NIOS II system + PWM logic

Hi everyone!!

I am quite new designing systems with FPGAs, VHDL and NIOS II and this is my first post in this forum.

I am trying to develop a system with a NIOS II system + some PWMs developed using VHDL.

The problema is that I am not sure how to control this PWMs modelues with my system I mean, how to create the SIGNALs to comunicate this VHDL logic from NIOS II system.

First I though about PIO but those seem to be used to comunicate FPGA with external devices.

Another issue I have is that I am not sure how to use the UART implemented from Qsys and how to develop an application in C. I don't know what are the diferrent commands or directives to send or receive data.

I saw and write one example from a web I found but it is quite simple and doesn't provide enough info for my application.

Can anyone help with this??

Thanks!

Omar