| 1 |
583 |
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 |
|
|
* Characters on the LCD are used to simulate LED's. In this case the 'ParTest'
|
| 56 |
|
|
* is really operating on the LCD display.
|
| 57 |
|
|
*-----------------------------------------------------------*/
|
| 58 |
|
|
|
| 59 |
|
|
/*
|
| 60 |
|
|
* This demo is configured to execute on the ES449 prototyping board from
|
| 61 |
|
|
* SoftBaugh. The ES449 has a built in LCD display and a single built in user
|
| 62 |
|
|
* LED. Therefore, in place of flashing an LED, the 'flash' and 'check' tasks
|
| 63 |
|
|
* toggle '*' characters on the LCD. The left most '*' represents LED 0, the
|
| 64 |
|
|
* next LED 1, etc.
|
| 65 |
|
|
*
|
| 66 |
|
|
* There is a single genuine on board LED referenced as LED 10.
|
| 67 |
|
|
*/
|
| 68 |
|
|
|
| 69 |
|
|
|
| 70 |
|
|
/* Scheduler includes. */
|
| 71 |
|
|
#include "FreeRTOS.h"
|
| 72 |
|
|
#include "task.h"
|
| 73 |
|
|
|
| 74 |
|
|
/* Demo application includes. */
|
| 75 |
|
|
#include "partest.h"
|
| 76 |
|
|
|
| 77 |
|
|
/* Constants required to setup the LCD. */
|
| 78 |
|
|
#define LCD_DIV_64 5
|
| 79 |
|
|
|
| 80 |
|
|
/* Constants required to access the "LED's". The LED segments are turned on
|
| 81 |
|
|
and off to generate '*' characters. */
|
| 82 |
|
|
#define partstNUM_LEDS ( ( unsigned portCHAR ) 6 )
|
| 83 |
|
|
#define partstSEGMENTS_ON ( ( unsigned portCHAR ) 0x0f )
|
| 84 |
|
|
#define partstSEGMENTS_OFF ( ( unsigned portCHAR ) 0x00 )
|
| 85 |
|
|
|
| 86 |
|
|
/* The LED number of the real on board LED, rather than a simulated LED. */
|
| 87 |
|
|
#define partstON_BOARD_LED ( ( unsigned portBASE_TYPE ) 10 )
|
| 88 |
|
|
#define mainON_BOARD_LED_BIT ( ( unsigned portCHAR ) 0x01 )
|
| 89 |
|
|
|
| 90 |
|
|
/* The LCD segments used to generate the '*' characters for LED's 0 to 5. */
|
| 91 |
|
|
unsigned portCHAR * const ucRHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa4,
|
| 92 |
|
|
( unsigned portCHAR * )0xa2,
|
| 93 |
|
|
( unsigned portCHAR * )0xa0,
|
| 94 |
|
|
( unsigned portCHAR * )0x9e,
|
| 95 |
|
|
( unsigned portCHAR * )0x9c,
|
| 96 |
|
|
( unsigned portCHAR * )0x9a };
|
| 97 |
|
|
|
| 98 |
|
|
unsigned portCHAR * const ucLHSSegments[ partstNUM_LEDS ] = { ( unsigned portCHAR * )0xa3,
|
| 99 |
|
|
( unsigned portCHAR * )0xa1,
|
| 100 |
|
|
( unsigned portCHAR * )0x9f,
|
| 101 |
|
|
( unsigned portCHAR * )0x9d,
|
| 102 |
|
|
( unsigned portCHAR * )0x9b,
|
| 103 |
|
|
( unsigned portCHAR * )0x99 };
|
| 104 |
|
|
|
| 105 |
|
|
/*
|
| 106 |
|
|
* Toggle the single genuine built in LED.
|
| 107 |
|
|
*/
|
| 108 |
|
|
static void prvToggleOnBoardLED( void );
|
| 109 |
|
|
|
| 110 |
|
|
/*-----------------------------------------------------------*/
|
| 111 |
|
|
|
| 112 |
|
|
void vParTestInitialise( void )
|
| 113 |
|
|
{
|
| 114 |
|
|
/* Initialise the LCD hardware. */
|
| 115 |
|
|
|
| 116 |
|
|
/* Used for the onboard LED. */
|
| 117 |
|
|
P1DIR = 0x01;
|
| 118 |
|
|
|
| 119 |
|
|
// Setup Basic Timer for LCD operation
|
| 120 |
|
|
BTCTL = (LCD_DIV_64+0x23);
|
| 121 |
|
|
|
| 122 |
|
|
// Setup port functions
|
| 123 |
|
|
P1SEL = 0x32;
|
| 124 |
|
|
P2SEL = 0x00;
|
| 125 |
|
|
P3SEL = 0x00;
|
| 126 |
|
|
P4SEL = 0xFC;
|
| 127 |
|
|
P5SEL = 0xFF;
|
| 128 |
|
|
|
| 129 |
|
|
/* Initialise all segments to off. */
|
| 130 |
|
|
LCDM1 = partstSEGMENTS_OFF;
|
| 131 |
|
|
LCDM2 = partstSEGMENTS_OFF;
|
| 132 |
|
|
LCDM3 = partstSEGMENTS_OFF;
|
| 133 |
|
|
LCDM4 = partstSEGMENTS_OFF;
|
| 134 |
|
|
LCDM5 = partstSEGMENTS_OFF;
|
| 135 |
|
|
