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Product List
Here’s an example diagram of how to hook up to an audio converter. In this example, we’re looking at an A to D, the AD1871. We have an analog signal from a microphone coming in and converting it with a pretty straightforward interface. The control channel is via SPI, so the Blackfin is the master, and selects the SPI peripheral of the 1871. The data port is just a straight transmit using three of the four SPORT pins in the receive direction on the Blackfin. The Blackfin is receiving the audio data that’s digitized by this converter.
PTM Published on: 2006-08-24
