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Questions tagged [j-link]

For questions related to the Segger J-Link series of JTAG programmer / debuggers.

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3 answers
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Microcontroller not working

I have designed and assembled a custom PCB that features the STM32F401RDT6 microcontroller. But unfortunately, I was unsuccessful in connecting to it via SWD to program it. I have tried the J-link EDU ...
TheButterMineCutter's user avatar
1 vote
0 answers
30 views

ERF32 programming with SWD

I need some help with programming board with EFR32FG22 (Datasheet). I've always used arduinos or esp32/8266, so I'm new to this type of MCU's. I know that I should use SWD pins (SWDIO and SWCLK) which ...
jasiekk's user avatar
  • 11
0 votes
0 answers
31 views

TI DM368 access via JTAG with openocd or jlink commander

I have a board with a TI DaVinci TMS320DM368 processor. It users a NAND to boot from for its Linux operating system. The bootloader in the NAND appears to have become corrupt and can no longer boot. ...
bozmanx's user avatar
0 votes
2 answers
790 views

Confusion over J-Link pinout

I have a SEGGER J-Link V9: I have some confusion over two things: Do all J-Links have the same pinout? I can find different pinout diagrams online. Isn't pin 1 ...
K.Mulier's user avatar
  • 2,369
2 votes
1 answer
90 views

Added value of debugging probes (ST-LINK, JLink, ...)

I've been working in embedded programming for a few years now, and there is something I still don't quite understand about debugging protocols and probes. So as I understand it, to program and debug ...
sydpy's user avatar
  • 21
2 votes
2 answers
404 views

Run a RAM app via JLink

I need to run a RAM app on an imx rt 1024, through JLink. What works I have a simple SDK example (blink) which is compiled to SRAM (0x20000000 on the imx rt). When I launch that project from the IDE, ...
bas's user avatar
  • 581
2 votes
4 answers
937 views

Segger J-tag vs J-link

Are Segger J-tag and J-link the same thing or are these two different things? I could not find helpful answers yet.
naveed's user avatar
  • 21
0 votes
0 answers
158 views

STM32 M4 not running after J-Link and J-Flash

I'm temporarily using a J-Link Pro as a production programmer for a STM32L4R9. I've modified the scripts found here https://wiki.segger.com/ST_STM32 to unlock, then lock and set the option bits for ...
Erik Friesen's user avatar
  • 1,963
0 votes
1 answer
1k views

STM32 CubeIDE Could not connect to target problem

I'm trying to code the stm32g030f6p6 microprocessor using J-link using STM32 CubeIDE, I get the warning "Could not connect to target, Please check power, connection, and settings". When I ...
buccno's user avatar
  • 23
1 vote
1 answer
2k views

"Could Not Verify ST Device" when flashing STM32H747XIH6 over SEGGER J-link within STM32CubeIDE

Im trying to flash/debug a STM32H747XIH6 over J-link within STM32CubeIDE. One of the two cores, the CM7, flashes fine and i can enter the debugger. However when i try to flash the other core, the CM4, ...
Caspar Westerberg's user avatar
0 votes
0 answers
1k views

Why can't I connect to the STM32F103C8 with j-link using swd?

I am learning to work with stm32. I have a stm32 "bluepill" for that. I have done a couple of simple projects with it. But now I have a problem, I can't figure out what I'm doing wrong. I ...
Kaper Di's user avatar
0 votes
0 answers
313 views

Flashing PCA10040 NRF52 using J-link and Segger Embedded Studio

I encountered a problem while trying to flash my PCA10040 nrf52 development kit. I am able to compile my code in Segger Embedded Studio without a problem. The chip has 512kB of flash and 24kB which ...
DRF's user avatar
  • 536
1 vote
1 answer
319 views

STM32F407VG Discovery Board, on board ST Link not recognized, but the pc recognized J Link is connected [closed]

So I have a STM32F407VG Discovery Board, the board has ST Link. But when I connect the usb to my pc, the ide that I used does not recognized it. I used atollic and stm32cube ide. But when I check my ...
LazyEmperor's user avatar
0 votes
0 answers
883 views

How to flash a Zephyr RTOS sample project to the nrf52840 dongle using J-Link Base debugger and SWD

I'm a beginner at this, I'm a software developer so I've never worked with hardware but now I need to and I don't seem to be able to make it work. I would need help as to how can I flash a Zephyr RTOS ...
Jimmy's user avatar
  • 1
0 votes
0 answers
77 views

How to connect J-link OB to an RF transceiver module?

