K60，添加中断后出现的错误

tczy

ARM_GCC_Support/ewl/EWL_C/src/sys/uart_console_io.c undefined reference to `InitializeUART'        Uart_isr                line 200        C/C++ Problem
ARM_GCC_Support/ewl/EWL_C/src/sys/uart_console_io.c undefined reference to `ReadUARTN'        Uart_isr                line 93        C/C++ Problem

ARM_GCC_Support/ewl/EWL_C/src/sys/uart_console_io.c undefined reference to `WriteUARTN'        Uart_isr                line 151        C/C++ Problem
 
错误如上，找不到错误出现于何处

 

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