2. SPC SERIAL LCD EXTERNAL SPECIFICATION

Transcription

1 Smart Peripheral Controller Quick Start Trademarks & Copyright XT, AT, IBM, PC, and PC-DOS are trademarks of International Business Machines Corp. MS-DOS is a registered trademark of Microsoft Corporation. Pentium is a registered trademark of Intel Corporation. MetaLink ASM51 is copyright by MetaLink Corporation 1. INTRODUCTION Smart Peripheral Controller / SPC SERIAL LCD is CHARACTER LCD module controller which support 3 kind of communication lines that is I 2 C-bus, Synchronous Serial, or Universal Asynchronous Receiver/Transmitter (UART). The data communication protocols work serially so they take less cost and easy in cabling. Applications of SPC SERIAL LCD for examples are character monitor, display, etc. Complete sources and manual is in the Disk. 2. SPC SERIAL LCD EXTERNAL SPECIFICATION SPC SERIAL LCD has following external specification: Fully Compatible with DT-51 Minimum System Ver 3.0. Only needing 2 cable line for interface with microprocessor / other mikrokontroler. Can be use with I 2 C-bus, Synchronous Serial, and UART. Synchronous Serial work with TTL level. UART work with TTL or RS-232 level. Equiped with jumper for address setting, so it can be expanded up to 8 boards without additional hardware (I 2 C and Synchronous Serial). Compatible up to 40 x 2 LCD Module with HD44780 compatible driver. There are ready for use procedures for SPC SERIAL LCD applications. SPC SERIAL LCD Variant: - 8 x 2 LCD, without backlight - 16 x 2 LCD, with backlight - 20 x 2 LCD, with backlight - 20 x 2 Large LCD, with backlight - 20 x 4 LCD, with backlight - 24 x 2 LCD, with backlight - 40 x 2 LCD, with backlight 3. SPC SERIAL LCD VARIANT DDRAM ADDRESS 8 x 2 00H. 07H 40H. 47H 16 x 2 0FH 4FH 20 x 2 13H 53H 24 x 2 17H 57H 40 x 2 27H 67H 1

2 20 x 4 00H 13H 40H 53H 14H 27H 54H 67H 4. SYSTEM REQUIREMENTS Hardware: PC XT / AT Pentium IBM Compatible with Serial Port (COM1 / COM2). DT-51 Minimum System Board. Floppy Disk or CD-ROM Drive. Minimum 500 KB free hard disk space. Software: MS-DOS, PC-DOS operating system. ASM51 Assembler. Files in Disk/CD: EXPL_I2C.ASM, EXPL_I2C.HEX, EXPL_SS.ASM, EXPL_SS.HEX, LCDCHAR.INC, ENG_I2C.INC, ENG_SS.INC, SPC SERIAL LCD MANUAL.PDF, SPC SERIAL LCD QUICK START.PDF, and LCD MANUAL. 5. SPC SERIAL LCD HARDWARE 5.1. SPC SERIAL LCD LAYOUT 5.2. DT-51 MINIMUM SYSTEM AND SPC SERIAL LCD CONNECTION SPC SERIAL LCD is a Smart system. Beside can be connected with DT-51 Minimum System or with microprocessor system / other microcontroller, SPC SERIAL LCD can be connected also with computer. If you wish to connect SPC SERIAL LCD with other system we suggest you to study SPC SERIAL LCD schematic (see appendix A on SPC SERIAL LCD Manual). To connect SPC SERIAL LCD with DT-51 Minimum System, we recommend you to use flat ribbon cable. Connection by I 2 C-bus shown on the following table: I 2 C Bus DT-51 Minimum System PORT C & PORT 1 SPC SERIAL LCD J6 SCL Pin 15 (Port 1.6) Pin 15 SDA Pin 16 (Port 1.7) Pin 16 J2 Jumper (SCL/SDA) use for SDA (I 2 C-bus data input / output) and SCL (I 2 C-bus clock input) pull up resistor. 2

