Have you ever used Nios with Cyclone II ?

[bianchi77]

Guys,

Have you ever used Nios with Cyclone II ?
Correct me if I'm wrong, I create Nios in Quartus then compile the code on Nios II eclipse ?
Perhaps you have a simple example to understand it ?

Any links / simple references ?

Thanks

 

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You create the Nios-ii in the SOPC and develop the code that runs on the Nios-ii using the EDS (which is eclipse based). Altera has tutorials on their web site for doing this. Doesn't matter if they aren't for cyclone II the process is the same if its' a cyclone III or a stratix IV.
https://www.altera.com/devices/processor/training/emb-training.html

Regards

 

[bianchi77]

Thanks for the response, I'll follow that,
In the meantime, I've read :
**broken link removed**
but I can not use nios.bdf I have created.....anyone knows?

Cheers

 

[FvM]

but I can not use nios.bdf I have created.....anyone knows?

No. Or as stated in the forum rules:

Only you know what "doesn't work" means

 

[ghattas.akkad]

Embedded SoPC Design with Nios II Processor and VHDL Examples by pung chu
check this ebook it has a step by step guide on working with the nios processor and it also targets the cyclone 2 family FPGA
https://academic.csuohio.edu/chu_p/rtl/index.html

 

[bianchi77]

Is it possible to use EP2C8Q144 ? How can I reduce memory element of NIOS ?thanks

 

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Turn off every memory hungry option of the Nios-II, basically you'll end up with a slow Nios-II with no cache.

 

[bianchi77]

which option is memory hungry ? I used CPU,Jtag,PIO,internal memory for 20Kbytes...

 

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20KB = 20 m9k RAMs and whatever CPU options that require memory e.g. cache.

 

[bianchi77]

20KB = 20 m9k RAMs, how can I read that ? any reference ? thanks

- - - Updated - - -

How can I connect PIO[7..0] pins ? Please have a look to the picture, thanks

I got it gpio[7..0]

 

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20KB = 20 m9k RAMs, how can I read that ? any reference ? thanks

Oops, sorry I didn't check the datasheet, haven't used a Cyclone II part for 5 years or more and the very last Cyclone part I used was a Cyclone III part, which has M9Ks. Cyclone-II has M4K RAMs so they are only 4Kbits each, therefore you need 40 of them to make your 20KBytes of RAM for the Nios-II. As there are only 36 M4Ks in a EP2C8 your design doesn't fit. Reduce the RAM from your 20KByte number.

This is last response I plan on giving as I find it irritating when someone posts the same questions to multiple forums...Yes, you know you posted to the Altera forum about the Nios-II fitting in a EP2C8Q144. Fine get the rest of your answers from there.

Regards