Paul Griffith
/
TextStar1
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main.cpp
00001 /* Test harness for TextStar serial LCD library 00002 * Paul Griffith 00003 * Last edit: 10 Jan 2010 00004 */ 00005 00006 #include "mbed.h" 00007 #include "TextStar.h" 00008 00009 void bargraph_demo(int); 00010 void printhelps(void); 00011 void bad_args(void); 00012 00013 Serial pc(USBTX, USBRX); 00014 TextStar lcd(p9, p10); // tx, rx 00015 00016 int main() { 00017 char buf[120], *cp; 00018 char arg1[50], arg2[50], arg3[50]; 00019 int argc, cnt = 0, i, j, k, l; 00020 00021 00022 printf("TextStar Serial LCD test harness\n"); 00023 printf("Type ? for help\n"); 00024 lcd.printf("TextStar Serial\rLCD test harness"); 00025 00026 while (1) { 00027 printf("> "); 00028 cp = buf; 00029 while ( (*cp++ = putchar(getchar())) != '\r') ; //get a line of input 00030 *cp = '\0'; //terminate buffer 00031 printf("\n"); 00032 argc = sscanf(buf, "%s%s%s", arg1, arg2, arg3); //extract command and arguments 00033 if (argc < 1) 00034 continue; 00035 switch (arg1[0]) { 00036 00037 case 'b': //bar graph demo 00038 bargraph_demo(0); 00039 wait(1.0); 00040 bargraph_demo(1); 00041 break; 00042 00043 case 'c': //clear display 00044 lcd.cls(); 00045 break; 00046 00047 case 'C': //set cursor style 00048 if (argc != 2) { 00049 bad_args(); 00050 break; 00051 } 00052 sscanf(arg2, "%d", &i); //extract style number 00053 lcd.set_cursor(i); 00054 break; 00055 00056 case 'd': //move cursor down 00057 j = 1; 00058 if (argc == 2) 00059 sscanf(arg2, "%d", &j); 00060 for (i = 0; i < j; i++) 00061 lcd.down(); 00062 break; 00063 00064 case 'D': //define custom character 00065 sscanf(buf, "%s%d%x%x", arg1, &i, &j, &k); //extract arguments 00066 arg3[0] = (j >> 24) & 0xFF; 00067 arg3[1] = (j >> 16) & 0xFF; 00068 arg3[2] = (j >> 8) & 0xFF; 00069 arg3[3] = j & 0xFF; 00070 arg3[4] = (k >> 24) & 0xFF; 00071 arg3[5] = (k >> 16) & 0xFF; 00072 arg3[6] = (k >> 8) & 0xFF; 00073 arg3[7] = k & 0xFF; 00074 lcd.custom_char(i, arg3); 00075 lcd.cls(); 00076 lcd.printf("Custom chars"); 00077 lcd.locate(0, 1); 00078 lcd.printf("128-135 %c%c%c%c%c%c%c%c", 0x80, 0x81, 00079 0x82, 0x83, 0x84, 0x85, 0x86, 0x87); 00080 break; 00081 00082 case 'e': //enter text at current position 00083 if (argc < 2) { 00084 bad_args(); 00085 break; 00086 } 00087 *--cp = '\0'; //get rid of \r at end of buffer 00088 sscanf(buf, "%s%n", arg1, &i); //extract arguments 00089 // cp = buf + i; 00090 // while (*cp++ == ' ') ; //find start of text 00091 // --cp; 00092 cp = buf + i + 1; //allow leading white space 00093 lcd.printf("%s", cp); 00094 break; 00095 00096 case 'h': //cursor home 00097 lcd.home(); 00098 break; 00099 00100 case 'k': //get key states 00101 while (lcd.readable() ) 00102 lcd.getc(); //empty buffer 00103 printf("Key states = "); 00104 lcd.send_keys(); 00105 i = lcd.getc(); 00106 j = lcd.getc(); 00107 k = lcd.getc(); 00108 l = lcd.getc(); 00109 printf("%c%c%c%c\n", i, j, k, l); 00110 break; 00111 00112 case 'K': //get key output until any char typed on pc 00113 printf("Key output: "); 00114 while (pc.readable() == 0) { 00115 if (lcd.readable() ) 00116 pc.putc(lcd.getc() ); 00117 } 00118 while (pc.readable() ) 00119 pc.getc(); 00120 printf("\nAll done\n"); 00121 break; 00122 00123 case 'o': //output demo 00124 lcd.cls(); 00125 j = 20; 00126 if (argc == 2) { 00127 sscanf(arg2, "%d", &j); 00128 } 00129 for (i = 0; i < j; i++) { 00130 lcd.printf("Count = %d\r", cnt++); 00131 wait( (i == 0) ? 