Reply by snuz...@yahoo.com September 26, 20082008-09-26
I'm using a 6416 DSK board and had a question regarding the EMIF interface.

I'm trying to send data from internal memory via QDMA out onto the EMIF pins on the 5-6K interface board which then go to a DAC. I'm using the WR# signal off the 5-6K board to indicate to the DAC that new data is available.

I noticed that the EMIF data as well as the WR# signal were glitching and after reading through some documentation (and also later read on another thread on this site) determined it was the SDRAM refreshing. I disabled the refreshing since I'm not using it.

However I'm still seeing at times the EMIF signals glitch. I know the interface is shared, but are there any devices/refreshes that can be disabled to remove the glitching? Essentially - is there any way to get stable signals from EMIF without intermittant glitching?

Thanks.