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Altera_Forum
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18 years ago

altufm with i2c not working

Hello I'm using a MAXII EPM570 in one of my Projects. I'm trying to replace a serial EEPROM with the EPM570 thats on the board for other purposes. Therefor I'm using the altufm Megafunction in ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Do you mean the MAX II device did not even issue the ACK after the first 8 data bits transferred from the master? Normally this is because the slave address issued is incorrect. Can you double check?

The I2C megafunction uses gated clock. If you do not have additional logic between the megafunction and the I/O pins, you shouldn't have any problem.