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denismamontov
Visitor
Visitor
310 Views
Registered: ‎09-10-2018

SEM IP doesn't pull down INIT_B

I use SEM IP to detect CRC error after configuration in Kintex Ultrascale+. After injecting error through command interface command_ , I see status_injection = 1 and after that I see status_uncorrectable is 1. 

But pin INIT_B doesn't go down. 

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bpatil
Xilinx Employee
Xilinx Employee
287 Views
Registered: ‎03-07-2018

Hi @denismamontov 

Note that when the SEM controller detects a uncorrectable error (when in its Correction state), it stops monitoring the configuration memory for SEUs and transitions into the Idle state.

  1. Which board you are using Xilinx or custom ? Please provide details
  2. Does your board gets configured when you do not inject error? 
  3. Did you followed  error injection guidelines provided in PG187?
  4. Please check Figure 1‐1: Decision Tree When a Soft Error is Detected in PG187 , check section CRC Failure Indicator, INIT_B in PG187 according to mode set in your SEM IP and page 104
Regards,
Bhushan

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denismamontov
Visitor
Visitor
230 Views
Registered: ‎09-10-2018

1. use custom board with xcku15p -ffva1156

2. I configured FPGA with SEM IP firmware.

3. I did the folowing steps

 a) Set IDLE state 11100000000000000000000000000000000000000000 

 b) Inject error 11000000000000001100011100111000010111000001

 c) set detect only state  11110000000000000000000000000000000000000000

 

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iguo
Xilinx Employee
Xilinx Employee
181 Views
Registered: ‎08-10-2008

You only inject one single bit error and you got uncorrectable error? That sounds abnormal. Please make sure the IP is correctly working at first. Check the status report, heartbeat in Observaton status first and see if all is working.

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