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le_potato [2023/04/08 22:35] – [Enable i2c and the DS3231] millerjsle_potato [2024/11/14 02:30] (current) – external edit 127.0.0.1
Line 15: Line 15:
   - To persist after reboot, merge: ''sudo ldto merge uart-a''   - To persist after reboot, merge: ''sudo ldto merge uart-a''
  
 +Somewhat confusingly, both ''uart-a'' and ''uarta'' exist as device tree overlays. ''uarta'' maps to ''uart-a-rts-cts'' which uses pins 16 and 18 for hardware flow control.
 ==== Enable i2c and the DS3231 ==== ==== Enable i2c and the DS3231 ====
 Specifically, SDA and SCL pins on GPIOs 3 & 4. Specifically, SDA and SCL pins on GPIOs 3 & 4.
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 [ 4024.488196] rtc-ds1307 1-0068: registered as rtc0 [ 4024.488196] rtc-ds1307 1-0068: registered as rtc0
 [ 4024.489394] rtc-ds1307 1-0068: setting system clock to 2000-01-01T01:07:25 UTC (946688845)</code> [ 4024.489394] rtc-ds1307 1-0068: setting system clock to 2000-01-01T01:07:25 UTC (946688845)</code>
-  - Merge to save: +  - Merge to save: ''sudo ldto merge i2c-ao ; sudo ldto merge i2c-ao-ds3231''
  
le_potato.1680993308.txt.gz · Last modified: 2024/11/14 02:30 (external edit)

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