Developer

openFPGA 1.2 Changelog

Framework Feature Compatibility

Now that openFPGA is out of beta, core authors can make sure users have the proper minimum version of the framework necessary to run a core. The framework.version_required value in core.json can be changed to “1.2” — and future versions — to remind users who haven’t upgraded that they will be unable to run the core until they do so.

Cartridge adapter support & audio

Cores can now optionally require or support any inserted Analogue cartridge adapters during the boot process, receiving notice with the new Target command [00B1 OS Notify: Cartridge Adapter]. Additionally, a ‘Play Cartridge’ option can be added to the file browser that will skip loading any slot 0 assets and direct the core to use the cartridge instead. Power to the cartridge is controlled more closely.

Digitized line-level analog audio is now available to the core from the cartridge (pin 31), using the existing I2S audio bus.

Other new features

APF will inform a core about whether Pocket is being played through the Dock or not, with Host command [00B2 OS Notify: Docked State]. A new Target command [0152 Debug event log] will let cores write a time-stamped 32-bit number to the debug log during runtime. Finally, a data slot can specify that it should be loaded from a different platform’s Assets folder—if the filename is defined in data.json. Recall that each core can specify up to 4 supported platforms. This way, multiple cores servicing multiple platforms could share some common assets.

Documentation Updates

Detailed changes and improvements