{"id":1313,"date":"2026-10-23T07:05:48","date_gmt":"2026-10-23T07:05:48","guid":{"rendered":"https:\/\/www.r3tr0.net\/?page_id=1313"},"modified":"2026-10-23T08:00:55","modified_gmt":"2026-10-23T08:00:55","slug":"wondermca-firmware","status":"publish","type":"page","link":"https:\/\/www.r3tr0.net\/index.php\/wondermca-firmware\/","title":{"rendered":"WonderMCA Firmware & Tools"},"content":{"rendered":"\n

Keep your WonderMCA up to date: download the firmware that matches your card below and install it over USB by drag and drop.<\/p>\n\n\n\n

\n
\n
\n

Latest firmware \u00b7 16-bit build<\/p>\n\n\n\n

WonderMCA 08EE_003<\/strong><\/p>\n\n\n\n

For a card with SW_CFG2 on<\/strong> (the setup menu shows MCA Bus: 16Bits<\/strong>). Unzip it and copy the wondermca_16b_08EE_003.uf2<\/code> file onto the USB drive of the RP2350 bootloader.<\/p>\n\n\n\n

\n
\u2b07 Download wondermca_16b_08EE_003.zip<\/a><\/div>\n<\/div>\n\n\n\n

MD5 6532f68caa69451c4769c5998ecc450f<\/code> (zip)
MD5 57bc67f2f94c0383063704466aae2842<\/code> (uf2)<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n
\n

Latest firmware \u00b7 8-bit build<\/p>\n\n\n\n

WonderMCA 08EE_003<\/strong><\/p>\n\n\n\n

For a card with SW_CFG2 off<\/strong> (the setup menu shows MCA Bus: 8Bits<\/strong>). Unzip it and copy the wondermca_8b_08EE_003.uf2<\/code> file onto the USB drive of the RP2350 bootloader.<\/p>\n\n\n\n

\n
\u2b07 Download wondermca_8b_08EE_003.zip<\/a><\/div>\n<\/div>\n\n\n\n

MD5 93e0d0fa2b2f9fc31aa80a3af5eb5b5d<\/code> (zip)
MD5 248c6a1a20d2032b680c466cab230c66<\/code> (uf2)<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n

\n

Logic \u00b7 CPLD revision 123 \u00b7 board revision 9<\/p>\n\n\n\n

WonderMCA CPLD 123<\/strong><\/p>\n\n\n\n

The programming file for the ATF1508, in .svf<\/code> format. Not part of normal use: only for a new logic revision. Put it in the UPGRADE<\/code> folder of the microSD card as cpld_upgrade_123.svf<\/code>.<\/p>\n\n\n\n

\n
\u2b07 Download (file to add)<\/a><\/div>\n<\/div>\n\n\n\n

MD5 [download link to add]<\/em><\/p>\n<\/div>\n\n\n\n

Tools<\/h2>\n\n\n\n

Disk images to use with WonderMCA. Each download is a .zip holding a 1.44 MB floppy image (.img) that you can mount as the WonderMCA floppy or write to a real diskette.<\/p>\n\n\n\n

Disk<\/th>Description<\/th>Download<\/th>MD5<\/th><\/tr><\/thead>
Reference disk (ADF)<\/strong><\/td>Bootable reference diskette (French, MS-DOS 6.22) with @DEAD.ADF<\/code>, the adapter description file for WonderMCA (adapter ID 0DEADh<\/code>). Boot the PS\/2 from it to configure the card, or copy @DEAD.ADF<\/code> onto your own reference diskette.<\/td>refwondermca.zip<\/a><\/td>zip e16897dd99a68104e1f270f016d3a700<\/code>
img 059ac080ecf5d1061b9cbf260dec6aca<\/code><\/td><\/tr>
CDMKE CD-ROM driver<\/strong><\/td>CDMKE.SYS<\/code> v4.11, the DOS and Windows 3.1 driver for Panasonic \/ MKE proprietary-interface CD-ROM drives (CR-562\/563, CR-521\/522\/523), including drives wired to a Sound Blaster. Copy it to your boot disk and add for example DEVICE=CDMKE.SYS \/D:MSCD001 \/SBP:220<\/code> to CONFIG.SYS<\/code>.<\/td>cdmke.zip<\/a><\/td>zip 8ae4601c695056af074253e5886fed97<\/code>
img 1fccb3ccdb7e9b46c13c029cab42e687<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Install the firmware<\/h2>\n\n\n\n
    \n
  1. Switch the PS\/2 off and take the card out of it.<\/li>\n\n\n\n
  2. Choose the build that matches your SW_CFG2 switch: 16-bit<\/strong> (on) or 8-bit<\/strong> (off).<\/li>\n\n\n\n
  3. Connect the USB-C port of the card to your computer.<\/li>\n\n\n\n
  4. Hold the BOOT RP<\/strong> button and press RESET<\/strong>. Release both. A USB drive appears on your computer.<\/li>\n\n\n\n
  5. Unzip the download and copy the .uf2<\/code> file onto that drive. The card restarts by itself when the copy ends.<\/li>\n\n\n\n
  6. Unplug the cable, put the card back in the PS\/2 (with the PS\/2 off) and start it. Check the version on the screenpad, Others > Information<\/strong>, line FW:<\/strong>.<\/li>\n<\/ol>\n\n\n\n
    \n

    Warning.<\/strong> Never plug the card into the PS\/2 while the USB-C cable is connected.<\/p>\n<\/div>\n\n\n\n

    The full procedure, the CPLD update step by step and what each screen shows are in the documentation: Firmware and CPLD update<\/a>. What changed in each version is in the release notes<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Keep your WonderMCA up to date: download the firmware that matches your card below and install it over USB by drag and drop. Latest firmware \u00b7 16-bit build WonderMCA 08EE_003 For a card with SW_CFG2 on (the setup menu shows MCA Bus: 16Bits). Unzip it and copy the wondermca_16b_08EE_003.uf2 file onto the USB drive of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"tags":[],"class_list":["post-1313","page","type-page","status-publish","hentry"],"yoast_head":"\nWonderMCA Firmware & Tools - R3TR0<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-firmware\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WonderMCA Firmware & Tools - R3TR0\" \/>\n<meta property=\"og:description\" content=\"Keep your WonderMCA up to date: download the firmware that matches your card below and install it over USB by drag and drop. 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