solomon systech semiconductor technical data rev 0.1 08/2000 copyright ? 2000 solomon systech limited product information ssd1821z development kit dvk1821z-a1 is a demonstration of ssd1821z working on a (128 x 80 + 1 icon line) panel. it is intended to help users expedite their design-in of solomon lcd driver. package contents dvk1821z-a1 consists of the following: 1) lcd module (128 x 80 + 1 icon line) (dvm1821z-a0) 2) lcd drawing (optional) 3) programmed 8051 mcu board (evm89c52-a0) 4) 8051 mcu board schematics (evm89c52-a0) 5) demo program in c language (prg1821z-a1) system requirement dvk1821z-a1 is good enough to serve as a standalone demo. 2 x aa 1.5v battery is required for normal operation. for engineering evaluation on the lcd driver and/or lcd panel, a 8051 incircuit emulator (ice) is required. the one solomon systech is using is emmit 8051 ice from syber electronics co ltd. user can get its information from the email: syber@public1.pt lcd module table 1 DVM1821Z-A1pin assignment pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 lcd module v d d r e s p s 1 d / c r / w c s 1 v s s d 0 d 1 d 2 d 3 d 4 d 5 d 6 ( s c k ) d 7 ( s d a ) e n c v s s n c n c n c n c n c n c 8051 mcu board v o u t p a - 0 4 p a - 0 5 p a - 0 1 p a - 0 7 p a - 0 6 g n d p b - 0 0 p b - 0 1 p b - 0 2 p b - 0 3 p b - 0 4 p b - 0 5 p b - 0 6 p b - 0 7 p a - 0 0 v o u t g n d + 9 v p 3 4 p 3 5 p 3 6 p 3 7 n c dvk1821z-a1 figure 1 dvm1821z-a0 outlook the lcd module has been configured as follows 1) size: 128 x 80 + 1 icon line 2) cog package 3) 6x dc-dc converter to generate vee 4) internal feedback resistor which is software programmable is used to generate vl6. 5) serial interface (spi 4 pins). 6) 24 pins single inline (sil) header is used to connect 8051 mcu board to lcd module. please refer to table 1 for pin assignment. 7) dip sw 1-9 are to control the dc-dc conveter. sw 10 is the ps0 setting, trun on in spi mode. sw 11 & 12 are for internal testing only, please trun off for normal use. ordering information item ordering part number ssd1821z develop- ment kit dvk1821z-a1 ssd1821z develop- ment module dvm1821z-a0
2 solomon dvk1821z-a1 rev 0.1 08/2000 8051 mcu board the 8051 mcu board is powered up by 2 x aa 1.5v battery. a 2x dc con- verter (icl7660) is used to generate 4.8v to supply 8051 mcu. this voltage is also regulated by lm317 to generate vout (adjustable from 1.8v to 3.5v) which in turn powers up solomon lcd driver. all logic output from 8051 are down-converted from 4.8v to vout through 74hc4050 non-inverting buffer. user can change vout by tuning t1 (1k trimmer).the mcu board is configured to run at a speed of 12mhz. 4 dummy keys are reserved for developing user- interactive application such as tuning contrast. figure 2 evm89c52-a0 outlook figure 3 dvm1821z-a0 schematics
3 solomon dvk1821z-a1 rev 0.1 08/2000 programming note /*__________________________________________________________________________*/ /* prog: prg1821z-a1.c */ /* device: dvk1821z-a1 */ /* descp: 1821 demo in spi 4 pins (in 12mhz) */ /* lcm: 128x81 */ /* written by: tom tsang */ /* date: 2k0824 */ /* structure: a) hardware interface */ /* b) command table per device */ /* c) global variables definition */ /* d) hardcoded graphics */ /* e) function prototypes */ /* f) main function */ /* */ /* remark: ps0 is hardwire on dvm1821z-a0 by dip sw, ps1 is programable pin*/ /*__________________________________________________________________________*/ #include ?reg8751.h? #define controlport p0 #define dataport p1 /**************************************************** * a) hardware interface * * * * port a 7 6 5 4 3 2 1 0 * * rw cs ps1 res -- -- dc e * * * * e and ps may be tied high * * * * port b 7 6 5 4 3 2 1 0 * * d7 d6 d5 d4 d3 d2 d1 d0 * * sda sck * ****************************************************/ /**************************************************** * b) command table per device * ****************************************************/ #define displayoff 0xae #define displayon 0xaf #define displaystart 0x40 #define pageaddr 0xb0 #define coladdrhi 0x10 #define coladdrlo 0x00 #define segremapoff 0xa0 #define segremapon 0xa1 #define normaldisp 0xa6 #define reversedisp 0xa7 #define exitentired 0xa4 #define ententired 0xa5 #define enterrmw 0xe0 #define exitrmw 0xee #define swrest 0xe2 #define comremapoff 0xc0
