kopia lustrzana https://github.com/oddwires/RP2040-code
9ee02ab3c9
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| .. | ||
| Images | ||
| CMakeLists.txt | ||
| ClockModule.cpp | ||
| ClockModule.h | ||
| DAC.pio | ||
| DAC_Class.cpp | ||
| DAC_Class.h | ||
| Demo.cpp | ||
| Demo.h | ||
| FunctionGenerator.cpp | ||
| Function_Generator.uf2 | ||
| GPIO+Definitions.h | ||
| README.md | ||
| SPI_Utils.cpp | ||
| SPI_Utils.h | ||
| pico_sdk_import.cmake | ||
README.md
Function Generator on a RP2040.
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Features:
- Direct Digital Synthesis (DDS) Function Generator
- Independant control of either channel through Putty terminal session over USB port
- Dual 8 bit R-2R Digital to Analog converter
- 1Hz => 1MHz frequency range.
- X-Y mode for Analog clock
- Variable output level 0=>100%
- External, 3 digit, SPI display
- Target device = Pico (also works on Pimoroni PGA2040)
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Limitations:
- USB serial requires Windows (10 or later)
- Phase sync mechanism not effective at high frequencies
- Target device must be overclocked for 1MHz operation
Two independanty controled, phase locked, DMA channels...
Early version of hardware running single channel 150Hz Sine wave + 3rd harmonic on a vintage oscilloscope...
X-Y mode for Analog Clock Simulator on a CRT Oscilloscope...
