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| 1 | /* | |
| 2 | Copyright 2012 D Westaby | |
| 3 | ||
| 4 | ---------------------------------------------------------------------- | |
| 5 | Generic Pattern for Attiny2313 | |
| 6 | ---------------------------------------------------------------------- | |
| 7 | Title: Generic_Lighting.c | |
| 8 | Author: Dustin Westaby | |
| 9 | Date Created: September 8, 2012 | |
| 10 | Date Modified: March 21, 2013 | |
| 11 | ||
| 12 | Compiled with AVR-GCC WinAVR | |
| 13 | ||
| 14 | Connection reference by Alex Weber: | |
| 15 | http://tinkerlog.com/2009/06/18/microcontroller-cheat-sheet/ | |
| 16 | ||
| 17 | ---------------------------------------------------------------------- | |
| 18 | Fuses: | |
| 19 | ---------------------------------------------------------------------- | |
| 20 | BrownOut Disabled | |
| 21 | CKDIV8 | |
| 22 | Int RC Osc 8Mhz + 64ms | |
| 23 | ||
| 24 | ---------------------------------------------------------------------- | |
| 25 | Inputs: | |
| 26 | ---------------------------------------------------------------------- | |
| 27 | pin i/o port circuit trace notes | |
| 28 | ---------------------------------------------------------------------- | |
| 29 | 1 0 PA2 = RESET Momentary Switch to ground | |
| 30 | 10 GND = Ground | |
| 31 | 20 VCC = +V Battery | |
| 32 | 12 0 PB0 = B0 Momentary Switch to ground | |
| 33 | ||
| 34 | Note: Momentary switches need pullup 10k resisters | |
| 35 | ||
| 36 | ---------------------------------------------------------------------- | |
| 37 | Ouputs: | |
| 38 | ---------------------------------------------------------------------- | |
| 39 | pin i/o port circuit trace notes | |
| 40 | ---------------------------------------------------------------------- | |
| 41 | 2 1 PD0 = LED1 *1 | |
| 42 | 3 1 PD1 = LED2 *1 | |
| 43 | 4 1 PA1 = LED3 *1 | |
| 44 | 5 1 PA0 = LED4 *1 | |
| 45 | 6 1 PD2 = LED5 | |
| 46 | 7 1 PD3 = LED6 | |
| 47 | - | 8 1 PD4 = LED7 CODE |
| 47 | + | 8 1 PD4 = LED7 |
| 48 | - | 9 1 PD5 = LED8 CODE |
| 48 | + | 9 1 PD5 = LED8 |
| 49 | - | 11 1 PD6 = LED9 CODE |
| 49 | + | 11 1 PD6 = LED9 |
| 50 | - | 13 1 PB1 = LED10 CODE |
| 50 | + | 13 1 PB1 = LED10 |
| 51 | 14 1 PB2 = LED11 | |
| 52 | 17 1 PB5 = LED12 *1 | |
| 53 | 18 1 PB6 = LED13 *1 | |
| 54 | 19 1 PB7 = LED14 *1 | |
| 55 | ||
| 56 | Note *1 - LED connected will disable pin's alternate functions | |
| 57 | = external osc | |
| 58 | = serial | |
| 59 | = programming | |
| 60 | Use a resister to isolate these. | |
| 61 | ||
| 62 | */ | |
| 63 | ||
| 64 | //-------------------------------------- | |
| 65 | // Global Variables | | |
| 66 | //-------------------------------------- | |
| 67 | // 8 MHz Internal Oscillator DIV8 (used for delay subroutines) | |
| 68 | // One CPU Cycle = 1us | |
| 69 | #define F_CPU 8000000UL/8 | |
| 70 | ||
| 71 | #define LED1_PD0 (0) | |
| 72 | #define LED2_PD1 (1) | |
| 73 | #define LED3_PA1 (1) | |
| 74 | #define LED4_PA0 (0) | |
| 75 | #define LED5_PD2 (2) | |
| 76 | #define LED6_PD3 (3) | |
| 77 | ||
| 78 | #define LED7_PD4 (4) //These 4 are new to the program | |
