Demos do not compile

[darkstar007]

Hi,

It looks like there is a missing include file:

$ cd learn-fpga/FemtoRV/FIRMWARE/LiteX/DemoBundle
$ make BUILD_DIR=/home/matt/litex_2022/build/radiona_ulx3s/
 CC       tinyraytracer.o
demos/tinyraytracer.c:6:10: fatal error: demos.h: No such file or directory
 #include "demos.h"
          ^~~~~~~~~
compilation terminated.
make: *** [Makefile:110: tinyraytracer.o] Error 1

I cannot see demos.h in the repos.....

Thanks, Matt

[BrunoLevy]

Hi Matt, Oops, Forgot to add this file last time. Now I've added it. Best regards, -- B

[darkstar007]

Hi B,

Thanks, but I now get:

$ make BUILD_DIR=/home/matt/litex_2022/build/radiona_ulx3s/
 CC       tinyraytracer.o
In file included from demos/tinyraytracer.c:6:
demos/demos.h:4:10: fatal error: command.h: No such file or directory
 #include "command.h"
          ^~~~~~~~~~~
compilation terminated.
make: *** [Makefile:110: tinyraytracer.o] Error 1

Matt

[BrunoLevy]

On the command line you need to specify where LiteX is installed:

$ make LITEX_DIR=<your local installation of LiteX> LITEX_PLATFORM=radiona_ulx3s (or whatever you are using)

Alternatively, you can edit the Makefile and make it point to your local installation of LiteX:

# find BUILD_DIR without using Python wrapper
LITEX_DIR?=/home/blevy/Programming/LiteX
LITEX_PLATFORM?=radiona_ulx3s

[darkstar007]

Ahh, OK, I was taking the instructions from here where it says:

$ make BUILD_DIR=<path where you synthesized LiteX> 

It builds now thanks.

[BrunoLevy]

Thanks ! (I've fixed the documentation that was wrong !)

[darkstar007]

I also came across some typo's you might want to fix. On this, in the section on OpenFPGALoader every command has openFPGALoader spelt as openFLGALoader!

[darkstar007]

Sorry, another typo in this page. In Step 2: Execute, it says:

$ lxterminal --kernel demo.bin /dev/ttyUSBnn

and should be:

$ lxterm  --kernel demo.bin /dev/ttyUSBnn

[BrunoLevy]

Many thanks for your feedback and for the fixes !