# MCHTMR ## Overview **Mchtmr** machine timer drive example project shows how to realize the timing function through the machine timer module. - The example code configures **LED8** as the output function, configures the machine timer cycle **3 seconds**, and makes the LED light flash regularly according to the timer configuration ## Board Setting - No special settings ## Running the example When the project runs correctly, ``led`` is lit and flashes regularly every 3 seconds if LED on board, and the serial port terminal will output the information like:: ```console mchtmr example LED shall be flashing every 3s mchtmr interrupt! ```