Merge branch 'avr32dd20-devkit' into trunk

Added support for AVR DD MCUs, particularly avr32dd20.  Also did a bunch
of refactoring for how MCU support works, cleaned up the ADC code,
switched to consistent internal formats for voltage and temperature,
fixed the FW3X, and some other little things.

* avr32dd20-devkit: (28 commits)
  eliminated direct CCP register access from arch/attiny1616
  made the avr32dd20 flashing script more universal
  added a build target for FW3X with manually-fixed RGB aux wiring
  prevent future issues like the FW3X had
  fixed FW3X thermal regulation
  fixed incorrect temperature history for a few seconds after waking
  fsm/adc: removed dead code
  FW3X: fixed external temperature sensor
  FW3X: multiple upgrades...
  fw3x: fixed swapped red+blue, fixed battery measurements, added police color strobe
  fixed ADC on sp10-pro
  fixed ADC on attiny85 and related builds
  fixed ADC on attiny1634 and related builds
  more ADC / DAC / MCU progress...
  avr32dd20-devkit: make the defaults a bit more dev friendly (realtime voltage colors, and no simple UI by default)
  ADC voltage: battcheck 3 digits, fixed t1616, switched back to 8-bit internal volt unit
  got ADC voltage+temp working on avrdd... but broke all other builds/MCUs
  1.55V AA battery should not show as "white" voltage color, only purple
  started refactoring fsm/adc.*, but need a checkpoint before continuing
  added dac-scale.py: short script to calculate avrdd DAC+Vref values from level_calc.py ramp data
  ...

1 files changed, 26 insertions, 0 deletions

diff --git a/hw/lumintop/fw3x-lume1/README.md b/hw/lumintop/fw3x-lume1/README.md
new file mode 100644
index 0000000..8609c49
--- /dev/null
+++ b/hw/lumintop/fw3x-lume1/README.md
@@ -0,0 +1,26 @@
+# Lumintop FW3X Lume1
+
+A BLF FW3A with a new driver from LoneOceans.  The new driver adds efficient
+constant-current power regulation, RGB aux LEDs, and an upgraded temperature
+sensor.
+
+## Notes of interest
+
+**Flashing firmware**:  The MOSI and MISO pin are swapped, compared to a Hanklight.
+LoneOceans sent a fixed driver design to Lumintop, but the new design didn't
+get produced.  So to flash firmware, swap the wires for those two pins first.
+
+**RGB mixup**: Lumintop seems to have swapped the wires for aux R and aux B.
+This was fixed in firmware in 2023-12, but some lights were fixed in hardware
+before that, so the firmware fix might cause the colors to be swapped again.
+
+**Turbo**: The driver uses regulation for levels 1 to 149, and level 150 is a
+direct-drive FET.  This is by design, and the FET cannot be ramped smoothly up
+and down.  Turbo is a single level at the top of the ramp, with a big sudden
+drop to the next level.
+
+**Moon**: This light has a pretty bright preflash at moon level, and the
+output is unstable so there is very visible ripple.  The user can either raise
+the ramp floor to a level high enough to avoid these issues, or learn to live
+with the ripple and preflash.
+