|
|
|
;/*
|
|
|
|
; FreeRTOS.org V5.4.0 - Copyright (C) 2003-2009 Richard Barry.
|
|
|
|
;
|
|
|
|
; This file is part of the FreeRTOS.org distribution.
|
|
|
|
;
|
|
|
|
; FreeRTOS.org is free software; you can redistribute it and/or modify it
|
|
|
|
; under the terms of the GNU General Public License (version 2) as published
|
|
|
|
; by the Free Software Foundation and modified by the FreeRTOS exception.
|
|
|
|
; **NOTE** The exception to the GPL is included to allow you to distribute a
|
|
|
|
; combined work that includes FreeRTOS.org without being obliged to provide
|
|
|
|
; the source code for any proprietary components. Alternative commercial
|
|
|
|
; license and support terms are also available upon request. See the
|
|
|
|
; licensing section of http://www.FreeRTOS.org for full details.
|
|
|
|
;
|
|
|
|
; FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
|
|
|
|
; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
|
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
|
|
; more details.
|
|
|
|
;
|
|
|
|
; You should have received a copy of the GNU General Public License along
|
|
|
|
; with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
|
|
|
|
; Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
|
|
;
|
|
|
|
;
|
|
|
|
; ***************************************************************************
|
|
|
|
; * *
|
|
|
|
; * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
|
|
|
|
; * *
|
|
|
|
; * This is a concise, step by step, 'hands on' guide that describes both *
|
|
|
|
; * general multitasking concepts and FreeRTOS specifics. It presents and *
|
|
|
|
; * explains numerous examples that are written using the FreeRTOS API. *
|
|
|
|
; * Full source code for all the examples is provided in an accompanying *
|
|
|
|
; * .zip file. *
|
|
|
|
; * *
|
|
|
|
; ***************************************************************************
|
|
|
|
;
|
|
|
|
; 1 tab == 4 spaces!
|
|
|
|
;
|
|
|
|
; Please ensure to read the configuration and relevant port sections of the
|
|
|
|
; online documentation.
|
|
|
|
;
|
|
|
|
; http://www.FreeRTOS.org - Documentation, latest information, license and
|
|
|
|
; contact details.
|
|
|
|
;
|
|
|
|
; http://www.SafeRTOS.com - A version that is certified for use in safety
|
|
|
|
; critical systems.
|
|
|
|
;
|
|
|
|
; http://www.OpenRTOS.com - Commercial support, development, porting,
|
|
|
|
; licensing and training services.
|
|
|
|
;*/
|
|
|
|
|
|
|
|
;
|
|
|
|
; This file defines a wrapper for the interrupt generated each time the button
|
|
|
|
; on the target board is pushed. The asm wrapper is used to save and restore
|
|
|
|
; the task context as a context switch may occur within the ISR itself.
|
|
|
|
; The C portion of the ISR is defined within ButtonTask.c.
|
|
|
|
;
|
|
|
|
|
|
|
|
; Include the portSAVE_CONTEXT and portRESTORE_CONTEXT macros.
|
|
|
|
#include "ISR_Support.h"
|
|
|
|
|
|
|
|
PUBLIC vButtonISRWrapper
|
|
|
|
EXTERN vButtonISRHandler
|
|
|
|
|
|
|
|
RSEG CODE:CODE
|
|
|
|
|
|
|
|
vButtonISRWrapper:
|
|
|
|
; Save the current task context.
|
|
|
|
portSAVE_CONTEXT
|
|
|
|
|
|
|
|
; Call the C portion of the ISR.
|
|
|
|
call vButtonISRHandler
|
|
|
|
|
|
|
|
; Restore the context of whichever task is to run next - which might be
|
|
|
|
; different from the task that was originally interrupted.
|
|
|
|
portRESTORE_CONTEXT
|
|
|
|
reti
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; Place the ISR into the vector table.
|
|
|
|
COMMON INTVEC:CODE:ROOT(1)
|
|
|
|
ORG 8
|
|
|
|
`??vButtonISRWrapper??INTVEC 8`:
|
|
|
|
DW vButtonISRWrapper
|
|
|
|
|
|
|
|
|
|
|
|
END
|