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| www..com UG-2828GFECF01 Application note Evaluation Kit User Guide Writer: Simon. Lee Email: simon_lee@univision.com.tw Version: Preliminary REVISION HISTORY Date 2005/09/23 Page Contents Preliminary Version Preliminary w w w EVK Schematic www..com Symbol define D0-D8These pins are 9-bit bi-directional data bus to be connected to the MCU's data bus. BS1,BS2,BS3These input pins are used to configure MCU interface selection by appropriate logic setting, which is described in the following table. User can fixed these pins by jump (J3, J4). Unlike BS0~2 are can control by hardware, BS3 is control by software command 0xA0 only.BS0 has already fixed to GND. www..com Table 1 - MCU Interface Selection Setting E/RD# This pin is MCU interface input. When interfacing to a 6800-series microprocessor, this pin will be used as the Enable (E) signal. Read/write operation is initiated when this pin is pulled high and the chip is selected. When connecting to an 8080-microprocessor, this pin receives the Read (RD) signal. Data read operation is initiated when this pin is pulled low and the chip is selected. When serial interface is selected, this pin E(RD) must be connected to VSS. R/W#This pin is MCU interface input. When interfacing to a 6800-series microprocessor, this pin will be used as Read/Write (R/W) selection input. Read mode will be carried out when this pin is pulled high and write mode when low. When 8080 interface mode is selected, this pin will be the Write (WR) input. Data write operation is initiated when this pin is pulled low and the chip is selected. When serial interface is selected, this pin R/W must be connected to VSS. D/C#This pin is Data/Command control pin. When the pin is pulled high, the data at D0-D17 is treated as display data. When the pin is pulled low, the data at D0-D17 will be transferred to the command register. For detail relationship to MCU interface signals, please refer to the timing characteristics diagrams at following pages and datasheet. RES#This pin is reset signal input. When the pin is low, initialization of the chip is executed. www..com CS#This pin is the chip select input. The chip is enabled for MCU communication only when CS is pulled low. VCCThis is the most positive voltage supply pin of the chip. VDDPower supply pin for logic operation of the driver. GNDPower supply ground. VDD = 2.4 to 3.5V, TA = -40 to 85C www..com Table 2 6800-Series MPU Parallel Interface Timing Characteristics Figure 1 6800-series MPU parallel interface characteristics NoteWhen 9 bit used: D0 ~ D8 instead. VDD = 2.4 to 3.5V, TA = -40 to 85C www..com Table 3 8080-Series MPU Parallel Interface Timing Characteristics Figure 2 8080-series MPU parallel interface characteristics NoteWhen 9 bit used: D0 ~ D8 instead. VDD = 2.4 to 3.5V, TA = -40 to 85C www..com Table 4 Serial Interface Timing Characteristics Figure 3 Serial interface characteristics www..com Figure 4 EVK PCB and OLED Module Figure 5 the module and EVK assembled (Top view) Because the package of UG-2828GFECF01 is COF, that the connect pads are on the top of the module, and the connector which on the EVK PCB board is double size connect type. So when assemble the module with EVK. The module must face up first and plug into the connector. When finished assembled the module and EVK, then push the locking pad to lock the module. See the figure 5. When finished assembled the module and EVK. User can use leading wire to connect EVK with customer's system. The example shows as figure 6. www..com Note1 Figure 7 control MCU connect with EVK Note 1It is the external most positive voltage supply. In this sample is connected to power supply. How to use UG-2828GFECF01 Reset set www..com RES#=0 Delay 10ms RES#=1 Initial IC code Suggest all register set again Display on Clear RAM Start send data RD recommends Initial Code: void Initial_ic(void) { IOCLR=0xffffffff; //data=0 IOSET=bE_RD; IOCLR=bD_C|bR_W|bCS; Reset_SSD1339(); write_c(0xa0); write_d(0xb4); write_c(0xa1); write_d(0x00); write_c(0xa2); write_d(0x80); write_c(0xA6); write_c(0xad); write_d(0x8e); write_c(0xb0); write_d(0x05); write_c(0xb1); write_d(0x11); write_c(0xb3); write_d(0xf0); write_c(0xbb); write_d(0x1c); write_d(0x1c); write_d(0x1c); write_c(0xbe); write_d(0x1f); write_c(0xc1); write_d(0xaa); write_d(0xb4); write_d(0xc8); write_c(0xc7); write_d(0x0f); write_c(0xca); write_d(0x7f); write_c(0xaf); } void Reset_SSD1339(void) { IOCLR=bRES; Delay_1ms(100); IOSET=bRES; } void write_c(unsigned char out_command) { IOCLR=bD_C; IOCLR=bCS; IOCLR=bR_W; IOCLR=0x000000ff; IOSET=out_command; IOSET=bR_W; IOSET=bCS; IOSET=bD_C; } // Set Re-map / Color Depth // 262K 8bit R->G->B // Set display start line // 00h start // Set display offset // 80h start // Normal display // Set Master Configuration // DC-DC off & external VcomH voltage & external pre-charge voltage // Power saving mode // Set pre & dis_charge // pre=1h dis=1h // clock & frequency // clock=Divser+1 frequency=fh // Set pre-charge voltage of color A B C // color A // color B // color C // Set VcomH // // Set contrast current for A B C // Color A // Color B // Color C // Set master contrast // no change // Duty // 127+1 // Display on www..com void write_d(unsigned char out_data) { IOSET=bD_C; IOCLR=bCS; IOCLR=bR_W; IOCLR=0x000000ff; IOSET=out_data; IOSET=bR_W; IOSET=bCS; } void Delay_1ms(int Cycle) www..com { unsigned int i,k; for (i=0 ;i |
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