MIO Pull-up / Pull Down

Universal Controller for CAN Applications
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Clemlsn
Posts: 5
Joined: Thu 17. Mar 2022, 14:23

MIO Pull-up / Pull Down

Post by Clemlsn » Fri 10. Jun 2022, 11:25

Hello,

I just received a Pcan MIO industrial version.
I want to use the Din of the MIO to observe the state of some outputs from my board.
I created the message in PPCAN:
Image

Then I linked the message to the Din pins:
Image

I loaded the configuration in the MIO.
So I have the correct message sent at the correct rate, but it seems that there a default pull-up in the system that puts the measurements at 8.5V.
I need to use a pull down for my set up, but it seems that the configuration is not available in PPCAN editor:
Image

In the user manual, I'm suppose to have the function 88h to modify the pull-up pull-down for the digital inputs:
Image

How can I solve this ?
I'm using PPCAN editor version 2.2.2.260

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S.Schott
Hardware Development
Hardware Development
Posts: 32
Joined: Mon 4. Oct 2010, 16:50

Re: MIO Pull-up / Pull Down

Post by S.Schott » Fri 10. Jun 2022, 15:41

Hello there.

When creating this config, you have probably chosen MIO instead of MIO32.
With MIO32, you may configure the pull resistors as expected (see screenshot).
MIO32-pullup-pulldown.JPG
MIO32-pullup-pulldown.JPG (61.85 KiB) Viewed 4591 times
.

Greetings,
Stefan

Clemlsn
Posts: 5
Joined: Thu 17. Mar 2022, 14:23

Re: MIO Pull-up / Pull Down

Post by Clemlsn » Fri 10. Jun 2022, 16:02

Hello,

indeed that was it. Thanks for the support !

Clément

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