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STM32CubeProgrammer cannot connect to board using ST-LINK V3

SedCore
Associate III

‎2024-09-26 8:10 AM - edited ‎2024-09-26 8:25 AM

Hi, I get the below error when trying to connect to my B-U585I-IOT02A board in "Hot plug" and "Hardware reset" modes, whatever is the frequency. I get the same error even with BOOT0 High.

I'm using STM32Cube Programmer v2.17.0

SedCore_0-1727362562478.png
Connection is successful only when I keep on pressing the reset button, but there is no option byte set and any attempt to set option bytes fails.

Thanks in advance for your support.

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24 REPLIES 24
AScha.3
Chief III
In response to SedCore

‎2024-09-27 1:05 PM

But you disabled the st-link, as written ?  ....otherwise its doing nothing on terminal.

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SedCore
Associate III
In response to AScha.3

‎2024-09-27 1:44 PM - edited ‎2024-09-27 1:52 PM

I'm not sure of having done so. As I mentioned earlier, I just ran the regression.sh script from the TF-M application in the STM32U5 v1.4.0 firmware. Below is the log that I got on the terminal when I ran that script, I don't know if this disabled the ST-Link:

 

regression script started
Regression to RDP 0, enable tz
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.17.0
      -------------------------------------------------------------------

ST-LINK SN  : 003B00243232510239353236
ST-LINK FW  : V3J15M6
Board       : B-U585I-IOT02A
Voltage     : 3.30V
SWD freq    : 8000 KHz
Connect mode: Hot Plug
Reset mode  : Software reset
Device ID   : 0x482
Revision ID : Rev X
Device name : STM32U575/STM32U585
Flash size  : 2 MBytes (default)
Device type : MCU
Device CPU  : Cortex-M33
BL Version  : 0x0
Debug in Low Power mode enabled


UPLOADING OPTION BYTES DATA ...

  Bank          : 0x00
  Address       : 0x40022040
  Size          : 36 Bytes

â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’ 100%â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’ 100%

  Bank          : 0x01
  Address       : 0x40022068
  Size          : 8 Bytes


PROGRAMMING OPTION BYTES AREA ...
â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’â–’ 50%
  Bank          : 0x01
  Address       : 0x40022068
  Size          : 8 Bytes


  Bank          : 0x00
  Address       : 0x40022040
  Size          : 36 Bytes


Reconnecting...
Error: failed to reconnect after reset !
Error: Unable to reconnect after setting the Option Bytes
View more

 

I lost access to the board after running this.

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AScha.3
Chief III
In response to SedCore

‎2024-09-27 2:31 PM - edited ‎2024-09-27 2:51 PM

1. last successful action was : programming the option bytes. (probably wrong...RDP set to 1. )

2. disable the st-link, is needed to connect to terminal. YOU have to do it, -> read in um2851 ...complex game.

AScha3_0-1727472677075.png

AScha3_1-1727472778842.png

AScha3_2-1727472845104.png

AScha3_3-1727473878048.png

 

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SedCore
Associate III
In response to AScha.3

‎2024-09-30 3:41 AM - edited ‎2024-09-30 3:46 AM

Hello @AScha.3 

I also tried to do that step of disabling ST-Link, but without success. In fact, to disable ST-Link, "some information is displayed in the terminal emulator" as mentioned. There must be something on the terminal screen (I did a previous project using TF-M, so I know about this). But in my case now, nothing even appears on the terminal screen...

SedCore_0-1727693154728.png

 

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AScha.3
Chief III
In response to SedCore

‎2024-09-30 6:00 AM

Hi,

so maybe you try to get some help from STM:

stm support
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