CheckStop (double bus-error)
Primary and backup CPU had been stopped. I found the following message in the controller log and backup controller log.
What does it mean?
CPU is PM866.
This PM has been unintentionally stopped.
Reason:
- CheckStop (double bus-error) reset
What does it mean?
CPU is PM866.
Asked 1 month ago
Answers
0
Hi
This is error is more attributed to Microcontrollers i mean not PM866 specific.
CheckStop condition is halting the CPU entirely due to the onset of an error. This is a kind of enhanced error handling designed to guard against hardware failure due to external environments or improper electrical connections.
A double bus-error occurs when , there is bus exception error occurs processor process by stacking info on supervision stack, meanwhile if there is another occurs while processing the first one the processor halts. this is doubel bus error.Another low point of this is , we need an external reset to restart the processor again.
this error could be due to various reasons
I assume mostly due to
a hardware error like CEX, or backplate or due to heat or humidity.
A software bug also can cause this error.
This is error is more attributed to Microcontrollers i mean not PM866 specific.
CheckStop condition is halting the CPU entirely due to the onset of an error. This is a kind of enhanced error handling designed to guard against hardware failure due to external environments or improper electrical connections.
A double bus-error occurs when , there is bus exception error occurs processor process by stacking info on supervision stack, meanwhile if there is another occurs while processing the first one the processor halts. this is doubel bus error.Another low point of this is , we need an external reset to restart the processor again.
this error could be due to various reasons
I assume mostly due to
a hardware error like CEX, or backplate or due to heat or humidity.
A software bug also can cause this error.
Answered 1 month ago
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