2025-09-09 8:24 AM
Hi,
Every time I try to connect the eval kit to the GUI I get this error:
This board doesn't reply properly to connect !
Can anyone tell me how to solve this problem. I have made sure that the correct COM Port and baud rate is selected. Also, the power indicator LED is ON and the RED LED is flashing.
Your help is greatly appreciated.
Regards,
2025-09-09 8:54 AM
Hi,
make sure the baud rate is 921600. Make sure there no other STLink device connected. Try to flash the firmware (click on the Update firmware button on the main tab) in case the flash has been erased or modified. If it is still not working, could you send the content of the logging window?
Rgds
BT
2025-09-09 8:58 AM
The content of the logging window is as follows:
0: serEncSysNfcResetReq()
1: serEncSysNfcResetReq()
2: serEncSysNfcResetReq()
3: serEncSysNfcResetReq()
It will not let me update firmware as it doesn't properly connect to the board.
2025-09-09 8:59 AM
The baud rate is sent to 921600 for both COM port and the board
2025-09-09 9:11 AM
Hi,
the update firmware button is available even when the connect has failed. The firmware update uses the mass storage feature of the STLink. When clicking on the update firmware, you can select the proper device (25R200A) and start the firmware download.
In case the mass storage is blocked by your organisation, you can use STM32CubeProgrammer to download the firmware (you can retrieve the firmware location from the STEVAL-25R200 GUI update firmware window).
Rgds
BT
2025-09-09 9:21 AM
How do I use the STM32CubeProgrammer?
The firmware directory that the GUI is pointing to has nothing in it.
2025-09-09 10:15 AM
2025-09-09 11:50 AM
Hi,
when clicking on Scan board in the upgrade firmware window, nothing is displayed? Copy the "FW dir": this contains the binary.
For STM32CubeProgrammer, go on st.com and download the installer. Start STM32CubeProgrammer, click on connect. If you cannot connect, check your USB cable. Open the "FW dir" and load the FW onto the board.
Rgds
BT
2025-09-10 4:59 AM
Yes, nothing comes up when I press Scan boards.
I will try the STM32Cubeprogrammer and try to connect via the programmer.