**** BEGIN LOGGING AT Mon Sep 13 02:59:57 2010 Sep 13 18:00:42 Hi, Sep 13 19:49:40 is there anyone? Sep 13 20:04:58 Blackhorn: don't ask to ask.just go ahead Sep 13 20:29:52 It's bit experimental. I'm trying to use JTAG on a phone (LG KS360). I have made the socket for the JTAG(20 pins connector with 0.4mm of pitch) to a standard HE-10 20pins JTAG. It seems good (autodetect found something). I suppose that is the Arm core(maybe wrong)... but no wait to halting it. I'm seeking people which can help me to solve this issue. Sep 13 22:24:31 Blackhorn, are you using an ARM compatible JTAG adapter? Sep 13 22:25:28 Yes :) Sep 13 22:25:59 I'm using KT-LINK jtag Sep 13 22:26:23 im not famillair with it Sep 13 22:26:44 often times you need to halt the CPU before doing pretty much anything Sep 13 22:27:13 you need to halt the CPU before the bootoader takes over, ive had issues with that Sep 13 22:28:23 hum the bootloader disable HALT mode? Sep 13 22:29:26 im not sure excatly why, but after the IPL/Bootloader start its init' process, if I try anything JTAG it just fails. Sep 13 22:29:59 I found halting the CPU as soon as you send a hard-reset to an ARM device, I get less issues Sep 13 22:30:37 how you do that? Sep 13 22:32:09 depends on the device, do you have TRST# controlled by the JTAG cable? Sep 13 22:32:44 yes Sep 13 22:32:55 i have TRST and SRST Sep 13 22:33:58 ok, so in a power-off state on the host, pop into openocd, get the proper cli options set up and what not Sep 13 22:34:31 turn on the host, and as its booting type init Sep 13 22:35:14 then hold the device hard-reset button, and type halt Sep 13 22:35:25 as SOON as it comes back on, hit enter and sent the halt Sep 13 22:35:54 there is no way to make a script of that? Sep 13 22:36:10 the idea is to initilize openocd so it sees the target, then gets a 'System Reboot' and as its rebooting you halt the CPU before the bootloader takes over Sep 13 22:36:21 no, you need to have proper timing by the user Sep 13 22:36:53 this is what I did, not sure if its what you need to do, but its worth a shot Sep 13 22:37:10 my issue is I was getting 'no data retuened' or all 0xFF back when I did any boundary scans Sep 13 22:37:41 turns out it was an issue with the state of TRST# on my end Sep 13 22:39:34 interesting .. :) i will try. thanks Sep 13 22:41:50 but the bootloader seems to be very quick .. Sep 13 22:44:16 thats why you type halt but wait until you press reset on the host to hit enter to send the command Sep 13 22:48:39 ok Sep 13 22:56:46 i don't know well ARM. there is no way to enter in halt mode with instruction? Sep 13 22:59:08 no clue **** ENDING LOGGING AT Tue Sep 14 02:59:57 2010