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Forum: RDM Timing Discussion April 29th, 2010
Replies: 13
Views: 18,190
Posted By sjackman
If the turnaround logic is implemented in...

If the turnaround logic is implemented in software, I agree that the implementation should drop the first preamble byte. If the turnaround logic is implemented in hardware (logic, PLD or FPGA), the...
Forum: RDM Timing Discussion April 28th, 2010
Replies: 13
Views: 18,190
Posted By sjackman
If the inline device uses a switching fabric...

If the inline device uses a switching fabric rather than a store-and-forward implementation, it doesn't have the ability to `hold on to it'. See my response to Gerry above.



Could this be...
Forum: RDM Timing Discussion April 28th, 2010
Replies: 13
Views: 18,190
Posted By sjackman
Hi Gerry, There's two ways that an inline...

Hi Gerry,

There's two ways that an inline device could be designed. For simplicity, let's consider a repeater that has just one responder port and one command port.

1. A microcontroller sits...
Forum: RDM Timing Discussion April 28th, 2010
Replies: 13
Views: 18,190
Posted By sjackman
In-line device turnaround time

Hi,

When an in-line device receives a request packet, it must switch to receiving on the command ports within 132 μs. It then listens to the command ports, and if it sees a falling edge, it must...
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