3 Important! If more than one SPC SERIAL LCD board are connected to I 2 C-bus, then only one of the boards J2 jumper (SCL/SDA) need to be mount. Connection by Synchronous Serial bus shown on the following table: Synch Serial Bus DT-51 Minimum System PORT C & PORT 1 SPC SERIAL LCD J4 SerIn Pin 13 (Port 1.4) SerIn (Pin 3) SerClk Pin 14 (Port 1.5) SerClk (Pin 2) J12 Jumper use for SerIn (Synchronous Serial bus data input / output), SerClk (Synchronous Serial bus clock input), and SerClr (Synchronous Serial bus reset) pull up resistor. Important! If more than one SPC SERIAL LCD board are connected to Synchronous Serial bus, then only one of the boards J12 jumper (SerIn, SerClk, dan SerClr) need to be mount. 5V DC power supply connected with J5 connector (Power). Pay Attention on the polarity. Don't inversed, because it can cause damage. Important! Ground (GND) reference between SPC SERIAL LCD module and DT-51 Minimum System must be the same COMPUTER AND SPC SERIAL LCD CONNECTION SPC SERIAL LCD provided direct interface with computer serial port. The connection shown on the following table: Serial/COM Port Pin 5 (GND) Pin 3 (TX) Pin 2 (RX) SPC SERIAL LCD J14 Pin 1 (GND) Pin 4 (TX) Pin 3 (RX) 5.4. BUZZER AND SPC SERIAL LCD CONNECTION SPC SERIAL LCD provide connector to buzzer which will buzz if ASCII code 7Fh sent to SPC SERIAL LCD. Buzzer condition is toggle. First sent will buzz the buzzer and second sent will turn off the buzzer. Buzzer connection is as follow: Buzzer SPC SERIAL LCD J13 Pin + Pin 2 Pin - Pin UART / SYNCHRONOUS SERIAL JUMPER SETTING Synchronous Serial and UART cannot be use both in the same time. To select Synchronous Serial or UART change J9, J10, J11 jumpers setting 3

4 J10-J11 J9 Communication Line Connector Synchronous Serial J4 1 UART TTL J4 1 UART RS-232 Note: => jumper mount (ON) => jumper unmount (OFF) Jumper orientation according to figure on section 5.1 J14 J4 connector can be use as UART TTL or Synchronous Serial interface. SPC SERIAL LCD connector J4 UART TTL Synchronous Serial Pin 1 Not Used SerClr Pin 2 TX (out) SerClk Pin 3 RX (in) SerIn 5.6. PROGRAMMED ADDRESS JUMPER SETTING Programmed Address on each SPC SERIAL LCD board determined by J3 Jumper Setting. J3 (A2) J3 (A1) J3(A0) Programmed Address (default) 111 Note: : jumper mount (ON) 5.7. SPC SERIAL LCD EXPANSION SPC SERIAL LCD can be expanded up to 8 boards. A few things need to be considered if using more than one SPC SERIAL LCD board: Every board must have a different programmed address determined by J3 jumper (A0/A1/A2). If more than one SPC SERIAL LCD board are connected to I 2 C-bus, then only one of the boards J2 jumper (SCL/SDA) need to be mount. If more than one SPC SERIAL LCD board are connected to Synchronous Serial bus, then only one of the boards J12 jumper (SerIn, SerClk, dan SerClr) need to be mount TESTING SPC SERIAL LCD WITH EXPL_I2C.HEX Hardware Setting Connect DT-51 Minimum System with SPC SERIAL LCD (see section 2.2) through I 2 C- bus. Connect DT-51 MinSys serial port and computer COM1/COM2 using serial cable. 4

