git.gag.com Git - hw/mpserial/log

Keith Packard [Tue, 18 Jun 2013 04:36:41 +0000 (21:36 -0700)]

µPusb variant for Hammond box

Prototype attempt to shield light and make the box less fussy

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Mon, 18 Mar 2013 23:17:06 +0000 (16:17 -0700)]

Switch to shared symbols and packages

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Sun, 10 Feb 2013 10:06:24 +0000 (02:06 -0800)]

Change all resistors to panasonic 1/10W 1%

Try to settle on one family to keep life easier

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Thu, 24 Jan 2013 21:06:39 +0000 (13:06 -0800)]

Change label to say MicroPeak USB interface

Trying to be consistent

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Tue, 15 Jan 2013 22:34:34 +0000 (14:34 -0800)]

Build stencil in 'all' target

Avoids mistakes when sending files off

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Tue, 15 Jan 2013 22:30:08 +0000 (14:30 -0800)]

Update to shared scheme files

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Tue, 15 Jan 2013 22:29:14 +0000 (14:29 -0800)]

Add digikey part number to FT230

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Bdale Garbee [Sun, 6 Jan 2013 19:00:13 +0000 (12:00 -0700)]

commit | commitdiff | tree

Keith Packard [Wed, 2 Jan 2013 17:46:10 +0000 (09:46 -0800)]

build zip file always

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Sat, 29 Dec 2012 07:56:00 +0000 (23:56 -0800)]

Add the USB resistors back in

These can protect the board from an accidental cable mishap, so we'll
put them in just in case.

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Sat, 29 Dec 2012 07:23:54 +0000 (23:23 -0800)]

Oops. Got the FT230 D+/D- lines swapped

Flip them around, and remove the 33ohm resistors at the same time.

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Sat, 29 Dec 2012 06:39:14 +0000 (22:39 -0800)]

Playing with other resistor values

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Tue, 18 Dec 2012 06:55:22 +0000 (22:55 -0800)]

Update resistor values to match what works. Add LED.

Testing revealed that the phototransistor appears to need quite a bit
of current to get the rise time within reasonable limits. Change the
resistor feeding it to 680 ohms (from 3.3k). This also required
changing the op-amp bias voltage from 1/2VCC to 90% VCC. Swapping in a
1k resistor for the 10k there fixed that nicely.

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Fri, 14 Dec 2012 19:15:58 +0000 (11:15 -0800)]

Add outline

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Fri, 14 Dec 2012 06:09:13 +0000 (22:09 -0800)]

Add some silk to the back side

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Fri, 14 Dec 2012 06:01:40 +0000 (22:01 -0800)]

Finish the first version of the board

Signed-off-by: Keith Packard <keithp@keithp.com>

commit | commitdiff | tree

Keith Packard [Fri, 14 Dec 2012 02:37:30 +0000 (18:37 -0800)]