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LAUNCHXL-F28379D: I2C Pin

Mark Philip Felipe
Genius 11190 points

Part Number: LAUNCHXL-F28379D

Hi Team,

We are finding a problem with I2C pins 104/105 in LauchpadXL TMS320F28 v2.0. The interruption works, but they don't receive anything in the registers. I have tried 2 i2c dongles with the same result.

Hoping for your inputs.

Thank you.

-Mark

  • 0
    TI__Mastermind 45606 points

    Hi Mark,

    Can you provide some more details on your setup. Is the F2837x acting as the master device? What is the i2c dongle you mentioned?

    Mark Philip Felipe said:
    The interruption works, but they don't receive anything in the registers.

    You're meaning your F2837x device I2C interrupts are triggering OK, or something else? Probing the I2C lines with a logic analyzer (if possible) typically helps in debugging these kinds of issues.

    Can you share a portion of your I2C code, initialization, interrupts, write/read functions, etc..

    Best,

    Kevin