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NOR Flash Writing issue

Hello all

I am using DM648 on a customized board. I have designed the customized borad using DM648EVM. When I use the flash utility on DM648EVM to write to the NOR Flash I successfully write in to it but when i do the same on the NOR Flash of my cutomized board after erasing the NOR Flash i get the abort error in CCS. The NOR Flash on DM648EVM and on my customized board is same of Spansion.

The following is the status I see on CCS output window when using the Flash Utillity application on two boards the EVM and my customized: -

Customized Board

 

Starting DM648_NORWriter.

NOR Initialization:

            Command Set: AMD

            Manufacturer: AMD

            Size: 0x10 MB

Enter the binary AIS UBL file name (enter 'none' to skip):

C:\dvsdk_1_10_00_26_DM648\flashutil\UBL.ais

Erasing the NOR Flash

Erased through 0xA0020000

Erase Completed

Writing the NOR Flash

Abort ocurred.

 

Buffered write failed. Trying normal write

 

Normal write also failed

NOR Write Failed...Aborting!

            ERROR: Writing NOR failed.

            NOR flashing failed!

 

 

Actual DM648EVM Board

Starting DM648_NORWriter.

NOR Initialization:

            Command Set: AMD

            Manufacturer: AMD

            Size: 0x10 MB

Enter the binary AIS UBL file name (enter 'none' to skip):

C:\dvsdk_1_10_00_26_DM648\flashutil\UBL.ais

Erasing the NOR Flash

Erased through 0xA0020000

Erase Completed

Writing the NOR Flash

NOR Write OK through 0xA0004C10.

Enter the binary AIS application file name (enter 'none' to skip):

 

 

 In the schematics I removed the MUXES near Video Port because i was not using the Video Ports and now the signals which come to NOR Flash through Muxes are coming direct does this making the difference?