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Add FreeRTOS-Plus directory.
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Richard Barry
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==========================================================================
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Template Project for MB96348HS Series
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==========================================================================
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Fujitsu Microelectronics Europe GmbH
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The following software is for demonstration purposes only. It is not
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fully tested, nor validated in order to fullfill its task under all
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circumstances. Therefore, this software or any part of it must only be
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used in an evaluation laboratory environment.
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This software is subject to the rules of our standard DISCLAIMER, that is
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delivered with our SW-tools on the Fujitsu Microcontrollers DVD
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(V5.0 or higher "\START.HTM").
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==========================================================================
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History
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Date Ver Author Softune Description
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2007-10-29 1.0 MPi V30L33R11 original version
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2007-11-02 1.1 MPi V30L33R11 Added the watchdog functionality
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Used vTaskStartScheduler() instead
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of xPortStartScheduler()
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2007-11-12 1.2 MPi V30L33R11 Updated FreeRTOS 4.6.1 and tested
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2007-11-23 1.3 MPi V30L33R11 Seperated watchdog functionality in watchdog.c
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and watchdog.h
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2008-01-03 1.4 MPi V30L33R11 Added portYIELDFromISR() and now all the
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demo application functions are working.
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2008-01-04 1.5 MPi V30L33R11 Updated FreeRTOS 4.7.0 and tested
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2008-01-10 1.6 MPi V30L33R11 Replaced INT9 with INT #122 in macro portYIELD()
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2008-01-14 1.7 MPi V30L33R11 Modified the code to work with SK-16FX-100PMC V1.1
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2008-01-15 1.8 MPi V30L33R11 Integrated SVN releases 1.5 and 1.6.
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==========================================================================
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1.0.
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This is a project is to test the FreeRTOS port for 16FX and the demo application
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which runs on FLASH-CAN-100P-240.
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This FreeRTOS port uses the Task Stack pointed by User Stack pointer (USB:USP) for
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tasks and the system stack pointed by System Stack pointer (SSB:SSP) for everything
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else.
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This port is tested with MEDIUM and LARGE memory model and seems to be working fine.
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The define MEMMODEL has to be configured in order to use the corresponding memory
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model.
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This port doesnt use any register banking and always uses bank 0. It also consider that
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the parameters to the tasks is passed via stack and not via registers.
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In this port the implemetation of portENTER_CRITICAL() and portEXIT_CRITICAL() macros
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is changed in order to make them more efficient. Now usCriticalNesting variable is not
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used to keep track of global interrupt enable. Rather the current PS is stored on to
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the stack and interrupts are disabled for portENTER_CRITICAL(). And for portEXIT_CRITICAL()
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simply the PS is restored from stack.
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1.1.
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In this port, the functionality is added to initialize and clear the watchdog in the
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dedicated task, Tick Hook or the Idle Hook. The place exactly where the wtachdog can be
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cleared can be configured. Though Idle Hook is not an approproiate place to clear the
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watchdog, its done here for demonstration purpose only.
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Also from Main function vTaskStartScheduler() function is called instead of xPortStartScheduler().
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After doing this change now no more IDLE task is required to be added seperately as
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vTaskStartScheduler() adds prvIdleTask() on its own.
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1.2.
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Updated the FreeRTOS version to 4.6.1 and tested with the same.
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1.3.
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Moved the watchdog functionality to watchdog.c and watchdog.h.
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1.4.
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Added portYIELDFromISR() which uses delayed interrupt. This macro needs to be used from the
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application ISRs in order to force a context switch from them if required. It should be noted
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that the interrupt priority of such application ISRs MUST be always higher than the dealyed
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interrupt (currently 23) in order to perform the context switch correctly.
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It should be also noted that the RLT0 and Delayed Interrupt priority MUST be always same in order
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to assure correct working of this port.
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Now portYIELD() used software interrupt INT9 instead of delayed interrupt.
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Now all the queue functions works ok.
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Tested with the heap_1.c, heap_2.c and heap_3.c.
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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
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required to be used should be removed from the target of the build.
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Added the __STD_LIB_sbrk.c file in order to define the *sbrk() function. This is required while using
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heap_3.c file which uses the dynamic memory allocation.
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Made changes to the demo application files crhook.c. Please refer the file and grep for "Added by MPi"
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to find the changes. It should be noted that if INCLUDE_StartHookCoRoutines is defined as 0 (i.e. if
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vStartHookCoRoutines() functionality is NOT required) then crhook.c file should be removed from target
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build and uncomment the vApplicationTickHook() function from main.c should be uncommnented.
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Added taskutility.c file. This file contains vUART2Task() which calls vTaskList() and vTaskStartTrace()
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functions.
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If vCreateBlockTimeTasks() is not called then the LED at PDR00_P7 blinks at normal rate (3s).
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This port is tested with MEDIUM and LARGE memory model and working fine.
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configMINIMAL_STACK_SIZE value changed to 172 from 70 in order to make the port work.
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1.5.
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Updated the FreeRTOS version to 4.7.0 and tested with the same. Tested for pre-emptive as well as
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co-operative approach.
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1.6.
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portYIELD() macro now uses INT #122 instead of INT9.
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Optimized functions vParTestToggleLED() and vParTestSetLED() in main.c.
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Now watchdog uses 2^23 as clock prescaler instead of 2^24. Also updated the WTC_CLR_PER in watchdog.h.
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1.7.
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Modified the code to work with SK-16FX-100PMC V1.1.
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Made changes to the demo application files crflash.c. Please refer the file and grep for "Added by MPi"
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to find the changes.
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Made changes to taskutility.c and vectors.c in order to use UART1 instead of UART2.
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Made changes to main.c file in order to handle use the 7-segment display (SEG1) connected to Port09 for tasks
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and 7-segment display (SEG2) connected to Port00 for co-routines.
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Added config.h and moved the demo application configs there.
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1.8.
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It should be noted that the readme, appnote and SVN tag version numbers may be different for the same release.
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This readme is specific to project FreeRTOS_96348hs_SK16FX100PMC. And this project specifically works
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on board SK-16FX-100PMC V1.1 along with EUROScope debugger.
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Created 4 different configuration Config_1 to Config_4. Each config includes certain demo application function.
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More details specific to each configuration can be found in the appnote.
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Used relative path to include files instead of absolute.
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Created config, MemMang, serial and utility subdirectories and moved corresponding functionlaity there.
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Updated config.h, main.c and start.asm in order to have configuration specific build.
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Clock settings:
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---------------
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Crystal: 4 MHz
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CLKB: 56 MHz
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CLKP1: 56 MHz
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CLKP2: 56 MHz
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