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Altera_Forum's avatar
Altera_Forum
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17 years ago

C Programming with Audio IP Cores

I am trying to take an inputted Audio file and trying to save it to the SDRAM (ie recording a word said into a microphone to the memory). My system uses a DE2 board with a Nios II Processor and...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

What kind of trouble are you in, recording or playback?

One thing, if you are using NiosII/f with data cache, you can not get correct value of Switch because of data caching, I think. To bypass data cache, you have to define

# define Switch ((volatile char *) (0x01001020 | 0x80000000))

or read through IORD macro

IORD(Switch,0) instead of (*Switch)