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Author Topic: FT_Prog on Windows 10  (Read 2497 times)


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FT_Prog on Windows 10
« on: November 28, 2017, 05:29:48 PM »

Has anyone else had a problem running FT_Prog on Windows 10 64 bit?  FT_Prog starts but crashes soon after the Scan button is pressed.

FT_Prog-CmdLine.exe also crashes after scan with the following:

Unhandled Exception: System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at FT260_NET.FTDI.EEPROM_Init(Byte address, FT260PROG_EEPROM_TYPE eepromType)
   at FT_Prog.ScanDevice.ScanForDevices(List`1& deviceList, UpdateReadProgressDelegate status)
   at FT_Prog_CmdLine.commandClass.scanCommandHandler()
   at FT_Prog_CmdLine.commandClass.selectCommand(String command, String[] arguments)
   at FT_Prog_CmdLine.commandClass.readCommand(String[] args)
   at FT_Prog_CmdLine.Program.Main(String[] args)

I don't have any other problems on the machine.  The latest FTDI drivers for FT232x are installed and our FTDI devices are working normally.

Yours Hopefully..



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Re: FT_Prog on Windows 10
« Reply #1 on: December 21, 2018, 09:17:22 AM »


exact the same problem here. Is there a solution already?

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Re: FT_Prog on Windows 10
« Reply #2 on: January 08, 2019, 09:59:55 AM »


It has been found that some other HID-class devices (some MCU debug and in-circuit emulator pods for MCUs are USB HID class for example) can cause an FT_Prog exception when it scans for HID-class FT260 devices. The development team are currently investigating but in the meantime we would advise to check for other USB devices such as debuggers (a USB keyboard and mouse should be fine) and to try un-plugging these when using FT_Prog.

Best Regards, FTDI Community