51 lines
1.5 KiB
ReStructuredText
51 lines
1.5 KiB
ReStructuredText
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.. zephyr:code-sample:: uart-passthrough
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:name: UART Passthrough
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:relevant-api: uart_interface
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Pass data directly between the console and another UART interface.
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Overview
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********
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This sample will virtually connect two UART interfaces together, as if Zephyr
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and the processor were not present. Data read from the console is transmitted
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to the "*other*" interface, and data read from the "*other*" interface is
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relayed to the console.
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The source code for this sample application can be found at:
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:zephyr_file:`samples/drivers/uart/passthrough`.
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Requirements
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************
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#. One UART interface, identified as Zephyr's console.
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#. A second UART connected to something interesting (e.g: GPS), identified as
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the chosen ``uart,passthrough`` device - the pins and baudrate will need to
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be configured correctly.
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Building and Running
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********************
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Build and flash the sample as follows, changing ``nucleo_l476rg`` for your
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board:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/uart/passthrough
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:board: nucleo_l476rg
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:goals: build flash
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:compact:
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Sample Output
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=============
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.. code-block:: console
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*** Booting Zephyr OS build zephyr-v3.5.0-2988-gb84bab36b941 ***
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Console Device: 0x8003940
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Other Device: 0x800392c
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$GNGSA,A,3,31,29,25,26,,,,,,,,,11.15,10.66,3.29,1*06
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$GNGSA,A,3,,,,,,,,,,,,,11.15,10.66,3.29,2*0F
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$GNGSA,A,3,,,,,,,,,,,,,11.15,10.66,3.29,3*0E
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$GNGSA,A,3,,,,,,,,,,,,,11.15,10.66,3.29,4*09
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$GNGSA,A,3,,,,,,,,,,,,,11.15,10.66,3.29,5*08
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