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參考下列進行 pi 設置
https://pragmaticmonk.wordpress.com/2014/03/15/using-rtc-pcf8563-on-raspberry-pi-running-raspbian-os/
流程上，先更新 ubuntu 系統時間，參考
https://www.garron.me/en/linux/set-time-date-timezone-ntp-l…
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Ubuntu 14.04 Jetson TK1
3.10.40-grinch-21.3.4
The issue started when
```
$ ./copyzImage.sh
cp: cannot stat 'arch/arm/boot/zImage': No such file or directory
```
I checked the folder an…
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**NOTE** I'd be happy to present kernel configuration in a more readable form, but not sure what is available and preferred - please advice
Type | Version/Name
---…
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Stacktrace from "journalctl -fl" before I lost my ssh connections.
This appears to be a 100% reproducible lockup when I run 'zfs destroy "$snapshot"'.
```
# zfs list -t snapshot | wc -l
269
```
Stac…
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How may I2C read more than one HAT EEPROM if there is only one fixed 0x50 I2C address?
Even there is unique UUID, the hardware EEPROM address allows to read only one EEPROM.
If stacked two boards, the…
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same machine,same setup works in production with hardened-sources-3.11.7 and zfs-0.6.2-r3
dmesg:
[ 1188.329344] SPL: Loaded module v0.6.2-1
[ 1188.653303] ZFS: Loaded module v0.6.2-1, ZFS pool version…
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The dtoverlay=w1-gpio is not working at A+ board and booting hangs up at the first "rainbow" screen.
At the B+ board the same SD card works normally. The only way how to bring the A+ board working wit…
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Hi,
Any idea why even though there's no error during the boot process I have no wireless device?
```
U-Boot SPL 2016.03 (Apr 08 2016 - 09:51:22)
Trying to boot from MMC
U-Boot 2016.03 (Apr 08 201…
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Having an issue-- found it with both 3.14.58 and 4.1.15 so it must be systemic?
Hardware:
Beaglebone black with USB wireless (Novatel USB760).
I'm running a simple script that sends an "AT" to the …
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Hi,
I made the Tinylcd35 and Touch(XPT2046).
Touch chipset(XPT2046) used GPIO3(SCL) of Rpi.
RTC(Real Time Clock) used GPIO3(SCL) and GPIO2(SDA) of Rpi.
I know that I2C can connect many device(Max. …