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Altera_Forum's avatar
Altera_Forum
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16 years ago

NIOS cyclone III - analog inputs?

Hi, I'm trying to figure out a way to use analog inputs to the cyclone III nios board that is attached to the lcd daughter board? Any suggestions? Help.
Altera_Forum's avatar
Altera_Forum
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16 years ago

1) You can use HSMC Data Conversion board which contains high speed ADC/DAC interface. But drawback is that by using this board you have to remove LCD Multimedia board.

2) How many analog input you want to use and what is input voltage range. You can use mic input available on LCD board as analog input but the input voltage range for that is very low ( approx. 1.2 v max ). Using this analog input you can read digital data of your mic input analog signal from audio codec available on lcd board (WM8731 Chip).

Regards,

Hardik Sheth