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paulgeisler's avatar
paulgeisler
Icon for New Contributor rankNew Contributor
3 days ago

BSP generation for I2C

How do I get the BSP generator to generate code for the I2C that I added into the platform of the max10? It generates code for the JTAG but not the I2C. I made sure that I connected the SDA and SCL l...
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umut_arrow's avatar
umut_arrow
Icon for Occasional Contributor rankOccasional Contributor
2 days ago

Hi,

Firstly, your csr isn't connected looking at the screenshot of Platform Designer. Also you need to set the I2C IP to Avalon-MM Slave, instead of Avalon-ST.

Lastly, I think you need to make sure your SDA/SCL pins are wired correctly. 

I'm assuming you're following the Nios V tutorial, since your project is named AN 985. Take a look at Avalon I2C host core documentation as well, specifically "I2C Serial Interface Connection" section. SDA_IN and SDA_OE both should be connect to a bi-directional open-drain buffer, same as SCL_IN and SCL_OE.