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hello. i am trying to debug early init (bootloader and early linux kernel part) on the linux dev board with msm8996 (application processor side). on connect with jlink commander latest version i can see the following id's TotalIRLen = 20, IRPrint = 0x000211 JTAG chain detection found 3 devices: #0 Id: 0x5BA00477, IRLen: 04, CoreSight JTAG-DP #1 Id: 0x000016DD, IRLen: 05, Unknown device #2 Id: 0x1006F0E1, IRLen: 11, Unknown device if i doing "connect" as cortex M3 i am able to debug some code, bu…

thank you very much, this was really helpful. i have tried on my enviroment, but did not get it working yet, but i will keep trying. in my case on run of the batch file, target is freezed, until i am connecting gdb clients. and seems like still only 1 core is working correctly, others are showing 0 PC on attach. i will try with gdb client you suggested. could you please tell me 1) is the gdb server(s) run freezes target in your case? 2) should those addresses (like 0x82150000 etc) be physical or…

Quote from aaa408: “ok. i was using the MCIMX6Q4 for jlink commander (still not sure if it is correct or not). if i am doing >r command, the board is resetting and sitting in some small address like pc=0x00000577 i am able to do >g at that point and the board is starting. but finally it hangs at some point after my multicore app starts ” i understand that part now. seems like my multicore code start is not 100% correct. the problem was in the GPR3, GPR5 and GPR7 regs. if i am doing jtag reset at…

if anybody interested, gdb is working much better for me now. not sure if it is due to --device setting or due to i am opening-closing gdb server app after each board reset. it would be nice to know how to setup the key or script for the command line version to avoid "registers init" on attach.

Hi, All could you please explain how to run 4 instances of the jlink GDB server on windows to debug the multicore app on the imx6q? thanks in advance...

ok. i was using the MCIMX6Q4 for jlink commander (still not sure if it is correct or not). if i am doing >r command, the board is resetting and sitting in some small address like pc=0x00000577 i am able to do >g at that point and the board is starting. but finally it hangs at some point after my multicore app starts basically i do not need to do any download, because my stuff in on SD card, i need just run the thing and stop on breakpoint where it is needed. could you please advice the gdb start…

Hi, Alex thank you very much for quick reply >Which address did you write to? i think the e-mail was info@segger.com from the web site >Anyhow, the product description does not say anything about ULTRA / ULTRA+ what i done before buying was look at that picture and tried to see same product on Segger web site. but if it will work finally this one is even better, because it is cheaper in case if we decide to buy some more boxes. >You *must* select the device in whatever software you are using... …

hi, all writing here because support e-mail on the site does not seems to work. maybe 400$ price is too small for customer support, or forum is more proper place for questions... i am trying to use jlink basic to work with freescale imx6 quad core microprocessor. the shop i bought it had the picture of ultra model on the web site lib.chipdip.ru/321/DOC000321562.jpg, but when i am bought it i saw that this is a "base" model, which has only gdb license included. the questions i send to support e-m…