<?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[Double precision floating point for Core2]]></title><description><![CDATA[<p dir="auto">I would like support for double precision floating point to be available as an option on Core2. I am currently working on a design that requires that higher level of precision. You can view this thread “Is Double Precision Floating Point available in micropython on a Core2? (Needed for a GPS project)” under micropython software for details. I believe this is as simple as building a second firmware image which supports double precision floating point. The Pyboard does support this by having 5 different images available for their board supporting different features including double precision floating point. (<a href="https://pyboard.org/download/" target="_blank" rel="noopener noreferrer nofollow ugc">https://pyboard.org/download/</a> ) Micropython does support this option. It appears as a simple change to the mpconfigport.h file. The line MICROPY_FLOAT_IMPL_FLOAT needs to be changed to MICROPY_FLOAT_IMPL_DOUBLE. Here is a link to a post describing doing this for a PI PICO.  <a href="https://forums.raspberrypi.com/viewtopic.php?t=319525" target="_blank" rel="noopener noreferrer nofollow ugc">https://forums.raspberrypi.com/viewtopic.php?t=319525</a> I am sure there are other commercial or industrial applications that may encounter the same problems I did when dealing with very large and very small numbers in the same calculation. Anyone decoding the uBlox GPS proprietary messages will have a problem calculating an accurate time from these messages.</p>
<p dir="auto">Thanks for your consideration.</p>
<p dir="auto">Burke</p>
]]></description><link>https://community.m5stack.com/topic/4546/double-precision-floating-point-for-core2</link><generator>RSS for Node</generator><lastBuildDate>Wed, 29 Apr 2026 10:02:37 GMT</lastBuildDate><atom:link href="https://community.m5stack.com/topic/4546.rss" rel="self" type="application/rss+xml"/><pubDate>Sat, 20 Aug 2022 18:56:43 GMT</pubDate><ttl>60</ttl></channel></rss>