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[README] Renamed all readme files to indicate markup format.

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Piotr Esden-Tempski
2015-01-19 19:19:42 -08:00
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examples/tiva/lm4f/stellaris-ek-lm4f120xl/uart_echo_interrupt/README.md Normal file
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README
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This example demonstrates the ease of setting up the UART with libopencm3, and
using UART interrupts. UART echo is achieved by echoing back received characters
from within the interrupt service routine. This has the advantage over using
blocking reads and writes that the main program loop is freed for other tasks.
The UART is set up as 921600-8N1.
PA0 is the Rx pin, and PA1 is the Tx pin (from the LM4F perspective). These
pins are connected to the CDCACM interface on the debug chip, so no hardware is
necessary to test this example. Just connect the debug USB cable and use a
terminal program to open the ACM port with 921600-8N1.
For example:
$ picocom /dev/ttyACM0 -b921600