Hello everyone, I tried to create a project for the microcontroller HCS12P64 just to manipulate the tasks, since I found problems when compiling the demo project. I have added the necessary files: source and headers as shown in the following link: http://www.freertos.org/Creating-a-new-FreeRTOS-project.html But unfortunately when compiling with codeWarrior I get this error: Error: C4437 / Error directive found: You need to define SELECTED_PORT here! trcConfig.h line 80 Really I’m stuck in this stage, I don’t know what to do. I need your help please. Regards.

That error is in FreeRTOS+Trace, which you don’t need to run FreeRTOS. Did you mean to include the trace code?

I added the Trace files, since I integrate FreeRTOS and FreeRTOSConfig files that use the Trace. I wonder if I can manipulate Tasks without referring to Trace? if it is possible how I can do it? Here are the header files that I used : * croutine, * deprecateddefinitions, * eventgroups, * FreeRTOS, * list, * mpu_wrappers, * portable, * portmacro, * projdefs, * queue, * sephr, * StackMacros, * stdint, * task, * timers, * trcBase, * trcConfig, * trcHardwarePort, * trcKernel, * trcKernelHooks, * trcKernelPort, * trcTypes, * trcUser. * And trcConfig. Thank you very much for your help! Regards

It is always best to start with the simplest system and then build incrementally from there, so first get the code compiling without the trace files. You don’t need anything from the /FreeRTOS-Plus directory – your original post has a link to a page that tells you which include paths are required.

I followed your recommendations, and I actually found that I can work with Tasks without using the Trace. After creating a simple main code to manage tasks Here are the errors I had : **Link Error : L1822: Symbol vAssertCalled in file ..Project4newDataStandardObjectCodeheap1.c.o is undefined Link Error : L1822: Symbol portRESETREADYPRIORITY in file ..Project4new_DataStandardObjectCodetasks.c.o is undefined ** Link Error : L1822: Symbol taskRECORDREADYPRIORITY in file ..Project4new_DataStandardObjectCodetasks.c.o is undefined** Link Error : L1822: Symbol TERMIO_PutChar in file C:Program Files (x86)FreescaleCWS12v5.1libHC12clibansibi.lib is undefined Link Error : L1822: Symbol vApplicationMallocFailedHook in file ..Project4newDataStandardObjectCodeheap1.c.o is undefined Link Error : L1822: Symbol vConfigureTimerForRunTimeStats in file ..Project4new_DataStandardObjectCodetasks.c.o is undefined Link Error : L1822: Symbol TickTimerSetFreqHz in file C:UsersToshibaDesktopProject4newProject4newDataStandardObjectCodeport.c.o is undefined Link Error : L1822: Symbol TickTimerEnable in file C:UsersToshibaDesktopProject4newProject4newDataStandardObjectCodeport.c.o is undefined Link Error : Link failed I greatly apologize for the inconvenience.

**Link Error : L1822: Symbol vAssertCalled in file C:UsersToshibaDesktopProject4newProject4newDataStandardObjectCodeheap1.c.o is undefined

I suspect you have configASSERT() defined to call vAssertCalled() – if you do that then your application must implement vAssertCalled(). http://www.freertos.org/a00110.html#configASSERT

Link Error : L1822: Symbol portRESET_READY_PRIORITY in file C:UsersToshibaDesktopProject_4_newProject_4_new_DataStandardObjectCodetasks.c.o is undefined

Searching for portRESETREADYPRIORITY in tasks.c will show that, if configUSEPORTOPTIMISEDTASKSELECTION is set to 0 or undefined in FreeRTOSConfig.h, then portRESETREADYPRIORITY is not needed. If that is not clear – set configUSEPORTOPTIMISEDTASKSELECTION to 0.

* Link Error : L1822: Symbol taskRECORDREADYPRIORITY in file C:UsersToshibaDesktopProject4newProject4new_DataStandardObjectCodetasks.c.o is undefined*

Same as portRESETREADYPRIORITY comment.

Link Error : L1822: Symbol TERMIO_PutChar in file C:Program Files (x86)FreescaleCWS12v5.1libHC12clibansibi.lib is undefined

This is a tools issue. Perhaps the library has been changed since the demo was created (which was many years ago).

