Hello.
I´m using the IAR Workbench 4.31KS and i have a problem.
I want to twitch the compiler from c to embedded c++ as language.

I´m using the twi-sample and every time i compile the projekt i get the error :

Error[e46]: Undefined external "AT91F_LowLevelInit" referred in ?RESET ( C:\Dokumente und Einstellungen\***\Eigene Dateien\usb\at91sam7s256_iar\

Can someboidy explain my, how i can fix this problem?
MrRossi

Can nobody help me?

I tryy the atmel-sample but with no effect. Is the noboby how can give me a solution for this problem?

Try to declare AT91F_LowLevelInit as extern "C"

Thanks for your help, but i have still the same error-message.

Hi

I confirm the declaration without error message

extern "C" void AT91F_Spurious_handler(void);
extern "C" void AT91F_Default_IRQ_handler(void);
extern "C" void AT91F_Default_FIQ_handler(void);

//*----------------------------------------------------------------------------
//* \fn AT91F_LowLevelInit
//* \brief This function performs very low level HW initialization
//* this function can be use a Stack, depending the compilation
//* optimization mode
//*----------------------------------------------------------------------------
extern "C" void AT91F_LowLevelInit( void) @ "ICODE"
{

JPP

Hi,

Is the source in a .cpp file?
If it is in a .c file the linker can't resolve your function.

Arno

Thanks for your help!
Now ist works fine! It is not nessesary to chane the file-name in .cpp!
MrRossi

Hi,
I found this old post. I'm trying to do exactly what U were doing with the same error.When linking in C++.
How did U solve it?

Thanks