Nucleo-H753ZI connection error

[DeMar]

I am a beginner at stm32 Nucleo board, when I connect the board and the Lap, LD5 turns green but LD4 turns to green/red blinking, which means the voltage is correct but the MCU has no response or connection error. Could you please help with that?

[Pavel A.]

Green/red blinking by itself does not mean trouble. It just indicates activity. Where do you see "no response" or any error? CubeIDE or Programmer?

[DeMar]

I used stm32programmer to connect the board, and the LD4 keep blinking red/green which means lap and board are unable to exchange data. And on IDE it shows "No st-link detected". Sorry if I misunderstood anything, I'm just a beginner.

[Pavel A.]

@DeMar So the situation is that CubeProgrammer sees the ST-Link - but the IDE does not. The board is Nucleo, so "fake ST-Links" are excluded. May be, a bad cable or a driver issue caused by 3rd party software.

 

[Tesla DeLorean]

Perhaps try strapping BT0 (BOOT0) pin to VDD, and power cycle a couple of times. See if you can connect then.

Check the SMPS/LDO and VOS settings in your code.

[DeMar]

OK I will try! Thanks!

But I haven't written any code yet, I was trying to connect them.

[QSHAO.1]

About LD4 on Nucleo-H753ZI, it's called "ST-LINK COM LED". you may find details information about this LED function in TN1235.

Attached below also a capture of key information. thanks!