| 1 |
584 |
jeremybenn |
;/*
|
| 2 |
|
|
; FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
|
| 3 |
|
|
;
|
| 4 |
|
|
; ***************************************************************************
|
| 5 |
|
|
; * *
|
| 6 |
|
|
; * If you are: *
|
| 7 |
|
|
; * *
|
| 8 |
|
|
; * + New to FreeRTOS, *
|
| 9 |
|
|
; * + Wanting to learn FreeRTOS or multitasking in general quickly *
|
| 10 |
|
|
; * + Looking for basic training, *
|
| 11 |
|
|
; * + Wanting to improve your FreeRTOS skills and productivity *
|
| 12 |
|
|
; * *
|
| 13 |
|
|
; * then take a look at the FreeRTOS books - available as PDF or paperback *
|
| 14 |
|
|
; * *
|
| 15 |
|
|
; * "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
|
| 16 |
|
|
; * http://www.FreeRTOS.org/Documentation *
|
| 17 |
|
|
; * *
|
| 18 |
|
|
; * A pdf reference manual is also available. Both are usually delivered *
|
| 19 |
|
|
; * to your inbox within 20 minutes to two hours when purchased between 8am *
|
| 20 |
|
|
; * and 8pm GMT (although please allow up to 24 hours in case of *
|
| 21 |
|
|
; * exceptional circumstances). Thank you for your support! *
|
| 22 |
|
|
; * *
|
| 23 |
|
|
; ***************************************************************************
|
| 24 |
|
|
;
|
| 25 |
|
|
; This file is part of the FreeRTOS distribution.
|
| 26 |
|
|
;
|
| 27 |
|
|
; FreeRTOS is free software; you can redistribute it and/or modify it under
|
| 28 |
|
|
; the terms of the GNU General Public License (version 2) as published by the
|
| 29 |
|
|
; Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
|
| 30 |
|
|
; ***NOTE*** The exception to the GPL is included to allow you to distribute
|
| 31 |
|
|
; a combined work that includes FreeRTOS without being obliged to provide the
|
| 32 |
|
|
; source code for proprietary components outside of the FreeRTOS kernel.
|
| 33 |
|
|
; FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
|
| 34 |
|
|
; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
| 35 |
|
|
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
| 36 |
|
|
; more details. You should have received a copy of the GNU General Public
|
| 37 |
|
|
; License and the FreeRTOS license exception along with FreeRTOS; if not it
|
| 38 |
|
|
; can be viewed here: http://www.freertos.org/a00114.html and also obtained
|
| 39 |
|
|
; by writing to Richard Barry, contact details for whom are available on the
|
| 40 |
|
|
; FreeRTOS WEB site.
|
| 41 |
|
|
;
|
| 42 |
|
|
; 1 tab == 4 spaces!
|
| 43 |
|
|
;
|
| 44 |
|
|
; http://www.FreeRTOS.org - Documentation, latest information, license and
|
| 45 |
|
|
; contact details.
|
| 46 |
|
|
;
|
| 47 |
|
|
; http://www.SafeRTOS.com - A version that is certified for use in safety
|
| 48 |
|
|
; critical systems.
|
| 49 |
|
|
;
|
| 50 |
|
|
; http://www.OpenRTOS.com - Commercial support, development, porting,
|
| 51 |
|
|
; licensing and training services.
|
| 52 |
|
|
;*/
|
| 53 |
|
|
|
| 54 |
|
|
;
|
| 55 |
|
|
; This file defines a wrapper for the interrupt generated each time the button
|
| 56 |
|
|
; on the target board is pushed. The asm wrapper is used to save and restore
|
| 57 |
|
|
; the task context as a context switch may occur within the ISR itself.
|
| 58 |
|
|
; The C portion of the ISR is defined within ButtonTask.c.
|
| 59 |
|
|
;
|
| 60 |
|
|
|
| 61 |
|
|
; Include the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
|
| 62 |
|
|
#include "ISR_Support.h"
|
| 63 |
|
|
|
| 64 |
|
|
PUBLIC vButtonISRWrapper
|
| 65 |
|
|
EXTERN vButtonISRHandler
|
| 66 |
|
|
|
| 67 |
|
|
RSEG CODE:CODE
|
| 68 |
|
|
|
| 69 |
|
|
vButtonISRWrapper:
|
| 70 |
|
|
; Save the current task context.
|
| 71 |
|
|
portSAVE_CONTEXT
|
| 72 |
|
|
|
| 73 |
|
|
; Call the C portion of the ISR.
|
| 74 |
|
|
call vButtonISRHandler
|
| 75 |
|
|
|
| 76 |
|
|
; Restore the context of whichever task is to run next - which might be
|
| 77 |
|
|
; different from the task that was originally interrupted.
|
| 78 |
|
|
portRESTORE_CONTEXT
|
| 79 |
|
|
reti
|
| 80 |
|
|
|
| 81 |
|
|
|
| 82 |
|
|
|
| 83 |
|
|
; Place the ISR into the vector table.
|
| 84 |
|
|
COMMON INTVEC:CODE:ROOT(1)
|
| 85 |
|
|
ORG 8
|
| 86 |
|
|
`??vButtonISRWrapper??INTVEC 8`:
|
| 87 |
|
|
DW vButtonISRWrapper
|
| 88 |
|
|
|
| 89 |
|
|
|
| 90 |
|
|
END
|