5 Set SPC SERIAL LCD address to 7th programmed address (default, see section 2.6). Download Expl_I2C.HEX located in the disk Expl_I2C Program Process After program downloaded, INNOVATIVE word will appear on LCD first row and ELECTRONICS on second row. After delay a moment, LCD screen will be cleared and characters in the ROM character generator table will be displayed in sequences starting from LCD first row and first column TESTING SPC SERIAL LCD WITH EXPL_SS.HEX Hardware Setting Connect DT-51 Minimum System with SPC SERIAL LCD (see section 2.2) through Synchronous Serial bus. Arranged jumper setting, so communication line used is Synchronous Serial. (seet section 2.5) Connect DT-51 MinSys serial port and computer COM1/COM2 using serial cable. Set SPC SERIAL LCD address to 7th programmed address (default, see section 2.6). Download Expl_SS.HEX located in the disk Expl_SS Program Process After program downloaded, INNOVATIVE word will appear on LCD first row and ELECTRONICS on second row. After delay a moment, LCD screen will be cleared and characters in the character generator ROM table will be displayed in sequences starting from LCD first row and first column. 6. SPC SERIAL LCD SOFTWARE Time needed by SPC SERIAL LCD from power up until ready to operate (Start-up Time) = 600 ms. Please Read LCD manual contained in the disk as reference for character generator ROM code table (for WriteSingle and WriteString routine) and LCD instruction table (for CommandLCD routine) I 2 C-BUS ADDRESSING Register used for addresing: AddressI2C Communication using I 2 C-bus always started by address. Address divided into three part: fixed address, programmed address, and Read/Write (R/W). SPC SERIAL LCD always use fixed address 1110, Read/Write (R/W) value 1 if I 2 C Master (DT-51 MinSys / other microcontroller) want to read data from I 2 C Slave (SPC SERIAL LCD) and value 0, if I 2 C Master want to write data to I 2 C Slave, programmed address use for giving address to SPC module according to user wish. Programmed address arranged by changing jumper setting (see section 5.6), so the same I 2 C line with same fixed address ( 1110 ) can be use by 8 module in the same time by differentiate programmed address Command 5

6 m3 m2 m1 m0 Mode Control Write Single Character Write Multiple Character Locate DDRAM Locate CGRAM Set Contrast Read Data DDRAM Read Data CGRAM Read Address DDRAM Read Address CGRAM Command LCD Not Used 1 1 X X Not Used Command contain mode, which use for choosing next command to device according with the selected mode. Command has 16 mode possibilities, but on SPC SERIAL LCD only the first 11 modes used Control Register used for Control Mode: OutControl Control use for arrange LCD display. After sending control command, send control data which contain bit for setting Back Light (BL), Display/Cursor Shift (D/C), Shift Left (L), Shift Right (R), cursor movement Direction (Dir), Display On/Off (Dis), Cursor On/Off (Cur), and Cursor Blink (Blk). Control Data have the following rule: BL = 1 : Back Light On BL = 0 : Back Light Off D/C = 1 : Display Shift D/C = 0 : Cursor Shift L R = 00 : No Shift L R = 01 : Shift Right L R = 10 : Shift Left L R = 11 : No Shift Dir = 1 : Increment Dir = 0 : Decrement Dis = 1 : Display On Dis = 0 : Display Off Cur = 1 : Cursor On Cur = 0 : Cursor Off Blk = 1 : Blink On Blk = 0 : Blink Off Write Single Character Register used for Write Single Character Mode: OutCharacter Write Single Character use for writing a single character to LCD Write Multiple Character 6

7 Register used for Write Multiple Char Mode: Data Pointer (DPTR) Write Multiple Character use for writing a string or chain of character to LCD. Mode Write Multiple Character ended by sending Null ( 00h ) data to slave Locate DDRAM Register used for Locate DDRAM Mode: OutKolom dan OutBaris Locate DDRAM use for arranging cursor position on DDRAM or LCD display screen Locate CGRAM Register used for Locate CGRAM Mode: OutCursorCGRAM Locate CGRAM use for arranging cursor position on CGRAM Set Contrast Register used for Set Contrast Mode: OutContrast Set Contrast use for adjusting LCD contrast. After sending Set Contrast command followed with contrast data. Contrast data range is between 0 20 desimal (00H 14H). The greater the value, character will be fader Read Data DDRAM Register used for Read Data DDRAM Mode: InDataDDRAM Read Data DDRAM use for reading DDRAM data pointed by cursor. After this command, cursor position will be on DDRAM Read Data CGRAM Register used for Read Data CGRAM Mode: InDataCGRAM 7

8 Read Data CGRAM use for reading CGRAM data pointed by cursor. After this command, cursor position will be on CGRAM Read Address DDRAM Register used for Read Address DDRAM Mode: InAddrDDRAM Read Address DDRAM use for read current DDRAM cursor position. This Command will not affect cursor position Read Address CGRAM Register used for Read Address CGRAM Mode: InAddrCGRAM Read Address CGRAM use for read current CGRAM cursor position. This command will not affect cursor position Command LCD Register used for Command LCD Mode: OutCommand Command LCD use for send an instruction to LCD module according with LCD manual SYNCHRONOUS SERIAL-BUS ADDRESING Communication using Synchronous Serial-bus always started by address. Address divided into two parts: programmed address, and working mode or command. Programmed address use for giving address to SPC module according to user wish. Programmed address arranged by changing jumper setting (see section 5.6), so the same Synchronous Serial line can be use by 8 module in the same time by differentiate programmed address Command m4 m3 m2 m1 m0 Mode Control Write Single Character Write Multiple Character Locate DDRAM Locate CGRAM Set Contrast 8

