p2qvga8bpp-spin

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This is a P2X8C4M64P/Propeller 2 QVGA display engine.

IMPORTANT: This software is meant to be used with the p2-spin-standard-library (P2X8C4M64P). Please install the library first before attempting to use this code, otherwise you will be missing several files required to build the project.

Salient Features

• QVGA 320x240 resolution (signalled as 640x480, with pixel-doubling), 8bpp color
• Integration with generic bitmap graphics library
• Double-buffering (optional)
• Wait for vsync, or current vsync status (function calls)
• Display intensity
• Includes simple video timing adjustment utility

Requirements

P2/SPIN2:

• p2-spin-standard-library
• 1 extra core/cog for the PASM engine
• 76.8kBytes RAM for single-buffered display, or 153.6kBytes for double-buffered
• graphics.common.spin2h (provided by p2-spin-standard-library)

Compiler Compatibility

Processor	Language	Compiler	Backend	Status
P2	SPIN2	FlexSpin (6.5.0)	NuCode	FTBFS
P2	SPIN2	FlexSpin (6.5.0)	Native/PASM2	OK

(other versions or toolchains not listed are not supported, and may or may not work)

Limitations

• Changing the palette array while the driver is running has no effect - it must be restarted to take effect