4 solomon dvk1821z-a1 rev 0.1 08/2000 #define comremapon 0xc8 #define pwrctrlreg 0x28 #define opampbuffer 0x01 #define intreg 0x02 #define intvolbstr 0x04 #define intregratio 0x20 #define contctrlreg 0x81 #define cmdmuxratio 0x48 #define cmdbiasratio 0x50 #define dispoffset 0x44 #define iconmodeon 0xa3 #define iconmodeoff 0xa2 #define nlineinver 0x4c #define dcdcconver 0x64 #define powersavstandby 0xa8 #define powersavsleep 0xa9 #define powersavoff 0xe1 #define interosc 0xab #define device ssd1821 /* device under demo */ #define colno 128 /* number of column/seg on lcd glass*/ #define rowno 80 /* number of row/com/mux */ #define ps 1 /* fixed to parallel mode */ #define pageno 10 /* total no of ram pages */ #define iconpage 10 /* icon page number */ #define all0 6 /* 3 for all 0, 4 for all 1 */ #define all1 4 #define iintregvalue 4 /*internal regulator resistor ratio value */ #define icontctrlregvalue 27 /* contrast control register value */ #define msgno 16 #define msglength 22 #define sslnameno 4 #define devicepg 0 //ram page for showing device name #define featurepg 1 //ram page for showing feature #define graphicno 13 #define xlogo 38 #define ylogo 5 #define xsolomon 91 #define ysolomon 2 #define xsystech 81 #define ysystech 2 #define xlimited 70 #define ylimited 2 #define xcc 16 #define ycc 2 #define xpageq 128 #define ypageq 4 #define horizonal 0 #define d_time 60
5 solomon dvk1821z-a1 rev 0.1 08/2000 /**************************************************** * c) global variable definition * ****************************************************/ unsigned char wc_csh; unsigned char wc_csl; unsigned char wd_csh; unsigned char wd_csl; unsigned char res_csh; unsigned char res_csl; unsigned char rd_csh; unsigned char rd_csl; unsigned char rc_csh; unsigned char rc_csl; /**************************************************** * d) hardcoded graphics and string * ****************************************************/ unsigned char code npic1[64] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xe0, 0x1f, 0xf0, 0xf8, 0xf8, 0xfc, 0xfc, 0xfc, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfc, 0xfc, 0xfc, 0xf8, 0xf8, 0xf0, 0xf0, 0x1f, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } ; unsigned char code npic2[64] = { 0x80, 0x80, 0x80, 0x80, 0x80, 0x40, 0x60, 0x70, 0x78, 0x7e, 0x7e, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x80, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x80, 0x7f, 0x7f, 0x7f, 0x7f, 0x7e, 0x7e, 0x78, 0x70, 0x60, 0x40, 0x80, 0x80, 0x80, 0x80, 0x80 } ; unsigned char code npic3[64] = { 0x00, 0x80, 0xf0, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x1f, 0x1f, 0x0f, 0x07, 0x07, 0x03, 0x03, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x03, 0x03, 0x07, 0x07, 0x0f, 0x1f, 0x1f, 0x3f, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfc, 0xf0, 0x80, 0x00 } ; unsigned char code npic4[64] = { 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
6 solomon dvk1821z-a1 rev 0.1 08/2000 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x1f, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf8 } ; unsigned char code npic5[64] = { 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xfc, 0xe0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xfc, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f } ; unsigned char code npic6[64] = { 0x80, 0x81, 0x8f, 0xbf, 0xff, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x80, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7c, 0x7c, 0x78, 0x70, 0x70, 0x60, 0x60, 0x60, 0x40, 0x40, 0x40, 0x40, 0x40, 0x60, 0x60, 0x60, 0x60, 0x70, 0x78, 0x78, 0x7c, 0x7e, 0x7f, 0x7f, 0x7f, 0x7f, 0x80, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0xff, 0xbf, 0x8f, 0x81, 0x80 } ; unsigned char code npic7[64] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x07, 0x0f, 0x1f, 0x7f, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x7f, 0x1f, 0x0f, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00 } ; unsigned char code npic8[64] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x07, 0x07, 0xf8, 0x0f, 0x1f, 0x1f, 0x3f, 0x3f, 0x3f, 0x7f, 0x7f, 0x7f, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x7f, 0x7f, 0x7f, 0x3f, 0x3f, 0x3f, 0x1f, 0x1f, 0x0f, 0x0f, 0xf8, 0x07, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } ;
