RTC and SD logs

[rusefillc]

Does RTC and SD names work as of today? Proteus? Hellen?

We have a report https://rusefi.com/forum/viewtopic.php?f=19&t=2428

[rusefillc]

I've just seen proper SD card file names with date on hellen154h

[mck1117]

I've just seen proper SD card file names with date on hellen154h

are they correct?

ie,

1. install battery, connect ECU to rusefi console so it sets time
2. unplug ECU, leave on shelf unpowered for 24h
3. power without USB so that it writes a log
4. check timestamp, confirm it's right

[rusefillc]

I love the test plan and have no time to try :(

[mck1117]

really? it takes 5 minutes twice, 24 hours apart

[mck1117]

@BeerMoneyMotorsports since @rusefillc seems unable, can you give it a try on latest prerelease firmware?

[BeerMoneyMotorsports]

I will try it tomorrow morning. I just updated an ecu that i fixed. Set timestamp and all. Ill run it in the lemon.

[BeerMoneyMotorsports]

it does not maintain correct time. i just did a log and it still shows the time from when i connected console last night.

[mck1117]

so that's a no, it doesn't work

[mck1117]

#define STM32_LSE_ENABLED                   FALSE

seems like a smoking gun to me

[rusefillc]

Actually

// todo: apply LSE patch

[rusefillc]

#463 says 'hello 2022'

[mck1117]

well, we shouldn't technically need LSE for the rtc to do something

LSI will still work, if inaccurate. I believe hellen boards have an LSE, though.

[mck1117]

rtc survives soft reset (no power cycle) with LSI as-is, need to test with battery

[rusefillc]

@nmschulte any interest to poke further? Any interest to restore LSE auto-detection see #463?

[nmschulte]

I haven't built or tested the changes for ChibiOS or rusEFI (no LSE hardware).

I added logic for all STM32 devices in ChibiOS, and re-enabled LSE for the three STM32 mcuconf.h (unsure which ones need/want it).

I didn't re-add the rtcWorks sentinel flag, figuring this can be checked via ChibiOS mechanisms i.e. (RCC->BDCR & RCC_BDCR_LSERDY) != 0 (depending specific STM32 variant).

Some take-aways:

• firmware/docs/rusEFI_custom_chibios.md stands to be reviewed
  • linking to a list of commits w/ good messages would eliminate the need to maintain this file
• firmware/docs/chibios_rusefi_20.patch needs updated
  • linking to commits/diffs (on GitHub) in rusefi/ChibiOS.git would eliminate the need to maintain these files
• something I'm forgetting I'm sure ...