PERIPHERAL

[Altera_Forum]

Can I use the DMA to load a FIFO? If so, how would I go about that?  

 Thanks again.

[Altera_Forum]

Look at the sample components, included with your Nios II installation. In particular, I would start by looking at the altera_avalon_pio component.  

 The altera_avalon_pio_regs.h file is a pretty good starting point for anyone wanting to write "HAL"-compliant register headers. It&#39;s in the <nios2_install_dir>/components/altera_avalon_pio/inc/altera_avalon_pio_regs.h file.  Also, I&#39;d be curious to know why you didn&#39;t use the Component Editor...that is, of course, if you&#39;re using the 1.1 version of the Nios II kit.  The "0" does represent an offset. 0 would be offset zero from the address, as you entered below, and "1" would be offset 0x4 from the address you entered. You&#39;ll get a good idea, of how this works, if you have a look at the _pio_regs.h file, I mentioned earlier.  Cheers,  - slacker

[Altera_Forum]

Thanks slacker, I&#39;ll take a look at that. What about loading the FIFO from DMA (from SDRAM)? Is that possible?

[Altera_Forum]

Yes, your SDRAM would be an incrementing address, and you would have the destination a fixed address. I haven&#39;t done this before but have seen it documented under the Nios II literature section on the Altera site.