On 04.12.2010 07:12, Austin, Alex wrote:
I imagine the problem is voltage, actually. The OMAP3530 and other similar devices run their JTAG ports at 1.8V, and the ARM-USB-OCD doesn't like working below 3V.
Therefore the Flyswatter http://www.tincantools.com/product.php?productid=16134&cat=0&page=1&featured is popular for OMAP3 because it supports 1.8V. Dirk
________________________________________ From: openocd-development-boun...@lists.berlios.de [openocd-development-boun...@lists.berlios.de] On Behalf Of Nick Pelling [nickpell...@nanodome.com] Sent: Friday, December 03, 2010 12:52 PM To: openocd-development@lists.berlios.de Subject: [Openocd-development] OpenOCD Cortex-A8 / S5PC100 support...? Hi everyone, I've just plugged my trusty old Olimex ARM-USB-OCD (the Swiss Army Knife of JTAG debuggers) into my shiny new S5PC100-based board and... I'm struggling to see how to get it working even slightly. Has anyone got anywhere with the s5pc100 or other CoreSight-based Cortex A8s (apart from the OMAP3530 as per http://elinux.org/BeagleBoardOpenOCD )? Firas Achkar mentioned trying this on the urbetter board (which I think is actually the original ODroid) a month ago, as did Matt Hsu in November 2009. But trying the latest openocd's autoprobe (as David Brownell suggested then) didn't seem to produce anything so revealing as an ID code. Incidentally, I've read through the CoreSight chapter in the latest Samsung datasheet but that had precisely nothing so useful as a TAP ID code or a DAP ID code to get started. Stepping through every occurrence of JTAG also revealed nothing useful. Any suggestions? Has anyone tried the same thing for the S5PC110 (as per the ODroid-T etc)? Might there be some hidden nest of Samsung SoC OpenOCD developers in a far-flung corner of Korea? Cheers, ....Nick Pelling.... _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
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