secondary jtag

Started by Shannon Holland in LPC200013 years ago 5 replies

So it would appear that I mostly have secondary JTAG working. I say mostly as while I can debug using JTAG, I can't seem to program...

So it would appear that I mostly have secondary JTAG working. I say mostly as while I can debug using JTAG, I can't seem to program flash. I'm using the Nohau Emul-ARM JTAG emulator - does anyone have any experience with that? When using the secondary jtag interface it's ab


LPC2888 JTAG problem

Started by "prashant.medical" in LPC20008 years ago

Hi, There is a minor development on the Olimex-LPC-H2888 board. I was able to toggle the LED, with ROM settings changed. But then after...

Hi, There is a minor development on the Olimex-LPC-H2888 board. I was able to toggle the LED, with ROM settings changed. But then after that JTAG stopped communicating, and i am continuously getting JTAG communication failure. Would there be any possibility that the JTAG is getting disabled by the USBMem code provided. I am using Keil along with ULINK-ME as JTAG adapter. Pls...


H-JTAG update

Started by tsvetanusunov in LPC200012 years ago 5 replies

Happy New Year to all LPC2000 members :) During the Holidays one of our engineers tried H-JTAG and there is progress! Our tests...

Happy New Year to all LPC2000 members :) During the Holidays one of our engineers tried H-JTAG and there is progress! Our tests show that H-JTAG connects just great to IAR EW-ARM (the only RDI support IDE we have at the moment) and works without any problem with our ARM-JTAG if you set in JTAG Settings nSRST = D4 (by the way while you step


gdb-jtag-arm

Started by larry_amontec in LPC200013 years ago 2 replies

Hi all, Are there guys using gdb-jtag-arm from Tobias Lorenz ? Do you have any advice about this ? If the gdb-jtag-arm was...

Hi all, Are there guys using gdb-jtag-arm from Tobias Lorenz ? Do you have any advice about this ? If the gdb-jtag-arm was successfully tested by some of you, I will re-write the jtag.c, to be able to use gdb-jtag-arm socket with the raven jtag interface. Let me know, Laurent


Latest H-JTAG release comes with H-Flasher

Started by EmbeddedHub in LPC200011 years ago

Hi, the H-JTAG v0.3.0 is just released last week at http://hjtag.blogspot.com . It comes with the H-Flasher. With this software, you don't...

Hi, the H-JTAG v0.3.0 is just released last week at http://hjtag.blogspot.com . It comes with the H-Flasher. With this software, you don't need to use any IDE tool and you are able to program the LPC chip via JTAG interface directly! I have tested it with Olimex ARM-JTAG, it works fine and fast. I am really impressed by the author TwentyOne who writes H-JTAG and H- Flasher! Thanks! ...


LPC2148 JTAG programming on a consistent basis

Started by Sutton Mehaffey in LPC20007 years ago 11 replies

We are experiencing problems with every prototype board (and most production boards) in initial programming using JTAG. It seems for most of...

We are experiencing problems with every prototype board (and most production boards) in initial programming using JTAG. It seems for most of the boards, we always have to program serially first and then JTAG works from then on. Has anyone else had this problem? Shouldn't you be able to program thru JTAG the first time? I have a CPLD that we've never had any JTAG issues with. It alwa...


JTAG Interface on LPC-2478

Started by Jean-Jacques Dauchot in LPC20007 years ago 1 reply

Hi Is it possible the use the JTAG interface signals pins as GPIO. I do not use the JTAG. I recall a while back that the is a way to...

Hi Is it possible the use the JTAG interface signals pins as GPIO. I do not use the JTAG. I recall a while back that the is a way to disable the TRACE/JTAG functions in the chip Regards Jean-Jacques ------------------------------------


help me using jtag for mips

Started by phulepriya in LPC200012 years ago

i want to use jtag for mips (IDT 79RC32334)(jtag without ejtag) i just want to use jtag for the programming the mips and for boundary ...

i want to use jtag for mips (IDT 79RC32334)(jtag without ejtag) i just want to use jtag for the programming the mips and for boundary scanning, and not as a in circuit emmulator can i use simple jtag hardwares for it? HOW TO USE IT FOR PROGRAMMING? BEST REGARDS


Detecting JTAG on LPC236X

Started by misterhershel in LPC200011 years ago 1 reply

I would be nice if my code could detect whether the JTAG interface is connected. I do this now with LPC213X by looking at (PINSELECT2 & 0x4),...

I would be nice if my code could detect whether the JTAG interface is connected. I do this now with LPC213X by looking at (PINSELECT2 & 0x4), and can control power save modes, etc. Since the JTAG pins are dedicated on the LPC236X, there is no PINSELECT state to view. If RTCK is grounded, JTAG AND ETM are enabled, and a bit in PINSELECT10 is set/cleared. However, JTAG only is enabled by ...


H-JTAG

Started by twentyone_cn in LPC200012 years ago 2 replies

Hi all: I am the developer of H-JTAG. H-jtag is a software which can be used to debug ARM7/ARM9 with WIGGLER. If you have any questions...