9 Read Data DDRAM Read Data CGRAM Read Address DDRAM Read Address CGRAM Command LCD Not Used X X Not Used 1 X X X X Not Used Address contain mode, which use for choosing next command to device according with the selected mode Control Register used for Control Mode: OutControl Control use for arrange LCD display. After sending control command, send control data which contain bit for setting Back Light (BL), Display/Cursor Shift (D/C), Shift Left (L), Shift Right (R), cursor movement Direction (Dir), Display On/Off (Dis), Cursor On/Off (Cur), and Cursor Blink (Blk). Control Data have the following rule: BL = 1 : Back Light On BL = 0 : Back Light Off D/C = 1 : Display Shift D/C = 0 : Cursor Shift L R = 00 : No Shift L R = 01 : Shift Right L R = 10 : Shift Left L R = 11 : No Shift Dir = 1 : Increment Dir = 0 : Decrement Dis = 1 : Display On Dis = 0 : Display Off Cur = 1 : Cursor On Cur = 0 : Cursor Off Blk = 1 : Blink On Blk = 0 : Blink Off Write Single Character Register used for Write Single Character Mode: OutCharacter Write Single Character use for writing a single character to LCD Write Multiple Character Register used for Write Multiple Char Mode: Data Pointer (DPTR) Write Multiple Character use for writing a string or chain of character to LCD. Mode Write Multiple Character ended by sending Null ( 00h ) data to slave. 9

10 Locate DDRAM Register used for Locate DDRAM Mode: OutKolom dan OutBaris Locate DDRAM use for arranging cursor position on DDRAM or LCD display screen Locate CGRAM Register used for Locate CGRAM Mode: OutCursorCGRAM Locate CGRAM use for arranging cursor position on CGRAM Set Contrast Register used for Set Contrast Mode: OutContrast Set Contrast use for adjusting LCD contrast. After sending Set Contrast command followed with contrast data. Contrast data range is between 0 20 desimal (00H 14H). The greater the value, character will be fader Read Data DDRAM Register used for Read Data DDRAM Mode: InDataDDRAM Read Data DDRAM use for reading DDRAM data pointed by cursor. After this command, cursor position will be on DDRAM Read Data CGRAM Register used for Read Data CGRAM Mode: InDataCGRAM Read Data CGRAM use for reading CGRAM data pointed by cursor. After this command, cursor position will be on CGRAM. 10

11 Read Address DDRAM Register used for Read Address DDRAM Mode: InAddrDDRAM Read Address DDRAM use for read current DDRAM cursor position. This Command will not affect cursor position Read Address CGRAM Register used for Read Address CGRAM Mode: InAddrCGRAM Read Address CGRAM use for read current CGRAM cursor position. This command will not affect cursor position Command LCD Register used for Command LCD Mode: OutCommand Command LCD use for send an instruction to LCD module according with LCD manual UART SPECIFICATION UART communication line works with Baud Rate 9600 bps, 8 Data Bit, No Parity Bit, 1 Stop Bit, And No Flow Control. When UART communication line active, SPC SERIAL LCD function as data monitor going through UART line. Every data that come in will be displayed on LCD screen according with character generator ROM pattern table on LCD manual, except command opening character (see section 6.3.1) and command. SPC SERIAL LCD with UART communication line also support special command such as: clear screen (Ctrl-L) or 0Ch, line feed (Enter) or 0Dh Command All Command on UART communication always started by sending data byte with FEh value, which then follow with sending command mode. Time needed by SPC SERIAL LCD after WriteSingle & Read process until its ready to accept another command = 250 µs. Time needed by SPC SERIAL LCD after Command LCD mode until its ready to accept another command = 500 µs Command Mode m4 m3 m2 m1 m0 Mode Control Not Used Write Multiple Character 11

