• State TI Thinks Resolved
  • Locked Locked
  • Replies 10 replies
  • Answers 2 answers
  • Subscribers 31 subscribers
  • Views 222 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM2634: 64MB Memory access with Q-SPI for AM2634

TEMC
Intellectual 855 points
Part Number: AM2634

Tool/software:

Hi, can you check and confirm if we can use 64MB Flash memory using external NOR Flash with Q-SPI interface in AM2634 MCU. If so, suggest any suitable parts.

In the evaluation board of AM2634, we are testing using 16MB. but our application requires external flash memory up to 64MB min.

  • 0
    TI__Guru*** 135155 points

    Hello TEMC,

    For QSPI we have errata item i2364 which limits the memory size in memory mapped mode to 8MB. So if you need 64MB for code execution that will not be possible. You can use AM263P instead which does not have this limitation and the OSPI peripheral on AM2634 can operate in QSPI mode as well.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Intellectual 855 points

    Hi Ralph, 

    As of now we can't change the MCU because of customer request. Can you confirm, if we use GPMC for accessing the external memory like 64MB flash and 16MB SDRAM?

  • 0 in reply to TEMC
    TI__Guru*** 135155 points

    Hello TEMC,

    GPMC can be used to access:

    • Asynchronous, synchronous, and page mode (available only in non-multiplexed mode) burst NOR flash devices
    • NAND flash

    Note that GPMC is not a peripheral that is designed for the device to boot from, so you will need a method for initial booting using UART or QSPI.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Intellectual 855 points

    we require 16MB PSRAM for our design, can you suggest any suitable parts? that is compatible with AM2634

  • 0 in reply to TEMC
    TI__Guru*** 135155 points

    Hello TEMC,

    I will check with our team, I believe there may be at least one I can recommend.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    TI__Guru*** 135155 points

    Hello TEMC,

    One device we are considering using for a future hardware design as it meets specifications is APS12808L-3 OBMX-BAA.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Intellectual 855 points

    Hi Ralph,

    Thank you for the suggestion, can you also share reference schematic for interfacing PSRAM. So we can consider the same in our designs also

  • 0 in reply to TEMC
    TI__Guru*** 135155 points

    Hi TEMC,

    Let me see if we have any draft schematics that could be shared. I'll get back to you within the next two days.

    Best Regards,

    Ralph Jacobi

  • 0 in reply to Ralph Jacobi
    Intellectual 855 points

    Hi Ralph,

    The PSRAM which you have been suggested was supported with DDR but AM2634 does not has any DDR. Then could you please verify once and reply.

  • 0 in reply to TEMC
    TI__Guru*** 135155 points

    Hello TEMC,

    Okay so the only PSRAM we are looking into right now is this OSPI based on for use with OSPI enabled devices. That was a miss on my end that we only have that as a recommendation. We don't have any recommendations for one that interfaces with GPMC on AM263 at this time.

    Best Regards,

    Ralph Jacobi