JTAG is an interface that allows 1) testing of inter-chip connections 2) programming of Flash, microcontroller and FPGA devices.
1
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2answers
731 views
8-pin JTAG for Marvell Sheeva board
I am looking for different option of interfacing to the JTAG port on a PogoPlug board. I have found the picture below which has silkscreen (my board doesn't),
I have used JTAG before, but it was built ...
8
votes
6answers
2k views
Cheap FPGA dev board
I want to begin with FPGA, but I've never worked with once before.
I want a cheap kit, but I don't know where to start. I can find cheap boards, but then I can't get no information about the ...
1
vote
1answer
125 views
Design advice when daisy-chaining multiple JTAG devices
I know that JTAG was specifically developed to support daisy-chaining of multiple devices, but I am still worried that my board will show up and I won't be able to talk to one of the devices because I ...
0
votes
1answer
214 views
xilinx jtag cable
could anyone please explain to me what are the CTRL and PROG pins in this schematic good for? with CTRL i know what does it do but i don't much get the purpose, so far i would say it's there just to ...
4
votes
2answers
476 views
Particular JTAG to program/debug MCUs from different companies or architectures
Althougth I never used one, I know JTAG is a standardized way to program and debug MCUs. But I see a lot of JTAG from various companies. Can I use a particular JTAG to program/debug MCUs from ...
2
votes
4answers
199 views
Code Running from Debugger but Not Without it
I am using WindRiver JTAG Debugger to debug my code.
Whenever I run the code with Debugger connected, Code works correctly but If I disconnect it, It fails to even Start!
Has anyone faced such kind ...
4
votes
3answers
6k views
Is it possible to make a JTAG interface with an arduino?
If so, could one direct me to a site that tells how to do this? I believe I may have found a way, but I am unsure as to whether or not it would work yet (need to find something to test it on).
This ...
6
votes
4answers
322 views
Should I include a JTAG port on my product?
Both my microcontrollers on my project (dsPIC33FJ128GP804 and PIC24FJ64GA004) support JTAG boundary scan testing. Should I wire these up and expose a JTAG port for hackers? The product is intended to ...
1
vote
1answer
823 views
FTDI based Xilinx JTAG
I have some boards with Xilinx Spartan 3 FPGAs, I would like to upload new bitstreams over JTAG. I was planning on using UrJTAG.
I already have a couple of FTDI based JTAG adapters for ARM targets - ...
0
votes
2answers
300 views
Reading the configuration array of a MAX7000 PLD
Well, I have a little problem in my hands, I need to clone an Altera Max EPM7128ELC84, luckily the PLD comes in a socketable PLCC84 package and has a JTAG interface.
Now my question: what approach ...
3
votes
1answer
190 views
Programming Interface for TI DSP
I'm about to design a PCB for a project with a TI DSP (TMS320C6720). What is the best method to use as an interface for getting the program onto the DSP? I haven't done this part myself before. I'll ...
3
votes
1answer
2k views
Arduino Diecimila (ATMEGA168) + JTAG ICE MKII Hell..Did I Fry the Chip?
Two weeks ago, I pulled out my AVR JTAG ICE MKII and successfully burned a few C programs to my Arduino through AVRStudio 4 SP3. Everything was working very well.
Life caught up to me and I did not ...
1
vote
2answers
834 views
How can I disable the jtag in atmega 32 using serial programmer?
How can I disable the JTAG in the ATmega32 using a serial programmer?
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vote
2answers
1k views
Can I load program a micro with a .out file like I can with an ELF or HEX?
I have a binary of the form ".out", from a project that was generated by an IAR development suite. The release directory does not have an ELF or HEX file. This is for the STM32F103 ARM based micro ...
3
votes
2answers
379 views
JTAG boundary-scan test software to view and control pin states
What inexpensive or free tools could you recommend to view and control pin states via JTAG boundary-scan?
I'm aware of full-featured boundary-scan products that cost tens of thousands of dollars and ...
5
votes
3answers
278 views
Boundary scan developer and testing tools
I have to choose a tool for production testing of fairly dense PCB's with 4+ FPGAs 10+ DSPs, ethernet controllers and PCI controllers.. Does anyone have any experience with any of the tools available ...
8
votes
4answers
426 views
JTAG cable and device interchangeability
I see a lot of device specific JTAG cables such as AVR jtag or specific ARM JTAG. Is there any such thing as a 'standard' JTAG cable that will work on multiple devices? I want something that will ...
6
votes
3answers
1k views
Olimex Arm USB JTAG Programmer Problems
I've recently bought an Olimx ARM-USB-OCD JTAG programmer but I've had difficulty getting it to work.
My primary system is linux, but I've tested it in window with no luck there either. I'm using ...
22
votes
5answers
3k views
Programming microcontrollers: JTAG, SPI, USB oh my!?
I've noticed, with regards to microcontrollers, there are several way to program them. I am sorta familiar with USB as my Arduino's can be programmed via USB.
What is a JTAG or SPI interface?
...
12
votes
3answers
2k views
Jtag debugging AVR
Can anyone advise what hardware and software is required for debugging AVR in circuit.
5
votes
2answers
832 views
ATMEGA32 Jtag flash
Can you recommend an inexpensive product for flashing an in circuit (read: powered) ATMEGA32 via JTAG.
I have a parallel port available on my laptop dock/port replicator, which I am guessing may be ...
