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Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 14,181
Posted By berntd
Great minds think alike. as I type this,...

Great minds think alike.

as I type this, our porgrammer is trying to split the reception into to DMA transfers.
First after 3 bytes to get the length and then another transfer for the rest.
...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 14,181
Posted By berntd
Eric, I know. The responder has no chance...

Eric, I know.

The responder has no chance of processing the packet due to OS lag. that is why we are responding with ACK_TIMER as already discussed in another thread here.

I am not sure how...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 14,181
Posted By berntd
Hi again I have just concluded the...

Hi again

I have just concluded the following:

The controller timing has to allow 2.8ms for a responder to answer.

Interpreting that, any controller must thus wait 2.8ms to recieve a...
Forum: RDM Timing Discussion May 26th, 2015
Replies: 10
Views: 14,181
Posted By berntd
Hi and thanks. This is a responder based on...

Hi and thanks.

This is a responder based on a Linux non real time environment.
The OS is busy doing heaps of other stuff so we are not able to use interrupts as it takes too much cpu time and we...
Forum: RDM Timing Discussion May 25th, 2015
Replies: 10
Views: 14,181
Posted By berntd
Responder Packet Timing issue

Hello

We have just ran into a problem with the timinig as follows:

Table 3-3 Resonder Packet Timing
Line 1 Receive: Inter-slot time Max = 2.1ms


Table 3-4
Line 1 Controller request...
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