12 Locate DDRAM Locate CGRAM Set Contrast Read Data DDRAM Read Data CGRAM Read Address DDRAM Read Address CGRAM Command LCD Not Used X X Not Used 1 X X X X Not Used Command contain mode, which use for choosing next command to device according with the selected mode Control Control use for arrange LCD display. After sending control command, send control data which contain bit for setting Back Light (BL), Display/Cursor Shift (D/C), Shift Left (L), Shift Right (R), cursor movement Direction (Dir), Display On/Off (Dis), Cursor On/Off (Cur), and Cursor Blink (Blk). Control Data have the following rule: BL = 1 : Back Light On BL = 0 : Back Light Off D/C = 1 : Display Shift D/C = 0 : Cursor Shift L R = 00 : No Shift L R = 01 : Shift Right L R = 10 : Shift Left L R = 11 : No Shift Dir = 1 : Increment Dir = 0 : Decrement Dis = 1 : Display On Dis = 0 : Display Off Cur = 1 : Cursor On Cur = 0 : Cursor Off Blk = 1 : Blink On Blk = 0 : Blink Off Write Multiple Character Write Multiple Character use for writing a string or chain of character to LCD. Mode Write Multiple Character ended by sending Null ( 00h ) data to slave Locate DDRAM Locate DDRAM use for arranging cursor position on DDRAM or LCD display screen. 12

13 Locate CGRAM Locate CGRAM use for arranging cursor position on CGRAM Set Contrast Set Contrast use for adjusting LCD contrast. After sending Set Contrast command followed with contrast data. Contrast data range is between 0 20 desimal (00H 14H). The greater the value, character will be fader Read Data DDRAM Read Data DDRAM use for reading DDRAM data pointed by cursor. After this command, cursor position will be on DDRAM Read Data CGRAM Read Data CGRAM use for reading CGRAM data pointed by cursor. After this command, cursor position will be on CGRAM Read Address DDRAM Read Address DDRAM use for read current DDRAM cursor position. This Command will not affect cursor position Read Address CGRAM Read Address CGRAM use for read current CGRAM cursor position. This command will not affect cursor position Command LCD Command LCD use for send an instruction to LCD module according with LCD manual. 13

14 6.4. DRIVER AND ROUTINE SPC SERIAL LCD equipped with ENG_I2C.INC, ENG_SS.INC, and LCDChar.INC module, which will help user in programming. SPC SERIAL LCD use 89C51 microcontroller resources as follow: Internal RAM with address 2Eh 3Fh P1.6 and P1.7 P1.4 and P1.5 So they may not be use by user for other purpose, except user able to modify memory arrangement correctly. The following are routines that can be use: K10_Control Function : send control data to arrange LCD display SPC SERIAL LCD through I 2 C- bus. : AddressI2C, OutControl (contain control data) Method : Fill control data value to OutControl register as needed, and then call K10_Control sub-routine to send data through I 2 C. K10_WriteSingle Function : write a single character on current cursor position on SPC SERIAL LCD through I 2 C-bus. : AddressI2C, OutCharacter (contain character data) Method : Move cursor location to desired position with LocateDDRAM or LocateCGRAM command. Fill character data value to OutCharacter register as needed according with character generator ROM pattern table on LCD manual, and then call K10_WriteSingle sub-routine to send data through I 2 C. K10_WriteString Function : write a string or chain of character to SPC SERIAL LCD through I 2 C-bus. : AddressI2C, DPTR (contain pointer to first string data) Data String must be ended with Null ( 00h ) data. Method : Move cursor location to desired position with LocateDDRAM or LocateCGRAM command. Fill pointer to first string data to Data Pointer register as needed, and then call K10_WriteString sub-routine to send data through I 2 C. K10_LocateDDRAM Function : arrange cursor position on DDRAM or LCD display screen on SPC SERIAL LCD through I 2 C-bus. : AddressI2C, OutKolom (contain column data) & OutBaris (contai row data) Valid OutBaris value = 01H or 02H. Valid OutKolom value = 00H to 27H. Method : Fill column data to OutKolom and row data to OutBaris register as needed, and then call K10_LocateDDRAM sub-routine to send data through I 2 C. 14

