/* | |
FreeRTOS V8.2.3 - Copyright (C) 2015 Real Time Engineers Ltd. | |
All rights reserved | |
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. | |
This file is part of the FreeRTOS distribution. | |
FreeRTOS 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 modification to the GPL is included to allow you to !<< | |
>>! distribute a combined work that includes FreeRTOS without being !<< | |
>>! obliged to provide the source code for proprietary components !<< | |
>>! outside of the FreeRTOS kernel. !<< | |
*************************************************************************** | |
FreeRTOS 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. Full license text is available on the following | |
link: http://www.freertos.org/a00114.html | |
*************************************************************************** | |
* * | |
* FreeRTOS provides completely free yet professionally developed, * | |
* robust, strictly quality controlled, supported, and cross * | |
* platform software that is more than just the market leader, it * | |
* is the industry's de facto standard. * | |
* * | |
* Help yourself get started quickly while simultaneously helping * | |
* to support the FreeRTOS project by purchasing a FreeRTOS * | |
* tutorial book, reference manual, or both: * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
*************************************************************************** | |
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading | |
the FAQ page "My application does not run, what could be wrong?". Have you | |
defined configASSERT()? | |
http://www.FreeRTOS.org/support - In return for receiving this top quality | |
embedded software for free we request you assist our global community by | |
participating in the support forum. | |
http://www.FreeRTOS.org/training - Investing in training allows your team to | |
be as productive as possible as early as possible. Now you can receive | |
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers | |
Ltd, and the world's leading authority on the world's leading RTOS. | |
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, | |
including FreeRTOS+Trace - an indispensable productivity tool, a DOS | |
compatible FAT file system, and our tiny thread aware UDP/IP stack. | |
http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. | |
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. | |
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High | |
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS | |
licenses offer ticketed support, indemnification and commercial middleware. | |
http://www.SafeRTOS.com - High Integrity Systems also provide a safety | |
engineered and independently SIL3 certified version for use in safety and | |
mission critical applications that require provable dependability. | |
1 tab == 4 spaces! | |
*/ | |
/* | |
Changes from V1.01: | |
+ Types used updated. | |
+ Add vParTestToggleLED(); | |
Changes from V2.0.0 | |
+ Use scheduler suspends in place of critical sections. | |
*/ | |
#include "FreeRTOS.h" | |
#include "partest.h" | |
#include "task.h" | |
#define partstALL_OUTPUTS_OFF ( ( unsigned char ) 0x00 ) | |
#define partstMAX_OUTPUT_LED ( ( unsigned char ) 7 ) | |
/*lint -e956 File scope parameters okay here. */ | |
static unsigned short usPortAddress = partstDEFAULT_PORT_ADDRESS; | |
static volatile unsigned char ucCurrentOutputValue = partstALL_OUTPUTS_OFF; | |
/*lint +e956 */ | |
/*----------------------------------------------------------- | |
* Simple parallel port IO routines | |
*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
ucCurrentOutputValue = partstALL_OUTPUTS_OFF; | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) partstALL_OUTPUTS_OFF ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, portBASE_TYPE xValue ) | |
{ | |
unsigned char ucBit = ( unsigned char ) 1; | |
if( uxLED <= partstMAX_OUTPUT_LED ) | |
{ | |
ucBit <<= uxLED; | |
} | |
vTaskSuspendAll(); | |
{ | |
if( xValue == pdTRUE ) | |
{ | |
ucBit ^= ( unsigned char ) 0xff; | |
ucCurrentOutputValue &= ucBit; | |
} | |
else | |
{ | |
ucCurrentOutputValue |= ucBit; | |
} | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue ); | |
} | |
xTaskResumeAll(); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
unsigned char ucBit; | |
if( uxLED <= partstMAX_OUTPUT_LED ) | |
{ | |
ucBit = ( ( unsigned char ) 1 ) << uxLED; | |
vTaskSuspendAll(); | |
{ | |
if( ucCurrentOutputValue & ucBit ) | |
{ | |
ucCurrentOutputValue &= ~ucBit; | |
} | |
else | |
{ | |
ucCurrentOutputValue |= ucBit; | |
} | |
portOUTPUT_BYTE( usPortAddress, ( unsigned ) ucCurrentOutputValue ); | |
} | |
xTaskResumeAll(); | |
} | |
} | |