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A drawing and some ascii characters was displayed. The 5x7 ascii font and drawing was stored in ATmega16's flash. For hardware connection, please see glcd.h.

Image glcd-sd-1

Some Chinese characters was displayed. The 16x16 GB2312 font (267616 Bytes) was stored in a 8MB SD card.(It's stored in raw data, without file system support).
For hardware connection, please see glcd.h and mmc.h.

Image glcd-sd-2

SD card need a 3.3V VCC, since ATmega16 was powered by 5.0V, a 5V to 3.3V level converter is necessary between signal pins.

Image sd

sun ge 2007-10-24