We have a problem that the Atmel Eval board (SAMV71 Xplained) can not be loaded/flashed using SAM-BA when the target is connected to the host (Win32/PC) via a Full-Speed (12Mb/s) Hub. We get the following error from SAM-BA: sam-ba_3.1.3-win32\sam-ba_3.1.3\sam-ba.exe ^ -x same-flash-app.qml Opening serial port 'COM20' Connection opened. Detected memory size is 2097152 bytes. Added 24 bytes of padding to align to page size sam-ba_3.1.3-win32/sam-ba_3.1.3/qml/SAMBA/Applet.qml:557: Error: Failed to write pages at address 0x00000000 (status: undefined) Connection closed. However, the Atmel Eval board (SAMV71 Xplained) can be successfully loaded/flashed using a custom (USB) loader application when connected via the Full-Speed (12Mb/s) Hub, or a High-Speed (480MHz) Hub.
Why does SAM-BA fail with Full Speed USB (12 Mb/S) when application code works with
Full Speed USB just fine ??