wenkong_junshi/Examples/WWDGT/WWDGT_delay_feed

/*!
\file readme.txt
\brief description of the WWDGT_delay_feed example

\version 2017-02-10, V1.0.0, firmware for GD32F30x
\version 2018-10-10, V1.1.0, firmware for GD32F30x
\version 2018-12-25, V2.0.0, firmware for GD32F30x
\version 2020-09-30, V2.1.0, firmware for GD32F30x
*/

/*
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*/

This demo is based on the GD32307C-EVAL -V1.1 board, it shows the WWDGT with different
counter value and window value make the different WWDGT timeout. As a result, LED2
and LED3 display a different phenomenon.

In this demo, the WWDGT counter value is set to 127, the refresh window is set to
80. In this case the WWDGT timeout is set to 34.9ms(the timeout may varies due to
APB1 frequency dispersion), the value in the delay function is set to 26ms, the WWDGT
counter can reloaded normally,the LED2 is turn off, LED3 is blinking fast.

If the value in the delay function is not set properly, the WWDGT counter is not
reloaded. As a result, the system reset and only the LED2 is remain illuminated.

In this example the system clock is set to 120 MHz , and the APB1 is set to 60MHz.