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- code to control digital potentiometers via SPI [MM]
- chip select not SPI CS
- idea: use comparator to determine voltage range, then reconfigure amplifier
- later
- problem: capacitance of digital poti
- idea 1:
- idea 2: logarithmic amplifier using transistor
- ADC driver
- core [MM]
- trigger function (we want to read all values ASAP)
- callback function (once new values are available)
- init function (initialize ADC)
- USB integration [HW]
- simple READ_ADC command
- one reply packet with all ADC channels
- OS timer
- how often?
- 'load modulation' driver
x set PA2/PA3 to binary 0..3
x add IO definitions for
- PLL INHIBIT low
- SPI_SS1_GAIN
- SPI_SS2_DATA_THRESHOLD
- BOOTLDR
- sampled data continuous output into file / stdout
- trigger sampling by raising/falling edge (configurable)
- sample only one buffer
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