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//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // // UG-2864ASYDT01 (2864-27E) // UG-2864ASYDT02 (2864-28E) // UG-2864ASYDT03 (2864-31E) // UG-2864ASYDT04 (2864-32E) // UG-2864ASYDT05 (2864-33E) // UG-2864ALBDT05 (2864-34E) Reference Code // // Dot Matrix: 128*64 // Driver IC : SSD1325 (Solomon Systech) // Interface : 8-bit 68XX/80XX Parallel, 4-wire SPI // Revision : // Date : 2007/11/25 // Author : // Editor : Humphrey Lin // // Copyright (c) Univision Technology Inc. // //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= #include <at89x51.h> //#define M68 // 8-bit 68XX Parallel // BS1=0; BS2=1 #define I80 // 8-bit 80XX Parallel // BS1=1; BS2=1 //#define SPI // 4-wire SPI // BS1=0; BS2=0 // The unused pins should be connected with VSS mostly or floating (D2). // Please refer to the SSD1329 specification for detail. //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // Pin Definition //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= #define xData P1 // Parallel Data Input #define SCLK P1_0 // Serial Clock Input #define SDIN P1_1 // Serial Data Input #define RES P3_3 // Reset #define CS P3_4 // Chip Select #define DC P3_2 // Data/Command Control #define E P3_0 // Read/Write Enable #define RW P3_1 // Read/Write Select #define RD P3_0 // Read Signal #define WR P3_1 // Write Signal //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // Delay Time //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= void uDelay(unsigned char l) { while(l--); } void Delay(unsigned char n) { unsigned char i,j,k; for(k=0;k<n;k++) { for(i=0;i<131;i++) { for(j=0;j<15;j++) { uDelay(203); } } } } //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // Read/Write Sequence //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= #ifdef M68 // 8-bit 68XX Parallel void Write_Command(unsigned char Data) { DC=0; CS=0; RW=0; E=1; xData=Data; E=0; RW=1; CS=1; DC=1; } void Write_Data(unsigned char Data) { DC=1; CS=0; RW=0; E=1; xData=Data; E=0; RW=1; CS=1; DC=1; } #endif #ifdef I80 void Write_Command(unsigned char Data) { DC=0; CS=0; WR=0; xData=Data; WR=1; CS=1; DC=1; } void Write_Data(unsigned char Data) { DC=1; CS=0; WR=0; xData=Data; WR=1; CS=1; DC=1; } #endif #ifdef SPI void Write_Command(unsigned char Data) { unsigned char i; CS=0; DC=0; for (i=0; i<8; i++) { SCLK=0; SDIN=(Data&0x80)>>7; Data = Data << 1; // uDelay(1); SCLK=1; // uDelay(1); } // SCLK=0; DC=1; CS=1; } void Write_Data(unsigned char Data) { unsigned char i; CS=0; DC=1; for (i=0; i<8; i++) { SCLK=0; SDIN=(Data&0x80)>>7; Data = Data << 1; // uDelay(1); SCLK=1; // uDelay(1); } // SCLK=0; DC=1; CS=1; } #endif //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // Instruction Setting //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= void Set_Column_Address(unsigned char a, unsigned char b) { Write_Command(0x15); // Set Column Address Write_Command(a); // Default => 0x00 Write_Command(b); // Default => 0x3F (Total Columns Devided by 2) } void Set_Row_Address(unsigned char a, unsigned char b) { Write_Command(0x75); // Set Row Address Write_Command(a); // Default => 0x00 Write_Command(b); // Default => 0x4F } void Set_Contrast_Current(unsigned char d) { Write_Command(0x81); // Set Contrast Value Write_Command(d); // Default => 0x40 } void Set_Current_Range(unsigned char d) { Write_Command(0x84|d); // Set Current Range // Default => 0x84 // 0x84 (0x00) => Quarter Current Range // 0x85 (0x01) => Half Current Range // 0x86 (0x02) => Full Current Range } void Set_Remap_Format(unsigned char d) { Write_Command(0xA0); // Set Re-Map & Data Format Write_Command(d); // Default => 0x00 // Column Address 0 Mapped to SEG0 // Disable Nibble Re-Map // Horizontal Address Increment // Scan from COM0 to COM[N-1] // Disable COM Split Odd Even } void Set_Start_Line(unsigned char d) { Write_Command(0xA1); // Set Display Start Line Write_Command(d); // Default => 0x00 } void Set_Display_Offset(unsigned char d) { Write_Command(0xA2); // Set Display Offset Write_Command(d); // Default => 0x00 } void Set_Display_Mode(unsigned char d) { Write_Command(0xA4|d); // Set Display Mode // Default => 0xA4 // 0xA4 (0x00) => Normal Display // 0xA5 (0x01) => Entire Display On, All Pixels Turn On at GS Level 15 // 0xA6 (0x02) => Entire Display Off, All Pixels Turn Off // 0xA7 (0x03) => Inverse Display } void Set_Multiplex_Ratio(unsigned char d) { Write_Command(0xA8); // Set Multiplex Ratio Write_Command(d); // Default => 0x5F } void Set_Master_Config(unsigned char d) { Write_Command(0xAD); // Set Master Configuration Write_Command(0x02|d); // Default => 0x03 // 0x02 (0x00) => Select External VCC Supply // 0x03 (0x01) => Select Internal DC/DC Voltage Converter } void Set_Display_On_Off(unsigned char d) { Write_Command(0xAE|d); // Set Display On/Off // Default => 0xAE // 0xAE (0x00) => Display Off // 0xAF (0x01) => Display On } void Set_Phase_Length(unsigned char d) { Write_Command(0xB1); // Phase 1 & 2 Period Adjustment Write_Command(d); // Default => 0x53 (5 Display Clocks [Phase 2] / 3 Display Clocks [Phase 1]) // D[3:0] => Phase 1 Period in 1~15 Display Clocks // D[7:4] => Phase 2 Period in 1~15 Display Clocks } void Set_Frame_Frequency(unsigned char d) { Write_Command(0xB2); // Set Frame Frequency (Row Period) Write_Command(d); // Default => 0x25 (37 Display Clocks) } void Set_Display_Clock(unsigned char d) { Write_Command(0xB3); // Display Clock Divider/Osciallator Frequency Write_Command(d); // Default => 0x41 // D[3:0] => Display Clock Divider // D[7:4] => Oscillator Frequency } void Set_Precharge_Compensation(unsigned char a, unsigned char b) { Write_Command(0xB4); // Set Pre-Charge Compensation Level Write_Command(b); // Default => 0x00 (No Compensation) if(a == 0x20) { Write_Command(0xB0); // Set Pre-Charge Compensation Enable Write_Command(0x08|a); // Default => 0x08 // 0x08 (0x00) => Disable Pre-Charge Compensation // 0x28 (0x20) => Enable Pre-Charge Compensation } } void Set_Precharge_Voltage(unsigned char d) { Write_Command(0xBC); // Set Pre-Charge Voltage Level Write_Command(d); // Default => 0x10 (Connect to VCOMH) } void Set_VCOMH(unsigned char d) { Write_Command(0xBE); // Set Output Level High Voltage for COM Signal Write_Command(d); // Default => 0x1D (0.81*VREF) } void Set_VSL(unsigned char d) { Write_Command(0xBF); // Set Segment Low Voltage Level Write_Command(0x02|d); // Default => 0x0E // 0x02 (0x00) => Keep VSL Pin Floating // 0x0E (0x0C) => Connect a Capacitor between VSL Pin & VSS } void Set_NOP() { Write_Command(0xE3); // Command for No Operation } //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= // Global Variables //=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= #define Max