2025-11-12 10:44 PM
I am experiencing issues when attempting to upload the code to the MCU mentioned above on my board. I am trying to upload the code using the programmer on the STM32F407 Discovery board. It reads the chip, it erases the chip, but it does not upload the code. What could be the reason? The log file and the schematic of the MCU section of my board are below. Thank you for your assistance.
08:47:43 : MASS ERASE ...
08:47:43 : Mass erase successfully achieved
08:47:43 : UPLOADING ...
08:47:43 : Size : 1024 Bytes
08:47:43 : Address : 0x8000000
08:47:43 : Read progress:
08:47:43 : Data read successfully
08:47:43 : Time elapsed during the read operation is: 00:00:00.010
08:51:28 : MASS ERASE ...
08:51:29 : Mass erase successfully achieved
08:51:29 : UPLOADING ...
08:51:29 : Size : 1024 Bytes
08:51:29 : Address : 0x8000000
08:51:29 : Read progress:
08:51:29 : Data read successfully
08:51:29 : Time elapsed during the read operation is: 00:00:00.010
08:51:32 : Read progress:
08:51:33 : Error: Data mismatch found at address 0x08000000 (byte = 0xFF instead of 0x00)
08:51:33 : Time elapsed during verifying operation: 00:00:00.525
2025-11-12 11:33 PM
Hello @cereyanmühendisi
Make sure to use the latest release of STM32Cubeprogrammer.
Try disconnecting and reconnecting the device.
Did you have the same issue with both the GUI and CLI?