pachas
Dependencies: mbed QEI FastPWM
buttons.cpp@12:3bc2465b034a, 2020-05-15 (annotated)
- Committer:
- miguelangel_2511
- Date:
- Fri May 15 20:29:30 2020 +0000
- Revision:
- 12:3bc2465b034a
- Parent:
- 11:5cb7ae8bd831
hola papu
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
miguelangel_2511 | 11:5cb7ae8bd831 | 1 | /* File inclusion */ |
miguelangel_2511 | 0:9d0b9785d3d6 | 2 | #include "mbed.h" |
miguelangel_2511 | 0:9d0b9785d3d6 | 3 | #include "buttons.h" |
miguelangel_2511 | 0:9d0b9785d3d6 | 4 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 5 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 6 | /* Object definition */ |
miguelangel_2511 | 12:3bc2465b034a | 7 | BusIn buttons(ENTER_SW_PIN, LIMIT_SW_01_PIN, |
miguelangel_2511 | 12:3bc2465b034a | 8 | INSPIRATION_VALVE_HALL_01_PIN, INSPIRATION_VALVE_HALL_02_PIN, |
miguelangel_2511 | 12:3bc2465b034a | 9 | EXPIRATION_VALVE_HALL_01_PIN, EXPIRATION_VALVE_HALL_02_PIN); |
miguelangel_2511 | 12:3bc2465b034a | 10 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 11 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 12 | /* Global variable definition */ |
miguelangel_2511 | 0:9d0b9785d3d6 | 13 | volatile uint8_t button_state = 0; // debounced button state (bit == 1: button pressed) |
miguelangel_2511 | 0:9d0b9785d3d6 | 14 | volatile uint8_t button_press = 0; // button press detect |
miguelangel_2511 | 0:9d0b9785d3d6 | 15 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 16 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 17 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 18 | void Buttons_Initialize(void){ |
miguelangel_2511 | 0:9d0b9785d3d6 | 19 | // Enable the pull-up resistors for the buttons and the switch |
miguelangel_2511 | 0:9d0b9785d3d6 | 20 | } |
miguelangel_2511 | 0:9d0b9785d3d6 | 21 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 22 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 23 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 24 | /**************************************************************** |
miguelangel_2511 | 0:9d0b9785d3d6 | 25 | getButtonPress: check if a button has been pressed. |
miguelangel_2511 | 0:9d0b9785d3d6 | 26 | Each pressed key is reported only once |
miguelangel_2511 | 0:9d0b9785d3d6 | 27 | *****************************************************************/ |
miguelangel_2511 | 0:9d0b9785d3d6 | 28 | |
miguelangel_2511 | 0:9d0b9785d3d6 | 29 | uint8_t Get_Button_Press(uint8_t button_mask){ |
miguelangel_2511 | 0:9d0b9785d3d6 | 30 | __disable_irq(); // disable interrupts |
miguelangel_2511 | 0:9d0b9785d3d6 | 31 | button_mask &= button_press; // read button(s) |
miguelangel_2511 | 0:9d0b9785d3d6 | 32 | button_press ^= button_mask; // clear button(s) |
miguelangel_2511 | 0:9d0b9785d3d6 | 33 | __enable_irq(); // enable interrupts |
miguelangel_2511 | 0:9d0b9785d3d6 | 34 | return button_mask; |
miguelangel_2511 | 0:9d0b9785d3d6 | 35 | } |