esp-open-rtos/FreeRTOS
Angus Gratton 89c481c606 Simplify interrupt and RTOS timer tick handlers
RTOS Timer tick handler is now the same as any other ISR.

This causes a few subtle behaviour changes that seem OK but are worth noting:

* RTOS tick handler sdk__xt_timer_int() is now called from one stack
  frame deeper (inside _xt_isr_handler()), whereas before it was called
  from the level above in UserHandleInterrupt. I can't see any way that
  the extra ~40 bytes of stack use here hurt, though.

* sdk__xt_timer_int() was previous called after all other interrupts
  flagged in the handler, now it's called before the TIMER FRC1 & FRC2
  handlers. The tick handler doesn't appear to do anything particularly
  timing intensive, though.

* GPIO interrupt (value 3) is now lower priority than the SPI
  interrupt (value 2), whereas before it would have been called before
  SPI if both interrupts triggered at once.
2015-09-29 13:21:04 +10:00
..
License Unmodified cross-platform parts of FreeRTOS 7.5.2 (Demos and 2015-04-30 11:01:12 +10:00
Source Simplify interrupt and RTOS timer tick handlers 2015-09-29 13:21:04 +10:00
component.mk Rework component makefiles to have a default <component>_ROOT 2015-09-08 09:59:59 +10:00
readme.txt Unmodified cross-platform parts of FreeRTOS 7.5.2 (Demos and 2015-04-30 11:01:12 +10:00

Directories:

+ The FreeRTOS/Source directory contains the FreeRTOS source code, and contains
  its own readme file.

+ The FreeRTOS/Demo directory contains a demo application for every official
FreeRTOS port, and contains its own readme file.

+ See http://www.freertos.org/a00017.html for full details of the directory 
  structure and information on locating the files you require.

The easiest way to use FreeRTOS is to start with one of the pre-configured demo 
application projects (found in the FreeRTOS/Demo directory).  That way you will
have the correct FreeRTOS source files included, and the correct include paths
configured.  Once a demo application is building and executing you can remove
the demo application file, and start to add in your own application source
files.

See also -
http://www.freertos.org/FreeRTOS-quick-start-guide.html
http://www.freertos.org/FAQHelp.html