Abstract
The characteristics of main display devices in the current market is analyzed.And this paper chooses the OLED display module,based on the general requirements of the S3C2440-based-system and the advantages and disadvantages of the display devices above.By analyzing the structure of S3C2440,this work uses SPI bus interface to solve the problem that the 8-bit parallel interface take too many I/O pins.Through the design of the hardware and software,the design meets the demand of the system saving interfaces,and achieving the OLED screen display module application on the condition.
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