Re: gEDA-user: Ok, who moved pin 4?

[DJ Delorie <dj@xxxxxxxxxxx>]

DJ Delorie <dj@xxxxxxxxxxx> writes:
> First off, I've got a board that has a USB chip (FTDI232R) connected
> to an R8C/20, connected to a bunch of headers.

Update... It works!  I had some problems programming the R8C, which
turned out to be solder.  I used solder wick to remove some shorts,
but it sucked enough solder out to make some of the connections
marginal.  A swipe with the iron and a little more solder cleaned that
up.  I also added a pullup resistor on one signal line so I wouldn't
have to program the 232R chip every time; that lets me use the stock
FTDI serial drivers instead of the custom D2XX library.

I've updated the web page with my changes:
http://www.delorie.com/electronics/usb-gpio/

At the moment the one LED on the r8c is blinking like mad.  I've
plugged an RGB led board into the gpio pins; that blinks colors too.

I have a symbol for the five-pin mini-B if anyone needs it, else it
will show up in gedasymbols eventually.  Or you can suck it out of the
schematic file :-)


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