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AM4379: Starter Kit schematic questions

Sh.Sasaki
Guru 13625 points
Part Number: AM4379
Other Parts Discussed in Thread: TMDXSK437X

Hi all,

I have some questions about TMDXSK437X schematic.

My Reference document
SCH : am437x_starterkit_evm_3k0009.dsn
DS : SPRS851D.PDF
UG : SPRUHW8.PDF


Q1.
DDR_D 0 to DDR_D 31 of SCH and PIN NAME of DS are different.
Is this a typo of SCH?

Q2.
The AE10 pin of SCH is open, but in DS this is described as VSS pin.
Should this pin be connected to GND?

Q3.
The AA23 pin of SCH is TEST_EN, but in DS this is described as VSS pin.
Is this a typo of SCH?

Q4.
The AE7 pin of SCH is open and TPM_WAKEUP, but in DS this is described as VSS pin.
Should this pin be connected to GND? Is this a typo of SCH?

Q5.
The AE8 pin of SCH is open and PMU_HIBZ, but in DS this is described as VSS pin.
Should this pin be connected to GND? Is this a typo of SCH?

Q6.
The description of J15 differs between SCH and UG. Which one is correct?

Q7.
When should I use J16 of SCH?

Q8.
What is the power supply specification of the camera module(OV2659) connected to J15?

I am sorry for asking various questions.

Best regards,
Sasaki

  • 0
    TI__Guru**** 393215 points
    Hi,

    1. No, this is not a typo. See e2e.ti.com/.../514120 for explanation.
    2-5. Whenever there is a discrepancy between reference designs and datasheet, the datasheet information takes precedence.
    6. The connector seems mirrored. I will ask the factory team to comment.
    7. J16 should be placed for Host mode.
    8. I will ask the factory team to comment.
  • 0 in reply to Biser Gatchev-XID
    TI__Guru 63545 points

    6. The PCB was updated to work with the latest camera module. The Hardware User Guide was not updated to match the PCB schematic. I will submit a request to update the Hardware User Guide.

    8. The EVM was designed to provide the proper power to the sensor, so I'm not sure why you need this information. FYI: You should not be planning to use this sensor for future designs since it has been obsoleted.

    Regards,
    Paul

  • 0 in reply to peaves
    Guru 13625 points

    Hi Biser-san, Paul-san,

    Thank you for your support !

    Best regards,

    Sasaki