125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
/* Simulacni verze ovladace pro GPIO piny drv_gpio */
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/*
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* @file drv_gpio.h
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* @brief Simple GPIO driver for LED and push buttons Freescale KL25Z
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* @version V1.00
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* @date 17. July 2015
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*
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* @note
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*
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* Ukazkovy program pro Programovani mikropocitacu
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* Ovladac pro LED a tlacitka. Umoznuje ovladat tlacitka na vyvojovem kitu
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* s FRDM-KL25Z ve stylu jako Arduino funkce digitalRead, digitalWrite and pinMode.
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*
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* Pozor: toto neni priklad univerzalniho ovladace pro mapovani nejakych cisel/nazvu pinu
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* na fyzicke piny mikrokontroleru. Piny jsou mapovany primitivne, natvrdo pomoc switch.
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* Nazvy funkci neodpovidaji doporucene konvenci {nazev_ovladace}_{nazev_funkce}, aby byla
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* zajistena jejich podobnost funkcim Arduina, ktere jsou obecne zname.
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*
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* Vyjimky z doporucenych konvenci kvuli strucnejsimu zapisu programu:
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* - funkce pinWrite, pinMode, pinRead nezacinaji predponou modulu (GPIO)
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* - nazvy polozek vyctovych typu (enum) neobsahuji nazev modulu (GPIO).
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*
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*
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*/
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#ifndef UTBFRDM_DRV_GPIO_H
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#define UTBFRDM_DRV_GPIO_H
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#include <inttypes.h>
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//#ifdef __cplusplus
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//extern "C" {
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//#endif
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/** \ingroup UTB_FRDM_Drivers
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\defgroup UTB_FRDM_NewDriver New Driver for FRDM-KL25Z
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@{
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*/
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/** Available pins
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* Hodnoty prvku jsou cisla pinu. Port neni resen, ten musi byt "hard-coded" ve funkcich.
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* */
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typedef enum _utb_frdm_gpio_pins
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{
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LD1 = 0,
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LD2 = 1,
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LD3 = 2,
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LED_RED = 3,
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LED_GREEN = 4,
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LED_BLUE = 5,
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SW1 = 6,
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SW2 = 7,
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SW3 = 8,
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SW4 = 9,
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LAST_PIN,
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/*
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INVALID_PIN = 0xFF,
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LD1 = 8,
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LD2 = 9,
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LD3 = 10,
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LED_RED = 18,
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LED_GREEN = 19,
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SW1 = 4,
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SW2 = 5,
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SW3 = 16,
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SW4 = 17,
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LAST_PIN,
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*/
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} FRDM_kit_pin;
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/** Mozne hodnoty zapisovane na pin */
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#define HIGH (1) /* log. 1 */
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#define LOW (0) /* log. 0 */
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/* Mozne rezimy pinu */
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typedef enum _utb_frdm_pin_modes
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{
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INPUT,
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OUTPUT,
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INPUT_PULLUP,
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} FRDM_kit_pinmode;
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/**
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* @brief Initialize the gpio driver for LEDs and push buttons.
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* @param param Must be one of the values defined in UART0_baudrate enum!
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* @return none
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* @note It will enable the clock for the ports as required.
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*/
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void GPIO_Initialize(void);
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/**
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* @brief Configure given pin to behave as input or output.
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* @param pin Pin to configure. Must be one of the values defined in FRDM_kit_pin enum!
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* @param mode Mode to use for the pin. Can be INPUT, OUTPUT or INPUT_PULLUP.
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* @return none
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* @note
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*/
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void pinMode(FRDM_kit_pin pin, FRDM_kit_pinmode mode );
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/**
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* @brief Set value for given pin. The pin must be configured as output with pinMode first!
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* @param pin Pin to set. Must be one of the values defined in FRDM_kit_pin enum!
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* @param value Value to write to the pin. The value can be HIGH or LOW.
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* @return none
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* @note
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*/
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void pinWrite(FRDM_kit_pin pin, uint8_t value );
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/**
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* @brief Read value on given pin. The pin must be configured as input with pinMode first!
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* @param pin Pin to read from. Must be one of the values defined in FRDM_kit_pin enum!
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* @return HIGH or LOW value depending on the voltage level on the pin.
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* @note
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*/
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uint8_t pinRead(FRDM_kit_pin pin);
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/*@} end of UTB_FRDM_NewDriver */
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#endif /* UTBFRDM_DRV_ name _H */
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