d90d72291a
This example takes advantage of the big Flash memory space and uses the standard library functions printf, and fgets to implement a simple interactive application.
22 lines
875 B
Markdown
22 lines
875 B
Markdown
# README
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This program demonstrates using the standard I/O and library
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functions built into newlib on the Nucleo F411RE eval board.
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Normally the functions would seem to be extravagant for an
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embedded application but the F4 series has a lot of flash
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(512K in the case of the STM32F411RE) and so you can use this
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to make it easier to work with.
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This example asks you to enter a number, 1 or greater, and
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it uses that number as the delay constant when blinking the LED
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on the Nucleo board. It blinks the LED 1000 times so if you
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choose a large number it will take a while to finish.
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100000 is reasonably fast, 500000 is quite slow.
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There is also a simple buffered input routine in the code so
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you can edit the number as you are entering it. The ^H or DEL
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keys will delete a character, ^U will erase the line, and
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^W will delete the last word (defined by space characters).
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