Re: [avrdude-dev] [RFC] XMEGA PDI programming with a AM335x processor

[Enric Balletbo i Serra]

Hi again,

Just a quick note that finally I found the problem, as I supposed the problem 
was in the PRU firmware, to be more exact, the problem was due I was using an 
old PRU compiler. I just updated my repository with latest changes for if 
someone finds it useful and wants to test.

Thanks,
  Enric


On 29/01/17 12:53, Enric Balletbo i Serra wrote:
> Dear all,
> 
> This is a request for comments.
> 
> I've been working on add XMEGA PDI programming support using the Programmable 
> Realtime Unit (PRUSS) available on AM335x based boards like Beaglebone Black. 
> With this you can program an XMEGA in-circuit without requiring any external 
> hardware. The programmer needs a custom firmware that needs to be loaded to 
> the PRU [1], avrdude loads the firmware and communicates with it to be able 
> to program the firmware on XMEGA, the code is available here [2] and the 
> specific commit that adds support for it is here [3]. It works doing
> 
>  avrdude -p atxmega16d4 -c pruss -e -U flash:w:my-firmware.hex
> 
> But there is still an issue that I need to solve, though I have a workaround 
> to make it work. I'm pretty sure that the problem is in the PRU firmware side 
> so not a problem with avrdude. Nevermind if you want to help test, review or 
> give me your comments all are welcome. Do not hesitate to contact me if you 
> are interested on this, either by email or in the irc (nickname eballetbo). I 
> hope have a stable version soon but meanwhile, I repeat, if anyone would like 
> to test all feedback is welcome.
> 
> Best regards,
> 
>  Enric
> 
> 
> [1] https://github.com/eballetbo/pdi-pruss
> [2] https://github.com/eballetbo/avrdude
> [3] 
> https://github.com/eballetbo/avrdude/commit/ba3cb893cf3931033faeb4ebe0c296842f168cc7
> 
> 
> 
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