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Altera_Forum
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14 years ago

I2C core issue

Hello. I want to use Wishbone I2C core from OpenCores in my Nios project. Trying to send a byte, i write 0xA2 byte to TxR and set STA and WR bits, the TIP flag asserts high and then never negates ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Should the SDA and SCL be driven with 'Z' in the else condition? Looks pretty straight forward otherwise. I've used that core in the past without any problems but not hooked up to Nios.

The only thing that was a little strange to me before was how you set the clock rate. IIRC it was a generic. Is your clock the same as the default clock the core is expecting?