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EV2500: Feedback on EV2500 design flaws and request for bin

user3461797
Prodigy 91 points

Part Number: EV2500
Other Parts Discussed in Thread: EV2400

Dear Support Team,
 
I apologize for raising two issues in the same support request.
 
Issue 1: EV2500 Design Flaw
In my understanding, the pull-up on the EV2500 should be software-controllable (enable/disable). However, in Figure 4-3. BMS061 Serial Bus Interfaces on page 13 of the EVM User's Guide: EV2500 (sluuda1.pdf), the drain and source of Q2 and Q5 (2N7002W-7-F) appear to be reversed. The purchased EVM was manufactured according to this incorrect schematic, resulting in the pull-up being permanently enabled and unable to be turned off. Could you please verify this?
 
Issue 2: Request for EV2500_MSP_EXP432E401Y_tirtos_ccs.bin File
Section 3.5 Programming Options in the sluuda1.pdf provides a clear and concise update method for the EV2500, but it does not specify how to obtain the upgrade file "EV2500_MSP_EXP432E401Y_tirtos_ccs.bin". Could you please provide me with this bin file? My email address is liuchangyong1992@outlook.com and 605000855@qq.com .
Thank you very much for your assistance.
Best regards,

jesus liu

  • 0
    TI__Mastermind 44065 points

    您好，

    已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

  • 0 回复 Taylor
    TI__Mastermind 43510 points

    您好，

         1  请参考 EV2500 Evaluation Module “2.4.1 Pull-Up Interface” 可通过硬件设置上拉电压，但不具备软件设置pull up 功能。

         2  EV2500固件属于TI内部资源，目前无法提供。

  • 0 回复 Alice
    Prodigy 91 points
    Hi Alice,
    Thank you for your response.
    1. What I meant is that pins 2 and 3 of Q2 and Q5 are swapped. This causes the body diodes of both MOSFETs to create a short circuit to ground. My concern is specifically about this hardware issue, not about further software improvements at this stage.
    2. I fully understand the need to keep internal documentation confidential, and I truly appreciate your honesty.
    Best regards,
    Jesus Liu
  • 0 回复 user3461797
    TI__Mastermind 43510 points

    您好，

    user3461797 说：
    What I meant is that pins 2 and 3 of Q2 and Q5 are swapped. This causes the body diodes of both MOSFETs to create a short circuit to ground. My concern is specifically about this hardware issue, not about further software improvements at this stage.

          这部分MOSFET原理图是错误的，感谢您的指正。

          这部分您也可以参考EV2400的电路连接。