LCDM6 = partstSEGMENTS_OFF;
|
| 136 |
|
|
LCDM7 = partstSEGMENTS_OFF;
|
| 137 |
|
|
LCDM8 = partstSEGMENTS_OFF;
|
| 138 |
|
|
LCDM9 = partstSEGMENTS_OFF;
|
| 139 |
|
|
LCDM10 = partstSEGMENTS_OFF;
|
| 140 |
|
|
LCDM11 = partstSEGMENTS_OFF;
|
| 141 |
|
|
LCDM12 = partstSEGMENTS_OFF;
|
| 142 |
|
|
LCDM13 = partstSEGMENTS_OFF;
|
| 143 |
|
|
LCDM14 = partstSEGMENTS_OFF;
|
| 144 |
|
|
LCDM15 = partstSEGMENTS_OFF;
|
| 145 |
|
|
LCDM16 = partstSEGMENTS_OFF;
|
| 146 |
|
|
LCDM17 = partstSEGMENTS_OFF;
|
| 147 |
|
|
LCDM18 = partstSEGMENTS_OFF;
|
| 148 |
|
|
LCDM19 = partstSEGMENTS_OFF;
|
| 149 |
|
|
LCDM20 = partstSEGMENTS_OFF;
|
| 150 |
|
|
|
| 151 |
|
|
/* Setup LCD control. */
|
| 152 |
|
|
LCDCTL = (LCDSG0_7|LCD4MUX|LCDON);
|
| 153 |
|
|
}
|
| 154 |
|
|
/*-----------------------------------------------------------*/
|
| 155 |
|
|
|
| 156 |
|
|
void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
|
| 157 |
|
|
{
|
| 158 |
|
|
/* Set or clear the output [in this case show or hide the '*' character. */
|
| 159 |
|
|
if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
|
| 160 |
|
|
{
|
| 161 |
|
|
vTaskSuspendAll();
|
| 162 |
|
|
{
|
| 163 |
|
|
if( xValue )
|
| 164 |
|
|
{
|
| 165 |
|
|
/* Turn on the segments required to show the '*'. */
|
| 166 |
|
|
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
|
| 167 |
|
|
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
|
| 168 |
|
|
}
|
| 169 |
|
|
else
|
| 170 |
|
|
{
|
| 171 |
|
|
/* Turn off all the segments. */
|
| 172 |
|
|
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
|
| 173 |
|
|
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
|
| 174 |
|
|
}
|
| 175 |
|
|
}
|
| 176 |
|
|
xTaskResumeAll();
|
| 177 |
|
|
}
|
| 178 |
|
|
}
|
| 179 |
|
|
/*-----------------------------------------------------------*/
|
| 180 |
|
|
|
| 181 |
|
|
void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
|
| 182 |
|
|
{
|
| 183 |
|
|
if( uxLED < ( portBASE_TYPE ) partstNUM_LEDS )
|
| 184 |
|
|
{
|
| 185 |
|
|
vTaskSuspendAll();
|
| 186 |
|
|
{
|
| 187 |
|
|
/* If the '*' is already showing - hide it. If it is not already
|
| 188 |
|
|
showing then show it. */
|
| 189 |
|
|
if( *( ucRHSSegments[ uxLED ] ) )
|
| 190 |
|
|
{
|
| 191 |
|
|
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
|
| 192 |
|
|
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_OFF;
|
| 193 |
|
|
}
|
| 194 |
|
|
else
|
| 195 |
|
|
{
|
| 196 |
|
|
*( ucRHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
|
| 197 |
|
|
*( ucLHSSegments[ uxLED ] ) = partstSEGMENTS_ON;
|
| 198 |
|
|
}
|
| 199 |
|
|
}
|
| 200 |
|
|
xTaskResumeAll();
|
| 201 |
|
|
}
|
| 202 |
|
|
else
|
| 203 |
|
|
{
|
| 204 |
|
|
if( uxLED == partstON_BOARD_LED )
|
| 205 |
|
|
{
|
| 206 |
|
|
/* The request related to the genuine on board LED. */
|
| 207 |
|
|
prvToggleOnBoardLED();
|
| 208 |
|
|
}
|
| 209 |
|
|
}
|
| 210 |
|
|
}
|
| 211 |
|
|
/*-----------------------------------------------------------*/
|
| 212 |
|
|
|
| 213 |
|
|
static void prvToggleOnBoardLED( void )
|
| 214 |
|
|
{
|
| 215 |
|
|
static unsigned portSHORT sState = pdFALSE;
|
| 216 |
|
|
|
| 217 |
|
|
/* Toggle the state of the single genuine on board LED. */
|
| 218 |
|
|
if( sState )
|
| 219 |
|
|
{
|
| 220 |
|
|
P1OUT |= mainON_BOARD_LED_BIT;
|
| 221 |
|
|
}
|
| 222 |
|
|
else
|
| 223 |
|
|
{
|
| 224 |
|
|
P1OUT &= ~mainON_BOARD_LED_BIT;
|
| 225 |
|
|
}
|
| 226 |
|
|
|
| 227 |
|
|
sState = !sState;
|
| 228 |
|
|
}
|
| 229 |
|
|
/*-----------------------------------------------------------*/
|
| 230 |
|
|
|
| 231 |
|
|
|
