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Memfault Beyond the Launch

Problems with JTAG and LH79520

Started by db in comp.arch.embedded20 years ago 7 replies

I am in the process of writing a JTAG controller for an LH79520 board I am building. At this point I have been able to successfully access...

I am in the process of writing a JTAG controller for an LH79520 board I am building. At this point I have been able to successfully access the instruction and data registers. To verify that things are working I have run loop back tests through the registers. The problem I am having is that none of the instructions in the bsdl are working . For example, if I try to run the IDCODE command ...


JTAG implementation using a SPI interface

Started by Christoph Schnyder in comp.arch.embedded19 years ago 5 replies

Hello all I would like to do a ICP (in-circuit programming) of a PLD which features a JTAG interface. My host controller is a 16 Bit C-167...

Hello all I would like to do a ICP (in-circuit programming) of a PLD which features a JTAG interface. My host controller is a 16 Bit C-167 which has a SPI interface. Instead implementing a bit-banging routine using 4 general pupose I/Os I prefer using the SPI interface, if possible. Does anybody know any considerations I have to care about, or has anybody already experience with implem...


MSP430 JTAG over USB for Linux?

Started by Michael N. Moran in comp.arch.embedded17 years ago 5 replies

I recently acquired a new laptop, which (of course) has no parallel port. I've been looking into MSP430F169 board from Olimex to use in a...

I recently acquired a new laptop, which (of course) has no parallel port. I've been looking into MSP430F169 board from Olimex to use in a prototyping/testing situation for an FPGA. I'm impressed with the MSP430 line, but I'd like to be able to do the device programming and debugging from my usual Linux development environment. Both TI and Olimex make USB-> JTAG programmers/debuggers


USB JTAG simultaneously

Started by ksas...@gmail.com in comp.arch.embedded17 years ago 1 reply

Hello, I am working on a project using the i.MX21 processor having the ARM926EJ-S core. The processor contains the USB controller on chip....

Hello, I am working on a project using the i.MX21 processor having the ARM926EJ-S core. The processor contains the USB controller on chip. The board also has a JTAG interface for debugging. My current problem is that, I need to write a small basic driver to check if the USB sub-system is working on my hardware. Now need to use two USB ports of my development station (Windows PC) ...


avr butterfly and jtag

Started by Mark Andrew in comp.arch.embedded20 years ago 2 replies

I have bought an AVR Butterfly as my first step in exploring the wonderful world of microcontrollers, and have worked out how to compile and...

I have bought an AVR Butterfly as my first step in exploring the wonderful world of microcontrollers, and have worked out how to compile and load programs into it using WinAVR, AVR Studio and the RS232 connection. And all for ? 30! Now I want to try my hand at on board debugging. Do I just buy the JTAG dongle for ? 45 and talk through it to the Butterfly with AVR Studio? I can hardly bel...


Locating ARM jtag port

Started by Christian Schleiffer in comp.arch.embedded18 years ago 24 replies

Hi there, I have an embedded board with an ARM processor on it. There are also about 150 "test points" on the board. Does anybody have an idea...

Hi there, I have an embedded board with an ARM processor on it. There are also about 150 "test points" on the board. Does anybody have an idea how I can locate the JTAG port within all these test points? I would like to attach a debugger; and before you ask: no, I don't have any documentation... it's reverse engineering ;-) Thanks in advance /Chris


Learning about uCs (ARM7)

Started by Anonymous in comp.arch.embedded19 years ago 1 reply

Hi, I am looking to start learning about ARM uc. I have chosen as a developer platform this...

Hi, I am looking to start learning about ARM uc. I have chosen as a developer platform this board. http://embedinfo.com/English/Product/ax4510.asp The board has a flash loader software on CD and also a bootloader (w/o any Monitor, the bootloader is simple). The board has a 20 pin JTAG connector. Also, I would be using gnu tools. 1. Please suggest any JTAG ICE that is cheap and supp...


Freescale JTAG extensions for COP

Started by oliver.gold in comp.arch.embedded19 years ago 2 replies

Hi Can anyone tell me how to get hold of the details of the JTAG COP (BDM interface for Freescale PowerPC CPUs (especially MPC824x series)? I...

Hi Can anyone tell me how to get hold of the details of the JTAG COP (BDM interface for Freescale PowerPC CPUs (especially MPC824x series)? I hav the pinouts and IEEE1149.1 compliant stuff but I want to find out how t use the software debug functions. Same question for the IBM PowerPC range too ..... thx og -> This message was sent using the web interface o www.EmbeddedRelate


Macraigor on xp: download problem

Started by jerome in comp.arch.embedded19 years ago 3 replies

Hi, I am using Macraigor tools to try a download into a microcontroller board. I mean I am trying to!!! I type this command under cygwin,...

Hi, I am using Macraigor tools to try a download into a microcontroller board. I mean I am trying to!!! I type this command under cygwin, on XP home: OcdLibRemote -c ARM7 -d WIGGLER and I get the following message: JTAG SDO


Safety Critical ARM

Started by Tom Lucas in comp.arch.embedded17 years ago 13 replies

I'm currently looking at replacing the processor in a safety critical system from an 80188 to likely some form of ARM. I'd been told that...

