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<!DOCTYPE <h <t <link </head><body> <!-- <div <h 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 00013 00014 00015 00016 00017 00018 00019 00020 00021 00022 00023 00024 00025 00026 00027 00028 00029 00030 00031 00032 00033 00034 00035 00036 00037 00038 00039 { 00040 00041 00042 00043 00044 00045 00046 00047 00048 00049 00050 00051 00052 00053 00054 00055 00056 00057 00058 00059 00060 00061 00062 00063 00064 00065 00066 00067 00068 00069 00070 00071 00072 00073 { 00074 00075 00076 00077 00078 00079 00080 00081 00082 00083 00084 00085 00086 { 00087 00088 00089 00090 00091 00092 } 00093 00094 00095 00096 00097 { 00098 00099 00100 00101 00102 00103 00104 00105 00106 00107 00108 00109 00110 00111 { 00112 00113 00114 00115 00116 00117 00118 } 00119 00120 00121 00122 sei(); 00123 00124 00125 00126 00127 00128 00129 00130 00131 00132 00133 { 00134 00135 00136 00137 00138 00139 00140 00141 00142 00143 00144 00145 00146 00147 sei(); 00148 00149 00150 00151 00152 00153 00154 00155 00156 00157 { 00158 00159 00160 00161 00162 00163 00164 00165 00166 00167 00168 00169 00170 00171 00172 00173 00174 sei(); 00175 00176 00177 00178 00179 00180 00181 00182 } 00183 00184 00185 { 00186 00187 00188 00189 00190 00191 00192 00193 00194 00195 00196 00197 00198 00199 00200 sei(); 00201 00202 00203 00204 00205 00206 00207 00208 00209 00210 00211 { 00212 00213 00214 00215 } 00216 } 00217 00218 00219 { 00220 00221 00222 00223 00224 00225 00226 00227 00228 00229 00230 00231 00232 00233 00234 00235 00236 sei(); 00237 00238 00239 00240 00241 00242 00243 00244 00245 00246 00247 { 00248 00249 00250 00251 } 00252 00253 } 00254 00255 00256 { 00257 00258 00259 00260 00261 00262 00263 00264 00265 00266 00267 00268 { 00269 u08 i; 00270 00271 00272 00273 00274 00275 { 00276 00277 00278 } 00279 00280 00281 00282 00283 } 00284 00285 00286 { 00287 u08 i; 00288 00289 00290 00291 00292 { 00293 00294 } 00295 } 00296 00297 00298 00299 00300 <a 00302 { 00303 u08 i; 00304 00305 glcdInitHW(); 00306 00307 00308 00309 00310 { 00311 00312 } 00313 00314 00315 00316 00317 } 00318 <a 00320 { 00321 u08 i; 00322 00323 00324 00325 00326 00327 { 00328 00329 00330 } 00331 } 00332 <a 00334 { 00335 u08 pageAddr; 00336 u08 xAddr; 00337 00338 00339 00340 00341 { 00342 00343 00344 00345 00346 { 00347 00348 } 00349 } 00350 } 00351 <a 00353 { 00354 00355 00356 } 00357 <a 00359 { 00360 00361 00362 00363 } 00364 <a 00366 { 00367 00368 } 00369 <a 00371 { 00372 00373 00374 00375 00376 00377 00378 } 00379 00380 00381 </ <a <img </body> </html>

HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> tml><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> itle>Procyon AVRlib: ks0108.c Source File</title> href="dox.css" rel="stylesheet" type="text/css"> Generated by Doxygen 1.4.2 --> class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div> 1>ks0108.c</h1><a href="ks0108_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 /*! \file ks0108.c \brief Graphic LCD driver for HD61202/KS0108 displays. */ //***************************************************************************** // // File Name : 'ks0108.c' // Title : Graphic LCD driver for HD61202/KS0108 displays // Author : Pascal Stang - Copyright (C) 2001-2003 // Date : 10/19/2002 // Revised : 5/5/2003 // Version : 0.5 // Target MCU : Atmel AVR // Editor Tabs : 4 // // NOTE: This code is currently below version 1.0, and therefore is considered // to be lacking in some functionality or documentation, or may not be fully // tested. Nonetheless, you can expect most functions to work. // // This code is distributed under the GNU Public License // which can be found at http://www.gnu.org/licenses/gpl.txt // //***************************************************************************** #ifndef WIN32 // AVR specific includes #include <avr/io.h> #include <avr/interrupt.h> #endif #include "<a class="code" href="global_8h.html">global.h</a>" #include "<a class="code" href="ks0108_8h.html">ks0108.h</a>" // global variables GrLcdStateType GrLcdState; /*************************************************************/ /********************** LOCAL FUNCTIONS **********************/ /*************************************************************/ void glcdInitHW(void) // initialize I/O ports // if I/O interface is in use #ifdef GLCD_PORT_INTERFACE //TODO: make setup of chip select lines contingent on how // many controllers are actually in the display // initialize LCD control lines levels cbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS0); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS1); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS2); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS3); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RESET); // initialize LCD control port to output sbi(GLCD_CTRL_DDR, GLCD_CTRL_RS); sbi(GLCD_CTRL_DDR, GLCD_CTRL_RW); sbi(GLCD_CTRL_DDR, GLCD_CTRL_E); sbi(GLCD_CTRL_DDR, GLCD_CTRL_CS0); sbi(GLCD_CTRL_DDR, GLCD_CTRL_CS1); sbi(GLCD_CTRL_DDR, GLCD_CTRL_CS2); sbi(GLCD_CTRL_DDR, GLCD_CTRL_CS3); sbi(GLCD_CTRL_DDR, GLCD_CTRL_RESET); // initialize LCD data outb(GLCD_DATA_PORT, 0x00); // initialize LCD data port to output outb(GLCD_DATA_DDR, 0xFF); #endif } void glcdControllerSelect(u08 controller) #ifdef GLCD_PORT_INTERFACE //TODO: make control of chip select lines contingent on how // many controllers are actually in the display // unselect all controllers cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS0); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS1); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS2); cbi(GLCD_CTRL_PORT, GLCD_CTRL_CS3); // select requested controller switch(controller) case 0: sbi(GLCD_CTRL_PORT, GLCD_CTRL_CS0); break; case 1: sbi(GLCD_CTRL_PORT, GLCD_CTRL_CS1); break; case 2: sbi(GLCD_CTRL_PORT, GLCD_CTRL_CS2); break; case 3: sbi(GLCD_CTRL_PORT, GLCD_CTRL_CS3); break; default: break; #endif } void glcdBusyWait(u08 controller) #ifdef GLCD_PORT_INTERFACE cli(); // wait until LCD busy bit goes to zero // select the controller chip glcdControllerSelect(controller); // do a read from control register outb(GLCD_DATA_PORT, 0xFF); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); outb(GLCD_DATA_DDR, 0x00); sbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); asm volatile ("nop"); asm volatile ("nop"); while(inb(GLCD_DATA_PIN) & GLCD_STATUS_BUSY) cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); outb(GLCD_DATA_DDR, 0xFF); #else // sbi(MCUCR, SRW); // enable RAM waitstate // wait until LCD busy bit goes to zero while(*(volatile unsigned char *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller) & GLCD_STATUS_BUSY); // cbi(MCUCR, SRW); // disable RAM waitstate #endif } void glcdControlWrite(u08 controller, u08 data) #ifdef GLCD_PORT_INTERFACE cli(); glcdBusyWait(controller); // wait until LCD not busy cbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); outb(GLCD_DATA_DDR, 0xFF); outb(GLCD_DATA_PORT, data); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); #else //sbi(MCUCR, SRW); // enable RAM waitstate glcdBusyWait(controller); // wait until LCD not busy *(volatile unsigned char *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller) = data; //cbi(MCUCR, SRW); // disable RAM waitstate #endif } u08 glcdControlRead(u08 controller) register u08 data; #ifdef GLCD_PORT_INTERFACE cli(); glcdBusyWait(controller); // wait until LCD not busy cbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); outb(GLCD_DATA_DDR, 0x00); sbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); data = inb(GLCD_DATA_PIN); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); outb(GLCD_DATA_DDR, 0xFF); #else //sbi(MCUCR, SRW); // enable RAM waitstate glcdBusyWait(controller); // wait until LCD not busy data = *(volatile unsigned char *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller); //cbi(MCUCR, SRW); // disable RAM waitstate #endif return data; void glcdDataWrite(u08 data) register u08 controller = (GrLcdState.lcdXAddr/GLCD_CONTROLLER_XPIXELS); #ifdef GLCD_PORT_INTERFACE cli(); glcdBusyWait(controller); // wait until LCD not busy sbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); outb(GLCD_DATA_DDR, 0xFF); outb(GLCD_DATA_PORT, data); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); #else //sbi(MCUCR, SRW); // enable RAM waitstate glcdBusyWait(controller); // wait until LCD not busy *(volatile unsigned char *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller) = data; //cbi(MCUCR, SRW); // disable RAM waitstate #endif // increment our local address counter GrLcdState.ctrlr[controller].xAddr++; GrLcdState.lcdXAddr++; if(GrLcdState.lcdXAddr >= GLCD_XPIXELS) GrLcdState.lcdYAddr++; glcdSetYAddress(GrLcdState.lcdYAddr); glcdSetXAddress(0); u08 glcdDataRead(void) register u08 data; register u08 controller = (GrLcdState.lcdXAddr/GLCD_CONTROLLER_XPIXELS); #ifdef GLCD_PORT_INTERFACE cli(); glcdBusyWait(controller); // wait until LCD not busy sbi(GLCD_CTRL_PORT, GLCD_CTRL_RS); outb(GLCD_DATA_DDR, 0x00); sbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); sbi(GLCD_CTRL_PORT, GLCD_CTRL_E); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); asm