begriffs open source - cmsis-freertos/blob - Demo/CORTEX_LPC1768_GCC

1 /*

4

5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

6

7 This file is part of the FreeRTOS distribution.

8

9 FreeRTOS is free software; you can redistribute it and/or modify it under

10 the terms of the GNU General Public License (version 2) as published by the

11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.

12

13 ***************************************************************************

14 >>! NOTE: The modification to the GPL is included to allow you to !<<

15 >>! distribute a combined work that includes FreeRTOS without being !<<

16 >>! obliged to provide the source code for proprietary components !<<

17 >>! outside of the FreeRTOS kernel. !<<

18 ***************************************************************************

19

20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY

21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

22 FOR A PARTICULAR PURPOSE. Full license text is available on the following

23 link: http://www.freertos.org/a00114.html

24

25 ***************************************************************************

26 * *

27 * FreeRTOS provides completely free yet professionally developed, *

28 * robust, strictly quality controlled, supported, and cross *

29 * platform software that is more than just the market leader, it *

30 * is the industry's de facto standard. *

31 * *

32 * Help yourself get started quickly while simultaneously helping *

33 * to support the FreeRTOS project by purchasing a FreeRTOS *

34 * tutorial book, reference manual, or both: *

35 * http://www.FreeRTOS.org/Documentation *

36 * *

37 ***************************************************************************

38

39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading

40 the FAQ page "My application does not run, what could be wrong?". Have you

41 defined configASSERT()?

42

43 http://www.FreeRTOS.org/support - In return for receiving this top quality

44 embedded software for free we request you assist our global community by

45 participating in the support forum.

46

47 http://www.FreeRTOS.org/training - Investing in training allows your team to

48 be as productive as possible as early as possible. Now you can receive

49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers

50 Ltd, and the world's leading authority on the world's leading RTOS.

51

52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,

53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS

54 compatible FAT file system, and our tiny thread aware UDP/IP stack.

55

56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.

57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.

58

59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High

60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS

61 licenses offer ticketed support, indemnification and commercial middleware.

62

63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety

64 engineered and independently SIL3 certified version for use in safety and

65 mission critical applications that require provable dependability.

66

67 1 tab == 4 spaces!

68 */

69

70 /* FreeRTOS.org includes. */

71 #include "FreeRTOS.h"

72

73 /* Demo application includes. */

74 #include "partest.h"

75

76 #define partstFIRST_IO ( ( unsigned long ) 0x04 )

77 #define partstFIO2_BITS ( ( unsigned long ) 0x0000007C )

78 #define partstFIO1_BITS ( ( unsigned long ) 0xB0000000 )

79 #define partstNUM_LEDS ( 5 )

80 #define partstALL_OUTPUTS_OFF ( ( unsigned long ) 0xff )

81

82 /*-----------------------------------------------------------

83 * Simple parallel port IO routines.

84 *-----------------------------------------------------------*/

85

86 void vParTestInitialise( void )

87 {

88 /* LEDs on ports 1 and 2 to output. */

89 GPIO2->FIODIR = partstFIO2_BITS;

90 GPIO1->FIODIR = partstFIO1_BITS;

91

92 /* Start will all LEDs off. */

93 GPIO2->FIOCLR = partstFIO2_BITS;

94 GPIO1->FIOCLR = partstFIO1_BITS;

95 }

96 /*-----------------------------------------------------------*/

97

98 void vParTestSetLED( unsigned long ulLEDIn, signed long xValue )

99 {

100 unsigned long ulLED = partstFIRST_IO;

101

102 /* Used to set and clear LEDs on FIO2. */

103

104 if( ulLEDIn < partstNUM_LEDS )

105 {

106 /* Rotate to the wanted bit of port */

107 ulLED <<= ( unsigned long ) ulLEDIn;

108

109 /* Set of clear the output. */

110 if( xValue )

111 {

112 GPIO2->FIOCLR = ulLED;

113 }

114 else

115 {

116 GPIO2->FIOSET = ulLED;

117 }

118 }

119 }

120 /*-----------------------------------------------------------*/

121

122 void vParTestToggleLED( unsigned long ulLEDIn )

123 {

124 unsigned long ulLED = partstFIRST_IO, ulCurrentState;

125

126 /* Used to toggle LEDs on FIO2. */

127

128 if( ulLEDIn < partstNUM_LEDS )

129 {

130 /* Rotate to the wanted bit of port 0. Only P10 to P13 have an LED

131 attached. */

132 ulLED <<= ( unsigned long ) ulLEDIn;

133

134 /* If this bit is already set, clear it, and vice versa. */

135 ulCurrentState = GPIO2->FIOPIN;

136 if( ulCurrentState & ulLED )

137 {

138 GPIO2->FIOCLR = ulLED;

139 }

140 else

141 {

142 GPIO2->FIOSET = ulLED;

143 }

144 }

145 }

146 /*-----------------------------------------------------------*/

147

148 long lParTestGetLEDState( void )

149 {

150 /* Returns the state of the LEDs on FIO1. */

151 if( ( GPIO1->FIOPIN & partstFIO1_BITS ) != 0 )

152 {

153 return pdFALSE;

154 }

155 else

156 {

157 return pdTRUE;

158 }

159 }

160 /*-----------------------------------------------------------*/

161

162 void vParTestSetLEDState( long lState )

163 {

164 /* Used to set and clear the LEDs on FIO1. */

165 if( lState != pdFALSE )

166 {

167 GPIO1->FIOSET = partstFIO1_BITS;

168 }

169 else

170 {

171 GPIO1->FIOCLR = partstFIO1_BITS;

172 }

173 }

174 /*-----------------------------------------------------------*/

175