Thomas Kolb
df3211333e
Properly shut down peripherals before entering deep sleep
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This is most important for the LEDs and the RS485 interface. If any LED
is on when deep sleep is entered, it will stay on the whole sleep time,
drawing about 10 mA on the 3,3V rail.
The RS485 transceiver must be switched to RX mode, as it consumes about
30 mA from the 5V rail in TX mode.
2021-06-12 16:02:21 +02:00
Thomas Kolb
5ceb014d1b
Disable RS485 driver and systick before deep sleep
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- The RS485 driver consumes about 150 mW if enabled
- The systick somehow can wake up the CPU from stop mode
2021-06-12 16:02:21 +02:00
Thomas Kolb
189ea810d9
deepsleep: use libopencm3 functions instead of register access
2021-06-12 16:02:21 +02:00
Thomas Kolb
98d0c08ec3
First try to implement deep sleep
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It sleeps, but never wakes up again. Also it consumes a lot of current
which suspended?!
2021-06-12 16:02:21 +02:00
Thomas Kolb
fa71acfc8e
main.c: remove unused #includes
2021-06-12 01:12:33 +02:00
Thomas Kolb
c76918ae2a
Moved clock setup to separate file
2021-06-11 23:55:10 +02:00
Thomas Kolb
d2a95c4353
charge_control: removed unused code
2021-06-11 23:52:50 +02:00
Thomas Kolb
ed6ac04686
Refactoring: move FSMs to separate functions
2021-06-11 22:51:02 +02:00
Thomas Kolb
c504fb944c
Call charge_control_init()
2021-06-11 22:35:59 +02:00
Thomas Kolb
1ad35dae2b
Print (dis)charge FSM state changes
2021-06-11 22:35:07 +02:00
Thomas Kolb
6b070bbf86
Started implementing real charge control
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Everything untested so far…
2021-06-07 22:45:17 +02:00
Thomas Kolb
0982f8d7c9
Increase charge pump frequency to 500 Hz
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This change reduces the voltage drop with higher loads, for example if
both the solar and the load switch are on at the same time.
2021-06-06 15:08:22 +02:00
Thomas Kolb
3e8ebbe201
Fixed "debug" make target
2021-06-06 12:20:58 +02:00
Thomas Kolb
46d3e16104
Make measurement usable
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- Run ADC Calibration on startup (without calibration, there is a huge
offset error, making the current sensing unusable)
- Added calibration factors which allow to compensate for inaccuracies
in the circuitry (example: 1% tolerance transistors)
- Send measured values via RS485
2021-06-06 12:17:38 +02:00
Thomas Kolb
2ca6c41260
Implemented RS485 driver (TX only)
2021-06-06 12:16:46 +02:00
Thomas Kolb
c01cb4f742
Prepare for analog measurements
2021-06-05 21:20:12 +02:00
Thomas Kolb
6644b29257
Added power switch driver
2021-06-05 16:33:21 +02:00
Thomas Kolb
5764d87a08
Added the charge pump driver
2021-06-05 15:49:29 +02:00
Thomas Kolb
8c317f2904
Initial commit
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- Set up build with latest libopencm3
- Created basic project structure
- Implement Charlieplexing for the LEDs and a little test sequence
2021-06-05 00:04:36 +02:00
Thomas Kolb