Re: AtXmega32/64/168 support

[Rémy]

Hello,
Pushing diff in attachement to not depend of google drive.
Rémy

Le mer. 8 déc. 2021 à 18:38, Rémy <grizzlyfute@gmail.com> a écrit :

> Hello,
>
> My company have to works with *atxmega128a1 *and *atxmega128a4u *devices
> but unfortunately these are not implemented on Simulavr project.
> We use Simulavr for running unit test on our programs.
>
> I have developed a patch for implementing the basic features of the
> atxmega microcontroller. It can be found at
> https://drive.google.com/file/d/18jhbJ9M7zGnB_K132_1OYwk5ZpIDLyH9/view?usp=sharing
> (The savannah account is not working yet and i can not do pull request)
> It will provided without any counterpart, in order to improve *simulavr *
> software.
>
> The patch will manage
> - The CPU implementation
> - The full set of atxmega32/64/128 instructions
> - RAM addressing, and extended addressing
> - Hardware GPIO port
> - EEPROM and non-volatile memory controller for eeprom part.
> These features will be sufficient for running our unit tests and checking
> algorithms.
>
> However,
> - The most of IO registers are mapped to RAM.
> - No interruption are implemented
> - Timers are not implemented
> - Communication lines like SPI, UART, I2C are not implemented
> - GPIO special functions like detecting edge or PWM are not implemented
> - Read and write into flash memory are not tested yet
> - Some feature use atmega128 implementation, near to atXmega but
> uncompleted regarding to atXmega features.
>
> The software was tested with code running on atxmega128a1 and
> atxmega128a4u devices. We have also take care of not breaking the existing
> compatibility. Checks had done with atmega32/64/128 code as far as we could
> have.
>
> Thanks,
> MALMARTEL Rémy
>
>
>

atXmegaXXX_simulavr.diff
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