1.0 : 0.2); 00132 } 00133 break; 00134 00135 case 'l': //move cursor left 00136 j = 1; 00137 if (argc == 2) 00138 sscanf(arg2, "%d", &j); 00139 for (i = 0; i < j; i++) 00140 lcd.left(); 00141 break; 00142 00143 case 'p': //set cursor position 00144 if (argc < 3) { 00145 bad_args(); 00146 break; 00147 } 00148 sscanf(buf, "%s%d%d", arg1, &i, &j); //extract arguments 00149 lcd.locate(j, i); 00150 break; 00151 00152 case 'q': //quit 00153 exit(1); 00154 break; 00155 00156 case 'r': //move cursor right 00157 j = 1; 00158 if (argc == 2) 00159 sscanf(arg2, "%d", &j); 00160 for (i = 0; i < j; i++) 00161 lcd.right(); 00162 break; 00163 00164 case 'R': //reset display (and set autoblank (and autoscroll) ) 00165 if (argc == 1) { 00166 lcd.reset(); 00167 } 00168 else if (argc == 2) { 00169 sscanf(arg2, "%d", &i); 00170 lcd.reset(i); 00171 } 00172 else if (argc >= 3) { 00173 sscanf(arg2, "%d", &i); 00174 sscanf(arg3, "%d", &j); 00175 lcd.reset(i, j); 00176 } 00177 break; 00178 00179 case 's': //scroll down 00180 j = 1; 00181 if (argc == 2) 00182 sscanf(arg2, "%d", &j); 00183 for (i = 0; i < j; i++) 00184 lcd.scroll_down(); 00185 break; 00186 00187 case 'S': //scroll up 00188 j = 1; 00189 if (argc == 2) 00190 sscanf(arg2, "%d", &j); 00191 for (i = 0; i < j; i++) 00192 lcd.scroll_up(); 00193 break; 00194 00195 case 'u': //move cursor up 00196 j = 1; 00197 if (argc == 2) 00198 sscanf(arg2, "%d", &j); 00199 for (i = 0; i < j; i++) 00200 lcd.up(); 00201 break; 00202 00203 case 'v': //display firmware version 00204 lcd.version(); 00205 break; 00206 00207 00208 case 'w': //move visible window 00209 if (argc != 2) { 00210 bad_args(); 00211 break; 00212 } 00213 sscanf(arg2, "%d", &i); //extract line number 00214 lcd.window(i); 00215 break; 00216 00217 case 'x': //send hex data to display 00218 argc = sscanf(buf, "%s%x%x%x%x", arg1, &i, &j, &k, &l); //extract arguments 00219 if (argc > 1) 00220 lcd.putc(i & 0xFF); 00221 if (argc > 2) 00222 lcd.putc(j & 0xFF); 00223 if (argc > 3) 00224 lcd.putc(k & 0xFF); 00225 if (argc > 4) 00226 lcd.putc(l & 0xFF); 00227 break; 00228 00229 case '?': //print help 00230 printhelps(); 00231 break; 00232 00233 default: 00234 printf("?? Unknown command\n"); 00235 break; 00236 } 00237 } 00238 } 00239 00240 //Command functions 00241 00242 void printhelps(void) { 00243 printf("Command summary:\n"); 00244 printf("b bar graph demo\n"); 00245 printf("c clear display\n"); 00246 printf("C style set cursor style (0-4)\n"); 00247 printf("d [n] cursor down n times (default 1)\n"); 00248 printf("D n bm1 bm2 define custom char n (128-135) with bitmap in hex\n"); 00249 printf(" bm1 = bitmap rows 1-4, bm2 = rows 5-8\n"); 00250 printf("e text enter text at current position\n"); 00251 printf("h cursor home\n"); 00252 printf("k get key states\n"); 00253 printf("K show key output\n"); 00254 printf("l [n] cursor left n times (default 1)\n"); 00255 printf("o output demo\n"); 00256 printf("p line col set cursor position to line (0-15) and column (0-15)\n"); 00257 printf("q quit\n"); 00258 printf("r [n] cursor right n times (default 1)\n"); 00259 printf("R [ab] [as] reset display, set auto-blank (0/1) and auto-scroll (0/1)\n"); 00260 printf("s [n] scroll down n times (default 1)\n"); 00261 printf("S [n] scroll up n times (default 1)\n"); 00262 printf("u [n] cursor up n times (default 1)\n"); 00263 printf("v display firmware version\n"); 00264 printf("w line move display window to specified line (0-14)\n"); 00265 printf("x b b b b send hex data to display, up to 4 bytes\n"); 00266 } 00267 00268 void bargraph_demo(int capped) { 00269 00270 int i; 00271 00272 lcd.cls(); 00273 lcd.printf("BAR GRAPH DEMO %d", capped + 1); 00274 for (i = 0; i <= 100; i++) { 00275 lcd.locate(0, 1); 00276 lcd.bar_graph(capped, 16, i); 00277 wait( (i == 0) ? 1.0 : 0.02); 00278 } 00279 wait(1.0); 00280 for (i = 100; i >= 0; i--) { 00281 lcd.locate(0, 1); 00282 lcd.bar_graph(capped, 16, i); 00283 wait( (i == 0) ? 1.0 : 0.02); 00284 } 00285 } 00286 00287 void bad_args(void) { 00288 printf("?? Bad arguments\n"); 00289 } 00290
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