20 lines
1.1 KiB
Markdown
20 lines
1.1 KiB
Markdown
# This describes the story of trying to get the Pi to shutdown and reboot using a single power-button
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## Findings:
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- gpio-shutdown interferes with I2C pin, we need to either move gpio-shutdown or i2c to different pins
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- GLOBAL_EN does not seem to be useful to send a halt signal, shorting it to ground is equivalent to disconnecting the power (somehow) and thus will allow it to boot up, and hard-reset but thats it
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# Things modded:
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- Installed the rpi-eeprom package documentation from Rpi themselves [here](https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-bootloader-configuration)
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```To view the current EEPROM configuration:
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rpi-eeprom-config
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To edit it and apply the updates to latest EEPROM release:
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sudo -E rpi-eeprom-config --edit```
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## References
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- [gpio-shutdown overlay and low power state](https://github.com/seamusdemora/PiFormulae/blob/master/LoPwrOneButtonStartStop.md)
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- [Stackexchange discussion refering to link above and GLOBAL_EN](https://raspberrypi.stackexchange.com/questions/117013/raspberry-pi-4-b-gpio-boot-and-shutdown-buttons)
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