marinayelken wrote on Monday, July 03, 2017:
can someone help me for Freertos givesemaphore when an external interrupt occured one of the int pins. (int0 perhaps) the task waiting for semaphore will toggle a led on an output pin.
rtel wrote on Monday, July 03, 2017:
The following page contains example code that shows how to give a
semaphore from an interrupt.
http://www.freertos.org/a00124.html
However it is much more efficient to use a direct to task notification
in place of a semaphore.