7 years, 6 months ago.

Linker error after exporting to keil V5 for Iserial

Hello,

I am working on nucleo l053r8 board. I would like to know the time taken for serial communication using normal serial and interrupt serial. I could not find any linker errors in mbed compiler but when exported to keil uvision v5. I find the following errors.

• Error: L6218E: Undefined symbol thunk{-68} to mbed::Serial::lock() (referred from iserial.o).
• Error: L6218E: Undefined symbol thunk{-68} to mbed::Serial::_getc() (referred from iserial.o).
• Error: L6218E: Undefined symbol thunk{-68} to mbed::Serial::_putc(int) (referred from iserial.o).
• Error: L6218E: Undefined symbol thunk{-68} to mbed::Serial::unlock() (referred from iserial.o).

It gives this kind of error when using iserial. Could any one provide me suggestions how to rectify this linker error. Thank you.

Best regards, Sandeep.