33 lines
1.1 KiB
Markdown
33 lines
1.1 KiB
Markdown
# Connecting RPi3 UART
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## Using cp2104 usb-to-ttl converter
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Download drivers from [SiLabs driver page](https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers).
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Install `minicom`: `brew install minicom`
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Configure minicom to use `/dev/tty.SLAB_USBtoUART` port. On macOS Big Sur it might be `/dev/tty.usbserial-019586E3` or similar depending on the serial number of the adapter.
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Connect RPi wires to cp2014:
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_NB:_ Swap the TXD and RXD wires. I.e. RXD pin of CP2104 should go to TXD pin on RPi and vice versa.
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```
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UART0
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RPi Func | RPi GPIO | PIN # | MODE | CP2104 Pin | Wire color
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----------+------------+---------+--------+------------+------------
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RXD0 | GPIO15 | 10 | Alt0 | TXD | Red
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TXD0 | GPIO14 | 8 | Alt0 | RXD | Brown
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```
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```
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MiniUart (UART1)
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RPi Func | RPi GPIO | PIN # | MODE | CP2104 Pin | Wire color
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----------+------------+---------+--------+------------+------------
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RXD1 | GPIO15 | 10 | Alt5 | TXD | Red
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TXD1 | GPIO14 | 8 | Alt5 | RXD | Brown
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GND | GND | 6 | | GND | Green
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```
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