.\STM32_DEMO.axf: Error: L6218E: Undefined symbol EXTI_ClearITPendingBit (referred from stm32f10x_it.o).
.\STM32_DEMO.axf: Error: L6218E: Undefined symbol EXTI_GetITStatus (referred from stm32f10x_it.o).
.\STM32_DEMO.axf: Error: L6218E: Undefined symbol EXTI_Init (referred from main.o).
Not enough information to list image symbols.