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SDK_GD32W51x/NSPE/Example/TIMER/TIMER1_pwmout
2023-05-18 18:53:00 +08:00
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2023-05-18 18:53:00 +08:00
2023-05-18 18:53:00 +08:00
2023-05-18 18:53:00 +08:00

/*!
    \file    readme.txt
    \brief   description of the TIMER1 PWM output demo for gd32w51x

    \version 2021-10-30, V1.0.0, firmware for GD32W51x
*/

/*
    Copyright (c) 2021, GigaDevice Semiconductor Inc.

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*/

    This demo is based on the GD32W515P-EVAL-V1.0 board, it shows how to configure the 
TIMER peripheral in PWM (Pulse Width Modulation) mode.
  
    The TIMxCLK frequency is set to systemcoreclock, the prescaler is 180 so the 
TIMER1 counter clock is 1MHz.
  
    TIMER1 Channel0 duty cycle = (4000/ 16000)* 100 = 25%.
    TIMER1 Channel1 duty cycle = (8000/ 16000)* 100 = 50%.
    TIMER1 Channel2 duty cycle = (12000/ 16000)* 100 = 75%.

  @note
  Connect the TIMER1 pins to an oscilloscope to monitor the different waveforms:
    - TIMER1_CH1  pin (PA0)
    - TIMER1_CH2  pin (PA1)
    - TIMER1_CH3  pin (PA2)