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Release Note
xxx_A501.fpg

MPI Version
FPGA Version
03.04.12
251_A501.fpg
03.04.09
246_A501.fpg

  Table of Contents
     
    Changes and Bug Fixes
     

251_A501.fpg
      sqRecoveryTest fails (injectError register) - Bug - Fix- FP774

250_A501.fpg
      Intermittent CRC errors occur during idle cable test - Fixed Bug - FP735

246_A501.fpg
      New FPGA xxx_A501.fpg - New FPGA - FP675


 

251_A501.fpg

  sqRecoveryTest fails (injectError register)
    Reference Number: FP 774
    Type: Bug Fix
    FPGA Version: 251
   

Problem/Cause:

The sqRecoveryTest program may fail due do malfunction of the injectError register. Other test programs which use this test register are likely to fail also. No errors were observed in normal operation.

For ZMP FPGA images 250_A301.fpg and 250_A501.fpg, a logic error allowed a test register to intermittantly malfunction. This error was latent in all prior versions, although never observed until now. Note XMP images 250_9201.fpg and 250_9601.fpg are not affected.

   

Fix/Solution:

The FPGA source code has been corrected in version 251.

 

250_A501.fpg

  Intermittent CRC errors occur during idle cable test
    Reference Number: FP 735
    Type: Fixed Bug
    FPGA Version: 250
   

Problem/Cause:
Nodes on the cables attached to the controller IN or OUT ports may intermittantly report a CRC error when Idle Cable Test is run on that cable. The error is benign (no packet data is lost) but causes confusing statistics.

   

Fix/Solution:
The FPGA logic was corrected to prevent disabling a transmit port while a packet is in progress.

 

246_A501.fpg

  New FPGA xxx_A501.fpg
    Reference Number: FP 675
    Type: New FPGA
    FPGA Version: 246
   

Description:
A new FPGA image, xxx_A501.fpg, was introduced using a larger FPGA to increase the packet buffer memory from 16 kBytes to 32 kBytes.


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