http://forums.leaflabs.com/topic.php?id=595 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:08:41 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=595#post-3305 Thu, 06 Jan 2011 14:28:41 +0000 poslathian 3305@http://forums.leaflabs.com/ <p>zinger,<br /> Because the rev1's did not have a secondary button, that perpetual bootloader was not an active feature of the firmware flashed on the rev1's at shiptime. However you CAN flash a new bootloader on there using the serial bootloader. You mentioned you had seen the post here: <a href="http://forums.leaflabs.com/topic.php?id=32#post-118" rel="nofollow">http://forums.leaflabs.com/topic.php?id=32#post-118</a> about how to do this. Did you try flashing a new bootloader or just tried getting perpetual bootloader mode to work? Sorry if this was unclear. </p> <p> The serial bootloader is a feature of the stm32 itself, and thus works no matter what revision of the Maple bootloader you have, but you do need to do some skywiring on a Rev1 to get it to work. This whole process is described in the above post id=32#post-118. Let us know if this works for you! You can get the current bootloader from github here: <a href="http://github.com/leaflabs/maple-bootloader" rel="nofollow">http://github.com/leaflabs/maple-bootloader</a> And you will need some serial device to flash it (ftdi, arduino, another maple). Were also experimenting with a new non-dfu bootloader that will work nicely with any Maple board, will keep the forum posted about this. </p> http://forums.leaflabs.com/topic.php?id=595#post-3287 Mon, 03 Jan 2011 21:21:02 +0000 zinger 3287@http://forums.leaflabs.com/ <p>When trying to upload a sketch to a V1 board i've been getting the "couldn't find the DFU device: [1EAF:0003]" error. In reading forum threads and what not it appears to be a fairly common problem that can be overcome by forcing the board into another boot loader state that doest not require the reset - this is the so called "perpetual boot loader mode."</p> <p>I followed the instructions from here: <a href="http://leaflabs.com/docs/errata.html" rel="nofollow">http://leaflabs.com/docs/errata.html</a> </p> <p>and here: <a href="http://forums.leaflabs.com/topic.php?id=32#post-126" rel="nofollow">http://forums.leaflabs.com/topic.php?id=32#post-126</a></p> <p>The issue is that It doesn't appear that I'm ever able to get my board into the perpetual boot loader mode as I never get the long blinks indicated.</p> <p>I've tried this procedure (and several variations)<br /> 1. Hit the Reset button -&gt; get the 6 rapid blinks (i never got additional blinks described - just the rapid burst of 6 at beginning)<br /> 2. Hit the reset button again and quickly short a wire between vcc and 5th pin on JTAG side of ARM chip - leave the short in place for several seconds - but never get any more blue blinks<br /> 3. Subsequent presses of reset give the 6 rapid blinks again (which I believe confirms that we're NOT in perpetual boot loader mode)</p> <p>Should I be concerned that there no blinks following the original rapid burst?</p> <p>Any ideas and/or recommendations? </p>