On Mon, 10 Feb 2014 15:48:23 +0000, you wrote:

>> >What I'm trying to do is generate a data stream for the 2811 variety of
>> >RGB pixels.  This is while receiving a DMX stream using interrupts.
>> >David...
>>=20
>> I'm not familar with that PIC - some SPI ports always leave a gap, thoug=
h this
>> can sometimes depend whether you're using the "buffer not full" or
>> "transfer complete" to reload.
>
>I would have thought the SPI system would always leave a gap because of th=
e framing pulse that identifies the start and finish of a byte (word) of da=
ta. DMA is not going to help that situation.
>

A seperate byte framing signal is not common on SPI - most SPI devices use =
the select edge to ensure
framing. Some SPI peripherals support it as an option.=20

IME SPI peripherals vary between makers as to whether or not they can gener=
ate gap-free data
streams. PIC32MX definitely can.=20
..=20

--=20
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