Peter Korsgaard wrote:
"David" == David H Lynch <dhlii@xxxxxxxxxx> writes:
Hi,
David> Also there is no provision for running the UartLite without
David> using interrupts. The Pico E12/E14 frequently use FPGA
David> firmare that does not include a PIC. Some implimentations of
David> the UartLite use dcr instead of memory mapped ports.
No - again like the early serial stuff that's something that can be
added once the base driver is mainlined if there's demand.
Does polling even work decently with the small fifo size of the
uartlite?
I do not care about DCR, but as the responsible party for the only
board I am aware of that does use the uartlite as its
primary serial device, which typically does not have interrupt
support, that is something I care about alot.
You can poll a serial port on an 8080 running 1Mhz with a serial
port with no fifo.
16 bytes on a 300Mhz PPC is heaven. Works fine at 115K baud.
--
Dave Lynch DLA Systems
Software Development: Embedded Linux
717.627.3770 dhlii@xxxxxxxxxx http://www.dlasys.net
fax: 1.253.369.9244 Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too
numerous to list.
"Any intelligent fool can make things bigger and more complex... It
takes a touch of genius - and a lot of courage to move in the opposite
direction."
Albert Einstein
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