I found a workaround to debug Keil software with H-JTAG(free). How to configure KEIL(uVision3.51) with JTAG? In Keil, open ProjectOptions for targetDebugUse RDI interface DriverSettingsBrowser and search for Yr. H-JTAG.dll in approprite folder. With a cheap Olimex Wiggler it could work like a true debugger(tracing, stepping and so on). But watch out, unless You're a pro, practice a lot.
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I actually used the H-JTAG v. 9 and - beside that Segger couldn't either download or debug my code- I was able to download my code via the RS232 interface and later correct the code until it was errorfree and, again download the correct code. Don't fret, there's always a workaround cheap JTAG stuff Godd luck « Last Edit: July 02, 2009, 08:44:04 08:44 by robban » Logged. This is the question. In the ARM toolset there are: 1.
Display functions. SPI and I2C functions. CAN functions.
Elemental IO functions. Send profile data (??). If you are interested in more details what is available, on the NI site there is 374931b.pdf file 'Getting Started with the LabVIEW Embedded module for ARM. I'm quoting from this doc: 'New Memory Access VIs The Embedded Module for ARM Microcontrollers now includes a Memory Access palette, which includes the following VIs:. CCG Mem Peek 8. CCG Mem Peek 16. CCG Mem Peek 32.
CCG Mem Poke 8. CCG Mem Poke 16.
CCG Mem Poke 32 Use these VIs to read and write values to specific memory addresses.' Is it sufficient?
Segger J Flash Lite
Well what do you know. I also happen to have which is just a rebranded J-Link locked to only work with Atmel ARMs and functionally more restricted than J-Link EDU.
My SAM-ICE is also V8.0 and has been bought in 2012 so even older than my V8.0 EDU but amazingly it does work with Cortex-M7 from Atmel. The argument that J-Link EDU V8.0 hardware is incapable of supporting Cortex-M7 does not hold water. The answer to the topic question is 'Neither.
Go Segger-free and get something like Black Magic Probe. If you use mostly the same supplier get their own debugger. Quote Licensor grants Licensee a non-exclusive and non-transferable License to use the software or parts thereof with SEGGERs J-Link hardware or authorized OEM products (Atmel SAM-ICE, Analog Devices mIDAS-Link, IAR J-Link, IAR J-Link KS) only. The use of the licensed software to operate J-Link clones is prohibited and illegal; The use of illegal J-Link clones with this software is a violation of US, European and other international laws reg. Copyright and IP rights and is prohibited. Any other use of the software package is prohibited without prior written authorization from SEGGER.
I personally tried to be reasonable - it's not hard. If I remember correctly you can't use EDU for commercial projects anywhere and you can't use it for any purpose on commercial property (in the office.) So I used it at home for playing with some open-ended prototypes I have made at work for the purpose of learning specific toolchain and silicon brand. I think it falls under educational use and I stuck to my side of the bargain. On the other hand the fact that they stopped support after 1 year from the moment I bought it from official dealer has crossed them out from my list of reputable companies. It does not really matter if the reason is counterfitting, bored developer in a cubicle or a new suit in marketing. SWD is consistent across all Cortex-Ms and V8 hardware is fully capable of supporting M7s as identical hardware (SAM-ICE) proves.
We are not talking about ETM trace with live execution trace where you need speed and storage. SWD, SWO, JTAG is just pin toggling at few MHz rate. Wise man said 'one chip - one debugger.' The last thing I expected is being unable to program a new Cortex-M prototype I built. 'I have a genuine Segger and I used it before' - I thought. When I bought it I remember looking at gazillions of parts it can support and thinking 'this is for life!'
In fact it has only seen three chips from two manufacturers in its short life. Now what do you think will happen with lovely genuine EDU when you start seeing V9.3 EDU on Alibaba for £15 and free delivery?
Protected FLASH Pages with Processor Expert Failed Programming with protected FLASH If I try to re-program the protected bootloader with Segger J-Link (both in CodeWarrior and Eclipse/KDS with GDB), then the download silently fails. The effect is that somehow the application on the board does not match what it should be. Looking at the Console view, it shows that erase has failed (but no real error reported):-(: Jlink: Failed to erase sectors 0 @ address 0x00000000 (Algo135: Flash protection violation. Flash is write-protected.). ERROR Algo135 Flash Protection Violation about failed FLASH Programming What I need is to unprotect the memory and then erase it. Erasing The Segger J-Link features a very fast programming.
Part of that speed is that the Segger firmware checks each FLASH page if it really needs to be programmed, and only then it erases and reprogrammed that page. So downloading twice the same application actually will not touch the FLASH memory at all.
Additionally, it does not do a complete erase of the device: it only programs the pages I’m using in my application. The advantage of that is first speed.
And it does not erase the application data I’m using in non-volatile memory (see ““). However, sometimes I really need to clear all my data in FLASH too, and then I need to erase all my FLASH pages on the device. Segger has product named ‘J-Flash’ which is used to Flash and Erase devices outside of an IDE. There is a free-of-charge ‘Lite’ version available for download from Segger. This utility is not intended to be used for production. With this utility I have a GUI to erase and program my device.
