/**
 ******************************************************************************
 * @file           : main.c
 * @brief          : Main program body
 ******************************************************************************
 ** This notice applies to any and all portions of this file
 * that are not between comment pairs USER CODE BEGIN and
 * USER CODE END. Other portions of this file, whether
 * inserted by the user or by software development tools
 * are owned by their respective copyright owners.
 *
 * COPYRIGHT(c) 2018 STMicroelectronics
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *   1. Redistributions of source code must retain the above copyright notice,
 *      this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright notice,
 *      this list of conditions and the following disclaimer in the documentation
 *      and/or other materials provided with the distribution.
 *   3. Neither the name of STMicroelectronics nor the names of its contributors
 *      may be used to endorse or promote products derived from this software
 *      without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 ******************************************************************************
 */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f0xx_hal.h"

/* USER CODE BEGIN Includes */
#include "adc.h"
/* USER CODE END Includes */

/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi1;

UART_HandleTypeDef huart1;

/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
uint8_t bufftx[10]  = "Hello!!\n";
uint8_t bufftx1[10] = "AHOJ!!\n";
uint16_t tDelay     = 200;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_SPI1_Init(void);
static void MX_USART1_UART_Init(void);

/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/

#ifdef __GNUC__

# define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
# define PUTCHAR_PROTOTYPE int fputc(int ch, FILE * f)

#endif /* __GNUC__ */

/* USER CODE ENbD PFP */

/* USER CODE BEGIN 0 */
PUTCHAR_PROTOTYPE
{
    HAL_UART_Transmit(&huart1, (uint8_t *) &ch, 1, 0xFFFF);

    return ch;
}

/* USER CODE END 0 */


/**
 * @brief  The application entry point.
 *
 * @retval None
 */
int main(void)
{
    /* USER CODE BEGIN 1 */
    float value = 0;
    /* USER CODE END 1 */

    /* MCU Configuration----------------------------------------------------------*/

    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    HAL_Init();

    /* USER CODE BEGIN Init */

    /* USER CODE END Init */

    /* Configure the system clock */
    SystemClock_Config();

    /* USER CODE BEGIN SysInit */

    /* USER CODE END SysInit */

    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    MX_SPI1_Init();
    MX_USART1_UART_Init();
    /* USER CODE BEGIN 2 */
    ADS1120_init();
    /* USER CODE END 2 */

    /* Infinite loop */
    /* USER CODE BEGIN WHILE */
    while (1)
    {
        for (value = 0; value < 20; value++)
        {
            if (value > 10)
            {
                HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, 1); // Red
                HAL_Delay(200);
                HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, 0); // Red
                HAL_Delay(200);
            }
            else
            {
                HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, 1); // Green
                HAL_Delay(200);
                HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, 0); // Green
                HAL_Delay(200);
            }

            printf("float value: %4.2f\n\r", value);

            HAL_UART_Transmit(&huart1, bufftx, 8, 100);
            HAL_UART_Transmit(&huart1, bufftx1, 7, 100);
            HAL_Delay(200);
        }


        /* USER CODE END WHILE */

        /* USER CODE BEGIN 3 */
    }
    /* USER CODE END 3 */
} /* main */

/**
 * @brief System Clock Configuration
 * @retval None
 */
void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct;
    RCC_ClkInitTypeDef RCC_ClkInitStruct;
    RCC_PeriphCLKInitTypeDef PeriphClkInit;

    /**Initializes the CPU, AHB and APB busses clocks
     */
    RCC_OscInitStruct.OscillatorType      = RCC_OSCILLATORTYPE_HSI;
    RCC_OscInitStruct.HSIState            = RCC_HSI_ON;
    RCC_OscInitStruct.HSICalibrationValue = 16;
    RCC_OscInitStruct.PLL.PLLState        = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource       = RCC_PLLSOURCE_HSI;
    RCC_OscInitStruct.PLL.PLLMUL          = RCC_PLL_MUL12;
    RCC_OscInitStruct.PLL.PREDIV          = RCC_PREDIV_DIV1;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
        _Error_Handler(__FILE__, __LINE__);
    }

