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Aktuální adresář: FITkit / trunk / apps / demo_msp / free_rtos / mcu /

main.c

   1  /*******************************************************************************
   2     main: main for FreeRTOS (see http://www.freertos.org/)
   3     Copyright (C) 2010 Brno University of Technology,
   4                        Faculty of Information Technology
   5     Author(s): Josef Strnadel <strnadel AT stud.fit.vutbr.cz>
   6                Zdenek Vasicek <vasicek AT fit.vutbr.cz>
   7  
   8     LICENSE TERMS
   9  
  10     Redistribution and use in source and binary forms, with or without
  11     modification, are permitted provided that the following conditions
  12     are met:
  13     1. Redistributions of source code must retain the above copyright
  14        notice, this list of conditions and the following disclaimer.
  15     2. Redistributions in binary form must reproduce the above copyright
  16        notice, this list of conditions and the following disclaimer in
  17        the documentation and/or other materials provided with the
  18        distribution.
  19     3. All advertising materials mentioning features or use of this software
  20        or firmware must display the following acknowledgement:
  21  
  22          This product includes software developed by the University of
  23          Technology, Faculty of Information Technology, Brno and its
  24          contributors.
  25  
  26     4. Neither the name of the Company nor the names of its contributors
  27        may be used to endorse or promote products derived from this
  28        software without specific prior written permission.
  29  
  30     This software or firmware is provided ``as is'', and any express or implied
  31     warranties, including, but not limited to, the implied warranties of
  32     merchantability and fitness for a particular purpose are disclaimed.
  33     In no event shall the company or contributors be liable for any
  34     direct, indirect, incidental, special, exemplary, or consequential
  35     damages (including, but not limited to, procurement of substitute
  36     goods or services; loss of use, data, or profits; or business
  37     interruption) however caused and on any theory of liability, whether
  38     in contract, strict liability, or tort (including negligence or
  39     otherwise) arising in any way out of the use of this software, even
  40     if advised of the possibility of such damage.
  41  
  42     $Id$
  43  
  44  
  45  *******************************************************************************/
  46  
  47  

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#include <fitkitlib.h> 48

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#include "FreeRTOS.h" /* see http://www.freertos.org/ */ 49

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#include "task.h" 50 51

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#include <keyboard/keyboard.h> 52

