https://github.com/owainm713/AD9833-MicroPython-Module

Micropython module to use the AD9833 programable waveform generator
https://github.com/owainm713/AD9833-MicroPython-Module

ad9833 micropython raspberry-pi-pico

Last synced: 2 months ago
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Micropython module to use the AD9833 programable waveform generator

• Host: GitHub
• URL: https://github.com/owainm713/AD9833-MicroPython-Module
• Owner: owainm713
• License: gpl-3.0
• Created: 2023-06-17T17:41:50.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-06-17T17:49:12.000Z (about 1 year ago)
• Last Synced: 2024-01-31T02:44:07.718Z (5 months ago)
• Topics: ad9833, micropython, raspberry-pi-pico
• Language: Python
• Homepage:
• Size: 17.6 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-micropython - AD9833-MicroPython-Module - MicroPython module to use the AD9833 programable waveform generator. (Libraries / IO)

README

        
# AD9833-MicroPython/Python-Module

MicroPython/Python module to use with the AD9833 programable waveform generator. Testing done with a AD9833 breakout

board off of Amazon and a Raspberry Pi Pico microcontroller for MicroPython and a Raspberry Pi3 for Python.

SPI requires py-spidev and python-dev modules for Python version.

SPI connections to the AD9833 board from the Pi Pico are as follows:

- Pico 3.3V to AD9833 Vin

- Pico Gnd to AD9833 DGND

- Pico IO2 SCLK to AD9833 SCLK

- Pico IO3 to AD9833 SDATA

- Pico IO1 to AD9833 FSynch

SPI connections to the AD9833 board from the Pi 3 are as follows:

- Pi 3.3V to AD9833 Vin

- Pi Gnd to AD9833 DGND

- Pi SCLK to AD9833 SCLK

- Pi MOSI  to AD9833 SDATA

- Pi CE0 or CE1 to AD9833 FSynch

Current functions include:

- set_frequency(fout, freqSelect) - function to set output frequencies (fout). Range 0 to 12.5MHz. Sets either the FREQ0 or FREQ1 registers - freqSelect 0 or 1.

- set_phase(pout, phaseSelect, rads = True) - function to set output phase (pout) in either degrees or radians. Sets either the PHASE0 or PHASE1 registers - phaseSelect 0 or 1.

- set_mode(mode = 'SIN') - function to output waveform shape. Valid values are; 'RESET','OFF','SIN','TRIANGLE','SQUARE','SQUARE/2 

- set_write_mode(writeMode = 'BOTH') - function to set how data is written to the frequency registers. Values values are; 'BOTH','MSB' and 'LSB' 

- select_freq_phase(FS, PS) - function to set which frequency and phase register values are used to set the output. FS & PS both can be either 0 or 1

- set_control_reg(B28 = 1, HLB = 0, FS = 0, PS = 0, RESET = 0, SLP1 = 0, SLP12 = 0, OP= 0, DIV2 = 0, MODE = 0) - function to set the individual bits of the control register.

See example file for sample usage.

Created Jun 12, 2023

Modified Jun 12, 2023