HP30b flashed with WP31 no longer responding

[BarryMead]

(01-13-2016 12:08 AM)quantalume Wrote:  I ordered a Segger J-Link for this purpose. Unfortunately, I'm still awaiting delivery, so I can't confirm it works in this application. It should, though. There is a reduced-cost "EDU" version available for 50€, or you can take your chances with one of the Chinese clones.

A company named OLIMEX makes a cheaper open-source software version of the ARM JTAG programmer that sells for only $43.17 (39.95 euros). It can be ordered from this web site:
https://www.olimex.com/Products/ARM/JTAG/ARM-USB-TINY/