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CCS/TMS320C6748: TMS320C6748 NOR Writer Failing OMPL-138 Nor Flash Writer ?

Ramachandra Parlapalli
Expert 1800 points
Part Number: TMS320C6748
Other Parts Discussed in Thread: OMAP-L138, OMAPL138

Tool/software: Code Composer Studio

Hai Sir,

I am using TMS320C6748 processor with MT28EW512ABA1HPN NOR flash using before we used MT28EW256ABA properly working but in 512Mb problem occurring through OMAPL-138 AISGen software.

Below error displayed.

Starting OMAP-L138 NORWriter.
CFI Query...passed.
NOR Initialization:
    Command Set: AMD
    Manufacturer: INTEL
    Size: 0x40 MB
Enter the binary AIS application file name (enter 'none' to skip):
ASPB_Monitor.bin
    INFO: File read complete.
Erasing the NOR Flash
Erased through 0x60020000
Erase Completed
Writing the NOR Flash
Data verify failed.

We are selected below method in AIS Gen Software:

Device Type: d800k006 DSP

Boot mode : NOR FLASH

Clock Source: CRYSTAL 25MHz

FLASH DATA WIDTH:16-bit

CS2 setup: 0x3FFFFFFC

Thanking You,

Regards,

Ramachandra

  • 0
    TI__Guru 50170 points

    Hi, Ramachandra,

    Could you let us know which SDK (RTOS or Linux) you are using, and its release version?

    Thanks!

    Rex

  • 0 in reply to Rex Chang
    Expert 1800 points

    Hi Rex,

    I am using OMAPL-138 starterware not using any OS through this AISGen software i am downloaded?

    for 256Mb Micron previos i am worked but 512Mb first time?

    I am able to read Manufacture ID and Device ID while loading File L2 RAM to Flash failure occurs not writing?

    could you give me the any suggestions, Thanking you,

    Regards,

    Ramachandra.

  • 0 in reply to Ramachandra Parlapalli
    TI__Guru** 115880 points

    Ramachandra,

    If you are able to read the manufacturer ID and Device ID, can you also confirm if you can read the first 32 KB of the NOR flash ? Can you also confirm that the EMIF NOR connection with OMAPL138 matches the guidelines provided in Appendix B of the guidelines provided in the schematic review guide :

    Are there any code changes to the NOR flash writer that we provided. Each CS on EMIF only has 32 KB of direct address mapped in the memory map, so how are you accessing > 32KB data.

    Regards,

    Rahul

  • 0 in reply to Rahul Prabhu
    Expert 1800 points

    hai sir,

    Based on above pdf(NOR HardwareConnectionfor 32 M x 16 Device) we have same thing used but only single chip select (CS2) used in below diagram.

    For us only 32MB is enough other apart not required please check in above schematic diagram then i'm able to read the device ID and size proper way but write failure occurring.

    Could you give me some suggestion, Thanking you,

    Are there any code changes to the NOR flash writer that we provided. Each CS on EMIF only has 32 KB of direct address mapped in the memory map, so how are you accessing > 32KB data.?

    I am not changed in nor writer code

    Regards,

    Ramachandra

  • 0 in reply to Rahul Prabhu
    Expert 1800 points

    Hai sir,

    When i am writing to nor flash properly writing and poweron reset time it's showing 0xFFFFFFFF after soft reset data showing original data showing i checked in memory browser window of ccs.

    May be it's the problem of reset not occring on power on time or any problem sir.

    Thanking you,

    Reagards,

    Ramachandra