| 79 | #define LED8_PD5 (5) | |
| 80 | #define LED9_PD6 (6) | |
| 81 | #define LED10_PB1 (1) | |
| 82 | ||
| 83 | #define LED11_PB2 (2) | |
| 84 | #define LED12_PB5 (5) | |
| 85 | #define LED13_PB6 (6) | |
| 86 | #define LED14_PB7 (7) | |
| 87 | ||
| 88 | #define INPUT_PB0 (0) | |
| 89 | ||
| 90 | #define CONST_DIM_DELAY_ON (200) | |
| 91 | #define CONST_DIM_DELAY_OFF (4000) | |
| 92 | ||
| 93 | /* This value is used to count us of delay and convert to ms | |
| 94 | Due to other cpu processing: "1ms of delay" < "1000us of delay" */ | |
| 95 | //#define TIME_CONVERSION_VAL (50) //actual number should be 150 (am running faster) | |
| 96 | #define TIME_CONVERSION_VAL (150) | |
| 97 | ||
| 98 | #define OFF (0) | |
| 99 | #define ON (1) | |
| 100 | ||
| 101 | #define LED_ON(led_position) (ON<<led_position) | |
| 102 | #define LED_OFF(led_position) (OFF<<led_position) | |
| 103 | ||
| 104 | #define INPUT_SW (0) | |
| 105 | #define OUTPUT_LED (1) | |
| 106 | ||
| 107 | int program_ms_counter; | |
| 108 | int program_counter_us; //used for tracking time elapsed | |
| 109 | ||
| 110 | //-------------------------------------- | |
| 111 | // Includes | | |
| 112 | //-------------------------------------- | |
| 113 | #include <avr/io.h> | |
| 114 | #include <util/delay.h> | |
| 115 | ||
| 116 | //-------------------------------------- | |
| 117 | // Delay Subroutines | | |
| 118 | //-------------------------------------- | |
| 119 | //These functions are from the delay.h include, the calls to delay functions | |
| 120 | //are re-written here to allow for longer waits. | |
| 121 | void delay_ms(uint16_t ms) {
| |
| 122 | program_ms_counter+=ms; | |
| 123 | while ( ms ) | |
| 124 | {
| |
| 125 | _delay_ms(1); | |
| 126 | ms--; | |
| 127 | } | |
| 128 | } | |
| 129 | void delay_us(uint16_t us) {
| |
| 130 | program_counter_us+=us; | |
| 131 | while ( us ) | |
| 132 | {
| |
| 133 | _delay_us(1); | |
| 134 | us--; | |
| 135 | } | |
| 136 | ||
| 137 | while(program_counter_us>=TIME_CONVERSION_VAL) | |
| 138 | {
| |
| 139 | program_ms_counter++; | |
| 140 | program_counter_us-=TIME_CONVERSION_VAL; | |
| 141 | } | |
| 142 | } | |
| 143 | ||
| 144 | //-------------------------------------- | |
| 145 | // Common Subroutines | | |
| 146 | //-------------------------------------- | |
| 147 | ||
| 148 | void reset_ms_us_counters(void) {
| |
| 149 | program_ms_counter=0; | |
| 150 | program_counter_us=0; | |
| 151 | } | |
| 152 | ||
| 153 | void all_LEDs_ON(void) {
| |
| 154 | PORTA = 0xFF; | |
| 155 | PORTB = 0xFF; | |
| 156 | PORTD = 0xFF; | |
| 157 | } | |
| 158 | ||
| 159 | void all_LEDs_OFF(void) {
| |
| 160 | PORTA = ~(0x03); | |
| 161 | PORTB = ~(0xFF); | |
| 162 | PORTD = ~(0xFF); | |
| 163 | } | |
| 164 | ||
| 165 | //-------------------------------------- | |
| 166 | // Switch Debounce | | |
| 167 | //-------------------------------------- | |
| 168 | int button_is_pressed() | |
| 169 | {
| |
| 170 | // the button is pressed when bit is clear | |
| 171 | if (bit_is_clear(PINB, PB0)) | |
| 172 | {
| |
| 173 | delay_ms(25); | |
| 174 | if (bit_is_clear(PINB, PB0)) return 1; | |
