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RM48 linSCI - using SCI in multibuffer mode?

Jack Andrews
Intellectual 370 points
Other Parts Discussed in Thread: HALCOGEN

Section 25.2.5 'SCI Multi Buffered Mode' of the user manual states that the linSCI peripheral has a multibuffer mode, however I can't get it to work.

 I've set up the module in SCI mode using halcogen and have it working in single buffer mode.  But when I set MBUF to 1 and fill TDx, I only see one character being transmitted, instead of 8.  Any suggestions?  I'm trying to do interrupt driven transmission, because the DMA controller cannot keep up with its other tasks if also handling the UART.  So it would be nice to only interrupt every 8 bytes, instead of every byte!

Thanks,

Jack