ST-Link/V2 no connecing but with JLinkPro no problem

[Roger Heil]

Posted on January 13, 2017 at 12:49

Hi,

I have a problem with the ST-Link / V2. I have designed my own board and if I want to access the STM32L476RG via JTAG, the ST-Link Utility write the following lines into the Trace.txt file:

ST-Link/V2 device detected

Target voltage detected: 3.508662

Error (0x8) after target cmd F2 30 A4 00 00 00 00 00 00 00

Error (19) while initializing ST-Link in JTAG mode

If I use a Segger JLink Pro, I can flash and debug the MCU without any problems.

Can anyone explain this?

best regards

Roger

#jlink #st-link/v2

Note: this post was migrated and contained many threaded conversations, some content may be missing.

[Nesrine M_O]

Posted on January 13, 2017 at 14:40

Hi

Heil.R

‌,

Could you please precise the ST-LINK and the ST-LINK Utility

version are you using?

Is this behavior observed also when

connecting via SWD?

-Nesrine-

[Roger Heil]

Posted on January 16, 2017 at 08:56

The original post was too long to process during our migration. Please click on the provided URL to read the original post. https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I6rG&d=%2Fa%2F0X0000000bwp%2FJ9ZkO3jCBCf8y5gvVBmC7yf1LRBOTmGhKNsCSQo_SWY&asPdf=false

[Nesrine M_O]

Posted on January 16, 2017 at 10:12

Hi

Heil.R

‌,

Try to upgrade firmware version:

STM32 ST-Link Utility>ST-Link>Firmware update

-Nesrine-