Hi, On Wed, Oct 22, 2014 at 06:34:06PM +0200, Christian Kudera wrote: > My goal is to connect to a EFM32GG290 [1] with Flyswatter2, but even if > the Flyswatter2 is NOT connected to the EFM32 and I run openocd as root > (openocd -f interface/ftdi/flyswatter2.cfg -f > interface/ftdi/swd-resistor-hack.cfg -f target/efm32.cfg -d 1) I get an > error message (see below for the full log): > > Debug: 226 11 transport.c:240 handle_transport_init(): handle_transport_init > Debug: 227 11 ftdi.c:949 ftdi_swd_run_queue(): Executing 2 queued > transactions > Debug: 228 11 ftdi.c:981 ftdi_swd_run_queue(): JUNK DP read reg 0 = ffffffff
This is exactly the expected behaviour when the target is not connected. I assume you're having problems connecting to the target too, so my advice is to cross-check all the connections between the target and flyswatter. You should have GND, Vcc, SWDIO, SWCLK connected, and optionally SRST, and everything else disconnected. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:[email protected] ------------------------------------------------------------------------------ _______________________________________________ OpenOCD-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/openocd-devel
