..\..\Output\pwn.axf: Error: L6218E: Undefined symbol TIM3_PWN_Init (referred from main.o).
..\..\Output\pwn.axf: Error: L6218E: Undefined symbol TIM_OC1PerloadConfig (referred from bsp_pwn_output.o).
..\..\Output\pwn.axf: Error: L6218E: Undefined symbol TIM_OC2PerloadConfig (referred from bsp_pwn_output.o).
..\..\Output\pwn.axf: Error: L6218E: Undefined symbol TIM_OC3PerloadConfig (referred from bsp_pwn_output.o).