Forum Discussion
Mikexx
Occasional Contributor
1 year agoCyclone V: A PLL with multiple clocks and independently adjusting phase of a clock
I have a PLL with 5 output clocks. 4 are at 56.25MHz and a fifth is at 225MHz that is used to sample the other outputs to confirm any phase shift in Signal Tap. The tick-box for "Enable access to ...
AqidAyman_Altera
Regular Contributor
1 year ago- Mikexx1 year ago
Occasional Contributor
@AqidAyman_Intel wrote:Okay, this sounds more like an RTL level issue rather than anything with the bitslip and LVDS IP. Maybe check the RTL viewer to see if synthesis is fanning out the bitslip_pulse signal to each bit of the bitslip control in the LVDS SERDES IP.
I'm not using any SERDES IP.
While I might agree an RTL investigation will prove the point, the issue is that this is dependent on synthesis, where there is no obvious way to lock down the relationship with cntsel[] and the clockout signals in the PLL IP.