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Diffstat (limited to 'drivers/gdisp/AlteraFramereader/readme.txt')
| -rw-r--r-- | drivers/gdisp/AlteraFramereader/readme.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gdisp/AlteraFramereader/readme.txt b/drivers/gdisp/AlteraFramereader/readme.txt new file mode 100644 index 00000000..87777be4 --- /dev/null +++ b/drivers/gdisp/AlteraFramereader/readme.txt @@ -0,0 +1,27 @@ +This driver can be used for the "Frame Reader IP Core" that comes with the "Video and Image Processing Suite" package +from Altera/Intel/Quartus. + +This driver takes advantage of the double buffering feature offered by the "Frame Reader IP Core". The following commands +can be used through the gdispControl() API to manage the two frame buffers: + + gdispControl(GDISP_CONTROL_BUFFERS_ENABLE, 0); // Enabel the two framebuffers (Disabled by default) + gdispControl(GDISP_CONTROL_BUFFERS_DISABLE, 0); // Disable the two framebuffers (Disabled by default) + gdispControl(GDISP_CONTROL_BUFFERS_SWAP, 0); // Swap the framebuffers (if enabled) + +The double buffering is taken care of completely by the driver. It sets the framebuffer pointers correctly so that it's +transparent to the application. There's no need to handle the two framebuffers manually through the multiple displays +support offered by uGFX. Using GDISP_CONTROL_BUFFERS_SWAP will swap the framebuffers on the actual hardware as well +as swap the framebuffer pointers for the default GDisplay to draw to the other framebuffer. + + +To use this driver: + +1. Add in your gfxconf.h: + a) #define GFX_USE_GDISP TRUE + +2. To your makefile add the following lines: + include $(GFXLIB)/gfx.mk + include $(GFXLIB)/drivers/gdisp/AlteraFramereader/driver.mk + +3. Add a board_alteraframereader.h to you project directory (or board directory) + base on one of the templates found in this drivers directory. |