Firmware update/upload (FPGArduino)

[drtrigon]

As mentioned in #92; "The firmware should be uploaded in the flash memory using iceprog, outside of icestudio. In future versión we will integrate it into icestudio as well".

What about support for FPGArduino (see http://www.nxlab.fer.hr/fpgarduino/)? That would allow to compile and upload code via Arduino IDE:

[drtrigon]

f32c/arduino#32

[drtrigon]

I re-open this because I still think this would be great idea and as mentioned in f32c/arduino#32 (comment) I was just not able to get it working (even though I know I am really close - I just don't have the time anymore)...

[drtrigon]

Ok, had another idea. Now we have a bootloader and upload from arduino ide works. However the code does not execute after uploading yet. Looks like a mem mapping issue.

[drtrigon]

Can someone that knows the picorv32 please help at f32c/arduino#32 (comment) the question is: "we need to know particular configuration address of RAM, size of RAM and can CPU execute code from the RAM" Help is appreciated. Thanks!

[cliffordwolf]

See answer to #116.

[drtrigon]

I was not yet able to get the booloader working but meanwhile I found another way (essentially replacing the Makefile). Now we have working Arduino IDE integration. Check f32c/arduino#32 (comment)

AlhambraII_Generic_picorv32.tar.gz

[drtrigon]

github repo: https://github.com/drtrigon/fpgarduino-icestorm