I'm looking to program the RFM380F32 RF transceiver module which includes an ARM Cortex-M0+ processor: http://www.hoperf.cn/modules/soc/RFM380F32.html The documentation suggests programming in Keil ...
StarDust's user avatar
3 votes
1 answer
812 views

Possible to use Segger J-Link with Intel Quartus to flash FPGA?

Does anybody know if it's possible to use a Segger J-Link with Intel Quartus to flash an FPGA?
SofaKng's user avatar
  • 481
1 vote
2 answers
2k views

Programming a Microcontroller - JTAG and SWD

I have this Microcontroller - S32K118 64 pins. I want to load my software datafile into the microcontroller using the debugger mentioned below. I am using this J-LINK Segger BASE debugger model to ...
user avatar
1 vote
1 answer
935 views

JTAG Voltage compatibility

I am having this microcontroller - S32K142 64 pins 5V core voltage. I am using the this J LINK 20 pin JTAG Debugger. Using JLINK Flash Lite software tool in Windows PC to program the microcontroller ...
user avatar
4 votes
1 answer
4k views

USB-C Debug Accessory Mode and USB 2.0

I want to build an embedded device which is using a USB-C for debugging purposes and USB 2 functionality. Now I am not sure whether or not I understood the USB-C Standard correctly. Is it correct, ...
NIN's user avatar
  • 43
0 votes
1 answer
463 views

Flashing firmware onto NXP QN9020 via SEGGER J-Link

Here I am attempting to flash the firmware using SEGGER J-Flash Lite. Below is the ouput when attempting to connect via the SEGGER J-Link Commander. ...
oxr463's user avatar
  • 111
1 vote
1 answer
701 views

Flash and debug of multiple STM32 in JTAG with J-LINK [closed]

I have a board where 3 STM32 are connected to a JTAG port. The 3 STM32 are daisy chained. I am using a JLINK EDU Mini with Atollic TrueStudio IDE. One STM32F746 is a master for the two slaves ...
tponc's user avatar
  • 127
4 votes
3 answers
4k views

SAMD21 - How do I write to NVM fuses?

I'm trying to program the ATSAMD21G18 on Adafruit Feather M0 and over SWD Using a Segger J-Link EDU Nano. When I try to download the program to the chip through Atmel Studio it fails verification at ...
chamod's user avatar
  • 526
2 votes
1 answer
2k views

Can I leave SWO/TDO and TDI of J-Link floating?

I'm designing a board with cortex-m4f having only SWDIO and SWCLK. I'm drawing schematics for J-Link's 9-pin JTAG/SWD connector, and I wonder if I can leave the SWO/TDO and TDI pins floating. J-Link'...
Inbae Jeong's user avatar
1 vote
1 answer
531 views

Segger J-Link Supply Adapter

I have a microcontroller powered at 1.8V and I break out V_target, SWD, SWCLK, ...
tarabyte's user avatar
  • 3,162
1 vote
1 answer
124 views

sama5 clock and debug issue

I have designed a board that uses the ATSAMA5D225C-D1M (Cortex A5). I have mostly copied the schematic from the ATSAMA5D27-SOM1. I am using a J-LINK PRO adapter. I am using the atmel software ...
Erik Friesen's user avatar
  • 1,963
0 votes
1 answer
394 views

GNU MCU Eclipse trouble flashing/debugging code to xmc4800 with JLink

I'm trying to make GNU MCU Eclipse work with my XMC4800 Relax kit. Eclipse compiles the program fine. But when I try to flash or debug the code JLink seems to hang on ...
Quint van Dijk's user avatar
1 vote
1 answer
1k views