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#include <lcd/display.h> 53 54 volatile char last_ch; 55 unsigned char pressed = 0; 56 57 unsigned long cnt = 0; 58 59 enum eLightIntensity {lightOFF=0, lightLOW=10, lightBRIGHT=100}; 60 enum eLightIntensity lightIntensity = lightOFF; 61 62 unsigned char charmap1[8] = {0x07, 0x08, 0x1e, 0x08, 0x00, 0x0f, 0x0e, 0x09}; 63 /* 76543210 64 * .....XXX 65 * ....X... 66 * ...XXXX. 67 * ....X... 68 * ........ 69 * ....XXXX 70 * ....XXX. 71 * ....X..X 72 */ 73 74 unsigned char charmap2[8] = {0x06, 0x08, 0x08, 0x08, 0x00, 0x1f, 0x04, 0x04}; 75 /* 76543210 76 * .....XX. 77 * ....X... 78 * ....X... 79 * ....X... 80 * ........ 81 * ...XXXXX 82 * .....X.. 83 * .....X.. 84 */ 85 86 unsigned char charmap3[8] = {0x0c, 0x12, 0x1c, 0x1e, 0x00, 0x0c, 0x12, 0x0c}; 87 /* 76543210 88 * ....XX.. 89 * ...X..X. 90 * ...XXX.. 91 * ...XXXX. 92 * ........ 93 * ....XX.. 94 * ...X..X. 95 * ....XX.. 96 */ 97 98 unsigned char charmap4[8] = {0x0c, 0x12, 0x1c, 0x1e, 0x00, 0x0f, 0x04, 0x1e}; 99 /* 76543210 100 * ....XX.. 101 * ...X..X. 102 * ...XXX.. 103 * ...XXXX. 104 * ........ 105 * ....XXXX 106 * .....X.. 107 * ...XXXX. 108 */ 109 110 111 /******************************************************************************* 112 * Bodies of the RT tasks running over FreeRTOS 113 *******************************************************************************/ 114 115 /* --------------------- 116 keyboard service task 117 --------------------- */ 118 static void keyboardTask(void *param) 119 { 120 char ch; 121 122 last_ch = 0; 123 keyboard_init(); 124 125 for (;;) 126 { 127 set_led_d6(0); 128 129 ch = key_decode(read_word_keyboard_4x4()); 130 if (ch != last_ch) { 131 last_ch = ch; 132 if (ch != 0) { 133 switch (ch) { 134 case 'A': 135 pressed = 1; 136 set_led_d6(1); 137 term_send_str_crlf("\t\tkeyboardTask: 'A' press detected"); 138 139 break; 140 default: 141 break; 142 } 143 } 144 } 145 vTaskDelay( 10 / portTICK_RATE_MS); /* delay for 10 ms (= btn-press sampling period) */ 146 } 147 } 148 149 /* --------------------- 150 terminal service task 151 --------------------- */ 152 static void terminalTask(void *param) 153 { 154 for (;;) { 155 terminal_idle(); 156 vTaskDelay( 1000 / portTICK_RATE_MS); /* delay for 1000 ms */ 157 } 158 } 159 160 /* ----------------- 161 lamp control task 162 ----------------- */ 163 static void lampTask(void *param) 164 { 165 pressed = 0; 166 167 for(;;) 168 { 169 /*--- OFF ---*/ 170 lightIntensity = lightOFF; 171 term_send_str_crlf("lampLight: OFF"); 172 term_send_str_crlf("\tlampTask: waiting for 'A' press (OFF->LOW)"); 173 while(!pressed); //term_send_str_crlf("waiting 4 press"); 174 pressed = 0; 175 176 /*--- LOW ---*/ 177 lightIntensity = lightLOW; 178 term_send_str_crlf("lampLight: LOW"); 179 term_send_str_crlf("\tlampTask: waiting 500 ms for 'A' press (LOW -> BRIGHT)"); 180 vTaskDelay( 500 / portTICK_RATE_MS); /* delay for 500 ms */ 181 term_send_str_crlf("\tlampTask: time over"); 182 183 if(pressed) 184 { 185 /*--- BRIGHT ---*/ 186 term_send_str_crlf("\tlampTask: press detected during the time"); 187 pressed = 0; 188 lightIntensity = lightBRIGHT; 189 term_send_str_crlf("lampLight: BRIGHT"); 190 } 191 else term_send_str_crlf("\tlampTask: no press detected during the time"); 192 193 term_send_str_crlf("\tlampTask: waiting for 'A' press (-> OFF)"); 194 while(!pressed); 195 pressed = 0; 196 } 197 } 198 199 /******************************************************************************* 200 * misc functions 201 *******************************************************************************/ 202 void print_user_help(void) 203 { 204 } 205 206 unsigned char decode_user_cmd(char *cmd_ucase, char *cmd) 207 { 208 } 209 210 211 void LCD_info(char str[LCD_CHAR_COUNT]) 212 { 213 /* display usr characters (FreeRTOS) */ 214 LCD_append_char('\x1'); 215 LCD_append_char('\x2'); 216 LCD_append_char('\x3'); 217 LCD_append_char('\x4'); 218 219 /* send futher data to LCD */ 220 LCD_send_cmd(0x0c, 0); 221 LCD_append_string(str); 222 } 223 224 /******************************************************************************* 225 * inits preceding main() call 226 *******************************************************************************/ 227 void fpga_initialized() 228 { 229 LCD_init(); 230 231 /* load usr characters (FreeRTOS) to LCD */ 232 LCD_load_char(1, charmap1); 233 LCD_load_char(2, charmap2); 234 LCD_load_char(3, charmap3); 235 LCD_load_char(4, charmap4); 236 237 /* welcome text */ 238 LCD_info(" Lamp ctrl"); 239 } 240 241 /******************************************************************************* 242 * top level code 243 *******************************************************************************/ 244 int main( void ) 245 { 246 /*--- HW init ---*/ 247 initialize_hardware(); 248 WDG_stop(); 249 P1DIR |= LED0; 250 /* timer init */ 251 TBCCTL0 = CCIE; /* TIMER B interrupts enable */ 252 TBCCR0 = 0x0100; /* interrupt each x ticks of clk source */ 253 TBCTL = TBSSEL_2 + MC_1; /* SMCLK, continuous mode */ 254 255 term_send_crlf(); 256 257 /*--- install FreeRTOS tasks ---*/ 258 term_send_str_crlf("init FreeRTOS tasks..."); 259 xTaskCreate(terminalTask /* code */, "TERM" /* name */, 500 /* stack size */, NULL /* params */, 1 /* prio */, NULL /* handle */); 260 xTaskCreate(keyboardTask, "KBD", 32, NULL, 1, NULL); 261 xTaskCreate(lampTask, "LAMP", 32, NULL, 1, NULL); 262 263 /* ------------------------------------------------ 264 FreeRTOS details 265 can be found at 266 http://www.freertos.org/ 267 ------------------------------------------------ */ 268 269 /*--- start FreeRTOS kernel ---*/ 270 term_send_str_crlf("starting FreeRTOS scheduler...\n"); 271 vTaskStartScheduler(); 272 273 return 0; 274 } 275 276 /******************************************************************************* 277 * interrupt service routines 278 *******************************************************************************/ 279 interrupt (TIMERB0_VECTOR) Timer_B (void) 280 { 281 282 cnt++; 283 284 if((cnt>=0) && (cnt<=lightIntensity)) { P1OUT=0; } /* D5 on-time */ 285 else { P1OUT=1; } /* D5 off-time */ 286 if(cnt>=(100)) {cnt=0;} 287 288 TBCCR0 = 0x0100; /* interrupt each x ticks of clk source */ 289 } 290
Zobrazeno: 162253x Naposledy: 22.1.2018 20:45:29