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Last Post 19 Oct 2010 08:44 PM by  loginreg@gmail.com
I2C2 works?
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jkg
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04 Aug 2010 07:01 AM
    Hello,

    Has anyone had experience with I2C2 on the SOMOMAP3530?

    I seem to have SDA stuck high. In addition to the 4.7K pup shown on the torpedo schematic, I have a 3K on our board, and have the bus connected to a tvp5150.

    I see lots of issues with I2C2 on the beagle, and have verified my mux pins as:

    MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0)) /*I2C2_SCL*/\
    MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0)) /*I2C2_SDA*/\

    Both of which read back as 0x118.

    Thanks,
    Joel.
    loginreg@gmail.com
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    19 Oct 2010 08:44 PM
    The I2C2 interface does not appear to have any problem on other boards. The Beagle board works fine as long as extra pull up resistors are soldered in.

    Remember that the IO is 1.8v.

    Forums Texas Instruments SOMs and Development Kits OMAP35x, DM3730, AM3703 Torpedo SOM Development Kit
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