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Look at the top-level code again - there is no ADC component instantiated.
I have not used the ADC on the DE0-nano. Its an SPI device, so its pretty easy to write a controller from scratch.
The type of controller you write depends on what you want to do with it, for example,
1. Use an existing "SPI Master Controller" and write software to interface to the ADC.
2. Create an Avalon-MM slave with 8 addresses, and when you access any one of these 8 addresses perform a conversion. Use a DMA controller to transfer blocks of samples to SDRAM.
3. Create an Avalon-MM ADC controller interface, where you set the ADC clock frequency, and the rate at which it auto-reads channels. Software then just reads the last conversion value from 8 registers.
Cheers,
Dave
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Hi Dave, thanks a lot for your reply, I would have a look on the three options you stated here and see what I should do next, thanks again for your inputs!
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