http://forums.leaflabs.com/topic.php?id=74417 A place to share, learn, and grow... en-US Fri, 22 Jan 2016 00:08:53 +0000 http://bbpress.org/?v=1.0.2 q http://forums.leaflabs.com/search.php http://forums.leaflabs.com/topic.php?id=74417#post-105661 Sun, 22 Feb 2015 04:44:05 +0000 tormod 105661@http://forums.leaflabs.com/ <p>Generally when fighting with serial connections, double-check that RX and TX are crossed correctly. Heck, I even try swapping them after double-checking, because there are many devices which label them wrongly. </p> http://forums.leaflabs.com/topic.php?id=74417#post-105657 Fri, 20 Feb 2015 20:36:13 +0000 rogerclark 105657@http://forums.leaflabs.com/ <p>The most likely reason that you can't upload the bootloader is that Boot1 on the maple board is floating.</p> <p>Connect that pin to GND and try again</p> <p>Also. Download the STM "Flash Loader Demonstrator" if you are running windows, as its got a better UI and does the same job, i.e it will let you upload a binary</p> <p>I'd also recommend that you go onto the Arduino forum </p> <p><a href="http://forum.arduino.cc/index.php?topic=265904.new#new" rel="nofollow">http://forum.arduino.cc/index.php?topic=265904.new#new</a></p> <p>As we now have a active community for Maple on there. Which for some reason people don't know exists. </p> http://forums.leaflabs.com/topic.php?id=74417#post-105652 Wed, 18 Feb 2015 00:59:40 +0000 jwaldorf2 105652@http://forums.leaflabs.com/ <p>Update:<br /> So I went back to this page talking about how to reload your bootloader:<br /> <a href="http://leaflabs.com/docs/bootloader.html" rel="nofollow">http://leaflabs.com/docs/bootloader.html</a></p> <p>One of the members describes the process for using an arduino to act as your serial connection. Here's the process I've followed.</p> <p>1.) Removed the jumpers from the USB power so the board can be powered from 3.3V.<br /> 2.) Connected the Arduino Uno's TX and RX pins (1 &amp; 0) to the maple's TX and RX pins (7 &amp; 8).<br /> 3.) Connected the Uno's ground to the maple's ground.<br /> 4.) Held down BUT as I plugged in the 3.3V from the Uno to the Maple's Vin pin.<br /> 5.) Ran the python script python stm32loader.py -p COM9 -evw maple_boot.bin</p> <p>When I do this I receive the error "Can't init Ensure that BOOT0 is enabled and reset device"</p> <p>I've tried holding down BUT and pressing reset then releasing BUT all while everything was connected but I keep getting that same error. </p> http://forums.leaflabs.com/topic.php?id=74417#post-105651 Tue, 17 Feb 2015 23:24:37 +0000 jwaldorf2 105651@http://forums.leaflabs.com/ <p>I'm a student working on a lab assignment relating to memory and we were supposed to read/write to flash to see just how much usable space our board actually provides. After reading this post:<br /> <a href="http://forums.leaflabs.com/topic.php?id=146" rel="nofollow">http://forums.leaflabs.com/topic.php?id=146</a></p> <p>and reviewing the source code from the pages it provided I thought I got it working but I miss read the flag that I needed to use and cleared my entire Flash memory. My device no longer shows up at all in Device manager. I've tried following the instructions here:</p> <p><a href="http://leaflabs.com/docs/bootloader.html" rel="nofollow">http://leaflabs.com/docs/bootloader.html</a></p> <p>but since my device is not being recognized anymore I get an error when I try to run the Python script. </p> <p>Any advice?</p> <p>I'm running a Maple board r5<br /> Windows 7 x64.</p> <p>I had all the drivers and everything working before I bricked it. </p>