Can on Ulis Notes https://wolf-u.li/en/tag/can/ Recent content in Can on Ulis Notes Hugo en Copyright 2006-CURRENTYEAR Uli Wolf - All rights reserved Mon, 26 Jun 2023 23:06:36 +2600 BIGTREETECH EBB36 CAN bus connector https://wolf-u.li/bigtreetech-ebb36-can-bus-connector/ Mon, 26 Jun 2023 23:06:36 +2600 https://wolf-u.li/bigtreetech-ebb36-can-bus-connector/ <p>When i received the <a href="https://shareasale.com/r.cfm?b=1890927&u=3683758&m=131011&urllink=https%3a%2f%2fbiqu.equipment%2fproducts%2fbigtreetech-ebb-36-42-can-bus-for-connecting-klipper-expansion-device%3fvariant%3d39760665215074&afftrack=">EBB36*</a> of BIGTREETECH i slowly built up all the connections towards my existing hardware of the Ender 3v2. One information that was missing was the can bus connector details (e.g. type and pinout). <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-2322978122735420" data-ad-slot="3161252284"></ins> The <link rel=dns-prefetch href=//github.com /> <a href="https://github.com/bigtreetech/EBB/blob/master/EBB%20CAN%20V1.1%20%28STM32G0B1%29/EBB36%20CAN%20V1.1/BIGTREETECH%20EBB36%20CAN%20V1.1%20User%20Manual.pdf" title="manual" target="_blank" rel="nofollow noopener noreferrer" > manual&nbsp;<svg xmlns="http://www.w3.org/2000/svg" class="icon" aria-hidden="true" focusable="false" viewBox="0 -128 512 640"> <path d="M384 320c-17.67 0-32 14.33-32 32v96H64V160h96c17.67 0 32-14.32 32-32s-14.33-32-32-32L64 96c-35.35 0-64 28.65-64 64V448c0 35.34 28.65 64 64 64h288c35.35 0 64-28.66 64-64v-96C416 334.3 401.7 320 384 320zM488 0H352c-12.94 0-24.62 7.797-29.56 19.75c-4.969 11.97-2.219 25.72 6.938 34.88L370.8 96L169.4 297.4c-12.5 12.5-12.5 32.75 0 45.25C175.6 348.9 183.8 352 192 352s16.38-3.125 22.62-9.375L416 141.3l41.38 41.38c9.156 9.141 22.88 11.84 34.88 6.938C504.2 184.6 512 172.9 512 160V24C512 10.74 501.3 0 488 0z"/> </svg></a> unfortunately doesn&rsquo;t show the details. You could derive it from the <link rel=dns-prefetch href=//github.com /> <a href="https://github.com/bigtreetech/EBB/blob/master/EBB%20CAN%20V1.1%20%28STM32G0B1%29/EBB36%20CAN%20V1.1/Hardware/BIGTREETECH%20EBB36%20CAN%20V1.1-SCH.pdf" title="schematics" target="_blank" rel="nofollow noopener noreferrer" > schematics&nbsp;<svg xmlns="http://www.w3.org/2000/svg" class="icon" aria-hidden="true" focusable="false" viewBox="0 -128 512 640"> <path d="M384 320c-17.67 0-32 14.33-32 32v96H64V160h96c17.67 0 32-14.32 32-32s-14.33-32-32-32L64 96c-35.35 0-64 28.65-64 64V448c0 35.34 28.65 64 64 64h288c35.35 0 64-28.66 64-64v-96C416 334.3 401.7 320 384 320zM488 0H352c-12.94 0-24.62 7.797-29.56 19.75c-4.969 11.97-2.219 25.72 6.938 34.88L370.8 96L169.4 297.4c-12.5 12.5-12.5 32.75 0 45.25C175.6 348.9 183.8 352 192 352s16.38-3.125 22.62-9.375L416 141.3l41.38 41.38c9.156 9.141 22.88 11.84 34.88 6.938C504.2 184.6 512 172.9 512 160V24C512 10.74 501.3 0 488 0z"/> </svg></a> but still isn&rsquo;t very visual.</p> When i received the EBB36* of BIGTREETECH i slowly built up all the connections towards my existing hardware of the Ender 3v2. One information that was missing was the can bus connector details (e.g. type and pinout). The manual  unfortunately doesn’t show the details. You could derive it from the schematics  but still isn’t very visual.

On different sites i then found the type of connector (Molex Microfit 3.0 2x2 connector) which is supposed to be connected as follows:

EBB CAN Connector

]]> BIGTREETECH EBB36 flash with Klipper shows File segment @0x08000000 error https://wolf-u.li/ebb36-flash-with-klipper-shows-error-file-segment-0x08000000/ Sat, 10 Jun 2023 23:37:04 +1000 https://wolf-u.li/ebb36-flash-with-klipper-shows-error-file-segment-0x08000000/ <p>While trying to flash the klipper firmware to an Bigtreetech EBB36, i ran into the following error:</p> <div class="highlight"><div class="chroma"> <table class="lntable"><tr><td class="lntd"> <pre tabindex="0" class="chroma"><code><span class="lnt">1 </span><span class="lnt">2 </span><span class="lnt">3 </span><span class="lnt">4 </span><span class="lnt">5 </span><span class="lnt">6 </span></code></pre></td> <td class="lntd"> <pre tabindex="0" class="chroma"><code class="language-plaintext" data-lang="plaintext"><span class="line"><span class="cl">23:29:04 : Erasing memory corresponding to segment 0: </span></span><span class="line"><span class="cl">23:29:04 : Not flash Memory : No erase done </span></span><span class="line"><span class="cl">23:29:04 : File segment @0x08000000 is not 255-bytes aligned. It will be aligned to @0x07FFFFF8 </span></span><span class="line"><span class="cl">23:29:04 : Download in Progress: </span></span><span class="line"><span class="cl">23:29:05 : Error: failed to download Segment[0] </span></span><span class="line"><span class="cl">23:29:05 : Error: failed to download the File </span></span></code></pre></td></tr></table> </div> </div><p>After fiddeling around a bit i finally stumbled across two solutions.</p> While trying to flash the klipper firmware to an Bigtreetech EBB36, i ran into the following error:

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23:29:04 : Erasing memory corresponding to segment 0:
23:29:04 : Not flash Memory : No erase done
23:29:04 : File segment @0x08000000 is not 255-bytes aligned. It will be aligned to @0x07FFFFF8
23:29:04 : Download in Progress:
23:29:05 : Error: failed to download Segment[0]
23:29:05 : Error: failed to download the File

After fiddeling around a bit i finally stumbled across two solutions.

Use Canboot to flash an intermediate firmware

This  failed for me but might a possible path to fix it

Use an older version of the STM32CubeProgrammer

I used version 2.10 of the STM32CubeProgrammer  which solved the case for me at least.

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