Using FIO as Digital Output

[mkelly]

I ran out of DIO ports on my two labjacks and I'm looking for other ways out outputting 5v.

I'm already using FIO 4-7 on both jacks for PWM controllers, though I still have FIO 0-3 on both boards available.

I confused as to how to define a FIO port in DAQFactory.

Do I need to specify that the port is output-high using:

AddRequest (lngHandle, LJ_ioPUT_DIGITAL_BIT, 0, 1, 0, 0);
AddRequest (lngHandle, LJ_ioPUT_DIGITAL_BIT, 1, 1, 0, 0);

and then revert it back to low?

or is there a simpler way to do this that I'm missing in the channel configuration? Thus far I have tried setting it as an D to A channel # 2, as well as Dig out channel# 0-2

[mkelly]

Update of progress:

I found this tutorial: http://www.azeotech.com/dl/DF_LJUD_QuickTutorial.pdf but it doesn't seem to register a change in my FIO outputs.

I'm beginning to think my PWM coding is preventing me from using FIO's 0-3 since I have this code:

// configure PWM timer:
//Set the timer/counter pin offset to 4, which will put the first timer/counter on FIO4.
AddRequest (ID,  LJ_ioPUT_CONFIG, LJ_chTIMER_COUNTER_PIN_OFFSET, 4, 0, 0)
AddRequest (ID2,  LJ_ioPUT_CONFIG, LJ_chTIMER_COUNTER_PIN_OFFSET, 4, 0, 0)

[mkelly]

Ok I figured out where I was erroring.

Problem solved

[LabJackSupport]

Glad you solved your problem. You can control digital outputs with DF Channels also. The following does an analog output, but should work if you specify digital output and set a value of 0 or 1:

http://labjack.com/support/ud/df-lj-app-guide/3.4

The following also looks useful:

http://labjack.com/support/ud/df-lj-app-guide/7.1

... and the quick tutorial does a digital output:

http://labjack.com/sites/default/files/2009/07/DF_LJUD_QuickTutorialPrintable.pdf