Hi all: I am the developer of H-JTAG. H-jtag is a software which can be used to debug ARM7/ARM9 with WIGGLER. If you have any questions about H-JTAG, please feel free to email directly or post your message here. My email address is twentyonecn@twen.... Thx twentyone


ARM-JTAG-EW

Started by janchochol in LPC20009 years ago 1 reply

Hi, I have JTAG device ARM-JTAG-EW (http://olimex.com/dev/arm-jtag-ew.html), but problem is that I can not find any working driver/software,...

Hi, I have JTAG device ARM-JTAG-EW (http://olimex.com/dev/arm-jtag-ew.html), but problem is that I can not find any working driver/software, which support this device (I am trying to use it with LPC-H2888 board). I tried OpenOCD (both on Linux and Windows) without any success (trying several configuration including FTDI and J-Link interfaces) - JTAG simply does not communicate (does not resp...


What difference between wiggler and SDT JTAG?

Started by dairlom in LPC200012 years ago

Hi!I have seen some introductions about using of JTAG in ARM.In these paper,main board connect to PC by JTAG adapter.But,two JTAG adapter be...

Hi!I have seen some introductions about using of JTAG in ARM.In these paper,main board connect to PC by JTAG adapter.But,two JTAG adapter be used,the wiggler and the SDT. The pin of JTAG adapter connect to PC parallel port pin is different. now ,I want to use lpc2292 and ADS1.2 development IDE to design a productor,cna I use the wiggler JTAG without additional


Which LPC21xx JTAG porgrammer is better?

Started by yhb123 in LPC20009 years ago

Hi All, If I like to programm LPC21xx chip through JTAG interface on a targer board in production, what is the best way to do it? (Serial...

Hi All, If I like to programm LPC21xx chip through JTAG interface on a targer board in production, what is the best way to do it? (Serial ports have been used in a application, JTAG interface is available.) Which JTAG flash programmer is better and more convenient? Best regards, YH ------------------------------------


Secondary JTag

Started by Owen Mooney in LPC200014 years ago 5 replies

I have added this question as a separate message as it may attract a different response I am debating as t which JTAG pins I...

I have added this question as a separate message as it may attract a different response I am debating as t which JTAG pins I use in my circuit layout. I can spare enough ports for the JTAG lines, but not the trace lines.I understand that enabling the primary JTAG lines also


LPC2148 JTAG pin configuration

Started by Sutton Mehaffey in LPC200010 years ago 1 reply

I have pullups on my JTAG lines (works fine), but noticed that in the pin definitions on page 73 of the user manual that the JTAG pins already...

I have pullups on my JTAG lines (works fine), but noticed that in the pin definitions on page 73 of the user manual that the JTAG pins already have pullups on them. Is this when they are defined as GPIO or do they have them when configured as JTAG? If I don't really need them, I want to remove my 10K pullups from my board. Sutton


Secondary JTAG Sanity Check

Started by Richard in LPC200013 years ago 3 replies

I am planning to use the secondary JTAG (LPC2104) in a design. I have already been debugging (from flash) using the second JTAG...

I am planning to use the secondary JTAG (LPC2104) in a design. I have already been debugging (from flash) using the second JTAG by placing a firmware in flash to enable the second JTAG pins and then starting the debugger. So, in the actual application, I will have to load t


Secondary JTAG problem.

Started by Jim Beagley in LPC200014 years ago 5 replies

Hello again, I have built a board on which I intend to use the secondary JTAG functionality to debug my application. However after...

Hello again, I have built a board on which I intend to use the secondary JTAG functionality to debug my application. However after adding the code snippet to enable the alternate function for the JTAG pins,Programming the part using the primary JTAG port, and then moving the connecti


H-JTAG

Started by Fernando Barboza in LPC200011 years ago 4 replies

Hello all! I have tried to use Keil (V.3.03) with H-JTAG server (V.0.43) and Wiggler, but I didn't have success. ...

Hello all! I have tried to use Keil (V.3.03) with H-JTAG server (V.0.43) and Wiggler, but I didn't have success. When I start debug mode in Keil, my Target (MCB2100) don't is update with new software. The software is starting and breakpoint don't function properly. I made my JTAG according the site H-JTAG. Can somebody help me? ...


Re: JTAG RTCK / Jeeni question

Started by Michael Johnson in LPC200012 years ago

Hi Tom, The RTCK isn't strictly needed. Without the RTCK if the JTAG port works slowly, as is the case of the LPC2xxx, then the JTAG...

Hi Tom, The RTCK isn't strictly needed. Without the RTCK if the JTAG port works slowly, as is the case of the LPC2xxx, then the JTAG cable/debugger has to put in a delay before it samples the TDO. I'm surprised that companies are selling JTAG cables that require RTCK - the cynic in me says it's a way of getting repeat business. Michael


JTAG Debugging of lpc2106

Started by bwende1 in LPC200013 years ago 2 replies

Hallo Im searching for any tutorials or help for JTAG debugging of the lpc2106. I heard that there are some problems with...

Hallo Im searching for any tutorials or help for JTAG debugging of the lpc2106. I heard that there are some problems with JTAG flash-programming!? Is it possible to program the flash or the ram with the JTAG-Adpater? I got the Olimex LPC-P1 Board and the A