2022-10-16 13:49:53 +00:00
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# Function Generator on a RP2040. #
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2022-10-16 13:46:23 +00:00
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* TBD:
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* Port the clock code from [here](https://www.micro-examples.com/articles/index.php?title=PicOClock)
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2022-10-16 13:49:53 +00:00
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* Features:
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2023-05-06 13:52:55 +00:00
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* Direct Digital Synthesis (DDS) Function Generator
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* Dual 8 bit R-2-R Digital to Analog converter
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2023-06-18 14:10:42 +00:00
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* Variable output level (requires MCP41020 dual digital potentiometer with SPI interface)
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* Target device = Pico (also works on Pimoroni PGA2040)
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2023-05-06 13:52:55 +00:00
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* External, 3 digit, SPI display
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2023-03-27 16:24:40 +00:00
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* Independant control of either channel through Putty terminal session
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2023-06-18 14:10:42 +00:00
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* Putty terminal session over USB port
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* Limitations:
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* USB serial requires Windows (10 or later)
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* Square wave rise time is slow ( distortion visable at ~10KHz )
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* Phase sync mechanism not effective at high frequencies
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2023-03-27 16:24:40 +00:00
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**Two independanty controled, phase locked, DMA channels...**
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**Early version of hardware running single channel 150Hz Sine wave + 3rd harmonic on a vintage oscilloscope...**
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2022-04-15 15:28:23 +00:00
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2022-08-07 13:00:00 +00:00
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