Hello! I have transfered my project from uVision to uVision2. The IDE has the compiler C51 V7.06 and the linker BL51 V5.03. If I rebuilt my target, the compiler displays an error-message for all functions. This occurs, even if a library function is used. "error C127: invalid storage class" The error-list contains an explanation, which I do not understand: "An object was declared with an invalid memory space specification. This occurs if an object is declared with storage- class of auto or register outside of a function." I dont know, why these error is created, because of I included the command "#pragma LARGE" and set even "Options for target" to "LARGE memory model". "Off Chip Xdata memory" is set to 64k. My project has the following structure (shortend). There could be parameters too.
// header-file: test.h // declaration of test() extern void test( void ); // main-file: main.c #pragma LARGE // include header-file #include "test.h" void main( void ) { // call test() test(); } // source-file: test.c #pragma LARGE void test( void ) { // test source code }
Thank you for your reply. Of course, the error-messages includes the name of the file and the line number. In detail, for each declaration of a function within the header-file, this error is created. I will show you four examples. The german lines are only comments: header-file: "smotor.h" // Bewegungsrichtung des Schrittmotors vorgeben extern unsigned char setProbeDirection( const unsigned char direction ); // Drehgeschwindigkeit des Schrittmotors vorgeben extern unsigned char setProbeSpeed( const unsigned char speed ); // Periodendauer als vielfaches von 5ms einstellen für den Timer extern void setImpulseTime( const unsigned int dauer ); // Motor ein- oder ausschalten - _CLOCK wird bei aktivem Timer generiert extern unsigned char setMotor( const unsigned char run_motor ); While rebuilding, the compiler shows the following messages: SMOTOR.H(71): error C127: '_setProbeDirection': invalid storage class SMOTOR.H(74): error C127: '_setProbeSpeed': invalid storage class SMOTOR.H(77): error C127: '_setImpulseTime': invalid storage class SMOTOR.H(80): error C127: '_setMotor': invalid storage class
// Bewegungsrichtung des Schrittmotors vorgeben extern unsigned char setProbeDirection( const unsigned char direction ); // Drehgeschwindigkeit des Schrittmotors vorgeben extern unsigned char setProbeSpeed( const unsigned char speed ); // Periodendauer als vielfaches von 5ms einstellen für den Timer extern void setImpulseTime( const unsigned int dauer ); // Motor ein- oder ausschalten - _CLOCK wird bei aktivem Timer generiert extern unsigned char setMotor( const unsigned char run_motor );
This is a strange error, as I don't really see what 'storage class' has to do with 'memory space'. Auto and register cannot be used outwith local variables (and parameter declarations in the case of register) in any case. Can you cut your program down to a main function which calls one function in another file and a header file containing the appropriate prototype, then post all the code if you still get this error? Stefan
Incidentally, I've had various weird things happen when upgrading versions. Sometimes the only cure is to create a new project from scratch. Stefan
In detail, for each declaration of a function within the header-file, this error is created. Hmm... you haven't by any chance inadvertantly added the header files to the project as source files, have you? If that's not it, I think a small, but self-sufficient example case will be needed, along with the actual compiler output you get (including all options, as found in the first few lines of the *.lst file).