New ContributorArria10 : Remote Update IP 19.1.0 watchdog behavior
Hello. There is a question is bound to Remote Update IP 19.1.0 and the watchdog.
Having looked through the documentation of the IP there is a strong conclusion of watchdog timer
to be applied once and it is enough to write '1' into RU_RESET_TIMER register once
to stop it staying in wished application image.
But looks like it behaves in another way and it is necessary to write RU_RESET_TIMER constantly to avoid it getting expired. Is this conduct is right and expected or there is something that goes wrong in my own case?
Hi,
I read this description of watchdog timer operation in Remote Update Intel® FPGA IP User Guide 2023.11.29, Table 2. Remote System Configuration Components in Intel Arria 10 and Intel Cyclone® 10 GX Devices. I think it's clear enough.The timer begins counting after the device goes into user mode. To ensure the application configuration is valid, you must continuously reset the watchdog reset_timer within a specific duration during user mode operation.
If the application configuration does not reset the user watchdog timer before time expires, the dedicated circuitry reconfigures the device with the factory configuration and resets the user watchdog timer.Regards
Frank
