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