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Can't get MC68360 SCC working in transparent mode

Question asked by Kenneth Ljungh on Jun 10, 2020
Latest reply on Jun 17, 2020 by Hui_Ma

What I'm trying to achive is have a base pattern running when nothing else is transmitting and when I want to transmit data, it should be sent and then return to the base pattern.

I've set up two TxBD's, the first one with R and CM flag set and a second one with W flag set to be enabled with R flag later. What I can see happen is that the first TxBD is started and when I later set the R flag for the second, that one is started and when finished the first one is started again. However when I try to start the second one once more, it won't start.