{"id":1484,"date":"2025-04-11T06:02:09","date_gmt":"2025-04-11T06:02:09","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&#038;p=1484"},"modified":"2025-06-10T06:39:31","modified_gmt":"2025-06-10T06:39:31","slug":"mmi202-firmware-version-history-and-updates","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-controllers\/mmi203-product-documentation\/mmi203-firmware-revisions-and-reflashing\/mmi202-firmware-version-history-and-updates\/","title":{"rendered":"MMi202: Firmware version history and updates"},"content":{"rendered":"\n<p>The following table lists the most significant aspects of the various\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o370\">Firmware<\/a>\u00a0versions for MMi202. They are listed with the most recent first. The latest version is available as an rfl file on the SPLat website in the customer support area. We have only listed publicly released versions.<\/p>\n\n\n\n<p>If you are connected to the Internet, click a hot-linked filename below to download it directly from our website.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><tbody><tr><td>Caution:\u00a0<strong>Be very sure not to\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o683\">reFlash<\/a>\u00a0any of these into an MMi203. We goofed on the MMi203, so it will except an MMi202 Firmware, but it will not work with incorrect firmware.<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Version \/ date<\/th><th>rfl file<\/th><th>Description<\/th><\/tr><tr><td>08Mar11<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-34.rfl\">MMi202v3-34.rfl<\/a><\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o2825\">Dialect<\/a>\u00a026 (<code><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/communications-instructions\/default-serial-port\/comrx_fgetnum-fw-d26\/\">ComRx_fGetNum<\/a> n<\/code>)<\/td><\/tr><tr><td>23Aug10<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-29.rfl\">MMi202v3-29.rfl<\/a><\/td><td>Various enhancements to Xwire<\/td><\/tr><tr><td>11Aug10<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-28.rfl\">MMi202v3-28.rfl<\/a><\/td><td>Dialect 23 supportVarious enhancements to XwireBug: implemented jndexing of\u00a0<code><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/floating-point-instructions\/fixtomem16s-mm-d21\/\">FixToMem16S<\/a><\/code>,\u00a0<code><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/floating-point-instructions\/fixtomem16u-mm-d21\/\">FixToMem16U<\/a><\/code>,\u00a0<code><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/floating-point-instructions\/floatmem16u-mm-d21\/\">FloatMem16U<\/a><\/code>, and\u00a0<code><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/floating-point-instructions\/floatmem16s-mm-d21\/\">FloatMem16S<\/a><\/code>ModBus made more robust when working with 3rd party devices that are\u00a0<em>non-compliant<\/em>\u00a0with the ModBus 3.5 character time end of message delay.<\/td><\/tr><tr><td>20Jan10<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-24.rfl\">MMi202v3-24.rfl<\/a><\/td><td>Dialect 21 supportFast program download support. Works with SPLat\/PC 10.21.1 and laterOBLCD instructions can be mapped to an external\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o5243\">HMI<\/a>\u00a0via ModBus<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/glossary-of-terms\/#o431\">CPU<\/a>\u00a0temperature readout<\/td><\/tr><tr><td>25Mar09<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-21.rfl\">MMi202v3-21.rfl<\/a><\/td><td>Added ModBus Master RTU modeSupport for\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-onboard-peripherals\/onboard-lcd\/oblcd-programming\/oblcd-examples\/example-lcd-backlight-auto-off-timers\/\">dimmable LCD backlight<\/a>Improved accuracy of analog outputsAtomic handling of multi-byte variables in Xwire receiveBug fix in boot loaderExtended LCD custom characters to allow large format 7-segment digit generation<\/td><\/tr><tr><td>17Jun08<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-20.rfl\">MMi202v3-20.rfl<\/a><\/td><td>Fixed Xwire bug<\/td><\/tr><tr><td>8Oct07<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-16.rfl\">MMi202v3-16.rfl<\/a><\/td><td>Bug: Reporting wrong version number<\/td><\/tr><tr><td>29Aug07<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-15.rfl\">MMi202v3-15.rfl<\/a><\/td><td>Dialect 20, adds\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/tutorials-application-notes-and-white-papers\/xwire\/xwire-introduction\/\">Xwire<\/a>,\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-onboard-peripherals\/system-calls-the-cpu-device\/cpu-altering-supertimer-10ms-timebase-d20\/\">10mS timebase adjustment<\/a>Discontinues TSP<\/td><\/tr><tr><td>V3.13 23Mar07<\/td><td><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/mmi202v3-13.rfl\">MMi202v3-13.rfl<\/a><\/td><td>Dialect 19, adds\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-onboard-peripherals\/onboard-counter-type-b\/obcb-introduction\/\">OBCB<\/a>Bug fixes<\/td><\/tr><tr><td>V3.0<\/td><td>N\/A<\/td><td>Initial release. Dialect 18<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The following table lists the most significant aspects of the various\u00a0Firmware\u00a0versions for MMi202. They are listed with the most recent first. The latest version is&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1483,"menu_order":0,"template":"","class_list":["post-1484","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MMi202: Firmware version history and updates - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MMi202: Firmware version history and updates - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"The following table lists the most significant aspects of the various\u00a0Firmware\u00a0versions for MMi202. They are listed with the most recent first. 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