Timeline for Second counter saved in flash memory - How to avoid deterioration?
Current License: CC BY-SA 4.0
17 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| S Aug 23, 2022 at 18:20 | vote | accept | J.Deschenes | ||
| Aug 23, 2022 at 18:20 | vote | accept | J.Deschenes | ||
| S Aug 23, 2022 at 18:20 | |||||
| Aug 18, 2022 at 21:13 | answer | added | Jerry Coffin | timeline score: 1 | |
| Aug 18, 2022 at 12:00 | history | tweeted | twitter.com/StackElectronix/status/1560235062976724992 | ||
| Aug 17, 2022 at 19:00 | answer | added | Seth Robertson | timeline score: 1 | |
| Aug 17, 2022 at 3:44 | history | became hot network question | |||
| Aug 17, 2022 at 0:02 | comment | added | SteveSh | "Save the amount of elapsed seconds" - between what? Are you just trying to save the elapsed time between two events? That only requires a few bytes, depending on the dynamic range required. | |
| Aug 16, 2022 at 21:59 | answer | added | Gil | timeline score: 22 | |
| Aug 16, 2022 at 21:26 | comment | added | Velvet | With a super-cap and a power failure circuit you could write the data on the event of power outage. | |
| Aug 16, 2022 at 20:46 | comment | added | Mattman944 | You should consider other system solutions. How accurate does this elapsed time need to be? How often do you lose power? Maybe write once per day instead? | |
| Aug 16, 2022 at 20:38 | answer | added | bobflux | timeline score: 18 | |
| Aug 16, 2022 at 20:27 | comment | added | TimWescott | And those batteries can last a good long time. The battery in my Agilent mixed signal scope died a year ago -- about 16 years after I bought it. | |
| Aug 16, 2022 at 20:13 | comment | added | Tirdad the Whitehand | Yeah that's why there is a "battery backed RAM". even some RTC chips have a few bytes of spare RAM on board for other purposes than time. Aside from that, there are microcontrollers that can preserve some critical datum on very low power modes, usually backed by battery. | |
| Aug 16, 2022 at 20:07 | history | edited | ocrdu | CC BY-SA 4.0 | deleted 3 characters in body |
| Aug 16, 2022 at 19:58 | comment | added | TimWescott | "I cannot use RAM because ..." off-topic, but make sure you know what to do about partial writes, or make sure that a write is never partial (by using a big-enough hold-off cap, and an interrupt on power-down that insures that any write that's been started before the plug is pulled finishes before power to the CPU goes away). | |
| S Aug 16, 2022 at 19:40 | review | First questions | |||
| Aug 16, 2022 at 19:44 | |||||
| S Aug 16, 2022 at 19:40 | history | asked | J.Deschenes | CC BY-SA 4.0 |