Link Error : L1822: Symbol vApplicationMallocFailedHook in file C:UsersToshibaDesktopProject_4_newProject_4_new_DataStandardObjectCodeheap_1.c.o is undefined

Google vApplicationMallocFailedHook to find the documentation page for this on the FreeRTOS.org website. [either set configUSEMALLOCFAILED_HOOK to 0 or define the vApplicationMallocFailedHook callback function] >

Link Error : L1822: Symbol vConfigureTimerForRunTimeStats in file C:UsersToshibaDesktopProject_4_newProject_4_new_DataStandardObjectCodetasks.c.o is undefined

Again, Google finds the answer right away http://www.freertos.org/rtos-run-time-stats.html >

Link Error : L1822: Symbol TickTimer_SetFreqHz in file C:UsersToshibaDesktopProject_4_newProject_4_new_DataStandardObjectCodeport.c.o is undefined

This looks like a library function being called from the RTOS port layer – if it cannot be found then either the libraries have been changed since the port was written (it is an OLD port!) or it is related to the fact that the library could not be found (a few comments above).

Link Error : L1822: Symbol TickTimer_Enable in file C:UsersToshibaDesktopProject_4_newProject_4_new_DataStandardObjectCodeport.c.o is undefined

Same comment as for TickTimer_SetFreqHz.

Thank you for your return. I followed your recommendations, but nothing changed.Especially that the configurations were established by default. if you can take a look at the project I would be really grateful. Please find the project under the following link. https://drive.google.com/file/d/0B5H5iHY-04JYQTVBMUtiNG1PUnM/view?usp=sharing Regards.

I see you still have configASSERT() defined such that it will try calling vAssertCalled(), but vAssertCalled() does not seem to be implemented anywhere, and the configUSEMALLOCFAILED_HOOK is still 1 but vApplicationMallocFailedHook() is not defined – I didn’t look any further. Did you change anything?

yes I changed the settings, and I totally deleted configASSERT from FreeRTOS after compiling, 3 errors are generated which indicates that the compilation failed that’s why I sent you the complete source project without modification.

Hello, I’ve realized that I was changing the settings under FreeRTOS not FreeRTOSConfig, especially for the set to 0, Now I just have 2 errors related to port file that I could not resolve, especially that I have no problem with the libraries. Link Error : L1822: Symbol TickTimerSetFreqHz in file C:UsersFAAR IndustryDesktopProject4new3Project4newDataStandardObjectCodeport.c.o is undefined Link Error : L1822: Symbol TickTimerEnable in file C:UsersFAAR IndustryDesktopProject4new3Project4newDataStandardObjectCodeport.c.o is undefined Link Error : Link failed if you can take a look at the project after editing I would be really grateful. Please find the project under the following link. https://drive.google.com/open?id=0B5H5iHY-04JYWmRCUTJabjJFbkE Thank you for your help.

These two functions are not provided by FreeRTOS, but are calls to a library function – either the library is not being included in the project or the names of the functions have changed.

Googling brings up this file, which says it is created by the ‘tool’: http://www.eej.ulst.ac.uk/~ian/modules/EEE527/files/downloads/FreeRTOSV8.2.3/FreeRTOS/Demo/HCS12CodeWarriorsmall/CODE/TickTimer.C

Hello, I tried to integrate TickTimer.C file that you recommended, but that creates other errors, so I tried the alternative solution, of modifying the file port.c with another one. finally I got the following error: Link Error : L1102: Out of allocation space in segment RAM at address 0x3105 ** **Link Error : Link failed Another question if it is possible : Can we port the kernel of FreeRTOS on the HCS12P64 microcontroller which has 64KB cache memory and 4KB of RAM? Thanks for your help.

On 20/03/2016 00:10, Karima AISSAOUI wrote:

Hello, I tried to integrate TickTimer.C file that you recommended, but that creates other errors, so I tried the alternative solution, of modifying the file port.c with another one. finally I got the following error: Link Error : L1102: Out of allocation space in segment RAM at address 0x3105 * *Link Error : Link failed

I suspect you have just declared a heap that is too big for the part you are trying to use. See http://www.freertos.org/a00110.html#configTOTALHEAPSIZE

Another question if it is possible : Can we port the kernel of FreeRTOS on the HCS12P64 microcontroller which has 64KB cache memory and 4KB of RAM?

64KB cache memory? I presume you mean 64KB for flash memory – and if that is the case, then yes, definitely. http://www.freertos.org/FAQMem.html As for 4K of RAM, then yes also, but it will restrict the number of tasks you can create as each task requires its own stack, and each stack needs RAM. It looks like the [very old] demo in the download is using less than 2K. Regards.

Thank you very much for these interesting answers. I must inform you that I used the heap_1 file, the lightest and the simplest file among the heap files, since I haven’t a complicated program.