Cortex Challenge Team / Mbed 2 deprecated DiscoveryF3-LED_and_Button

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Dependencies:   mbed

main.cpp@1:73d739c64e4c, 2015-03-21 (annotated)

Committer:
dousape2
Date:
Sat Mar 21 11:21:32 2015 +0000
Revision:
1:73d739c64e4c
Parent:
0:1f39a86b8daa
Child:
2:87dc86a7288b
Button added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dousape2 1:73d739c64e4c 1 /**********************************************************************************
dousape2 1:73d739c64e4c 2 * @file main.cpp
dousape2 1:73d739c64e4c 3 * @author Name
dousape2 1:73d739c64e4c 4 * @version V0.1
dousape2 1:73d739c64e4c 5 * @date 09-March-2015
dousape2 1:73d739c64e4c 6 * @brief LEDs blinking with ticker.
dousape2 1:73d739c64e4c 7 * With push button pressed, LEDs turn on.
dousape2 1:73d739c64e4c 8 ***********************************************************************************/
dousape2 1:73d739c64e4c 9
dousape2 1:73d739c64e4c 10 /**********************************************************************************/
dousape2 1:73d739c64e4c 11 /* Table of used pins on STM32F3 Discovery kit */
dousape2 1:73d739c64e4c 12 /**********************************************************************************/
dousape2 1:73d739c64e4c 13 /* Discovery pin | ST Nucleo F303RE pin | peripheral */
dousape2 1:73d739c64e4c 14 /* PA_0 | PC_13 | User button */
dousape2 1:73d739c64e4c 15 /* PE_8 to PE_15 | PA_5 | LEDs */
dousape2 1:73d739c64e4c 16 /**********************************************************************************/
dousape2 1:73d739c64e4c 17
dousape2 1:73d739c64e4c 18 /* Includes ----------------------------------------------------------------------*/
dousape2 1:73d739c64e4c 19
dousape2 0:1f39a86b8daa 20 #include "mbed.h"
dousape2 1:73d739c64e4c 21 #include "stm32f3xx_hal_gpio.h" //library necessary to blink LEDs on STM32F3 discovery
dousape2 0:1f39a86b8daa 22
dousape2 1:73d739c64e4c 23 /* Defines -----------------------------------------------------------------------*/
dousape2 1:73d739c64e4c 24
dousape2 1:73d739c64e4c 25 // In some mbed libraries are not included these definines
dousape2 1:73d739c64e4c 26
dousape2 1:73d739c64e4c 27 //#define GPIOE_BASE (AHB2PERIPH_BASE + 0x1000)
dousape2 1:73d739c64e4c 28 //#define GPIOE ((GPIO_TypeDef *) GPIOE_BASE)
dousape2 1:73d739c64e4c 29 //#define RCC_AHBENR_GPIOEEN ((uint32_t)0x00200000)
dousape2 1:73d739c64e4c 30 //#define RCC_AHBPeriph_GPIOE RCC_AHBENR_GPIOEEN
dousape2 1:73d739c64e4c 31
dousape2 1:73d739c64e4c 32
dousape2 1:73d739c64e4c 33 //mbed - initialization of peripherals
dousape2 1:73d739c64e4c 34 InterruptIn button(PA_0); // inicialize button on STM32F3 discovery
dousape2 1:73d739c64e4c 35 Ticker toggle_ticker; // inicialize ticker
dousape2 1:73d739c64e4c 36
dousape2 1:73d739c64e4c 37
dousape2 1:73d739c64e4c 38 /* Functions----------------------------------------------------------------------*/
dousape2 1:73d739c64e4c 39
dousape2 1:73d739c64e4c 40 /*******************************************************************************
dousape2 1:73d739c64e4c 41 * Function Name : toggle.
dousape2 1:73d739c64e4c 42 * Description : Blinks whit 8 LEDs if ticker interval reached.
dousape2 1:73d739c64e4c 43 * Input : None.
dousape2 1:73d739c64e4c 44 * Output : Blinks whit 8 LEDs.
dousape2 1:73d739c64e4c 45 * Return : None.
dousape2 1:73d739c64e4c 46 *******************************************************************************/
dousape2 0:1f39a86b8daa 47
dousape2 0:1f39a86b8daa 48 void toggle()
dousape2 0:1f39a86b8daa 49 {
dousape2 1:73d739c64e4c 50 // Toggle pins PE_15 to PE_8 , where LEDs are attached to
