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stratum1ntp [2019/08/21 20:01] andrewstratum1ntp [2021/11/28 02:51] (current) andrew
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-====== Stratum 1 NTP Setup on Raspberry Pi By: Bun-Bun & guppy ======+====== Stratum 1 NTP Setup on Raspberry Pi ====== 
 +== By: Bun-Bun & guppy ==
  
   * This guides uses Uputronics Raspberry Pi+ GPS Expansion Board and a rpi3 or newer   * This guides uses Uputronics Raspberry Pi+ GPS Expansion Board and a rpi3 or newer
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     * Add the following to the bottom     * Add the following to the bottom
     * <code>enable_uart=1     * <code>enable_uart=1
 +dtoverlay=pi3-disable-wifi
 dtoverlay=pi3-disable-bt #same with rpi4 dtoverlay=pi3-disable-bt #same with rpi4
 #dtoverlay=pi3-miniuart-bt #if you want software BT #dtoverlay=pi3-miniuart-bt #if you want software BT
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   * https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/   * https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/
-  * Add nohz=off to the end of the line in /etc/cmdline.txt+  * Add nohz=off to the end of the line in /boot/cmdline.txt
   * configure system to run cpu full speed   * configure system to run cpu full speed
     * <code>apt -y install cpufrequtils     * <code>apt -y install cpufrequtils
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 apt -y autoremove apt -y autoremove
 apt clean apt clean
 +</code>
 +  * Set serial to low latency
 +    * <code>crontab -e
 +@reboot setserial /dev/ttyAMA0 low_latency
 </code> </code>
  
stratum1ntp.1566417697.txt.gz · Last modified: 2019/08/21 20:01 by andrew
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