Средства и методы разработки

Меня пока это устраивает: kbd_drv.h: #ifndef KBD_DRV_H #define KBD_DRV_H #include "kbd_drv.h" #include <avr/io.h> #include "avrlibtypes.h" #include "macros.h" #include "sys_timer.h" #include "char_display.h" #include "prgmem_lib.h" //======================================================================== #define DEBOUNCE_DELAY 20 //#define HOLD YES //======================================================================== //======================================================================== #define KEYS_PIN PINA #define KEYS_DDR DDRA #define KEYS_PORT PORTA //======================================================================== #define KEYS_DDR_ESC DDRA #define KEYS_DDR_ENTER DDRA #define KEYS_DDR_UP DDRA #define KEYS_DDR_DOWN DDRA #define KEYS_DDR_PLUS DDRA #define KEYS_DDR_MINUS DDRA #define KEYS_DDR_6 DDRA #define KEYS_DDR_7 DDRA //------------------------------------------------------------------------ #define KEYS_PORT_ESC PORTA #define KEYS_PORT_ENTER PORTA #define KEYS_PORT_UP PORTA #define KEYS_PORT_DOWN PORTA #define KEYS_PORT_PLUS PORTA #define KEYS_PORT_MINUS PORTA #define KEYS_PORT_6 PORTA #define KEYS_PORT_7 PORTA //------------------------------------------------------------------------ #define KEYS_PIN_ESC PINA #define KEYS_PIN_ENTER PINA #define KEYS_PIN_UP PINA #define KEYS_PIN_DOWN PINA #define KEYS_PIN_PLUS PINA #define KEYS_PIN_MINUS PINA #define KEYS_PIN_6 PINA #define KEYS_PIN_7 PINA //------------------------------------------------------------------------ #define KEY_ESC_PIN 0 #define KEY_ENTER_PIN 1 #define KEY_UP_PIN 2 #define KEY_DOWN_PIN 3 #define KEY_PLUS_PIN 4 #define KEY_MINUS_PIN 5 //------------------------------------------------------------------------ #define KEY_ESC_BIT 1<<KEY_ESC_PIN #define KEY_ENTER_BIT 1<<KEY_ENTER_PIN #define KEY_UP_BIT 1<<KEY_UP_PIN #define KEY_DOWN_BIT 1<<KEY_DOWN_PIN #define KEY_PLUS_BIT 1<<KEY_PLUS_PIN #define KEY_MINUS_BIT 1<<KEY_MINUS_PIN #define KEY_ESC_COD 0 #define KEY_ENTER_COD 1 #define KEY_UP_COD 2 #define KEY_DOWN_COD 3 #define KEY_PLUS_COD 4 #define KEY_MINUS_COD 5 //======================================================================== //======================================================================== #define KEYS_MASK (KEY_ESC_BIT | KEY_ENTER_BIT | KEY_UP_BIT | KEY_DOWN_BIT | KEY_PLUS_BIT | KEY_MINUS_BIT) //======================================================================== //#define KEY1_PRESSED() ((KEYS1_PIN & (1<<BIT_KEY1) == 0) //#define KEY1_UNPRESSED() ((KEYS1_PIN & (1<<BIT_KEY1) == 1) extern u08 keys_buf; typedef enum kbd_states { KEYS_INIT=0, KEYS_NONE, KEYS_DOWN, KEYS_WAIT_UP, KEYS_UP, } kbd_states; void scan_keys (void); void kbd_drv (void); void (define_keys) (void); #endif kbd_drv.c: //======================================================================== #include "kbd_drv.h" //======================================================================== static u08 keys_flags; #define KEYS_PRESSED_FLG 0 #define DEFINE_KEYS_FLG 1 static u08 keys_curr; u08 keys_buf; //======================================================================== typedef struct PROGMEM { u08 key; // Какая кнопка нажата. u08 key_cod; // Код кнопки } str_key_cod; str_key_cod tab_keys_code [] = { {KEY_ESC_BIT, KEY_ESC_COD}, {KEY_ENTER_BIT, KEY_ENTER_COD}, {KEY_UP_BIT, KEY_UP_COD}, {KEY_DOWN_BIT, KEY_DOWN_COD}, {KEY_PLUS_BIT, KEY_PLUS_COD}, {KEY_MINUS_BIT, KEY_MINUS_COD}, }; //------------------------------------------------------------------------ void (define_keys) (void) // Функция определения кода нажатой кнопки. { if (keys_flags & 1<<DEFINE_KEYS_FLG) // Если установлен этот флаг, определение кнопки, иначе выход. { clrb (keys_flags, DEFINE_KEYS_FLG); // Сброс флага. u08 i; // Если конец таблицы, то выход. for (i=0; prw (tab_keys_code [i]) != sizeof (tab_keys_code); i++) { // Если маска нажатой кнопки соответствует //значению из таблицы, то считываем код кнопки и записываем его в keys_buf. if (prb (tab_keys_code [i].key) == keys_curr) { keys_buf = prb (tab_keys_code [i].key_cod); DDRD = prb (tab_keys_code [i].key_cod); // test!!! break; } } } } //======================================================================== void scan_keys (void) { clrb (keys_flags, KEYS_PRESSED_FLG); u08 a; a = ~KEYS_PIN; a &= KEYS_MASK; if (a != 0) { setb (keys_flags, KEYS_PRESSED_FLG); } keys_curr = a; } //======================================================================== void kbd_drv(void) { static u08 _keys; static u08 keys_prev; scan_keys (); switch (_keys) { case KEYS_INIT: keys_prev = 0xFF; keys_curr = 0xFF; keys_buf = 0xFF; _keys = KEYS_NONE; break; case KEYS_NONE: if (keys_flags & (1<<KEYS_PRESSED_FLG)) { keys_prev = keys_curr; set_timer (ST_KBD, 1<<TMR_UNLOCK_FLG, DEBOUNCE_DELAY); _keys = KEYS_DOWN; } break; case KEYS_DOWN: if (wait (ST_KBD)) { if (keys_flags & (1<<KEYS_PRESSED_FLG) && keys_prev == keys_curr) { setb (keys_flags, DEFINE_KEYS_FLG); _keys = KEYS_WAIT_UP; // set_timer (ST_KBD, 1<<TMR_UNLOCK_FLG, HOLD_DELAY); // _keys = KEYS_HOLD; } else _keys = KEYS_NONE; } break; case KEYS_WAIT_UP: if (!(keys_flags & (1<<KEYS_PRESSED_FLG))) { set_timer (ST_KBD, 1<<TMR_UNLOCK_FLG, DEBOUNCE_DELAY); _keys = KEYS_UP; } break; case KEYS_UP: if (wait (ST_KBD)) { if (!(keys_flags & (1<<KEYS_PRESSED_FLG))) _keys = KEYS_NONE; else _keys = KEYS_WAIT_UP; } break; default: _keys = KEYS_INIT; break; } define_keys(); } //========================================================================