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Altera_Forum's avatar
Altera_Forum
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17 years ago

I2C Problem on CIII DSP Board

The board is a CIII EP3C120F780C7

It has two High Speed Mezz Connector (HSMC) ports which I plan to use as follows:

HSMC_A: Bitec Camera (For receiving a video signal)

HSMC_B: Bitec Quad Video Card (For displaying the image through DVI/VGA)

I need to send initialization messages to both boards using the I2C interface but am only given the option of specifying pins for one of them! Currently I have the pins for SDA/SCL set on HSMC_B for my video output. The pins for the camera on the HSMC_A side aren't in use. Further, SOPC Builder won't let me define 2x I2C masters.

It may be that I am not clear on the I2C protocol and am asking a silly question. Anyone? :confused:

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    I believe I figured it out.

    I set 2 i2c masters in the SoPC Builder. This lets me communicate to either device.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    Errr..Foos, could you please show me the way how to add i2c master in the sopc Builder...is there some free I2C core for nios2 ?