volatile ("nop"); data = inb(GLCD_DATA_PIN); cbi(GLCD_CTRL_PORT, GLCD_CTRL_E); cbi(GLCD_CTRL_PORT, GLCD_CTRL_RW); #else //sbi(MCUCR, SRW); // enable RAM waitstate glcdBusyWait(controller); // wait until LCD not busy data = *(volatile unsigned char *) (GLCD_CONTROLLER0_CTRL_ADDR + GLCD_CONTROLLER_ADDR_OFFSET*controller); //cbi(MCUCR, SRW); // disable RAM waitstate #endif // increment our local address counter GrLcdState.ctrlr[controller].xAddr++; GrLcdState.lcdXAddr++; if(GrLcdState.lcdXAddr >= GLCD_XPIXELS) GrLcdState.lcdYAddr++; glcdSetYAddress(GrLcdState.lcdYAddr); glcdSetXAddress(0); return data; void glcdReset(u08 resetState) // reset lcd if argument is true // run lcd if argument is false #ifdef GLCD_PORT_INTERFACE if(resetState) cbi(GLCD_CTRL_PORT, GLCD_CTRL_RESET); else sbi(GLCD_CTRL_PORT, GLCD_CTRL_RESET); #endif } void glcdSetXAddress(u08 xAddr) // record address change locally GrLcdState.lcdXAddr = xAddr; // clear y (col) address on all controllers for(i=0; i<GLCD_NUM_CONTROLLERS; i++) glcdControlWrite(i, GLCD_SET_Y_ADDR | 0x00); GrLcdState.ctrlr[i].xAddr = 0; // set y (col) address on destination controller glcdControlWrite((GrLcdState.lcdXAddr/GLCD_CONTROLLER_XPIXELS), GLCD_SET_Y_ADDR | (GrLcdState.lcdXAddr & 0x3F)); void glcdSetYAddress(u08 yAddr) // record address change locally GrLcdState.lcdYAddr = yAddr; // set page address for all controllers for(i=0; i<GLCD_NUM_CONTROLLERS; i++) glcdControlWrite(i, GLCD_SET_PAGE | yAddr); /*************************************************************/ /********************* PUBLIC FUNCTIONS **********************/ /*************************************************************/ name="l00301"></a><a class="code" href="ks0108_8h.html#a19">00301</a> void <a class="code" href="ks0108_8c.html#a11">glcdInit</a>() // initialize hardware // bring lcd out of reset glcdReset(FALSE); // Turn on LCD for(i=0; i<GLCD_NUM_CONTROLLERS; i++) glcdControlWrite(i, GLCD_ON_CTRL | GLCD_ON_DISPLAY); // clear lcd <a class="code" href="ks0108_8c.html#a13">glcdClearScreen</a>(); // initialize positions <a class="code" href="ks0108_8c.html#a12">glcdHome</a>(); name="l00319"></a><a class="code" href="ks0108_8h.html#a21">00319</a> void <a class="code" href="ks0108_8c.html#a12">glcdHome</a>(void) // initialize addresses/positions <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(0); <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(0,0); // initialize local data structures for(i=0; i<GLCD_NUM_CONTROLLERS; i++) GrLcdState.ctrlr[i].xAddr = 0; GrLcdState.ctrlr[i].yAddr = 0; name="l00333"></a><a class="code" href="ks0108_8h.html#a20">00333</a> void <a class="code" href="ks0108_8c.html#a13">glcdClearScreen</a>(void) // clear LCD // loop through all pages for(pageAddr=0; pageAddr<(GLCD_YPIXELS>>3); pageAddr++) // set page address <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(0, pageAddr); // clear all lines of this page of display memory for(xAddr=0; xAddr<GLCD_XPIXELS; xAddr++) glcdDataWrite(0x00); name="l00352"></a><a class="code" href="ks0108_8h.html#a24">00352</a> void <a class="code" href="ks0108_8c.html#a14">glcdStartLine</a>(u08 start) glcdControlWrite(0, GLCD_START_LINE | start); glcdControlWrite(1, GLCD_START_LINE | start); name="l00358"></a><a class="code" href="ks0108_8h.html#a23">00358</a> void <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(u08 x, u08 yLine) // set addresses glcdSetYAddress(yLine); glcdSetXAddress(x); name="l00365"></a><a class="code" href="ks0108_8h.html#a22">00365</a> void <a class="code" href="ks0108_8c.html#a16">glcdGotoChar</a>(u08 line, u08 col) <a class="code" href="ks0108_8c.html#a15">glcdSetAddress</a>(col*6, line); name="l00370"></a><a class="code" href="ks0108_8h.html#a25">00370</a> void <a class="code" href="ks0108_8c.html#a17">glcdDelay</a>(u16 p) // 1-8us ...2-13us ...5-31us // 10-60us ...50-290us unsigned int i; // 100-580us ...500-2,9ms unsigned char j; // 1000-5,8ms ...5000-29ms // 10000-56ms ...30000-170ms // 50000-295ms...60000-345ms // for (i = 0; i < p; i++) for (j = 0; j < 10; j++) asm volatile ("nop"); for (i = 0; i < p; i++) for (j = 0; j < 10; j++); // Higher level functionality has been moved to the API-layer glcd.c/glcd.h pre></div><hr size="1"><address style="align: right;">Generated on Sun Oct 29 03:41:07 2006 for Procyon AVRlib by  href="http://www.doxygen.org/index.html"> src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </address>

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