Forum Discussion
Arria 10: Remote Update Watchdog unpredicted behavior
- 7 months ago
Hello Fabian,
Thanks for the reply.
Functional error in that context is when the logic that is responsible to reset the WD timer fails to do its task, which will initiate a fallback mechanism. The third paragraph actually correlates with the first paragraph. Factory fallback needs to meet certain conditions when in application configuration for it to happen, so expecting the fallback mechanism to occur with everything working correctly is a wrong understanding.
regards,
Farabi
Hello,
Thanks for the reply. Factory Image Location is fixed to 0x0000_0020 for all tests.
We are executing the register access in this order:
- RU_RECONFIGURATION_MODE = 1
- RU_WATCHDOG_TIMEOUT = 0xFFF
- RU_WATCHDOG_ENABLE = 1
- RU_RECONFIG = 1
Does this make any difference if RU_RECONFIGURATION_MODE is set before the watchdog is enabled?
As mentioned in the main topic. The watchdog is working, if the target application image is invalid/unaliged. In that case the fallback to factory mode is performed, which is not the case if I do not enable the watchdog in the factory image.
best regards.
Fabian
- Farabi_Altera8 months ago
Regular Contributor
Hello,
If your application image is valid and working. The system will load the application image, no fallback to factory image will happen.
Do you expect they system to fallback to factory image when your application image is successfully loaded?
regards,
Farabi