I then decided to use the other SD Card with a brand new Arch Linux on it. Put CR2032 battery in in DS3231 RTC module Connect jumper wire from. Raspberry Pis IC being in 3.3V, I tried to use a cheap RTC Clock using a. ![]() "Įcho "NTP time is syncronised, overwriting RTC-time. You will need to do some light soldering to install the pin headers onto the modules. If *\(yes\).*/\1/Ip')" ] thenĮcho "NTP time is NOT syncronised, getting RTC-time. If thenĮcho "Resetting RTC with current system time. Step 3: Use this script whenever you need to sync the time - add it to the cron, if you want. Navigate to Driver -> Real Time Clock -> RTC-RV8803 / Epson RX8900 and set the kernel module. Step 2: Install i2c-tools apt-get install i2c-tools make ARCHarm CROSSCOMPILEarm-linux-gnueabihf- menuconfig. Step 1: Add I2C overlay to /boot/uEnv.txtĮxample: overlays=rk3308-uart0 rk3308-i2c1 The chip was DS1307, should work on other chips with the same memory structure. I used a DS3231 RTC module like this: DS3231. This script was tested on a fresh Debian Buster install, kernel version 4.4.143-69. This post details how to add an external battery backed RTC module connected to the HDMI port. The guy at EEVBlog used the script as custom service, in kernel mode (we don’t need to dig so deep).
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