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Merge pull request #355 from pctj101/pctj101-patch-tty-docs

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Add info on how to enable serial on 40 pin header on H3 boards
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Thomas Kaiser
2016-06-12 21:14:54 +02:00
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parent 544d4bceef b375a98984
commit c2f76fe1d7
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documentation/Enabling_hardware_features.md Normal file
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Enable Hardware Features
========================
Some boards require some manual configuration to turn on/off certain features
In some cases, the procedure is "less than obvious", so we document some basic examples here.
# Orange Pi Lite
## Enable serial /dev/ttyS3 on pins 8 and 10 of the 40 pin header
Update the FEX configuration (which is compiled into a .bin) located at /boot/script.bin
Decompile .bin to .fex
```
cd /boot
bin2fex script.bin > custom.fex
rm script.bin # only removes symbolic link
```
Edit .fex file
```
[uart3]
uart_used = 1 # Change from 0 to 1
uart_port = 3
uart_type = 2 # In this case we have a 2 pin UART
uart_tx = port:PA13<3><1><default><default>
uart_rx = port:PA14<3><1><default><default>
```
Compile .fex to .bin
```
fex2bin custom.fex > script.bin
```
Reboot
Notice that /dev/ttyS3 appears. That is your new UART device.
****