    /**Initializes the CPU, AHB and APB busses clocks
     */
    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
      | RCC_CLOCKTYPE_PCLK1;
    RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
    {
        _Error_Handler(__FILE__, __LINE__);
    }

    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
    {
        _Error_Handler(__FILE__, __LINE__);
    }

    /**Configure the Systick interrupt time
     */
    HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / 1000);

    /**Configure the Systick
     */
    HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

    /* SysTick_IRQn interrupt configuration */
    HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
} /* SystemClock_Config */

/* SPI1 init function */
static void MX_SPI1_Init(void)
{
    /* SPI1 parameter configuration*/
    hspi1.Instance               = SPI1;
    hspi1.Init.Mode              = SPI_MODE_MASTER;
    hspi1.Init.Direction         = SPI_DIRECTION_2LINES;
    hspi1.Init.DataSize          = SPI_DATASIZE_8BIT;
    hspi1.Init.CLKPolarity       = SPI_POLARITY_LOW;
    hspi1.Init.CLKPhase          = SPI_PHASE_1EDGE;
    hspi1.Init.NSS               = SPI_NSS_HARD_OUTPUT;
    hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
    hspi1.Init.FirstBit          = SPI_FIRSTBIT_MSB;
    hspi1.Init.TIMode            = SPI_TIMODE_DISABLE;
    hspi1.Init.CRCCalculation    = SPI_CRCCALCULATION_DISABLE;
    hspi1.Init.CRCPolynomial     = 7;
    hspi1.Init.CRCLength         = SPI_CRC_LENGTH_DATASIZE;
    hspi1.Init.NSSPMode          = SPI_NSS_PULSE_ENABLE;
    if (HAL_SPI_Init(&hspi1) != HAL_OK)
    {
        _Error_Handler(__FILE__, __LINE__);
    }
}

/* USART1 init function */
static void MX_USART1_UART_Init(void)
{
    huart1.Instance                    = USART1;
    huart1.Init.BaudRate               = 9600;
    huart1.Init.WordLength             = UART_WORDLENGTH_8B;
    huart1.Init.StopBits               = UART_STOPBITS_1;
    huart1.Init.Parity                 = UART_PARITY_NONE;
    huart1.Init.Mode                   = UART_MODE_TX_RX;
    huart1.Init.HwFlowCtl              = UART_HWCONTROL_NONE;
    huart1.Init.OverSampling           = UART_OVERSAMPLING_16;
    huart1.Init.OneBitSampling         = UART_ONE_BIT_SAMPLE_DISABLE;
    huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
    if (HAL_UART_Init(&huart1) != HAL_OK)
    {
        _Error_Handler(__FILE__, __LINE__);
    }
}

/** Configure pins as
 * Analog
 * Input
 * Output
 * EVENT_OUT
 * EXTI
 */
static void MX_GPIO_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct;

    /* GPIO Ports Clock Enable */
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();

    /*Configure GPIO pin Output Level */
    HAL_GPIO_WritePin(GPIOA, LED_GREEN_Pin | LED_RED_Pin, GPIO_PIN_RESET);

    /*Configure GPIO pin : SPI1_DRDY_Pin */
    GPIO_InitStruct.Pin  = SPI1_DRDY_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(SPI1_DRDY_GPIO_Port, &GPIO_InitStruct);

    /*Configure GPIO pins : LED_GREEN_Pin LED_RED_Pin */
    GPIO_InitStruct.Pin   = LED_GREEN_Pin | LED_RED_Pin;
    GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull  = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
 * @brief  This function is executed in case of error occurrence.
 * @param  file: The file name as string.
 * @param  line: The line in file as a number.
 * @retval None
 */
void _Error_Handler(char *file, int line)
{
    /* USER CODE BEGIN Error_Handler_Debug */
    /* User can add his own implementation to report the HAL error return state */
    while (1)
    { }
    /* USER CODE END Error_Handler_Debug */
}

#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 CODE BEGIN 6 */

    /* User can add his own implementation to report the file name and line number,
     * tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
    /* USER CODE END 6 */
}

#endif /* USE_FULL_ASSERT */

/**
 * @}
 */

/**
 * @}
 */

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