31 lines
1.4 KiB
Plaintext
31 lines
1.4 KiB
Plaintext
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*****************************************************************************
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** ChibiOS/RT port for ARM-Cortex-M4 STM32F429. **
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*****************************************************************************
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** TARGET **
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The demo runs on an ST STM32F429I-Discovery board.
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** The Demo **
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This demo shows how to use a triple buffer handler, with one writer thread and
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one reader thread.
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The writer thread puts a character into the current back buffer, thus swapping
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the back buffer with the orphan buffer for a new write. The writer then sleeps
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for a specified delay in milliseconds.
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The reader thread gets waits (if there is a timeout) until the orphan buffer
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contains available data, becoming the new front buffer. The character is read
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from the new front buffer and printed. The reader then sleeps for a specified
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delay in milliseconds.
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A simple command shell is activated on virtual serial port SD1 or SDU1.
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Via command line it is possible to start, stop, set the delay, and set the
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thread priority of the reader and writer threads.
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The reader can also be assigned a wait timeout in milliseconds, with special
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cases of "*" for infinite timeout, and "-" (or 0 ms) for none.
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** Build Procedure **
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The demo has been tested by using the free GNU Tools ARM Embedded toolchain
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and ChibiStudio. Just modify the TRGT line in the makefile in order to use
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different GCC toolchains.
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