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Testing
This board does support a testbench. This testbench supports simulated mcp23s17 peripheral connected to the board.
You can run the testbench example as follows:
west build -p -b custom_board samples/drivers/gpio/mcp23s17 -t testbench
Then point your browser to localhost:8000 to view the testbench interface.
To interact with the USART use “uart_connect sybus.usart2” in the monitor window.