DM37XX Memory Issue

Hi Gerald,

I have a question,about MICRON memory ,I use Agilent 9000 Test LPDDR1,it was found that the DQ DQS no Hi-z state, but I configuration SDRC_DQS0 SDRC_DQS1 DQS2 DQS3 enable input, disable pull up and pull down,I want to ask what reason is this cause?

Thanks,
twood

I have no idea. This sounds like a detailed SW question or possibly low level code. Are you having operational issues? Which processor is this on? Which Micron device is this?

Gerald

Hi Gerald,
       processor is DM3730CUS100, MICRON device is
MT29C4G96MAZAPCJA-5,No Hi-z is there a problem?

Thanks,
mike

We have shipped 28,000 BeagleBoard-xM boards and we have seen no memory issues. Now, this was not the CUS package, but POP. So I can’t comment on that particular package of the DM3730. I know there are several boards out there with the CUS package and I have not heard of any issues on that either. Maybe others that have used the CUS package can comment.

Gerald