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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
personal git repositories of Harald Welte. Your mileage may vary