<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Topics tagged with commu]]></title><description><![CDATA[A list of topics that have been tagged with commu]]></description><link>https://community.m5stack.com/tags/commu</link><generator>RSS for Node</generator><lastBuildDate>Wed, 29 Apr 2026 19:38:51 GMT</lastBuildDate><atom:link href="https://community.m5stack.com/tags/commu.rss" rel="self" type="application/rss+xml"/><pubDate>Wed, 16 Dec 2020 09:35:51 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Core 2 and COMMU]]></title><description><![CDATA[@chriszang and another update.
So I am happily working on my CAN receiver sketch and just noticed that I forgot to press the button that grounds INT-output of the mc2515 but the upload still worked. Gave it another try (w/o pressing the button) and it's still working - weird.
Then I swapped this COMMU module for my 2nd COMMU Module and here the upload doesn't work.
My explanation is that the grounding of the mcp2515 INT-output basically created a short circuit in the transistor that controls this pin and eventually burned it out. Not a big problem for me as
a) I am not using interrupts in my sketch
b) I have a 2nd COMMU unit
I just wanted to warn you guys that grounding the INT output has unintended consequences.
]]></description><link>https://community.m5stack.com/topic/2616/core-2-and-commu</link><guid isPermaLink="true">https://community.m5stack.com/topic/2616/core-2-and-commu</guid><dc:creator><![CDATA[ChrisZang]]></dc:creator><pubDate>Wed, 16 Dec 2020 09:35:51 GMT</pubDate></item></channel></rss>