7 solomon dvk1821z-a1 rev 0.1 08/2000 /**************************************************** * e) function prototypes * * setmode(mode) * * delay(n) * * resetchip() * * singlecmd(i) * * singledata(i) * * setramaddr(page,col) * * parfillpage(mode,page) * * parfillram(mode) * * setcontrast(gain,step) * * initdisplay() * * sendchar(ascchar) * * sendmsg(msgoffset) * * dumppattern(page,col,x,y,pat) * * clearram(start,stop) * ****************************************************/ void setmode(unsigned char mode) /* 1 = parallel, 0 = serial */ { wc_csh = 0x7d; //for demoboard mcu wc_csl = 0x3d; /* parallel mode */ wd_csh = 0x7f; /* master mode */ wd_csl = 0x3f; /* 6800 mode */ res_csh = 0xff; res_csl = 0xef; rc_csh = 0xfd; /* fd */ rc_csl = 0xbd; /* bd */ rd_csh = 0xff; /* ff */ rd_csl = 0xbf; /* bf */ } void delay(unsigned int n) /* wait n seconds*/ { unsigned int i; unsigned int j; for (i=0;i<500;i++) for (j=0;j 8 solomon dvk1821z-a1 rev 0.1 08/2000 for (j=0;j<8;j++) { dataport=(wd_csl|(i<> 4); singlecmd(coladdrhi | temp);
9 solomon dvk1821z-a1 rev 0.1 08/2000 temp = 0x0f & col; singlecmd(coladdrlo | temp); } void setcontrast(unsigned char gain, step) { //set overall contrast singlecmd(intregratio | (0x0f & gain)); //set internal resistor ratio singlecmd(contctrlreg); //set contrast control register singlecmd((0x3f & step)); } void initdisplay() { /* turn on normal display */ singlecmd(displayoff); singlecmd(segremapoff); singlecmd(comremapon); setcontrast(iintregvalue, icontctrlregvalue); //set default contrast singlecmd(pwrctrlreg | intvolbstr | intreg | opampbuffer); //turn on booster, regulator & divider singlecmd(displayon); } void dumppattern(unsigned char page, col, x, y, unsigned char code *pat) { unsigned char i; unsigned char j; unsigned int k; k=0; for (j=0;jstop; i-=1) { setcontrast(iintregvalue, i); //slowly turn off display
10 solomon dvk1821z-a1 rev 0.1 08/2000 fdelay(120); } } } /**************************************************** * f) main function * ****************************************************/ main() { unsigned char idispstln, irampgptr; unsigned char ch1,ch2,mask1,mask2; unsigned char i, j; unsigned char k, l; start: setmode(ps); resetchip(); singlecmd(interosc); singlecmd(0x67); /****************************/ /* show device demo */ /****************************/ initdisplay(); // initialize normal display environment singlecmd(displayoff); singlecmd(0x56); contrastctrl(10,icontctrlregvalue); singlecmd(0x24); idispstln=0; singlecmd(displayon); // blank display update ram /* fill screen with 0x00 */ for (i=0;i solomon reserves the right to make changes without further notice to any products herein. solomon makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does solomon assume any liability arising out of the application or use of any product or circuit, and specifi- cally disclaims any and all liability, including without limitation consequential or incidental damages. ?typical? parameters ca n and do vary in different applications. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. solomon does not convey any license under its patent rights nor the rights of others.solomon products are not designed, intended, or authorized for use as c omponents in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of unintended or unauthorized application, buyer shall indemnify and hold solomon and its offices, employees, subsidiaries, affiliates, and distributors harml ess against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associa ted with such unintended or unautho- rized use, even if such claim alleges that solomon was negligent regarding the design or manufacture of the part. dvk1821z-a { setramaddr(i,0); for (j=0;j |
