System and method for checking watchdog zero clearing signal
A technology of watchdog and reset, which is applied in error detection/correction, instrumentation, electrical digital data processing, etc. It can solve the problems of WDI signal not being detected and oscilloscope storage space being small.
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[0029] figure 1 It is a schematic structural diagram of Embodiment 1 of the system for detecting the watchdog reset signal of the present invention. The system includes: a statistical module 11, a maximum register 12, a minimum register 13 and an alarm indication module 14. The maximum register 12 is used to store a predetermined watchdog The maximum pulse width value of the clear signal; the minimum register 13 is used to store the minimum pulse width value of the predetermined watchdog clear signal; for the convenience of description, the maximum register 12 and the minimum register 13 are respectively marked as R Max , R Min , then the maximum pulse width value is R Max The value; the minimum pulse width value is R Min The value can be set to the maximum value register R Max and minimum value register R Min It is set to a typical value, for example, the maximum value register is set to 0.9 seconds, and the minimum value register is set to 100 nanoseconds; the statistics...
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