DLPLCRC410EVM: prom(dlpr410ayva) has been erased

Jack Chen

Part Number: DLPLCRC410EVM
Other Parts Discussed in Thread: DLPR410B

Hello,

I have a dlplcrc410EVM.And i erased the prom,and now dlp410 has not worked.What should i do,i have not find the "mcs" file for this prom.

9 months ago

0 Jack Chen 9 months ago

Prodigy 32 points

in the ISE impact UI，there are two eeprom devices. I use "erase" command by my fault.

0 Tristan Bottone 9 months ago in reply to Jack Chen

TI__Prodigy 440 points

Hi Jack,

Thanks for reaching out and using the E2E forums. An expert from our team will review the thread and get back to you shortly.

+1 Fizix 9 months ago in reply to Jack Chen

TI__Mastermind 41590 points

Hello Jack,

The DLPR410 is the pre-programmed prom that you purchase from TI. We do not provide the *.mcs file for the LX30 (main controller) PROM. Nor can you read it back and save it.

On the TI sold EVM the LX30Fiz and it's associated PROM are not in the JTAG chain by default. At some point the 0 Ohm resistors were moved around so it would appear in the chain. The danger is that you can accidentally erase the main controller read protected program in the PROM.

You will need to purchase a new DLPR410 prom and have a local board shop remove the old one and mount the new one. Be aware that this is a 48 "pin" uBGA part. I believe the current version is DLPR410B, which should work just the same.

Fizix

0 Jack Chen 9 months ago in reply to Fizix

Prodigy 32 points

Thanks for your reply.Another question，as you mentioned，“0 Ohm resistors” represented which one in the Dlplcrc410evm.I don‘t know the reason for why this prom appeared in the chain。Could you give me some explain？

0 Fizix 9 months ago in reply to Jack Chen

TI__Mastermind 41590 points

Hello again Jack,

Where did you get the board from? The default production EVM does not have this in the chain.

In the schematic for this board there are three resistors shown in the schematic:

R38 [default - not populated]
R39 [default - populated]
R40 [default - not populated]

To add it to the chain then it must be rewired as:

R38 [populated]
R39 [not populated]
R40 [populated]

On the controller board these should be just a little above the DLPR410 prom chip.

Fizix

0 Jack Chen 9 months ago in reply to Fizix

Prodigy 32 points

Hello Fizix，

I buy it form ti.com. Thanks a lot, i see.

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DLPLCRC410EVM: prom(dlpr410ayva) has been erased