A 3d printer firmware in C

I'm trying to port SmoothieWare to UDOO using the Atmel Studio 6 (freeware).
I want to rewrite it in C to have maximum control over performances.
At the moment I've succesfully ported the code related the stepticker, stepper motors, pins and gpio being able to reach up to 25kstep/second over 12 motors in parallel. I'm only facing some problem in gpio mapping (it seems that pin names does not match arduino functions in UDOO_pinout_alternate_table.pdf) and using uart... Can someone help me? Cheers

 

I'll be watching this I want to build a delta printer myself. slowly buying all the parts I need.. I have a ramps-fd on the way right now along with some stepsticks and 3 cheap steppers for testing.

 

Really?? Nobody can help me with the I/O and the serial?

 

Have you read up on Mickey's work -> viewtopic.php?f=8&t=436

 

Hi Lifeboat_jim, I've read that post but it refers to the i.MX6 side of the I/O management. What I need is help to understand if the official ATMEL mapping files for the SAM3X8E is coherent with the mapping indicated in the UDOO's alternate table: I'm probably doing something wrong but, for instance, trying to blink the PC2 pin with Atmel Studio 6 samples results in blinking the PIN34...