Help with Digital Pins?

[Diesel77]

I've got a couple of DAQ's in our lab that I'm trying to read and write to using Python. I'm working on the Omega OM-USB-1608G.

What I would like to do is set DIO0, DIO1, DIO2 and DIO3 to be input pins to read digital signals (just high/low) and then set DIO4, DIO5, DIO6 and DIO7 to be output signals high or low (I'm driving a couple of motors and those need to set motor direction). All on a 0 to 5V range.

 

My understanding from the documentation is that I need to set the configuration state of the pins for input/output using something like this:

ul.d_config_port(board_num ,  DigitalPortType.FIRSTPORTA, DigitalIODirection.IN)

ul.d_config_port(board_num ,  DigitalPortType.FIRSTPORTC, DigitalIODirection.OUT)

 

and then read/write to the pins using something like:

VariableValue = ul.d_in(board_num, DigitalPortType.FIRSTPORTA)

ul.d_out(board_num, DigitalPortType.FIRSTPORTC, data_value)

 

Unfortunately, this isn't working (probably something massively obviously). I've been bashing my head against the wall, and I'm SURE I've got something basic wrong. The error that i'm currently getting is from the first two lines, "DigitalPortType.FIRSTPORTA" part of the commands, isn't accepted. I've gone through "class DigitalPortType(IntEnum)" and tried everything there, but none of the values seem to be acceptable for my board except for AUXPORT.

Also, I have gone through the calibration steps in InstaCal and all the pins on my board are all working. I can use AUXPORT (the DIO0 pin) but it's the only one I can seem to do anything with. 

Any help here would be greatly appreciated. 

[DAQman]

use the following to set the bit direction:

ul.d_config_bit(board_num, DigitalPortType.AuxPort, bitnum, DigitalIODirection.In)

AuxPort is used with devices that have individual bit direction control, such as the USB-1608G (same for Omega OM-USB-1608G)

 

more info can be found in https://www.mccdaq.com/pdfs/manuals/Mcculw_WebHelp/ULStart.htm

 

[Diesel77]

OoooooooooooooooooooooooooooooooooooooOOOH!!!!


Thank you!!! I was misreading how that worked. Thank you so much!! Let's not talk about the amount of time I've been struggling with this