While trying to add support for the atmega328pb in avr-device I ran across a problem w

PTC peripheral has no base address about atdf2svd HOT 1 CLOSED

rahix commented on May 27, 2024

PTC peripheral has no base address

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Comments (1)

Rahix commented on May 27, 2024 1

Ugh, that sounds lovely ... Hardware vendor secrecy is just the best.

Anyway, the core issue here (apart from the vendor being ridiculous) is the PTC peripheral not defining any registers. This is what makes .base_address() fail, because it needs at least one register to calculate a base address. I'd say we can safely assume that any such peripheral is useless and thus should be skipped with a warning.

I think the easiest way to do this is by adding a .filter() here:

atdf2svd/src/svd/chip.rs

Lines 24 to 28 in 6b21b7a

 peripherals.children = c 

 .peripherals 

 .values() 

 .map(svd::peripheral::generate) 

 .collect::<Result<Vec<_>, _>>()?;

As this project is rather poorly documented, if you have any questions, feel free to ask! As a start, take a look at https://github.com/Rahix/atdf2svd/blob/master/src/chip.rs, it defines all the data-structures we're operating on.

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