On Tue, Jun 16, 2015 at 7:10 PM, Paul Elliott <[email protected]> wrote: > > > Does anyone make an gpio 2 jtag cable to be used with openocd > and raspberry pi? Or do you have to heat up your soldering iron? > Thank You for your response.
Any openwrt router with GPIO pins available in sysfs /sys/class/gpio with 4 GPIOs can be used by urjtag or openocd as jtag cable (you have to check that both sides uses 3.3v which is most of the cases). If you want a faster version, the RPI has MMAP gpio pins that are way faster then userspace sysfs (with openocd only). You could also use USB adaptors with sysfs (FTDI, PL2303HXD): http://www.zoobab.com/ftdi-gpios-sysfs http://www.zoobab.com/pl2303hxd-gpio But in practice, you could salvage some LEDs on any openwrt router and recycle them as GPIOs in sysfs. -- Benjamin Henrion <bhenrion at ffii.org> FFII Brussels - +32-484-566109 - +32-2-4148403 "In July 2005, after several failed attempts to legalise software patents in Europe, the patent establishment changed its strategy. Instead of explicitly seeking to sanction the patentability of software, they are now seeking to create a central European patent court, which would establish and enforce patentability rules in their favor, without any possibility of correction by competing courts or democratically elected legislators." _______________________________________________ openwrt-users mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-users
