showing the stability of the lcd module displays the power supply design

control commands via the interface is input to the control command decoder decodes the command, and then outputs the clock, horizontal sync, vertical sync signal, thereby controlling the oscillation frequency of the OLED display, the ranks of the display device, and a COG LCD Display voltage conversion module OLED display contents offset drive module; if the display data (128 × 64bits), then the display data to the control circuit via GDDRAM MCU interface input buffer, then the local color decoder decodes the data, and finally displays the decoded data through the line driver to drive lcd module displays showing the stability of the Serial display modules the power supply design
Hardware architecture design diagram shown in Figure 2, the external hardware circuit DC-DC converter uses TPS7333 chip 3.3V to 5V power into power, and the power signal output voltage and current through the entire SSD1303 controller voltage and current. The entire system needs 3.3V and 12V power supply, MCU (paper, C8051F023) requires a supply voltage of 3.3V, OLED requires 3.3V logic supply voltage and a driving power supply 9 ~ 12V, the voltage of the driving power from an external power converter circuits.