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TPS6594-Q1: pmic上的watchdog窗口异常

Part Number: TPS6594-Q1

这边项目使用了pmic TPS6594-Q1,用到了里面的watchdog,这边设置的QA模式,窗口参数都设置为最大值约70ms.发现系统以50ms周期喂狗并没有发生重启。根据手册计算窗口应该是66.88ms~73.92ms,为什么50ms喂狗都不重启?

#define WIN1DURATION    70400U//us
#define WIN2DURATION    70400U//us