The Olimex ARM-JTAG-SWD has a 27 ohm resistor in series with the SRST line.
I’m using about a 3-inch ribbon cable between it and the board; the SWD
adapter is plugged directly into the JTAG-TINY, as they recommend.
Jay Maynard, K5ZC
2018-02-24 12:48:23 +
On Sat, 24 Feb 2018 00:52:44 +0100
Tomas Vanek via OpenOCD-devel
> On 24.02.2018 0:04, Jay Maynard wrote:
> More important is a small series resistor (33 ohm) on SWD - ringing
> prevention. Again not necessary if the cable to adapter is short.
*Sent:* Friday, February 23, 2018 4:38 PM
*To:* Jay Maynard <jmayn...@kahlerautomation.com>
*Subject:* Re: [OpenOCD-devel] Atmel ATSAME70 examination incomplete
I connected my custom SAME70 board to a
From: Tomas Vanek [mailto:tom_...@users.sourceforge.net]
Sent: Friday, February 23, 2018 4:38 PM
To: Jay Maynard <jmayn...@kahlerautomation.com>
Subject: Re: [OpenOCD-devel] Atmel ATSAME70 examination incomplete at startup
I connected my
I connected my custom SAME70 board to a FT2232 based adapter just to
make sure that current git master works.
It does. See attached log in -d4 level as you used.
There must be some electrical problem in SWD signals, grounding or supply.
On 23.02.2018 23:06, Jay Maynard wrote:
Apologies for the triple post. Can I drop an anvil on Sourceforge now?
Anyway, a couple of updates since that was written:
1. I tried setting the bits in the write command to 0. Didn't change the
2. A scope on the SWD data line shows nice clean square waves for the