How to set drive strength of I/O pins for XU316 processors? Topic is solved

[michaelf]

As far as I can see, my options would be to use the `setc` assembly instruction, or there seems to be numerous references to drive strength on this page: https://www.xmos.com/documentation/XM-0 ... 1-api.html

I'm not versed in assembly and haven't quite got my head around how to achieve this, having referenced the above materials and the XS3 architecture guide.

Can anyone give some example code of exactly how to set the drive strength of a pin?

[Joe]

Hi,

Thanks for the question. I've attached some sample code for configuring the pad settings for a given port on xcore.ai. Note all pins on a given port will be set the same. Each port can have its own setting.

The sample code drives a 10MHz clock on port 1A on tile 0 (X0D00).

port_pad_ctrl.xc

Cheers,
Joe

[michaelf]

Hi,

Thanks for the question. I've attached some sample code for configuring the pad settings for a given port on xcore.ai. Note all pins on a given port will be set the same. Each port can have its own setting.

The sample code drives a 10MHz clock on port 1A on tile 0 (X0D00).

port_pad_ctrl.xc

Cheers,
Joe

That's perfect, thanks for such a quick reply. I think it was the "pad" terminology that was throwing me when I was looking through all the #defines.