dousape2 1:73d739c64e4c 51 HAL_GPIO_TogglePin(GPIOE,GPIO_PIN_15 | GPIO_PIN_14 | GPIO_PIN_13 | GPIO_PIN_12 | GPIO_PIN_11 | GPIO_PIN_10 | GPIO_PIN_9 | GPIO_PIN_8);
dousape2 0:1f39a86b8daa 52 }
dousape2 0:1f39a86b8daa 53
dousape2 1:73d739c64e4c 54 /*******************************************************************************
dousape2 1:73d739c64e4c 55 * Function Name : pressed.
dousape2 1:73d739c64e4c 56 * Description : Set LEDs on if someone pressed the button.
dousape2 1:73d739c64e4c 57 * Input : None.
dousape2 1:73d739c64e4c 58 * Output : None.
dousape2 1:73d739c64e4c 59 * Return : None.
dousape2 1:73d739c64e4c 60 *******************************************************************************/
dousape2 1:73d739c64e4c 61 void pressed()
dousape2 1:73d739c64e4c 62 {
dousape2 1:73d739c64e4c 63 // Switch pins PE_15 to PE_8 to log. 1 , where LEDs are attached to
dousape2 1:73d739c64e4c 64 HAL_GPIO_WritePin(GPIOE , GPIO_PIN_15 | GPIO_PIN_14 | GPIO_PIN_13 | GPIO_PIN_12 | GPIO_PIN_11 | GPIO_PIN_10 | GPIO_PIN_9 | GPIO_PIN_8 , GPIO_PIN_SET);
dousape2 1:73d739c64e4c 65 }
dousape2 1:73d739c64e4c 66
dousape2 1:73d739c64e4c 67 /***********************************************************************************
dousape2 1:73d739c64e4c 68 * Function Name : main.
dousape2 1:73d739c64e4c 69 * Description : Main routine.
dousape2 1:73d739c64e4c 70 * Input : None.
dousape2 1:73d739c64e4c 71 * Output : None.
dousape2 1:73d739c64e4c 72 * Return : None.
dousape2 1:73d739c64e4c 73 ***********************************************************************************/
dousape2 0:1f39a86b8daa 74
dousape2 0:1f39a86b8daa 75 int main()
dousape2 0:1f39a86b8daa 76 {
dousape2 0:1f39a86b8daa 77 //inicialize power (clock source) to port E (GPIOE)
dousape2 0:1f39a86b8daa 78 __GPIOE_CLK_ENABLE();
dousape2 1:73d739c64e4c 79 // RCC->AHBENR |= RCC_AHBPeriph_GPIOE; // if __GPIOE_CLK_ENABLE(); is not defined
dousape2 0:1f39a86b8daa 80
dousape2 0:1f39a86b8daa 81 //inicialize pins
dousape2 1:73d739c64e4c 82 // atructure to set GPIO
dousape2 0:1f39a86b8daa 83 GPIO_InitTypeDef GPIO_InitStruct;
dousape2 1:73d739c64e4c 84 //Specifies the operating mode for the selected pins.
dousape2 1:73d739c64e4c 85 // Output Push Pull Mode
dousape2 0:1f39a86b8daa 86 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
dousape2 1:73d739c64e4c 87 //Specifies the Pull-up or Pull-Down activation for the selected pins.
dousape2 1:73d739c64e4c 88 //Pull-up activation
dousape2 0:1f39a86b8daa 89 GPIO_InitStruct.Pull = GPIO_PULLUP;
dousape2 1:73d739c64e4c 90 //Specifies the speed for the selected pins.
dousape2 1:73d739c64e4c 91 //High speed
dousape2 0:1f39a86b8daa 92 GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
dousape2 1:73d739c64e4c 93 //Specifies the GPIO pins to be configured.
dousape2 1:73d739c64e4c 94 //Pins 15 to 8
dousape2 1:73d739c64e4c 95 GPIO_InitStruct.Pin = GPIO_PIN_15 | GPIO_PIN_14 | GPIO_PIN_13 | GPIO_PIN_12 | GPIO_PIN_11 | GPIO_PIN_10 | GPIO_PIN_9 | GPIO_PIN_8;
dousape2 1:73d739c64e4c 96
dousape2 1:73d739c64e4c 97 //Inicialize pins PE_15 to PE_8
dousape2 0:1f39a86b8daa 98 HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
dousape2 0:1f39a86b8daa 99
dousape2 1:73d739c64e4c 100 // button was pressed, call function pressed
dousape2 1:73d739c64e4c 101 button.fall(&pressed);
dousape2 0:1f39a86b8daa 102
dousape2 1:73d739c64e4c 103 // Init the ticker with the address of the function (toggle) to be attached and the interval (1 s)
dousape2 1:73d739c64e4c 104 toggle_ticker.attach(&toggle, 1);
dousape2 1:73d739c64e4c 105
dousape2 1:73d739c64e4c 106 // infinity loop
dousape2 0:1f39a86b8daa 107 while (1) {
dousape2 0:1f39a86b8daa 108 }
dousape2 0:1f39a86b8daa 109 }