Debugging iMX6 bare-metal with Segger JLink

I'm attempting to debug a bare-metal application on iMX6UL with Segger JLink Pro. I seem to be able to connect and download the application properly: ...
bjornruffians's user avatar
0 votes
1 answer
6k views

Converting ST link v2 to Jlink [closed]

Has anyone had any succes with converting a ST link v2 to a Jlink using the software that Segger provides? I have not had any success, even with using instructions they provided and was wondering if ...
Ashish Mistry's user avatar
-3 votes
1 answer
4k views

DIY a j-link debugger

I want to replicate THIS jlink debugger according to my own needs. But I can't find it's schematics and firmware anywhere. Is illegal to replicate it or distribute it's source? If no, then where can'...
Suraj Bhawal's user avatar
2 votes
1 answer
740 views

segger j-link not connect to STM32F030F4P6

I use segger j-link v8, I believe programmer is true,because I could programmer stm32vldiscovery board with stm32f100rb cpu (by this help) but when I try to connct STM32F030F4P6(TSSOP20) ,it fails.. ...
peyman khalili's user avatar
0 votes
0 answers
101 views

Jlink Commander doesn't find LPC4088 microcontroller on my homemade PCB

I just finished a homemade PCB with a LPC4088 microcontroller and some other components. When I connected my board to the J-link EDU probe over JTAG connector and start Jlink Commander, Cortex-M4 ...
71GA's user avatar
  • 623
1 vote
0 answers
849 views

J-Link device selection error in Keil

I try to load a program into STM32L011K4 using J-Link. The mistakes I get and the steps I follow are as follows: PROBLEM-1. J-link could not find STM32L011K4 My Steps: Click options for Target → ...
Purgoufr's user avatar
  • 251
2 votes
1 answer
4k views

Unable to enter in Programming mode (AT_Studio)

I've a board with the SAML21E17B uC, when I want to connect/ program it using JLink(edu) and Atmel Studio I get and error message, that the IDE is unable to enter the programming mode any idea what'...
Engine's user avatar
  • 669
0 votes
2 answers
356 views

Is there a good solution to connect Segger J-Link to a solderless breadboard?

I am working on a project where I created different prototypes on different solderless breadboards. To program and debug the used MCU using SWD, I just use male jumper wires, from the j-link connector ...
Flovdis's user avatar
  • 581
1 vote
2 answers
1k views

STM32F0 discovery serial

Is there a way to use the TX/RX on the STM32F030 Discovery board? The User's manual says "reserved", but since the Cortex M0 doesn't have an ITM, I'm looking for another way to get data out of this ...
Thor Johnson's user avatar
-1 votes
1 answer
158 views

Are there universal ICE tool?

I used to work in team that develop product based on ARM v7 MCU but used to be application programmer. Now I deep into electronics with PIC/AVR/ARM boards as hobbyist. We used Segger J-Link ...
gavenkoa's user avatar
  • 395
2 votes
1 answer
2k views

J-link CDC serial port driver problem

I have an on board J-link debugger on my Infineon Relax kit. I'm trying to use my J-link as a serial interface to my PC. It requires CDC serial port driver and I have installed it. Problem is that, I'...
Saqib Ahmed's user avatar
12 votes
5 answers
9k views

Freescale Kinetis KE - writing to flash

I've been using various microcontrollers and microprocessors for many, many years now but I seem to be stymied by the Kinetis KE series (specifically the S9KEAZN64AMLC). Jan 17, 2015 TL;DR: ...
akohlsmith's user avatar
  • 11.4k
3 votes
2 answers
2k views

Why doesn't my program execute (work)?

I have bought this board for working on Cortex-M0 series microcontrollers. its MCU is STM32F030F4P6. this is the board: and its schematic: I used STM32CubeMX for configure the MCU and then used MDK-...
Roh's user avatar
  • 4,650