15 K10_LocateCGRAM Function : arrange cursor position on CGRAM on SPC SERIAL LCD through I 2 C- bus. : AddressI2C, OutCursorCGRAM (contain CGRAM cursor position) Method : Fill position value to OutCursorCGRAM register as needed, and then call K10_LocateCGRAM sub-routine to send data through I 2 C. K10_SetContrast Function : send contrast data to adjust LCD contrast on SPC SERIAL LCD through I 2 C-bus. : AddressI2C, OutContrast (contai contrast data) Valid OutContrast value = 00H 14H. Method : Fill contrast data to OutContrast register as needed, and then call K10_SetContrast sub-routine to send data through I 2 C. K10_ReadDDRAMData Function : read DDRAM data pointed by cursor on SPC SERIAL LCD through I 2 C- bus. : AddressI2C Output : InDataDDRAM (contain DDRAM data) Method : Call K10_ReadDDRAMData sub-routine, DDRAM data on current cursor position will be save in InDataDDRAM register. After this command, cursor position will be on DDRAM. K10_ReadCGRAMData Function : read CGRAM data pointed by cursor on SPC SERIAL LCD through I 2 C- bus. : AddressI2C Output : InDataCGRAM (contain CGRAM data) Method : Call K10_ReadCGRAMData, sub-routine, CGRAM data on current cursor position will be save in InDataCGRAM register. After this command, cursor position will be on CGRAM. K10_ReadDDRAMAddr Function : read current DDRAM cursor position on SPC SERIAL LCD through I 2 C- bus. : AddressI2C Output : InAddrDDRAM (contain current DDRAM cursor position) Method : Call K10_ReadDDRAMAddr sub-routine, DDRAM cursor position will be save in InAddrDDRAM register. This command will not affect cursor position. K10_ReadCGRAMAddr Function : read current CGRAM cursor position on SPC SERIAL LCD through I 2 C- bus. : AddressI2C Output : InAddrCGRAM (contain current CGRAM cursor position) 15

16 Method : Call K10_ReadCGRAMAddr sub-routine, CGRAM cursor position will be save in InAddrCGRAM register. This command will not affect cursor position. K10_CommandLCD Function : mengirimkan instruksi ke modul LCD sesuai dengan tabel instruksi manual LCD pada SPC SERIAL LCD through I 2 C-bus. : AddressI2C, OutCommand (contain LCD command data) Method : Berikan nilai data command seusai dengan tabel instruksi manual LCD sesuai dengan kebutuhan pada Register OutCommand register as needed, and then call K10_CommandLCD sub-routine to send data through I 2 C. K10_Control_SS Function : send control data to arrange LCD display SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutControl (contain control data) Method : Fill control data value to OutControl register as needed, and then call K10_Control_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_WriteSingle_SS Function : write a single character on current cursor position on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutCharacter (contain character data) Method : Move cursor location to desired position with LocateDDRAM or LocateCGRAM command. Fill character data value to OutCharacter register as needed according with character generator ROM pattern table on LCD manual, and then call K10_WriteSingle_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_WriteString_SS Function : write a string or chain of character to SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, DPTR (contain pointer to first string data) Data String must be ended with Null ( 00h ) data. Method : Move cursor location to desired position with LocateDDRAM or LocateCGRAM command. Fill pointer to first string data to Data Pointer register as needed, and then call K10_WriteString_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_LocateDDRAM_SS Function : arrange cursor position on DDRAM or LCD display screen on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutKolom (contain column data) & OutBaris (contai row data) Valid OutBaris value = 01H or 02H. Valid OutKolom value = 00H to 27H. 16

17 Method : Fill column data to OutKolom and row data to OutBaris register as needed, and then call K10_LocateDDRAM_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_LocateCGRAM_SS Function : arrange cursor position on CGRAM on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutCursorCGRAM (contain CGRAM cursor position) Method : Fill position value to OutCursorCGRAM register as needed, and then call K10_LocateCGRAM_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_SetContrast_SS Function : send contrast data to adjust LCD contrast on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutContrast (contai contrast data) Valid OutContrast value = 00H 14H. Method : Fill contrast data to OutContrast register as needed, and then call K10_SetContrast_SS sub-routine to send data through SYNCHRONOUS SERIAL. K10_ReadDDRAMData_SS Function : read DDRAM data pointed by cursor on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS Output : InDataDDRAM (contain DDRAM data) Method : Call K10_ReadDDRAMData_SS sub-routine, DDRAM data on current cursor position will be save in InDataDDRAM register. After this command, cursor position will be on DDRAM. K10_ReadCGRAMData_SS Function : read CGRAM data pointed by cursor on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS Output : InDataCGRAM (contain CGRAM data) Method : Call K10_ReadCGRAMData_SS sub-routine, CGRAM data on current cursor position will be save in InDataCGRAM register. After this command, cursor position will be on CGRAM. K10_ReadDDRAMAddr_SS Function : read current DDRAM cursor position on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS Output : InAddrDDRAM (contain current DDRAM cursor position) Method : Call K10_ReadDDRAMAddr_SS sub-routine, DDRAM cursor position will be save in InAddrDDRAM register. This command will not affect cursor position. K10_ReadCGRAMAddr_SS Function : read current CGRAM cursor position on SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS Output : InAddrCGRAM (contain current CGRAM cursor position) 17

