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393 Commits

Author SHA1 Message Date
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: #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: #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: #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: #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: #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
topquark12 193d54a0a6 pid: anti-windup when compliance voltage reached 2021-01-11 14:00:52 +08:00
topquark12 3067b356c5 channels: add methods to retrieve actual voltage and current of TEC 2021-01-08 16:18:20 +08:00
topquark12 3ba2cc9ddc channels: voltage measurement refalect actual voltage across TEC 2021-01-08 15:52:35 +08:00
topquark12 1539b624bd pid: more sensible default parameters 2021-01-08 11:31:33 +08:00
topquark12 5c84b7438b Integral rescaling 2021-01-08 11:25:01 +08:00
topquark12 cc0126636c report save success 
save does not hang, it just did not report save success. Closes #33

Reviewed-on: #44
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-07 18:01:43 +08:00
topquark12 45b7c4e669 add documentation about PID setup and using Python tools 
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-07 14:48:39 +08:00
topquark12 73dd6d9154 add PID autotune code 
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2021-01-06 11:02:52 +08:00
topquark12 e94601f54f pid: fix derivative calculation 
Reviewed-on: #40
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2020-12-29 17:09:03 +08:00
topquark12 8c9e12587f fix simulation math, provided simulation control loop is stable and passes test, reaching simulation cycle limit before settling fails test 2020-12-28 17:38:10 +08:00
topquark12 7c013ff4a4 PID fixes 
Flipped error calculation method to correct behavior of kP and kI terms.

Added anti integral windup to integral handling.

Changed how the i and integral term is calculated, to prevent old kI settings from affecting the current i term calculation when kI is being tuned. Especially noticable when kI is set from a non-zero value to zero.
Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
 2020-12-26 11:47:21 +08:00
Sebastien Bourdeauducq 50a1b9f52d pid: partial -> proportional 2020-12-26 11:01:40 +08:00