Emulating an LCD controller with a Papailio

in FPGA, LCD by DP | 0 comments

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Alex received a monochrome 256×128 LCD with a missing controller chip. The board features 8 Hitachi LCD drivers, but without the controller you have to drive the display by constantly sending data to refresh the picture. After some research he stumbled onto the Hitachi LCD controller driver LSI data book, which gave him enough info to develop the controller on the Papilio board.

I couldn’t find a datasheet for it or pinouts so I went old school and tracked down datasheets for the chips on board and did some reverse engineering of the schematic using a continuity meter. A very good datasheet resource is the “Hitachi LCD Controller Driver LSI Data Book” which is a compendium of a large number of Hitachi LCD controller chips.

Via Gadget Factory.

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