I'm currently looking at replacing the processor in a safety critical system from an 80188 to likely some form of ARM. I'd been told that this might be tricky because approvals houses (mainly TUV and GasTec) like to step through the code on an in-circuit emulator rather than stepping through code on a JTAG emulator. This seems unlikely to me but could it be true? Surely the JTAG method ...


AVARICE under windows 2000 question.

Started by CW Thomas in comp.arch.embedded19 years ago 1 reply

Thanks for reading this; I'm using Averice 2.3 under win 2000 pro. I attempting to invoke it with the following : avarice --program...

Thanks for reading this; I'm using Averice 2.3 under win 2000 pro. I attempting to invoke it with the following : avarice --program --file demo.bin --part atmega128 --jtag /dev/ttyS0 :4242 IT sees the JTAG pod but I get the following error: tcp protocol unknown (oops?). I've tried different port settings, tried adding localhost:4242 etc to no avail. Does anybody have any ideas?...


Inexpensive ARM JTAG Programmers

Started by Tim Wescott in comp.arch.embedded13 years ago 13 replies

I'm looking for an inexpensive ARM JTAG programmer, to hand off to a customer to program flash on an LM3S2533. Currently I'm using my TI...

I'm looking for an inexpensive ARM JTAG programmer, to hand off to a customer to program flash on an LM3S2533. Currently I'm using my TI LM3S811 evaluation board, but that ties up a whole board when I want to just have a programmer, it's a bare board which doesn't look "pro", and I don't want to give it away at any rate. I'm looking at the Olimex programmer, available from SparkFun: h...


How to detect JTAG is connected or not

Started by dspwhiz in comp.arch.embedded18 years ago 10 replies

How to detect from the CPU wheather JTAG Is connected or not Thanks SM

How to detect from the CPU wheather JTAG Is connected or not Thanks SM


cortex programming in production

Started by coli...@yahoo.com in comp.arch.embedded16 years ago 4 replies

Hi! Does anyone know of a tool that will generate svf files (or something simillar) for ARM cortex based micro's. I've actually got an STM32...

Hi! Does anyone know of a tool that will generate svf files (or something simillar) for ARM cortex based micro's. I've actually got an STM32 but which flavour of cortex shouldn't matter. This is the means by which a production JTAG interconnection tester (JTAG technologies in this instance) programs CPLDs, micro's or other simillar stuff. At the moment we are just using an open source co...


Good Infineon XC16X JTAG debugger?

Started by Anonymous in comp.arch.embedded19 years ago 5 replies

For an existing motor control application, we're considering upgrading from our current ROMless ST10R167 processor to newer one with...

For an existing motor control application, we're considering upgrading from our current ROMless ST10R167 processor to newer one with onboard flash to get faster execution. One of the main attractions of the Infineon XC16X chips is JTAG debugging, with excellent code and onboard peripheral compatibility with the C167/ST10. (Using a bond-out emulator isn't practical with our equipment.) We use ...


Searching for 20 pin to 14 pin JTAG adapters.

Started by Roberto Waltman in comp.arch.embedded12 years ago 8 replies

Searching for a JTAG adapter to use a Segger J-Link (20 pin connector) on a Pandaboard (14 pin "TI" connector.) Found a few, from ~$70 to...

Searching for a JTAG adapter to use a Segger J-Link (20 pin connector) on a Pandaboard (14 pin "TI" connector.) Found a few, from ~$70 to $100 or more, for what is basically two connectors soldered back-to-back. Would appreciate any pointers to something more sensibly priced. (While getting ready to make my own.) -- Roberto Waltman [ Please reply to the group, return address ...


Installing a JTAG interface under Ubuntu

Started by Bruce Varley in comp.arch.embedded11 years ago 5 replies

I'm about 1/5 in terms of being a Linux guru, trying to install a Segger JTAG interface on an x86 machine running Ubuntu 12.04LTS. The very...

I'm about 1/5 in terms of being a Linux guru, trying to install a Segger JTAG interface on an x86 machine running Ubuntu 12.04LTS. The very first step of the 'procedure in README.txt document from the download tarball has stopped me dead, the very first instruction is to enter apt-get -update on the command line. I entered: sudo apt-get -update , and get the following error:


Freescale 56F8322 (56800E) programming probs

Started by Jan Wagner in comp.arch.embedded19 years ago 2 replies

Hi, I'm using CodeWarrior for 56800/E Special Edition v7.2 and a parallel port JTAG command converter. For some reason, programming the...

Hi, I'm using CodeWarrior for 56800/E Special Edition v7.2 and a parallel port JTAG command converter. For some reason, programming the 56f8322 flash with CW does not work. With CCS server running, CW connects fine and without complaints over the JTAG adapter, and shows sensible hex/asm uploaded data for the compiled source, but a P mem dump returns 0xFFFF's and a P mem fill with e.g....


Use EzDSP board as emulator?

Started by Chris Carlen in comp.arch.embedded20 years ago 4 replies

Hi: I have recently begun using an EzDSP board from Spectrum Digital for the TMS320F2812. On the board is a FPGA implementing an embedded...

Hi: I have recently begun using an EzDSP board from Spectrum Digital for the TMS320F2812. On the board is a FPGA implementing an embedded JTAG emulation port, which talks to the PC via a parallel printer port. I am thinking it is possible to use this board as a JTAG emulator for a TMS320F2812 chip on *any* board, such as one I design myself. That way, I could have general purpose J...



Memfault Beyond the Launch