Hello ; I have this error : ~~~ Description Resource Path Location Type unknown type name 'UBaseTypet' task.h /osiloskop/src line 1156 C/C++ Problem Description Resource Path Location Type unknown type name 'UBaseTypet' task.h /osiloskop/src line 2046 C/C++ Problem Description Resource Path Location Type unknown type name 'TickTypet' task.h /osiloskop/src line 2013 C/C++ Problem Description Resource Path Location Type unknown type name 'TaskFunctiont' task.h /osiloskop/src line 90 C/C++ Problem Description Resource Path Location Type unknown type name 'StackTypet' task.h /osiloskop/src line 122 C/C++ Problem Description Resource Path Location Type unknown type name 'ListItemt' task.h /osiloskop/src line 1919 C/C++ Problem Description Resource Path Location Type unknown type name 'List_t' task.h /osiloskop/src line 1918 C/C++ Problem

~~~ I have task. h file and All these name defined as : ~~~ typedef BaseTypet (*TaskHookFunctiont)( void * ); ~~~ Why I have this error ?

I'm not sure why you are getting this error - but you don't give me much of a clue as to what you are doing.

UBaseType_t is included in portmacro.h, which is a header file that is specific to the port you are using. If you include FreeRTOS.h before task.h then portmacro.h will be included for you (do not include pormacro.h manually, just include FreeRTOS.h). However, if you fail to include FreeRTOS.h before tasks.h then your code will not build anyway due to the following #error statement:

#ifndef INC_FREERTOS_H
     #error "include FreeRTOS.h must appear in source files before 
include task.h"
#endif

Unless that is, you are using a very very old version of FreeRTOS.

Thank you so much for your reply I updated my portmacro.h file But I have these error : ~~~ Description Resource Path Location Type 'configMAXSYSCALLINTERRUPTPRIORITY' undeclared (first use in this function) portmacro.h /osiloskop/src line 139 C/C++ Problem Description Resource Path Location Type unknown type name 'TaskFunctiont' task.h /osiloskop/src line 155 C/C++ Problem

~~~

Please show the order in which you include the header files.

My main file starts likes attachments

I found my error But I have only this error again: ~~~ Description Resource Path Location Type 'configMAXSYSCALLINTERRUPT_PRIORITY' undeclared (first use in this function) portmacro.h /osiloskop/src line 139 C/C++ Problem

~~~

Are you including header files from within other header files?

Yes Can I ask question? Where should be this function 'configMAXSYSCALLINTERRUPT_PRIORITY' other from portmacro

That should be defined in FreeRTOSConfig.h.

Actually I want to run these code Which file should added for running these code: pixelconstant.h memcontrol.h mem_control.c main.c You shoul see in step 5 here http://www.instructables.com/id/Digital-Oscilloscope-using-Digilent-Zybo-Board/

I'm afraid I'm not going to look at your code. You need to figure it out - it is just a header include problem.

Some rules: 1) The FreeRTOS API functions are prefixed to let you know which header file to include. For example, if you use xQueueReceive() then you must include queue.h. HOWEVER if you include a header file that contains prototypes for FreeRTOS API functions then you must also include FreeRTOS.h first. For example:

#include "FreeRTOS.h"
#include "queue.h"

2) Never include FreeRTOSConfig.h, portable.h or portmacro.h yourself, they are included in FreeRTOS.h, and the order in which FreeRTOS.h includes header files is correct to avoid dependency issues.

If you are getting dependency issues, like UBaseType_t is being referenced before it is being declared, then the above rules are being broken somewhere and you need to work out where. I suspect another header file is using a FreeRTOS type without FreeRTOS.h being seen first. The compiler error should tell you which C file generated the error, so you will have to look at the header files included by that C file and work backwards.

Thank you but there are lots of freeRTOSConfig.h(I mean header file name are same bıt their code is different like freertosconfig.h) How can I decide that which is true?

FreeRTOSConfig.h is an APPLICATION header file, that should be part of YOUR application, and not just taken from some random place. In the FreeRTOS distibution there are lots of copies of it under the 'Demo' folder, as this is full of demo applications for many different systems.

If you started your application based on one of the demo, then you should have copied the file with the rest of the demo application.