counter.ys « PRESENTATION_Intro « manual - iCE40/yosys - clone of https://github.com/YosysHQ/yosys

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26pre { line-height: 125%; margin: 0; }
td.linenos pre { color: #00000

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This directory contains the interface for the Raspberry Pi direct hardware framebuffer.
This talks directly to the raspberry pi hardware (not via a linux framebuffer driver).

If you are using linux on the Pi then consider using the linux-X or the linux-Framebuffer
board definitions instead of this one. This is really designed for non-Linux platforms
or where there is no linux display driver available. It will still work under linux but
the other solutions might be better.

This graphics interface is software driven - it is not an accelerated interface.

The board definition should work on any operating system that will work on the Raspberry Pi
	eg. Linux, FreeRTOS, FreeBSD.

On this board uGFX currently supports:
	- GDISP via the framebuffer driver 

The following variables may optionally be defined in your gfxconf.h or your makefile...
	- GDISP_LLD_PIXELFORMAT			default = GDISP_PIXELFORMAT_RGB565
	- GDISP_SCREEN_WIDTH			default = 800
	- GDISP_SCREEN_HEIGHT			default = 600

Note that this also provides a Raspberry Pi specific api defined in rpi_mailbox.h to talk
directly to the graphics co-processor from the ARM processor.