topic Help with a FRDM-KL25Z file download problem? in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Help-with-a-FRDM-KL25Z-file-download-problem/m-p/299519#M12447 <HTML><HEAD></HEAD><BODY><P>I am having trouble copying files to my FRDM-KL25Z boards. When it works a dialog box briefly appears saying "Copying 1 item" and the transfer is successful and the program starts running. In the failure mode the dialog box does not appear, the file name appears instantly in the FRDM-KL25Z Windows Explorer window, and the small LED associated with the OpenSDA interface flashes quickly - 7 or 8 flashes and a pause - repeatedly.</P><P></P><P>This behaviour is intermittent. I cannot see a pattern. I get the same result with several FRDM boards, with two laptops (both Windows 7). I have the latest PE Micro OpenSDA firmware loaded and the latest USB drivers on both machines.</P><P></P><P>I believe the FRDM-KL25Z hardware is working as (a) the boards always enumerate as FRDM-KL25Z disk drives, (b) I have no trouble updating OpenSDA firmware and (c) even if the download fails the previously loaded KL25Z </P><P>firmware continues to run.</P><P></P><P>It feels like a device driver fault or a USB fault, or perhaps a fault with the connection between the two processors on the FRDM board. Has anyone else seen this problem? How do I fix it? Help!</P></BODY></HTML> Wed, 19 Mar 2014 13:59:07 GMT charlespalmer 2014-03-19T13:59:07Z Help with a FRDM-KL25Z file download problem? https://community.nxp.com/t5/Kinetis-Microcontrollers/Help-with-a-FRDM-KL25Z-file-download-problem/m-p/299519#M12447 <HTML><HEAD></HEAD><BODY><P>I am having trouble copying files to my FRDM-KL25Z boards. When it works a dialog box briefly appears saying "Copying 1 item" and the transfer is successful and the program starts running. In the failure mode the dialog box does not appear, the file name appears instantly in the FRDM-KL25Z Windows Explorer window, and the small LED associated with the OpenSDA interface flashes quickly - 7 or 8 flashes and a pause - repeatedly.</P><P></P><P>This behaviour is intermittent. I cannot see a pattern. I get the same result with several FRDM boards, with two laptops (both Windows 7). I have the latest PE Micro OpenSDA firmware loaded and the latest USB drivers on both machines.</P><P></P><P>I believe the FRDM-KL25Z hardware is working as (a) the boards always enumerate as FRDM-KL25Z disk drives, (b) I have no trouble updating OpenSDA firmware and (c) even if the download fails the previously loaded KL25Z </P><P>firmware continues to run.</P><P></P><P>It feels like a device driver fault or a USB fault, or perhaps a fault with the connection between the two processors on the FRDM board. Has anyone else seen this problem? How do I fix it? Help!</P></BODY></HTML> Wed, 19 Mar 2014 13:59:07 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Help-with-a-FRDM-KL25Z-file-download-problem/m-p/299519#M12447 charlespalmer 2014-03-19T13:59:07Z Re: Help with a FRDM-KL25Z file download problem? https://community.nxp.com/t5/Kinetis-Microcontrollers/Help-with-a-FRDM-KL25Z-file-download-problem/m-p/299520#M12448 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>it could be multiple reasons, the ones I have seen the most are:</P><P>- Win 8.x (but you say you are using Win7, so this should be fine)</P><P>- virus scanner</P><P>- using of a file commander/accelerator ==&gt; use the DOS shell copy command instead.</P><P></P><P>see <A href="http://mcuoneclipse.com/2013/10/07/frdm-boards-not-responding-check-your-virus-scanner/" title="http://mcuoneclipse.com/2013/10/07/frdm-boards-not-responding-check-your-virus-scanner/">FRDM Board not responding? Check your Virus Scanner! | MCU on Eclipse</A></P></BODY></HTML> Wed, 19 Mar 2014 14:04:37 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Help-with-a-FRDM-KL25Z-file-download-problem/m-p/299520#M12448 BlackNight 2014-03-19T14:04:37Z