Hi, if bypassing were done so that DDR0V75 remains at half of DDR1V5, wouldn't it still make sense to have bypass caps between DDR0V75 and ground, and also DDR0V75 and DDR1V5? I don't see how bypassing to only DDR1V5 instead of ground helps maintain the half-value point.
Both the ZC702 board and microzed board bypass it to ground, and that makes more sense to me. It might be possible to get rid of the DDR0V75 termination voltage altogether depending on the board layout, but I haven't looked into it. Just wondering if there was a specific reason why the Zedboard is different from the ZC702, because I'm referencing both of them for a design I'm working on.
Hi, if bypassing were done so that DDR0V75 remains at half of DDR1V5, wouldn't it still make sense to have bypass caps between DDR0V75 and ground, and also DDR0V75 and DDR1V5? I don't see how bypassing to only DDR1V5 instead of ground helps maintain the half-value point.
Both the ZC702 board and microzed board bypass it to ground, and that makes more sense to me. It might be possible to get rid of the DDR0V75 termination voltage altogether depending on the board layout, but I haven't looked into it. Just wondering if there was a specific reason why the Zedboard is different from the ZC702, because I'm referencing both of them for a design I'm working on.
