/* | |
FreeRTOS V6.0.4 - Copyright (C) 2010 Real Time Engineers Ltd. | |
*************************************************************************** | |
* * | |
* If you are: * | |
* * | |
* + New to FreeRTOS, * | |
* + Wanting to learn FreeRTOS or multitasking in general quickly * | |
* + Looking for basic training, * | |
* + Wanting to improve your FreeRTOS skills and productivity * | |
* * | |
* then take a look at the FreeRTOS eBook * | |
* * | |
* "Using the FreeRTOS Real Time Kernel - a Practical Guide" * | |
* http://www.FreeRTOS.org/Documentation * | |
* * | |
* A pdf reference manual is also available. Both are usually delivered * | |
* to your inbox within 20 minutes to two hours when purchased between 8am * | |
* and 8pm GMT (although please allow up to 24 hours in case of * | |
* exceptional circumstances). Thank you for your support! * | |
* * | |
*************************************************************************** | |
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 exception 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. See the GNU General Public License for | |
more details. You should have received a copy of the GNU General Public | |
License and the FreeRTOS license exception along with FreeRTOS; if not it | |
can be viewed here: http://www.freertos.org/a00114.html and also obtained | |
by writing to Richard Barry, contact details for whom are available on the | |
FreeRTOS WEB site. | |
1 tab == 4 spaces! | |
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. | |
*/ | |
/*----------------------------------------------------------- | |
* Characters on the LCD are used to simulate LED's. In this case the 'ParTest' | |
* is really operating on the LCD display. | |
*-----------------------------------------------------------*/ | |
/* | |
* This demo is configured to execute on the ES449 prototyping board from | |
* SoftBaugh. The ES449 has a built in LCD display and a single built in user | |
* LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks | |
* toggle '*' characters on the LCD. The left most '*' represents LED 0, the | |
* next LED 1, etc. | |
* | |
* There is a single genuine on board LED referenced as LED 10. | |
*/ | |
/* Standard includes. */ | |
#include <signal.h> | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
#include "task.h" | |
/* Demo application includes. */ | |
#include "partest.h" | |
/* Constants required to setup the LCD. */ | |
#define LCD_DIV_64 5 | |
/* Constants required to access the "LED's". The LED segments are turned on | |
and off to generate '*' characters. */ | |
#define partstNUM_LEDS ( ( unsigned char ) 6 ) | |
#define partstSEGMENTS_ON ( ( unsigned char ) 0x0f ) | |
#define partstSEGMENTS_OFF ( ( unsigned char ) 0x00 ) | |
/* The LED number of the real on board LED, rather than a simulated LED. */ | |
#define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 ) | |
#define mainON_BOARD_LED_BIT ( ( unsigned char ) 0x01 ) | |
/* The LCD segments used to generate the '*' characters for LED's 0 to 5. */ | |
unsigned char * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned char * )0xa4, | |
( unsigned char * )0xa2, | |
( unsigned char * )0xa0, | |
( unsigned char * )0x9e, | |
( unsigned char * )0x9c, | |
( unsigned char * )0x9a }; | |
unsigned char * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned char * )0xa3, | |
( unsigned char * )0xa1, | |
( unsigned char * )0x9f, | |
( unsigned char * )0x9d, | |
( unsigned char * )0x9b, | |
( unsigned char * )0x99 }; | |
/* | |
* Toggle the single genuine built in LED. | |
*/ | |
static void prvToggleOnBoardLED( void ); | |
/*-----------------------------------------------------------*/ | |
void vParTestInitialise( void ) | |
{ | |
/* Initialise the LCD hardware. */ | |
/* Used for the onboard LED. */ | |
P1DIR = 0x01; | |
// Setup Basic Timer for LCD operation | |
BTCTL = (LCD_DIV_64+0x23); | |
// Setup port functions | |
P1SEL = 0x32; | |
P2SEL = 0x00; | |
P3SEL = 0x00; | |
P4SEL = 0xFC; | |
P5SEL = 0xFF; | |
/* Initialise all segments to off. */ | |
LCDM1 = partstSEGMENTS_OFF; | |
LCDM2 = partstSEGMENTS_OFF; | |
LCDM3 = partstSEGMENTS_OFF; | |
LCDM4 = partstSEGMENTS_OFF; | |
LCDM5 = partstSEGMENTS_OFF; | |
LCDM6 = partstSEGMENTS_OFF; | |
LCDM7 = partstSEGMENTS_OFF; | |
LCDM8 = partstSEGMENTS_OFF; | |
LCDM9 = partstSEGMENTS_OFF; | |
LCDM10 = partstSEGMENTS_OFF; | |
LCDM11 = partstSEGMENTS_OFF; | |
LCDM12 = partstSEGMENTS_OFF; | |
LCDM13 = partstSEGMENTS_OFF; | |
LCDM14 = partstSEGMENTS_OFF; | |
LCDM15 = partstSEGMENTS_OFF; | |
LCDM16 = partstSEGMENTS_OFF; | |
LCDM17 = partstSEGMENTS_OFF; | |
LCDM18 = partstSEGMENTS_OFF; | |
LCDM19 = partstSEGMENTS_OFF; | |
LCDM20 = partstSEGMENTS_OFF; | |
/* Setup LCD control. */ | |
LCDCTL = (LCDSG0_7|LCD4MUX|LCDON); | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue ) | |
{ | |
/* Set or clear the output [in this case show or hide the '*' character. */ | |
if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS ) | |
{ | |
vTaskSuspendAll(); | |
{ | |
if( xValue ) | |
{ | |
/* Turn on the segments required to show the '*'. */ | |
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON; | |
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON; | |
} | |
else | |
{ | |
/* Turn off all the segments. */ | |
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; | |
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; | |
} | |
} | |
xTaskResumeAll(); | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
void vParTestToggleLED( unsigned portBASE_TYPE uxLED ) | |
{ | |
if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS ) | |
{ | |
vTaskSuspendAll(); | |
{ | |
/* If the '*' is already showing - hide it. If it is not already | |
showing then show it. */ | |
if( *( ucRHSSegments[ uxLED ] ) ) | |
{ | |
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; | |
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF; | |
} | |
else | |
{ | |
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON; | |
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON; | |
} | |
} | |
xTaskResumeAll(); | |
} | |
else | |
{ | |
if( uxLED == partstON_BOARD_LED ) | |
{ | |
/* The request related to the genuine on board LED. */ | |
prvToggleOnBoardLED(); | |
} | |
} | |
} | |
/*-----------------------------------------------------------*/ | |
static void prvToggleOnBoardLED( void ) | |
{ | |
static unsigned short sState = pdFALSE; | |
/* Toggle the state of the single genuine on board LED. */ | |
if( sState ) | |
{ | |
P1OUT |= mainON_BOARD_LED_BIT; | |
} | |
else | |
{ | |
P1OUT &= ~mainON_BOARD_LED_BIT; | |
} | |
sState = !sState; | |
} | |
/*-----------------------------------------------------------*/ | |