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405 Commits

Author SHA1 Message Date
atse 76547be90a i_tec -> i_set 
i_tec is reserved for the voltage signal coming out of the MAX1968 chip
for now.
 2024-02-14 17:27:12 +08:00
atse 8b975e656e Stop i_set from fluctuating in every report 
i_set is a user-provided value that shouldn't fluctuate with every VREF
measurement. Storing i_set as channel state is the simplest way to avoid
that.
 2024-02-14 17:21:39 +08:00
atse ae3d8b51d4 Disable feedback current readout on flawed HW Revs 
Thermostats v2.2 and below have a noisy and offset feedback current
`tec_i` caused by missing hardware on 2 MAX1968 TEC driver pins:

1. A missing RC filter on the ITEC pin that would have isolated CPU
sampling pulses from the signal; and
2. Some missing buffering on the VREF pin that would have avoided
loading the VREF signal, preventing voltage drops from the nominal 1.5V.

Since the resulting signal `tec_i` derived from these two signals can
have an error of around +/- 100mA, and readback may affect the stability
performance of the Thermostat, disable current readback entirely on
affected hardware revisions for now.

See https://github.com/sinara-hw/Thermostat/issues/117 and
https://github.com/sinara-hw/Thermostat/issues/120.

On hardware revisions v3.x and above, this would be fixed.
 2024-01-31 12:12:22 +08:00
atse 17edae44fb README: Proofread fan control documentation 2024-01-30 12:43:19 +08:00
atse 03b4561142 Refactor current_abs_max_tec_i to use uom 2024-01-30 11:41:52 +08:00
atse 631a10938d README: Remove VREF 2024-01-26 17:00:27 +08:00
atse 6cd6a6a2c2 Fix warning '...not permit being left uninit..d' 
Put SocketState initialisation logic in new. This avoids using an unsafe
and unnerving MaybeUninit::uninit().assume_init() to initialise an
array, which the compiler yells at since it causes undefined behavior.
 2024-01-17 15:29:56 +08:00
atse b93e2fbb7b Update rust edition 2024-01-17 15:29:56 +08:00
atse 76b95f66e0 Use latest working stable rust 2024-01-17 15:29:41 +08:00
atse 8008870bc1 Switch panic_handler to panic_halt 
Move away from panic_abort as it uses intrinsics, which is nightly only.
 2024-01-17 15:29:15 +08:00
atse 7646ff9037 README: Avoid deprecated OpenOCD ST-Link config 
The config file interface/stlink-v2-1.cfg is deprecated, and the warning
message encourages the switch to interface/stlink.cfg. Do accordingly.
 2024-01-04 12:44:52 +08:00
atse 6f81a63d12 Remove unused LED parameters 2023-09-20 15:51:37 +08:00
atse 78012f6fdd flake: Use rust from manifest, not from pkgs 
Fix the rustPlatform deprecation warnings properly.
 2023-09-20 11:29:38 +08:00
atse bb4f43fe1c Remove stale reference to channel_state vref 2023-08-22 17:16:25 +08:00
atse 9df0fe406f Remove VREF in reports 
Since VREF is an implementation detail, there shouldn't be a need to
include it in reports.

The ChannelState vref is removed along with it as its only use was to
save VREF measurements for later reporting.
 2023-08-22 11:40:42 +08:00
topquark12 5ba74c6d9b README: Correct expected TEC polarity 
Adhere to the general convention of TECs cooling down with positive
voltages.
 2023-08-15 16:37:51 +08:00
atse 6f0acc73b8 Update LED L3 for PID status on every cycle 
Check if PID is engaged on any channel every cycle, and match the status
with LED L3.
 2023-08-10 16:43:19 +08:00
atse f29e86310d Update nix repos 2023-08-09 11:23:32 +08:00
atse b04a61c414 Turn off LED L3 only when all channels have no PID 
Change the behaviour of LED L3 to turn off only when all channels have
PID disengaged, as opposed to when any channel disengages PID.

Otherwise, when disengaging PID on a Thermostat that has had both
channels engaged in PID, the LED would turn off, even when PID is still
engaged on the other channel.