| 175 | } | |
| 176 | ||
| 177 | return 0; | |
| 178 | } | |
| 179 | ||
| 180 | //-------------------------------------- | |
| 181 | // Specific Subroutines | | |
| 182 | //-------------------------------------- | |
| 183 | ||
| 184 | void program_left_turn_mode(void) {
| |
| 185 | /* Opposite '~', actually turns the following LEDs OFF */ | |
| 186 | PORTA &= ~(LED_ON(LED3_PA1) | LED_ON(LED4_PA0)); | |
| 187 | ||
| 188 | PORTA &= 0xFF & (LED_OFF(LED3_PA1) | LED_OFF(LED4_PA0)); | |
| 189 | ||
| 190 | PORTB &= ~(LED_ON(LED14_PB7) | LED_ON(LED12_PB5)); | |
| 191 | PORTD &= ~(LED_ON(LED6_PD3) | LED_ON(LED5_PD2) | LED_ON(LED2_PD1) | LED_ON(LED1_PD0)); | |
| 192 | } | |
| 193 | ||
| 194 | void program_brake_mode(void) {
| |
| 195 | /* Opposite '~', actually turns the following LEDs OFF */ | |
| 196 | PORTA &= ~(LED_ON(LED3_PA1) | LED_ON(LED4_PA0)); | |
| 197 | } | |
| 198 | ||
| 199 | void program_right_turn_mode (void) {
| |
| 200 | /* Opposite '~', actually turns the following LEDs OFF */ | |
| 201 | PORTA &= ~(LED_ON(LED3_PA1) | LED_ON(LED4_PA0)); | |
| 202 | PORTB &= ~(LED_ON(LED14_PB7) | LED_ON(LED13_PB6) | LED_ON(LED12_PB5) | LED_ON(LED11_PB2)); | |
| 203 | PORTD &= ~(LED_ON(LED6_PD3) | LED_ON(LED2_PD1)); | |
| 204 | } | |
| 205 | ||
| 206 | void program_all_dim_loop (int timer_val) {
| |
| 207 | ||
| 208 | while(program_ms_counter < timer_val) | |
| 209 | {
| |
| 210 | all_LEDs_ON(); | |
| 211 | delay_us(CONST_DIM_DELAY_ON); | |
| 212 | all_LEDs_OFF(); | |
| 213 | delay_us(CONST_DIM_DELAY_OFF); | |
| 214 | } | |
| 215 | ||
| 216 | } | |
| 217 | ||
| 218 | void program_break_loop (int timer_val) {
| |
| 219 | ||
| 220 | while(program_ms_counter < timer_val) | |
| 221 | {
| |
| 222 | all_LEDs_ON(); | |
| 223 | delay_us(CONST_DIM_DELAY_ON); | |
| 224 | program_brake_mode(); | |
| 225 | delay_us(CONST_DIM_DELAY_OFF); | |
| 226 | } | |
| 227 | ||
| 228 | } | |
| 229 | ||
| 230 | void program_left_turn_loop (int timer_val) {
| |
| 231 | ||
| 232 | while(program_ms_counter < timer_val) | |
| 233 | {
| |
| 234 | all_LEDs_ON(); | |
| 235 | delay_us(CONST_DIM_DELAY_ON); | |
| 236 | program_left_turn_mode(); | |
| 237 | delay_us(CONST_DIM_DELAY_OFF); | |
| 238 | } | |
| 239 | ||
| 240 | } | |
| 241 | ||
| 242 | void program_right_turn_loop (int timer_val) {
| |
| 243 | ||
| 244 | while(program_ms_counter < timer_val) | |
| 245 | {
| |
| 246 | all_LEDs_ON(); | |
| 247 | delay_us(CONST_DIM_DELAY_ON); | |
| 248 | program_right_turn_mode(); | |
| 249 | delay_us(CONST_DIM_DELAY_OFF); | |
| 250 | } | |
| 251 | ||
| 252 | } | |
| 253 | ||
| 254 | ||
| 255 | //-------------------------------------- | |
| 256 | // Main | | |
| 257 | //-------------------------------------- | |
| 258 | int main (void) | |
| 259 | {
| |
| 260 | ||
| 261 | /* ---------------------------------------------------------------- */ | |
| 262 | /* Initialization */ | |
| 263 | /* ---------------------------------------------------------------- */ | |
| 264 | ||
| 265 | //Initialize all ports | |
| 266 | // DDRA = 0b00000011; //A0, A1 | |
| 267 | // DDRB = 0b11111111; | |
| 268 | // DDRD = 0b11111111; | |
