/*!
    \file    readme.txt
    \brief   description of HPTIMER0  DMA mode example

    \version 2025-07-15, V1.0.0, firmware for GD32G5x3
*/

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  This example is based on the GD32G553Q-EVAL-V1.0 board, This example shows how to
use DMA with Slave_TIMER0 counter reset request to transfer data from memory to
Slave_TIMER0 compare register 0~1.

  The ST0_CH0_O channel (PA8) and ST0_CH1_O channel (PA9) output a pair of complementary
PWM waveforms with a period of 1us. The waveforms on pins of PA8 and PA9 can be observed
by oscilloscope.

  Slave_TIMER0 compare register 0~1 are to be updated once per circle.On the first reset
DMA request, buffer[0] is transferred to HPTIMER_ST0CMP0V and buffer[1] is transferred
to HPTIMER_ST0CMP1V. The  high level width of ST0_CH0_O channel (PA8) is 72ns.On the
second reset DMA request,buffer[2] is transferred to HPTIMER_ST0CMP0V and buffer[3] is
transferred to HPTIMER_ST0CMP1V. The  high level width of ST0_CH0_O channel (PA8) is 217ns.
  Connect the external pins PB6 and PA10 to use USART.
