/*!
    \file    readme.txt
    \brief   description of the TIMER1 PWM output demo

    \version 2025-01-01, V2.5.0, firmware for GD32F3x0
*/

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*/

  This demo is based on the GD32350R-EVAL board, it shows how to configure the TIMER 
peripheral in PWM (Pulse Width Modulation) mode.

  TIMER1CLK is fixed to systemcoreclock, the TIMER1 prescaler is equal to or 108(GD32F350)
so the TIMER1 counter clock used is 1MHz.

  TIMER1 Channel1 duty cycle = (4000/ 16000)* 100 = 25%.
  TIMER1 Channel2 duty cycle = (8000/ 16000)* 100 = 50%.
  TIMER1 Channel3 duty cycle = (12000/ 16000)* 100 = 75%.

  Connect the TIMER1 pins to an oscilloscope to monitor the different waveforms:
  - TIMER1_CH1 pin (PB3)
  - TIMER1_CH2 pin (PB10)
  - TIMER1_CH3 pin (PB11)
