Part Number: RM48L952
Hello, thank you for always answering questions.
Today, I would like to ask you a question related to DWD (Digital Watchdog). I tried to apply DWD to my program, but I ran into problems because the DWD operating time was not what I expected.
The DWD setting is RTICLK = 100MHz, Preload = 0xFFU, and is calculated to be approximately 19ms by applying the formula in the datasheet. And my program initializes the DWD Down Counter in RTI Interrupt every 1 ms.
Theoretically, since the DWD Down Counter is initialized every 1 ms, system reset or NMI should not occur due to DWD operation.
However, even though my program is operating normally, DWD operates if the Preload value is not over 0x3FFU.
I continued testing, but couldn't find the cause. Or is there an error in my calculations? If there is an error, can you tell me the DWD operation time according to the preload value?.
Thanks for reading the question. have a good day.
