OCM-PLD v3.9.2 is the new Official MSX++ Firmware

The One Chip MSX (OCM), first released in 2006, is a Programmable Logic Device (PLD) acting as a true MSX computer. The OCM-PLD pack is all the firmware and software you need to get it up and running. KdL has released OCM-PLD version 3.9.2

With much love and patience, KdL has been working 2 years to develop this latest upgrade for the following 1st and 2nd Gen machines:

• 1chipMSX, Zemmix Neo, SX-1 (regular) and SX-1 Mini/Mini+.
• SM-X (regular), SX-2 and SX-E.

Its creation demanded enormous effort, validating as many as 72 firmware variants. Here’s a summary of the main new features:

• Updated Switched I/O ports ($40-$4F) module to Revision 12.
• Ability to save Smart Commands in the FPGA’s EPCS, making settings permanent at every boot.
• Enhanced ESE-MegaRAM: 2048 KB ASCII-8K and 4096 KB ASCII-16K.
• Improved VDP for greater accuracy and reliability in games.
• Some modules rewritten from scratch have made it possible to update even 1st Gen machines.
• The 2nd Gen includes access to the external device OCM Indicator, designed by HRA!
• Native support for C-BIOS now assists hardware producers and is no longer just for software emulators.
• Many tools provided like mglOcm by ToughkidCST, OCMINFO by NataliaPC, and others.

For full details, see the history.txt file included in the project.

Updating the new tools OCM-EXTRA and OCM-SDBIOS is crucial for enhancing the MSX++ experience. The ++Logo Toolkit integrated into OCM-SDBIOS adds a fun feature, allowing you to customize the BIOS start-up logo to your liking.

Show your support for KdL’s work by donating to the cause.

relevant link: KdL’s web page
relevant link: OCM-pld on GitHub

Source: https://www.msx.org/news/en/ocm-pld-v392-is-the-new-official-msx-firmware