))
			PBBDevices.deSelectSPISlaves(SPI_MODE_3)
			PBBDevices.deSelectSPISlaves(SPI_MODE_0)
			PBBDevices.selectSPISlave(DAC_OPUT_ID,SPI_MODE_0)
			PBBDevices.deSelectSPISlaves(SPI_MODE_0)
			
			if (digInput == (config1<<8|config2)):
				print "Desired voltage is set"
			else:
				print "Unable to set desired Voltage"
		else:
			print "wrong input, input voltage should be less than 10 Volts"
		syslog.syslog(LOG_STSW_PRI,"< HVControlBoard:setCLMidVoltage")