begriffs open source - cmsis-freertos/blob - Demo/MB91460

1

2 ==========================================================================

3 Template Project for MB91F467D

4 ==========================================================================

5 Fujitsu Microelectronics Europe GmbH

6 http://emea.fujitsu.com/microelectronics

7

8 The following software is for demonstration purposes only. It is not

9 fully tested, nor validated in order to fullfill its task under all

10 circumstances. Therefore, this software or any part of it must only be

11 used in an evaluation laboratory environment.

12 This software is subject to the rules of our standard DISCLAIMER, that is

13 delivered with our SW-tools on the Fujitsu Microcontrollers CD /DVD

14 (V3.4 or higher "\START.HTM").

15 ==========================================================================

16

17 History

18 Date Ver Author Softune Description

19 2007-11-12 1.0 MPi V60L06 original version

20 2007-11-12 1.1 MPi V60L06 Changed the version for consistency

21 with SVN

22 2007-11-23 1.2 MPi V60L06 Seperated Watchdog functionality

23 added watchdog.c and watchdog.h

24 2007-12-13 1.3 MPi V60L06 Tested with the FreeRTOS version 4.6.1.

25 2007-12-13 1.4 MPi V60L06 Tested with the FreeRTOS version 4.7.0.

26 2007-01-07 1.5 MPi V60L06 Removed watchdog.c, watchdog.h, port.c

27 and portmacro.h from directory

28 \FreeRTOS_Port_FR\91467d_FreeRTOS\SRC

29 2007-01-18 1.6 MPi V60L06 Tested with monitor debugger

30 ==========================================================================

31 1.0.

32 This is a project is to test the FreeRTOS port for FR (91467D) and the demo

33 application which runs on SK-91F467-Felxray V1.1.

34

35 1.1.

36 This FreeRTOS port uses the Task Stack pointed by User Stack pointer (USP) for

37 tasks and the system stack pointed by System Stack pointer (SSP) for everything

38 else.

39

40 1.2.

41 In this port, the functionality is added to initialize and clear the watchdog in

42 the dedicated task, Tick Hook or the Idle Hook. The place exactly where the

43 watchdog can be cleared can be configured. Though Idle Hook is not an approproiate

44 place to clear the watchdog, its done here for demonstration purpose only.

45

46 Also from Main function vTaskStartScheduler() function is called instead of

47 xPortStartScheduler(). After doing this change now no more IDLE task is required

48 to be added seperately as vTaskStartScheduler() adds prvIdleTask() on its own.

49

50 The System Stack required by each of the RLT0 and Delayed Interrupt ISR is around 100

51 bytes. This is considering no interrupts has higher priority than the RLT0 and Delayed

52 interrupt (23). If an application has interrupt whose priority is higher than these

53 interrupts, which is very likely, then for each such interrupt the user has to increase

54 the stack size at least by 50 bytes, though this is not an optimum figure and very well

55 depends upon the application.

56 Hence though the STACK_SYS_SIZE is defined as 2000, its optimum value would be very well

57 dependent on the application where the port would be used.

58

59 1.3.

60 Tested with the FreeRTOS version 4.6.1.

61

62 Changed portBYTE_ALIGNMENT to 4 from 1.

63

64 Added portYIELDFromISR() which uses delayed interrupt. This macro needs to be used from the

65 application ISRs in order to force a context switch from them if required. It should be noted

66 that the interrupt priority of such application ISRs MUST be always higher than the dealyed

67 interrupt (currently 23) in order to perform the context switch correctly.

68

69 It should be also noted that the RLT0 and Delayed Interrupt priority MUST be always same in order

70 to assure correct working of this port.

71

72 Now portYIELD() used software interrupt INT #40H instead of delayed interrupt.

73

74 Now all the queue functions works ok.

75

76 Tested with the heap_1.c, heap_2.c and heap_3.c.

77

78 Added the __STD_LIB_sbrk.c file in order to define the *sbrk() function. This is required while using

79 heap_3.c file which uses the dynamic memory allocation.

80

81 Made changes to the demo application files crflash.c and crhook.c. Please refer those file

82 and grep for "Added by MPi" to find the changes.

83

84 Added taskutility.c file. This file contains vUART4Task() which calls vTaskList() and vTaskStartTrace()

85 functions.

86

87 If vCreateBlockTimeTasks() is not called then the LED at PDR25_D7 blinks at normal rate (3s).

88

89 1.4.

90 Tested with the FreeRTOS version 4.6.1.

91

92 At one time, either of heap_1.c or heap_2.c or heap_3.c needs to be used. Hence the files those are not

93 required to be used should be removed from the target of the build.

94

95 1.5.

96 Removed watchdog.c, watchdog.h, port.c and portmacro.h from directory \FreeRTOS_Port_FR\91467d_FreeRTOS\SRC,

97 since they are moved to folders watchdog and port respectively.

98

99 1.6.

100 It should be noted that the readme, appnote and SVN tag version numbers may be different for the same release.

101

102 Used relative path to include files instead of absolute.

103

104 Created config, MemMang, serial and utility subdirectories and moved corresponding functionlaity there.

105

106 Updated taskuitlity.c, vectors.c in oredr to use UART 5 instead of UART 4

107

108 Updated flash.c to increase LEDs to 4 from 3.

109

110 Clock settings:

111 ---------------

112 Crystal: 4 MHz

113 CPU: 64 MHz

114 CLKP: 16 MHz