hoverboard-sideboard-hack-GD/docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/CMP/Timer1_CH3IC

/*!
    \file  readme.txt
    \brief description of the comparator output timer input capture demo
*/

/*
    Copyright (C) 2017 GigaDevice

    2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
    2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
    2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
    2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/

    This demo is based on the GD32150R-EVAL/GD32190R-EVAL board, it shows how to 
  configure the comparator trigger timer 1 channel 3 input capture event, which 
  is configured to generate an interrupt on both rising and falling edge of the
  output signal.In this demo, input 3.3V(GD32150R) or 5V(GD32190R) to CMP1_IP.
  After system start-up, enable comparator and trigger interrupt,then LED3 is on.  

    Connect PA1 to +3V3(GD32150R) or +5V(GD32190R).