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Hi, please get in touch with support via mail if you want to have the schematics, I can not decide to provide it to externals. However I just took a look at the schematics and found the following note: Quote: “JTAG not usable without NRST pin (comp. errata ES0182). Use SWD.” Best regards, Niklas

Hi Ghislaine, Quote: “Could you give me the solution to return to previous version?” How to downdate the firmware is described in UM8001: forum.segger.com/index.php/Att…bba5b601892b48d2c4e1a4eb4 Please let me know if this solves your issue. Best regards, Niklas

Hi, could you please change the speed to 2000 in the script file, power cycle the J-Link, and try again? I could reproduce issues when trying to connect to a EFM32GG395F1024 device with to high speeds. Best regards, Niklas

Hi, glad to hear that I could help. Please do no hesitate to ask if there are any further questions. Best regards, Niklas

Hi, the "Manual for Flasher ASCII command Interface" refers to " Flasher 4, Flasher 4R1, Flasher 5 and Flasher ST7", in contrast to the "Flasher User Guide (UM08022)" which refers to Flasher ARM / PRO. Best regards, Niklas

Hi, could you please provide us with a script file for reproduction purposes? I will then give it a try here. Best regards, Niklas

Hi, does this occur when the breakpoint is set or when the application stops at the breakpoint? Best regards, Niklas

Hi, let me summarize: The J-Link is connected via Ethernet to a network (and via USB for power). The PC is connected to the same network, with some switches in between, but no routers. This setup should work. We have many customers using J-Link PRO via Ethernet, some are using a 3-digit amount of J-Links. Therefore we should be able to get you up and running :). Quote: “I can connect to it using my browser - port 80 - and I can check it settings, network status, etc.. power on, off target voltag…

Hi Smita, Quote: “ it seems like the application running on the board disables DBGEN. E.g some Linux distributions do this per default. Could you please consult the reference documentation of the AM3352 regarding how DBGEN is set / cleared and check if it is influenced by the application? ” Quote: “I am trying to debug Hello world code” Would it be possible for you to provide us with a binary with debug symbols (.elf file) + source which can be used to reproduce this issue? We have a SAMA5D2 XPl…

Hi Darren, could you tell me more about your setup / use case? #0 and #1 belong to the older enumeration scheme. The recommend way is the specify a S/N if you want to connect to a specific J-Link. All applications of the J-Link software package have a command line option for this, and it should be possible to specify the S/N in the project settings of almost any IDE somehow. Best regards, Niklas

Hi, thanks for providing access to the board. You can close the tunnel session. We do not get a valid ID (communication error) from the QSPI flash, although it works on the Zedboard which features the same MCU and connects the QSPI flash to the same pins. We assume that the board is unaltered and that Xilinx does not ship $900 boards w/o QA. Therefore, I assume it is more generic issue on our side which occurs on this board. I requested the eval board from our management. Unfortunately, this mig…

Hi, cannot say much with knowing the Serial number / hardware version. May I ask why do you want to use a IAR J-Link instead of a normal J-Link? Best regards, Niklas

Hi, thanks for updating the thread! Good to hear that you could confirm the cause of this issue. Best regards, Niklas

Hi, I just gave it a try and could not reproduce the issue: Source Code (47 lines) Are you using an evaluation board or custom hardware? Is it possible that the EFR32MG1PxxxF256 device has been locked permanently ? Best regards, Niklas

Hi, good to hear that you are up and running again. Which version of macOS are you using? Was a hypervisor (e.g. Parallels, VMWare, VirtualBox) running at the time of the update? After a firmware update, J-Link re-enumerates as a USB device. If a guest OS grabs the "new USB device", the J-Link Commander session in macOS will get confused. Best regards, Niklas

Hi, an alternative to setting it up via the company network would be to connect J-Link to a a laptop which is not connected to the company network, but instead connected directly or via a mobile phone to a 3G or LTE Network. Unfortunately, a teamviewer session does not help, since I need to work with a debug version of our software, which I cannot run on your computer. Best regards, Niklas

Hi John, could you please provide us with a screenshot of the error? Quote: “I'm not seeing it all the time” Could you estimate how often? 1 out of 5, 10, 20, 100, ... Best regards, Niklas

Hi, Quote: “It works in JLinkExe (e.g. for flashing a new image) when holding the reset button, indeed.” This means it should be possible for us the implement a connect under reset for BlueNRG1. I will bring this up for discussion at the next team meeting. Quote: “So, I should make sure my application does not go to sleep too soon, such that I can halt and debug in time, after resetting or powering on the device? ” Yes, this a) is a good ("best") practice in general, since it makes sure you have…

Hi, you are changing the options bytes via the exit steps, not via the data file. Therefore, could you please change the selected device from "ST STM32L071RZ (allow opt. bytes)" to "ST STM32L071RZ"? Does this work for you? Best regards, Niklas

Hi, Quote: “However, it should be possible to correctly reset and halt the device, which should allow me to re-flash the device, or step from main() again, ... Or is this a wrong assumption? This works with all other Cortex-M devices I work on... ” This depends on the target device -> Reset & halt via SFR access might be not available when target device is in low power mode -> Reset & halt via Reset pin + SFR can work but only if the application does not enter a low power mode before the halt re…