Hello, I need a 2 Channel DA Conversion. It should work via USB and should be as fast as possible >= 2*22kHz I use it for my open Loop Galvo Scanners. I use a 18f14k50 or 18F22k50 and a (SPI) MCP4822 D/A converter. My first tests was made with a bus pirate. At the moment I use USB Serial. My question: Is there a faster way? maybe USB Audio (HID)? My former tests with wireless RFM70 transmitters was too slow, so i switched to direct USB connection. Is there any howto or tutorial for HID USB Audio? hhd
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