Mainboard: Add RTC battery information #45
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amstan
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Dec 10, 2024
Mainboard/README.md
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| ## RTC Battery Interface | ||
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| NOTE: The mainboard will charge this battery, so a rechargable ML1220 battery must be used. | ||
| CR2032 is not okay because it cannot be charged. |
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you will get explody batteries if you do that, maybe we should include some warnings after a little more research.
amstan
reviewed
Dec 10, 2024
Mainboard/README.md
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| ### Onboard RTC Battery | ||
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| Framework 13 Intel Core 11th through 13th Generation use an onboard coin cell battery as RTC. | ||
| These systems ship with a battery that keeps BIOS time, settings and configuration. |
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Might be useful to say ram training data is stored here, so if you don't have a battery the board will take forever to boot, not just the first time but every time.
amstan
reviewed
Dec 10, 2024
Mainboard/README.md
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| | Pin | Signal | | ||
| |-----|-----------| | ||
| | 1 | +RTCBATT | | ||
| | 2 | GND | |
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The pin numbers might not be obvious, how about we hint at left vs right with a drawing, or some kind of tip to look (or probe) for the ground plane.
I literally had to check the gerber layout and double check it with a multimeter to be sure when i had to hack a battery on.
Signed-off-by: Daniel Schaefer <[email protected]>
JohnAZoidberg
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