• State Suggested Answer
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 23 subscribers
  • Views 1250 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Unexpected Expression Error in RTX_CM_Lib.h

ffomar

Build started: Project: WFC
*** Using Compiler 'V5.06 update 6 (build 750)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
Build target 'WFC 3_5_16bit'
Before Build - User command #2: SubWCRev.exe "../" "template.h" "version.h"
SubWCRev: 'C:\Users\FAl-Obaidi\Desktop\WFC\'
Last committed at revision 0
Updated to revision 0
Unversioned items found
compiling RTX_Conf_CM.c...
C:\Keil_v5\ARM\PACK\ARM\CMSIS\5.6.0\CMSIS\RTOS\RTX\INC\RTX_CM_lib.h(300): error: #29: expected an expression
if (nr_mutex >= OS_MUTEXCNT) {
RTE\CMSIS\RTX_Conf_CM.c: 0 warnings, 1 error
compiling dex_accounting.c...
compiling service_mode_menu.c...
compiling inter_controller_comm_thread.c...
compiling wfc_dbc.cpp...
".\Output\WFC.axf" - 1 Error(s), 0 Warning(s).
Target not created.
Build Time Elapsed: 00:00:15

code at line 300 from RTX_CM_lib.h:

/*--------------------------- _mutex_initialize -----------------------------*/

int _mutex_initialize (OS_ID *mutex);
int _mutex_initialize (OS_ID *mutex) {
/* Allocate and initialize a system mutex. */

    if (nr_mutex >= OS_MUTEXCNT) {
             /* If you are here, you need to increase the number OS_MUTEXCNT. */
            for (;;);
    }
    *mutex = &std_libmutex[nr_mutex++];
    mutex_init (*mutex);
    return (1);
}
  • 0

    This is likely because OS_MUTEXCNT is defined, but it does not evaluate to a number.

    #define OS_MUTEXCNT (8)   // This is good

    #define OS_MUTEXCNT        // This will give you an error

    Some how you need to make sure the OS_MUTEXCNT is defined and is a valid expression.

    Usually if it is not defined externally, it is defined in RTX_Conf_CM.c (This is your file to modify) and this is includes the file RTX_CM_lib.h (Which in general is not something that is yours to modify)