inking...
.\Output\GPIOled.axf: Error: L6218E: Undefined symbol SysTick_CLKSourceConfig (referred from systick.o).
.\Output\GPIOled.axf: Error: L6218E: Undefined symbol SysTick_CounterCmd (referred from systick.o).
.\Output\GPIOled.axf: Error: L6218E: Undefined symbol SysTick_ITConfig (referred from systick.o).
.\Output\GPIOled.axf: Error: L6218E: Undefined symbol SysTick_SetReload (referred from systick.o).
Target not created
Find the error: stm32f10x_systick.c is not called in the library
Summary: Call whatever you need and always keep a clear mind.
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