Dov Pauzner

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7 years, 11 months ago.

STM32F746G show only 12 kb

After upgrading to the latest firmware with STM32 ST-Link Utility the device FAILED. And STM32F746G show only 12 kb when connecting to the PC without any display pictures. How restore factory firmware or repair the problem ? Regards, Dov.

7 Answers

Igor Zbirka
7 years, 9 months ago.

I had similar problem when the jumper for power supply selection wasn't properly set - i.e. I had it set for USB_fs while the power supply was connected via USB-ST-link. Once I've set the jumper for 5V ST link it all worked well and it gave me around 1MB space.

Hope it helps,

Igor

The jumper for power supply selection was properly set and used latest USB driver for WIN7 (32 bit) from STSW-LINK009. The latest firmware from STSW-LINK007 was used too. But the problem still here.

posted by Dov Pauzner 03 Jul 2016
mbed men
7 years, 9 months ago.

May be the driver isn't updated. You need to install the latest ST-LINK/V2 driver (STSW-LINK009) as follow in the displayed instructions: https://developer.mbed.org/teams/ST/wiki/ST-Link-Driver#installation-instructions

I recommend you to update ST-Link firmware STSW-LINK007: https://my.st.com/content/my_st_com/en/products/embedded-software/development-tool-software/stsw-link007.license%3d1467370002238.html

To upgrade firmware version using STM32 ST-LINK Utility : go to ST-LINK>firmware update, Then disconnect and connect your board.

Please let me know if this workaround resolves your issue or problem still exists.

The jumper for power supply selection was properly set and used latest USB driver for WIN7 (32 bit) from STSW-LINK009. The latest firmware from STSW-LINK007 was used too. But the problem still here.

posted by Dov Pauzner 03 Jul 2016
Victor SSS
7 years, 4 months ago.

STM32F411RE show only 12 kb. After updating in STM32 ST-Link Utility the device Succes , but it gives an error when connecting

Maxime TEISSIER
7 years, 4 months ago.

Sometimes, the program inside the MCU prevent the STLink to establish communication for reprogramming. It could be due to a low power mode or because the SWD pin have been reconfigured.

If this happens, the work around is to maintain the board reset (B2) pressed while drag'n dropping the program in the nucleo disk drive. Maintain the reset until the LD1 start blinking and it should solve the issue.

Best regards, Maxime

Thank you, Maxime! I tried a number of things, but this worked!

posted by Mitch Nielsen 05 Oct 2018
Yco Super
6 years, 10 months ago.

I have the same probelm. I already try to upgreade the firmware, reinstall the driver (on win10) but I sill have the LED3 and LED1 always RED. Is there a way to know the error?

Joe Ferguson
7 years, 5 months ago.

I have this same problem: The jumper for power supply selection is properly set and installed the latest USB driver for WIN10 (64 bit) from STSW-LINK009. And also the latest firmware from STSW-LINK007 is installed too. But the problem of appearing as a USB device with only 12KB (completely full) is still happening. Are there any suggestions out there?

Wim Huiskamp
7 years, 5 months ago.

You can try the ST Link Utility and select Target/Erase or Target/Program (after selecting an mbed binary file produced by the online compiler). This should reset the target which may somehow have become unresponsive to the drag-drop programming interface after your firmware update.