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I2C Problem on CIII DSP Board

Altera_Forum
Honored Contributor II
‎06-14-2008 04:20 AM
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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:
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Altera_Forum
Honored Contributor II
‎06-14-2008 09:28 PM
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I believe I figured it out. 

I set 2 i2c masters in the SoPC Builder. This lets me communicate to either device.
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Altera_Forum
Honored Contributor II
‎07-17-2008 06:13 AM
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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 ?

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