| 269 | DDRA = (OUTPUT_LED<<LED4_PA0) | (OUTPUT_LED<<LED3_PA1); | |
| 270 | DDRB = (INPUT_SW<<INPUT_PB0) | (OUTPUT_LED<<LED10_PB1) | (OUTPUT_LED<<LED11_PB2) | (OUTPUT_LED<<LED12_PB5) | (OUTPUT_LED<<LED13_PB6) | (OUTPUT_LED<<LED14_PB7); | |
| 271 | DDRD = (OUTPUT_LED<<LED1_PD0) | (OUTPUT_LED<<LED2_PD1) | (OUTPUT_LED<<LED5_PD2) | (OUTPUT_LED<<LED6_PD3) | (OUTPUT_LED<<LED7_PD4) | (OUTPUT_LED<<LED8_PD5) | (OUTPUT_LED<<LED9_PD6); | |
| 272 | ||
| 273 | all_LEDs_OFF(); | |
| 274 | ||
| 275 | /* ---------------------------------------------------------------- */ | |
| 276 | /* Main Loop */ | |
| 277 | /* ---------------------------------------------------------------- */ | |
| 278 | ||
| 279 | while(1) | |
| 280 | {
| |
| 281 | ||
| 282 | //1) Dim | |
| 283 | //1 - All dim nothing happens (resting natural state) | |
| 284 | reset_ms_us_counters(); | |
| 285 | program_all_dim_loop(6000); | |
| 286 | ||
| 287 | //2) Left Turn | |
| 288 | //2 - left turn, all dim, 2 will blink at ½ sec for 10 sec. | |
| 289 | reset_ms_us_counters(); | |
| 290 | while(program_ms_counter < 10000) | |
| 291 | {
| |
| 292 | program_left_turn_loop(program_ms_counter+500); | |
| 293 | program_all_dim_loop (program_ms_counter+500); | |
| 294 | } | |
| 295 | //then dim for 1 sec | |
| 296 | program_all_dim_loop(11000); | |
| 297 | ||
| 298 | //3) Dim (4 sec) | |
| 299 | //4 - All dim nothing happens (resting natural state) | |
| 300 | reset_ms_us_counters(); | |
| 301 | program_all_dim_loop(4000); | |
| 302 | ||
| 303 | //4) Brakes | |
| 304 | //3 – brakes get bright (8 LED’s) for 4 sec then dim for 1sec for 12 seconds | |
| 305 | reset_ms_us_counters(); | |
| 306 | while(program_ms_counter < 12000) | |
| 307 | {
| |
| 308 | program_break_loop (program_ms_counter+4000); | |
| 309 | program_all_dim_loop(program_ms_counter+1000); | |
| 310 | } | |
| 311 | ||
| 312 | //5) Dim (4 Sec) | |
| 313 | //4 - All dim nothing happens (resting natural state) | |
| 314 | reset_ms_us_counters(); | |
| 315 | program_all_dim_loop(4000); | |
| 316 | ||
| 317 | //6) Right Turn | |
| 318 | //5 – right turn, all dim, 2 will blink at ½ sec for 10 sec. | |
| 319 | reset_ms_us_counters(); | |
| 320 | while(program_ms_counter < 10000) | |
| 321 | {
| |
| 322 | program_right_turn_loop(program_ms_counter+500); | |
| 323 | program_all_dim_loop (program_ms_counter+500); | |
| 324 | } | |
| 325 | //then dim for 1 sec. | |
| 326 | program_all_dim_loop(11000); | |
| 327 | ||
| 328 | //7) Dim (4 sec) | |
| 329 | //4 - All dim nothing happens (resting natural state) | |
| 330 | reset_ms_us_counters(); | |
| 331 | program_all_dim_loop(4000); | |
| 332 | ||
| 333 | //8) Brakes | |
| 334 | //6 – brakes get bright (8 LED’s) for 4 sec then dim for 1sec for 12 seconds | |
| 335 | reset_ms_us_counters(); | |
| 336 | while(program_ms_counter < 12000) | |
| 337 | {
| |
| 338 | program_break_loop (program_ms_counter+4000); | |
| 339 | program_all_dim_loop(program_ms_counter+1000); | |
| 340 | } | |
| 341 | ||
| 342 | //9) Loop | |
| 343 | ||
| 344 | } | |
| 345 | ||
| 346 | while(1); // Ending infinite loop (just in case) | |
| 347 | ||
| 348 | } |