[SOLVED] problem in using j-link edu for debugging the stm32f4 discovery board

piyushpandey · January 4, 2017 at 5:41 PM

dear segger team,

I bought one segger j-link edu from mouser electronics just couple of weeks back and trying to check it by connecting it to my discovery board.

I used the following link in order to interface the j-link with stm32f0 discovery board :

https://www.segger.com/downloads/appn…overyBoards.pdf

information on page 14 has been used and I made the connections accordingly, but its not able to program and debug my board.

also there is no 5 V output from pin 19 as checked from multimeter.

piyushpandey · January 5, 2017 at 6:07 AM

Please guys help me out with my jlink EDU

piyushpandey · January 5, 2017 at 8:03 AM

This time I used to program my STM32F0 Discovery Board with the Jlink Edu using the Keil IDE and simple blinky program.

but it outputs following message in the Build output window of Keil IDE:

JLink info:
------------
DLL: V4.96d, compiled Jan 29 2015 11:45:37
Firmware: J-Link V9 compiled Dec 16 2016 15:34:10
Hardware: V9.40
S/N : 269402212
OEM : SEGGER-EDU
Feature(s) : FlashBP, GDB

Error: Flash Download failed - Target DLL has been cancelled

SEGGER - Niklas · January 5, 2017 at 8:20 AM

Hi,

first of all,

Quote

DLL: V4.96d, compiled Jan 29 2015 11:45:37

could you please update to the most recent version of the J-Link software? https://www.segger.com/downloads/jlink

Quote

also there is no 5 V output from pin 19 as checked from multimeter.

This is the default behaviour (which is also explained in the manual UM8001):
Target power supply needs to be activated by using either the "power on" / "power on perm" or by changing the setting in the J-Link control panel.

Best regards,
Niklas

piyushpandey · January 5, 2017 at 9:51 AM

Quote from SEGGER - Niklas

could you please update to the most recent version of the J-Link software? https://www.segger.com/downloads/jlink

Hi nikalas ,

Can you please tell me how to update the jlink firmware of my jlink.

regards

Piyush Pandey

piyushpandey · January 5, 2017 at 10:03 AM

Hi niklas,

I updated the j-link software and tried again but the problem still exist.

Here I am attaching the screenshot of the Keil IDE.

My development Board is STM32F0 discovery Board.

http://www.st.com/en/evaluation-tools/stm32f0discovery.html

Here find the attached screenshots.

regards

Piyush Pandey

piyushpandey · January 5, 2017 at 10:05 AM

More attachment ......

Please tell me why its not able to program or debug my development Board.

regards

Piyush Pandey

SEGGER - Niklas · January 5, 2017 at 10:31 AM

Hi Piyush,

In order to narrow down the list of possible causes of this issue:
Could you please give J-Link Commander a try?
J-Link commander is part of the J-Link software package, which is available free of charge here, which you just installed.

Start J-Link Commander (jlink.exe)
Type "connect" in order to start a debug session
Type in the target device name if asked (Or type "?" for a target selection Dialog)
Choose the correct target interface (JTAG/SWD/etc..)
Use a valid speed (Default: 4000kHz, try 100-500 if default does not work)
[JTAG only]JTAG conf can be default(most of the times)
You should now be successfully connected.
It is now possible to program a binary file via the >loadfile< command
The commands >r<, >g<, >h<, >s< can be used for reset, go, halt and step.
Breakpoints can be set by using the >setbp< command.

If anything fails, could you please post a screenshot of the complete session?

Best regards,
Niklas

piyushpandey · January 5, 2017 at 11:00 AM

Dear Niklas,

Still its not programming and I am attaching the screenshots of experiments.

regards

Piyush Pandey

SEGGER - Niklas · January 5, 2017 at 11:08 AM

Hi Piyush,

The Output says VTREF = 0.000V.
How do you power the board? USB? Pin19?
As mentioned above, in order to provide power via Pin 19, you need to execute the command "power on [perm]" in J-Link Commander.

Best regards,
Niklas

piyushpandey · January 5, 2017 at 12:20 PM

Hi Niklas,

thanks for your support , I am now able to debug the STM32F0 Discovery Board.

After issuing the command power on to the jlink it delievers the power and the stm32f0 discovery board being powered by jlink now can program the stm32f0 discovery board alongwith the debugging of the same.

Also I noticed that the connections of the JTAG 20 pin connector is reversed , as I will check it again and due to which I think I was not getting the result. Therefore I used the separate jumper wires and did the connections as per the manual and now everything is working fine.

Thank you very much once again for your very kind support.

regards

Piyush Pandey

SEGGER - Niklas · January 5, 2017 at 2:06 PM

Hi Piyush,

good to hear that you are up and running!

Best regards,
Niklas

[SOLVED] problem in using j-link edu for debugging the stm32f4 discovery board

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