Invalid flash type, unknown memory region on STM32F779I

[alexmikhalevich]

• Programmer/board type: Stlink/v2-onboard
• Operating system: Linux 4.14.3
• Stlink tools version and/or git commit hash: v1.5.0
• Stlink commandline tool name: st-info, st-flash
• Target chip (and optional board): STM32F779I-EVAL

When I try to flash my STM32, I get this error:

$ st-flash --reset write intflash.bin 0x8000000
st-flash 1.5.0
2018-12-11T00:52:25 INFO common.c: Loading device parameters....
2018-12-11T00:52:25 WARN common.c: Invalid flash type, please check device declaration
Unknown memory region

It seems, that st-info utility is unable to detect my device:

$ st-info --chipid
0x0000

lsusb output (maybe it would be helpful):

$ lsusb
... 
Bus 001 Device 024: ID 0483:374b STMicroelectronics ST-LINK/V2.1
...

[nit1995]

How did you solve this issue?

[alexmikhalevich]

@nit1995, it was a problem with power supply. After I fixed my power adapter, all is ok.

[lucaspeixotot]

My problem is not related to power supply, someone knows how to solve this?

[ngoc-emg]

I have a same error. Did you have any solution for it? @lucaspeixotot

[skypodolsky]

The same problem for me.

[TomHyhlik]

Also stucked with the same problem.

[JasonShiao]

I have a similar problem in #107 .
I try to short the reset pin to GND and then this Unknown memory region error message is shown too.
I'm using Mac so I am not able to use ST-link Utility for Windows.
So far the only solution works for me is:

1. Short the reset pin to GND at first
2. Immediately unplug the reset pin and enter st-flash command simultaneously.
   The timing is critical and it may take several times to succeed.

[susundberg]

Confirm what @JasonShiao said -- i had similar trouble with STM32F103 "blue pill" board and ST-LINK V2 -- both were (too) cheap. Just adding this comment for rest of ppl out there.

Did several tries push RESET to GND - release the RESET around the time first characters appear to terminal from ST-LINK.

Also had several "unknown chip id! 0x5fa0004" tries -- i would say same root cause