New project, litehm2: a hostmot2 port to linsn rv901t

sensille wrote:

 

I can't do more than offering my help.

You can.
You have got good idea, but (in my opinion) you chose bad way.
Leave Litex, or leave RV901T.

IlyaKw wrote:

On what basis did you come to that conclusion ?

I count warnings produced by compilation process.
It is about 750 (seven hundreds and fifty warnings !!!).
I never will believe it can give good firmware.

tuxcnc wrote:

I count warnings produced by compilation process.
It is about 750 (seven hundreds and fifty warnings !!!).
I never will believe it can give good firmware.

Most warning in Xilinx are not an indications for real problems. Xilinx is infamous for the number of warnings their tools generate. Even if you just use their provided cores you can easily end up with more warnings.
Most of them are just informational, like "look, I was able to optimize your circuit here!". Or unused connections.
The hard task is to find the real warnings in there. The xilinx IDE offers tons of filter capabilities for that.

Well, I bought two RV901T, so I will try.
But I'm not an optimist...

There migh be an issue with an overfull FPGA. If you give me the board.conf you are trying to build I can build and test it myself.

github.com/sensille/litehm2/issues/3

sensille wrote:

There migh be an issue with an overfull FPGA.
 

I confirm, I tried, a more complex firmware do not fit in Spartan 6.
It is another good reason why you should replace RV901T by 5A-75B.