New main.c for phivu

/**
  ******************************************************************************
  * @file    GPIO/GPIO_IOToggle/main.c
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    04-August-2014
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f4xx.h"
#include "string.h"
#include "stdio.h"

/* Private typedef -----------------------------------------------------------*/
GPIO_InitTypeDef  GPIOHandle;
USART_InitTypeDef USARTHandle;
NVIC_InitTypeDef    NVICHandle;
EXTI_InitTypeDef EXTIHandle;

/* Private define ------------------------------------------------------------*/
//static void GPIO_Config(void);
static void USART2_Config(void);
static void EXTI9_5_Config(void);
static void TM_Delay_Init(void);
static void TM_DelayMicros(uint32_t micros);
static void TM_DelayMillis(uint32_t millis);

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint32_t multiplier;
int pulsesv;


/* We need to implement own __FILE struct */
/* FILE struct is used from __FILE */
struct __FILE {
    int dummy;
};
/* You need this if you want use printf */
/* Struct FILE is implemented in stdio.h */
FILE __stdout;

int fputc(int ch, FILE *f) {
    /* Do your stuff here */
    /* Send your custom byte */
    /* Send byte to USART */
    USART_SendData(USART2, (uint8_t) ch);

   /* Loop until the end of transmission */
   while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET)
   {}

    /* If everything is OK, you have to return character written */
    return ch;
    /* If character is not correct, you can return EOF (-1) to stop writing */
    //return -1;
}

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
  USART2_Config();
    EXTI9_5_Config();
    TM_Delay_Init();
    printf("Value pulse:");
    printf("%d\n",pulsesv);
    TM_DelayMicros(100);
    while (1)
  {

     }
}

/**
  * @brief  Congig USART2
  * @param  None
  * @retval None
  */


void USART2_Config()
{
    /* ADDED BY Tilen start */
    GPIO_InitTypeDef GPIO_InitStruct;

    /* Enable clock for GPIOA */
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);

    /* Set alternating function to USART 2, PA2: TX; PA3: RX */
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_USART2);
    GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_USART2);

    /* Set pin settings, alternate function */
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
    GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
    GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
    /* Initialize pins for USART2 */
    GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Enable clock for USART2 */
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);

    /* ADDED BY Tilen end */

    /* USARTx configuration ------------------------------------------------------*/
  /* USARTx configured as follows:
        - BaudRate = 9600 baud
        - Word Length = 8 Bits
        - Two Stop Bit
        - Odd parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
    USARTHandle.USART_BaudRate = 115200;
    USARTHandle.USART_WordLength = USART_WordLength_8b;
    USARTHandle.USART_StopBits = USART_StopBits_2;
    USARTHandle.USART_Parity = USART_Parity_Odd;
    USARTHandle.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USARTHandle.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

    USART_Init(USART2, &USARTHandle);

    USART_Cmd(USART2, ENABLE);
}


/**
  * @brief  Congig EXTI9-15 PA8 and PA9
  * @param  None
  * @retval None
  */
void EXTI9_5_Config()
{
    /* Enable GPIOA clock */
  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
  /* Enable SYSCFG clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

    /* Configure PA8 and PA9 pin as input floating */
  GPIOHandle.GPIO_Mode = GPIO_Mode_IN;
  GPIOHandle.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIOHandle.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
  GPIO_Init(GPIOA, &GPIOHandle);

  /* Connect EXTI Line0 to PA8 and PA9 pin */
  SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource8);
    SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource9);

     /* Configure EXTI Line 8 and Line 9*/
  EXTIHandle.EXTI_Line = EXTI_Line8 | EXTI_Line9;
  EXTIHandle.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTIHandle.EXTI_Trigger = EXTI_Trigger_Rising;
  EXTIHandle.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTIHandle);

    /* Enable and set EXTI Line 8 & 9 Interrupt to the lowest priority */
  NVICHandle.NVIC_IRQChannel = EXTI9_5_IRQn;
  NVICHandle.NVIC_IRQChannelPreemptionPriority = 0;
  NVICHandle.NVIC_IRQChannelSubPriority = 0;
  NVICHandle.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVICHandle);
}




/**
  * @brief  Congig delay ms and us
  * @param  None
  * @retval None
  */

void TM_Delay_Init(void) {
    RCC_ClocksTypeDef RCC_Clocks;

    /* Get system clocks */
    RCC_GetClocksFreq(&RCC_Clocks);

    /* While loop takes 4 cycles */
    /* For 1 us delay, we need to divide with 4M */
    multiplier = RCC_Clocks.HCLK_Frequency / 4000000;
}

void TM_DelayMicros(uint32_t micros) {
    /* Multiply micros with multipler */
    /* Substract 10 */
    micros = micros * multiplier - 10;
    /* 4 cycles for one loop */
    while (micros--);
}

void TM_DelayMillis(uint32_t millis) {
    /* Multiply millis with multipler */
    /* Substract 10 */
    millis = 1000 * millis * multiplier - 10;
    /* 4 cycles for one loop */
    while (millis--);
}



#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/