This lets the LED better reflect the status of the Thermostat as a
whole, as it would stay on as long as PID is engaged on at least one
channel.
 2023-08-07 16:09:54 +08:00
atse cd680dd6cd README: Correct unit of time in reports 2023-07-20 17:45:16 +08:00
Egor Savkin e3e3237d2f Emit warning when current/voltage limits are near zero 
Signed-off-by: Egor Savkin <es@m-labs.hk>
 2023-03-23 16:58:05 +08:00
Egor Savkin 570c0324b3 implement support for fan PWM 
Co-authored-by: Egor Savkin <es@m-labs.hk>
Co-committed-by: Egor Savkin <es@m-labs.hk>
 2023-03-22 17:15:49 +08:00
mwojcik 5688b2f1bb flake: update stm32-eth sha256 hash 2022-03-02 17:21:17 +08:00
mwojcik 1b2f2f3888 update code to use stm32f4xx-hal 0.10.1 API 2022-03-02 17:21:17 +08:00
mwojcik e6f63ec940 cargo/nix: update rustc, stm32-eth, smoltcp 2022-03-02 17:21:17 +08:00
mwojcik 67446ae99e cargo/flake: update package versions 2022-03-02 17:21:17 +08:00
topquark12 26ad2f0119 rewrite PID 
Rewrite of PID according to https://hackmd.io/IACbwcOTSt6Adj3_F9bKuw PID implementation.

To migrate:
- TEC+/- pin polarity has to be reversed.
- Some saved settings might be wiped upon flashing of new firmware, back up settings before upgrade
- Min / Max integral parameters no longer exist
- kp, ki, kd will likely need to be retuned

The software has been tested on hardware with good temperature control stability.

Reviewed-on: M-Labs/thermostat#68
Co-authored-by: topquark12 <aw@m-labs.hk>
Co-committed-by: topquark12 <aw@m-labs.hk>
 2022-02-24 20:16:47 +08:00
Alex Wong 69dabf5aa1 update hash 2022-01-24 17:20:32 +08:00
mwojcik a26cdfabb1 readme: update CI links 2022-01-19 11:37:01 +08:00
mwojcik 4d43709f76 nix flakes support (#64) 
Reviewed-on: M-Labs/thermostat#64
Co-authored-by: mwojcik <mw@m-labs.hk>
Co-committed-by: mwojcik <mw@m-labs.hk>
 2022-01-19 11:13:47 +08:00
Sebastien Bourdeauducq 1c00e732fa README: minor corrections 2022-01-05 08:22:43 +08:00
Sebastien Bourdeauducq 09082b24a5 README: update build instructions 2022-01-05 08:04:25 +08:00
Sebastien Bourdeauducq 85e8273d51 shell.nix: follow nix-scripts 2022-01-05 07:54:07 +08:00
Sebastien Bourdeauducq e81c6d1692 README: fix objcopy command 2022-01-05 07:50:53 +08:00
Sebastien Bourdeauducq 1f644fd62c README: fix nix-scripts folder 2021-07-14 08:43:59 +08:00
Sebastien Bourdeauducq 4f1d865d2b README: fix Hydra links 2021-07-14 08:42:53 +08:00
topquark12 e6a5c31db6 main.rs refactor to reduce length (#60) 
Move command handling to command_handler.rs to shorten main.rs

Reviewed-on: M-Labs/thermostat#60
Co-authored-by: topquark12 <aw@m-labs.hk>
Co-committed-by: topquark12 <aw@m-labs.hk>
 2021-06-07 10:07:05 +08:00
topquark12 a5d8661b10 main: fix handling of incomplete data received (#55) 
Reviewed-on: M-Labs/thermostat#55
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-29 16:18:07 +08:00
topquark12 7cb0ed70be Reset all TCP sockets before MCU reset (#53) 
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-26 17:45:14 +08:00
topquark12 6b9d61737e docs: update docs to reflect improved stability performance 2021-01-25 13:51:50 +08:00
topquark12 16844a1dc1 dac: fix inconsistent current output behavior due to repeated sampling of noisy vref 2021-01-25 13:51:50 +08:00
topquark12 96f52ace8b pytec: simpler default graphs in plot 2021-01-25 13:51:50 +08:00
topquark12 a1a8efd51a readme: update docs on max_i_neg command and heat flow directions 2021-01-25 13:51:50 +08:00
Sebastien Bourdeauducq 8eb3cc4307 dfu: style 2021-01-18 16:59:13 +08:00
topquark12 f3661ac8e3 dfu: refactor 2021-01-18 16:45:01 +08:00
topquark12 c4e3be1d05 fix pid.rs test, exclude dfu from test 2021-01-16 11:04:24 +08:00
topquark12 cf3ace4d2d flash_store: get addresses from linker 
Reviewed-on: M-Labs/thermostat#49
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-13 17:30:12 +08:00
topquark12 f6802635a4 add command to reboot into DFU 
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-13 11:59:06 +08:00
topquark12 9e4d06fdbc clarify comment 2021-01-11 16:24:43 +08:00
topquark12 3433881d0f remove dead code 2021-01-11 14:10:50 +08:00