ChibiOS Free Embedded RTOS

I've finally done moving my fork over to Contrib. PR

Suggestions for improvements/changes are welcome! I know it's a lot of stuff, so please test and report (but of course utzig has the last word

All merged now. Apparently it works which is not bad!

Next step, remove Kinetis from main repo. Probably tomorrow.

Cheers,
Fabio Utzig

Thanks! Pretty cool! {I was starting to get antsy.} I hope it's mostly OK. I tested what I could and tried to code conscientously ...

@jstruebel - I did not add your FRDM-K20D50M/USB_SERIAL demo because the USB_SERIAL demos needed slight updating (at least Makefile, chconf.h) and I do not have a FRDM-K20D50M board to test (they're out of production). Could you please re-add?

BTW, I do not mind keeping an eye on the Kinetis port. I have all the other boards that are there now (except the K20D50M). I'll probably buy also a FRDM-KL27Z board.

The reason that I'd like the Kinetis port to be healthy is that ARM Teensies (and Kinetis chips in general) are sometimes being used in custom-made keyboards {AVRs are still more common, but ...}, and one of the open source firmwares that is often used is TMK which can use ChibiOS as a low-level layer. {It has not been used commercially though, and it's GPL'd. I hope this does not violate the license policies - please let me know if it does!}

I do have the FRDM-K20D50M and can test demos for it.

Cool! I'll work on adding the FRDM-K20D50M/USB_SERIAL demo this week and let you all know.

Added the FRDM-K20D50M USB_SERIAL project and tested. Github PR is here. Please let me know if anything should be changed. Also tested the FRDM-KL25Z USB_SERIAL and it works no problem.

I discovered as I was updating the makefile that Giovanni has added makefiles to include for the streams (chprintf) and shell files so I went ahead and used them in place of calling out the files explicitly. If you would like I can change the other USB_SERIAL projects, but I only have the FRDM-KL25Z board to test them in case I make a typo.