Forum Discussion

FabianL's avatar
FabianL
Icon for Occasional Contributor rankOccasional Contributor
17 hours ago

Arria 10: Remote Update Factory Fallback won't work & Watchdog does not trigger

Hello, I have to reopen another topic from last year: Arria 10: Remote Update may brick FPGA and Factory Fallback won't work | Altera Community - 315011 Opposed to my  comments in the orig...
Configuration
Programmable Logic Device
Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
7 hours ago

Note: The fallback to the factory image does not work under the following conditions: If the last 576 bytes of an unencrypted application image bitstream are corrupted. Intel recommends that you examine the last 576 bytes of the unencrypted application image before triggering the application image configuration.

But I have noticed that the binary images of the FPGA bitstream vary in size. So there is no way to check explicit memory locations for these 576 Bytes. Is there any way to identify this section?

My Questions:

  1. Why is the factory configuration fallback mechanism not working in the above described scenario? The Factory load image is valid!
  2. How can I examine/validate a FPGA bitstream in flash memory before executing it. 

 

Status: consulting engineering to check on factory fallback mechanism failure and how to confirm the memory location of this 576 bytes is corrupted or not. 

 

regards,
Farabi