18 Method : Call K10_ReadCGRAMAddr_SS sub-routine, CGRAM cursor position will be save in InAddrCGRAM register. This command will not affect cursor position. K10_CommandLCD_SS Function : mengirimkan instruksi ke modul LCD sesuai dengan tabel instruksi manual LCD pada SPC SERIAL LCD through SYNCHRONOUS SERIAL-bus. : AddrSS, OutCommand (contain LCD command data) Method : Berikan nilai data command seusai dengan tabel instruksi manual LCD sesuai dengan kebutuhan pada Register OutCommand register as needed, and then call K10_CommandLCD_SS sub-routine to send data through SYNCHRONOUS SERIAL APPLICATION EXAMPLE AND PROGRAM If you want to display a string HELLO which has label String1 start at second row and fith column on LCD with I 2 C-bus or Synchronous Serial-bus, then registers that have to be fill and the program listing is as follow: Program Listing with I 2 C-bus: MOV AddresssI2C,# B ;for programmed address 111 MOV A,#2 ;fill row value MOV B,#4 ;fill column value ACALL K10_LocateDDRAM ;call LocateDDRAM routine MOV DPTR,#String1 ;fill label String1 pointer ;to Data Pointer ACALL K10_WriteString ;call WriteString routine... String1 db HELLO,0 Program Listing with Synchronous Serial-bus: MOV AddrSS,# B ;for programmed address 111 MOV A,#2 ;fill row value MOV B,#4 ;fill column value ACALL K10_LocateDDRAM_SS ;call LocateDDRAM_SS routine MOV DPTR,#String1 ;fill label String1 pointer ;to Data Pointer ACALL K10_WriteString_SS ;call WriteString_SS routine... String1 db HELLO, PROGRAM STRUCTURE For user who want to build SPC SERIAL LCD application program using available routine then the following 3 drivers must be included : ENG_I2C.INC, ENG_SS.INC and LCDChar.INC ENG_I2C.INC is a driver, which always be use for every Smart Peripheral Controller (SPC) application using I 2 C-bus. ENG_SS.INC is a driver, which always be use for every Smart Peripheral Controller (SPC) application using Synchronous Serial Bus. LCDChar.INC is a driver, which always be use for every Smart Peripheral Controller (SPC) application. 18

19 Programming structure of SPC SERIAL LCD using MetaLink ASM51 Assembler is as follow: ; ;TEMPLATE FILE FOR SPC SERIAL LCD ;WITH DT51-MINSYS ; $MOD51 CSEG ORG 4000H LJMP START ORG 4100H $INCLUDE(ENG_I2C.inc) ;DRIVER FOR EVERY SPC PRODUCT ;WITH I2C BUS $INCLUDE(ENG_SS.inc) ;DRIVER FOR EVERY SPC PRODUCT ;WITH Sync. Serial BUS $INCLUDE(LCDChar.inc) ; DRIVER FOR EVERY SPC ;Character LCD PRODUCT START: MOV SP, #40H. ;USER MAIN PROGRAM.. END Important! Some type of character LCD is not fully compatible with SPC SERIAL LCD. A few commands will generate miss match data. For example: A character reading with ReadDDRAMData command on 16 x 2 LCD (packaged with SPC SERIAL LCD) will generate data 41H. But on 24 x 2 LCD (packaged with SPC SERIAL LCD), data generated is 14H. Thank you for your trust to use our product. If there are any difficulty, suggestion or question concerning this product please contact our technical support: support@innovativeelectronics.com 19