Erasing Device with Flash File to Target Again, this does not work if the device is locked. CodeWarrior has another feature called ‘Target Task’ which can be used to erase/unsecure (if your device is supported), see ““. So I need to use a different tool to unlock and unprotect my device: the J-Link Commander. Unlocking and Erasing with J-Link Commander To unlock the device, Segger has a utility named ‘J-Link Commander’, available from. The binary is ‘jlink.exe’ on Windows and is a command line utility.
To unlock the device use unlock Kinetis. Unlocking and Erasing with J-Link Commander Summary In order to re-program the protected FLASH sectors with Segger J-Link, I need first to unlock and mass erase the device. For this, there is the J-Link Commander utility which has a command line interface to unprotect and erase the device. For erasing only, the J-Flash (and Lite) is a very useful tool, especially to get a ‘clean’ device memory. To me, the Segger way and tools are very powerful. In this case, things are very flexible, but not that obvious.
So I hope this post can help others to get his device unlocked and erased. Happy Erasing ?. Hi Erich, I am trying to use similar procedure as yours to “erase my secure Kinetis KV31 device”, I use J-link utility – unfortunately I can’t erase it due to device is secured.
J-Linkunlock Kinetis Found SWD-DP with ID 0x2BA01477 Unlocking deviceO.K. J-Linkerase Erasing device (MKV31F512xxx12). Error: Failed to erase sectors 8 @ address 0x00004000 (Algo135: Flash pro tection violation. Flash is write-protected.) Info: J-Link: Flash download: Total time needed: 1.155s (Prepare: 0.689s, Compar e: 0.000s, Erase: 0.067s, Program: 0.000s, Verify: 0.000s, Restore: 0.398s) ERROR: Erase returned with error code -5. J-Link Is there a way to unlock secured device and erase it?
I am OK with deleting my flash I just want to reprogram device again. Thanks for you advice.
HI Erich I Had the “Device is secured” problem on 2 of 5 MKV31F devices. Using universal multilink i had no way to unlock it,and the odd thing is that one of the devices was new,so i was not able to flash it for the very first time.The project that i tred to load was working fine with other boards let’s call it “Aproject”. I built an almost empty project,let’s call it “Dummy” and i have found a difference in Hex files: In Aproject the byte ad address 0x40C=0x7E and in “Dummy” 0x40C=0xFE.,at least the SEC bits were Unsecured,i will check why i haveKEYEN Field= Backdoor key access disabled Furthermore the reset pin toggles continously(it has 10K to VDD,100nF to GND).
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I dont ‘have a Segger J-Link,but almost for shure i should have some demo board with a JLink on board. Do you think i can do something? This is a 100 pins IC,and i ‘m am scared that after changed it by hand,i could face the same problem. Many thanks once more. Hi Diego, yes, using a J-Link might work for you. The ‘real’ J-Links have stronger pull down circuit I think so would be better. But give it a try.
Ultimately, I always have J-Link at hand for these kind of things. The reason why you see the reset pin toggling is that the device is continuously resetting: it starts, then runs into a hard fault, restarts again, etc. You might try as well to pull down (e.g. Push button) the reset line while you connect to the target. This would give the debug probe a chance or larger time window to connect to the microcontroller and halt it. You migt try this several times.
I hope this helps, and good luck! No, there is no utility for this as far as I know. So in your case the reset pin is still active after power-up until it reads the FOPT register. With JTAG you can reset the device using the JTAG command.
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So if you are using JTAG, you should be able to connect. If you only have SWD, then you need to be able to connect with the debugger during this tiny window. So I would try to debug it while the microcontroller is powered up. You might need 10, 50, 100 or more tries, but I think this is what you can do. The other way is that you add a button to the reset pin and pull it to GND.
Give it a try. Dear Erich, regarding your post I’m having a similar problem with internal KE02 EEPROM.
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Free Software Updates. SEGGER Microcontroller today announced the free availability of the flash download option for J-Link. The feature is free with J-Link software version 4.08l, available now.
The flash download option is a collection of optimized flash loaders allowing the user to easily and very quickly download into flash of the supported microcontroller directly from the debugger in the same way as downloading to RAM. Taking full advantage of J-Link’s high download speeds up to 720kB/s into RAM, it allows programming the flash of most common microcontroller very quickly.
Flash sectors which already contain the correct data do not have to be reprogrammed; a fast 32-bit CRC algorithm can be used for verification, making the flash download process feel as fast as a download to RAM. “We have the fastest flash loader on the market. Adding this option for free adds significant value to our J-Link”, says Dirk Akemann, marketing manager at SEGGER. Furthermore SEGGER restructures their J-Link-bundle-offerings adding the new “J-Link ARM Pro bundle” to its portfolio.
The bundle includes a J-Link ARM with licenses for RDI/GDB-server, FlashBP (unlimited breakpoints in flash memory) and J-Flash at a reasonable price of 698,- Euro. Full product specifications are available at: The J-Link-Software is available.