Alchitry Cu - First FPGA Project - Getting Fancy with PWM

Development Boards FPGA Boards
1

I am an FPGA noob and running through the tutorial “First FPGA Project - Getting Fancy with PWM.”

The code posted through the end of the “Pulsing an LED” section, and that included with the Alchitry Labs Loader (and IDE), will not build on my Cu board. I’ll keep digging to understand if there is some incompatibility of the counter.luc or pwm.luc code, and maybe head over to the Alchitry forums as well. But any ideas why it won’t run?

Throughout the suggested starting point, the “Programming an FPGA” tutorial, everything worked fine. Nice blinky LED. In that tutorial it was specifically noted that the modules should work for the Cu as well as the Au board. Is the same not true in the “First FPGA Project - Getting Fancy with PWM” tutorial?

2

The Cu uses iceCube2 https://alchitry.com/icecube2 - is that what is being used? Also, ensure the PWM module is selectable from the menu (https://learn.sparkfun.com/tutorials/fi … th-pwm/all ‘components library’)…other than those, you may need to change the references in the code from Au to Cu, but I’m not 100% certain on that.

Finally, as mentioned, you could also poke around their forum https://forum.alchitry.com/

3

Hi, yes I’m using icecube2. Also yes I am using the pwm.luc file from the components library you reference.