Check this out:
https://github.com/EttusResearch/uhd/tree/master/fpga/usrp3/top/x400/dts
The .dts files in there are no longer used with the most recent released
(and we might delete them); they get auto-generated by the RFNoC image
builder. But they're still accurate.
Most GPIOs that map into the FPGA space are exposed using the uio driver.
--M
On Tue, Jul 9, 2024 at 12:41 AM hiroki_iwata--- via USRP-users <
usrp-users@lists.ettus.com> wrote:
> I am trying to understand the device tree and pin configuration of x4xx.
>
> Especially, “RFDC_POWERD“ GPIO pin.
>
>
> Now, I am searching the python
> script(mpm/python/usrp_mpm/periph_manager/x4xx.py) and I found that
> “RFDC_POWERED“ pin is GPIO pin.
>
> But, I cannot identify its corresponding device tree description.
>
> self._rfdc_powered = Gpio('RFDC_POWERED', Gpio.INPUT)
>
> Where is the device tree definition for x4xx?
>
>
> BR,
>
> Hiroki
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