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
17edae44fb
README: Proofread fan control documentation
2024-01-30 12:43:19 +08:00
631a10938d
README: Remove VREF
2024-01-26 17:00:27 +08:00
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
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
cd680dd6cd
README: Correct unit of time in reports
2023-07-20 17:45:16 +08:00
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
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
a26cdfabb1
readme: update CI links
2022-01-19 11:37:01 +08:00
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
1c00e732fa
README: minor corrections
2022-01-05 08:22:43 +08:00
09082b24a5
README: update build instructions
2022-01-05 08:04:25 +08:00
e81c6d1692
README: fix objcopy command
2022-01-05 07:50:53 +08:00
1f644fd62c
README: fix nix-scripts folder
2021-07-14 08:43:59 +08:00
4f1d865d2b
README: fix Hydra links
2021-07-14 08:42:53 +08:00
a1a8efd51a
readme: update docs on max_i_neg command and heat flow directions
2021-01-25 13:51:50 +08:00
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
45b7c4e669
add documentation about PID setup and using Python tools
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Co-Authored-By: topquark12 <aw@m-labs.hk>
Co-Committed-By: topquark12 <aw@m-labs.hk>
2021-01-07 14:48:39 +08:00
5987d9c881
README: rlwrap nc, 60 Hz
2020-12-18 21:27:09 +01:00
e9e46b29cf
pid: integrate time_delta to free gain parameters from sampling period
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Fixes Gitea issue #22
2020-12-18 15:40:05 +01:00
b7e6cdbec2
pytec: measure interval
2020-12-16 22:14:21 +01:00
93ea46d512
README: doc postfilter
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Fixes Gitea issue #21
2020-12-16 20:47:18 +01:00
383ebcd8e4
rewrite config for sfkv-based flash_store
2020-12-12 01:25:07 +01:00
088bd6eb76
README: cleanup build and flashing instructions
2020-12-09 10:16:40 +08:00
35d1e2e205
Revert "not yet ready note"
...
This reverts commit 7af5d8582d#23 (comment)
2020-12-09 10:02:36 +08:00
1090d0f5b5
Merge pull request 'flashing with dfu-util' ( #20 ) from jbqubit/thermostat:flashdoc into master
...
Update based on two issues.
#10
https://github.com/sinara-hw/Thermostat/issues/87/
Reviewed-on: #20
2020-12-09 08:16:45 +08:00
5c8bb47e11
command_parser: require the explicit i_set symbol
2020-12-09 01:07:08 +01:00
b92a5f18cd
README: fix units
2020-12-09 00:56:17 +01:00
7af5d8582d
not yet ready note
2020-12-08 12:00:00 -05:00
fca2de665c
flashing with dfu-util
2020-12-08 11:07:48 -05:00
ffcc3f661b
README: add pid units
2020-12-07 23:18:44 +01:00
5e8bf0e765
README: add Debugging and Flashing
...
Fixes Gitea issue #10
2020-12-07 00:22:00 +01:00
af0d78237f
Clarify purpose of GND pin adjacent to TECn+/-.
2020-12-06 15:11:42 +08:00
150d6c2f87
README: use frontpanel LED names
2020-10-12 00:26:49 +02:00
aee279b579
README: doc
2020-10-11 21:50:36 +02:00
1939490410
README: fix syntax
2020-10-11 21:09:15 +02:00
2e9d22cf47
README: doc
2020-10-11 21:08:02 +02:00
f12214a4df
README: doc usb
2020-10-11 01:59:39 +02:00
59103cb2a1
add support for ipv4 address reconfiguration
2020-10-01 01:34:46 +02:00
5acebbef9f
pytec: doc set_param
2020-10-01 00:35:16 +02:00
97a09e422b
main: add support for disabling postfilters
2020-09-26 01:29:35 +02:00
83589610b5
implement reset command
2020-09-25 00:14:29 +02:00
93f14523d7
command_parser: parse load/save
2020-09-24 01:17:50 +02:00
a84242fb1f
implement setting i_set centerpoint
2020-09-23 22:30:04 +02:00
fc0ca8b581
calculate i_set current
2020-09-16 22:22:48 +02:00
8c80062da8
use proper units for pwm pins
2020-09-16 22:06:15 +02:00
ec6aa03dc3
set pwm values as ratio 0..1
2020-05-27 20:38:57 +02:00
9682d7657d
README: update title
2020-04-09 13:16:30 +08:00
5faf64eae8
README: link CI, more instructions
2020-03-23 23:42:22 +01:00
cfea205e06
README: init
2020-03-23 23:03:58 +01:00
