rtc model

找到 http://nicegear.co.nz/raspberry-pi/high-precision-real-time-clock-for-raspberry-pi/

在ＴＢ购入，测试中。

参考：http://nicegear.co.nz/blog/using-an-i2c-real-time-clock-rtc-with-a-raspberry-pi/

待测。

关机。断电。

插上模块。

通电进入系统。（当然是raspbian）

1. #!/bin/sh
   
2. 
   
3. # Remove the module blacklist entry so it can be loaded on boot
   
4. sudo sed -i 's/^blacklist i2c-bcm2708/# blacklist i2c-bcm2708/' /etc/modprobe.d/raspi-blacklist.conf
   
5. 
   
6. # Load the module now
   
7. sudo modprobe i2c-bcm2708
   
8. 
   
9. # Notify Linux of the Dallas RTC device
   
10. echo ds1307 0x68 | sudo tee /sys/class/i2c-adapter/i2c-1/new_device
    
11. 
    
12. # Add the RTC device on boot
    
13. sodo sed -i '/^exit 0$/i\echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device' /etc/rc.local
    
14. 
    
15. exit

复制代码

https://github.com/fabletang/mydoc/blob/master/raspberrypi/install_rtc.txt