Split app code and third party libraries

1 files changed, 0 insertions, 1335 deletions

diff --git a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_spi.c b/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_spi.c
deleted file mode 100644
index 3acb886..0000000
--- a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_spi.c
+++ /dev/null
@@ -1,1335 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    stm32f0xx_spi.c
-  * @author  MCD Application Team
-  * @version V1.3.0
-  * @date    16-January-2014
-  * @brief   This file provides firmware functions to manage the following 
-  *          functionalities of the Serial peripheral interface (SPI):
-  *           + Initialization and Configuration
-  *           + Data transfers functions
-  *           + Hardware CRC Calculation
-  *           + DMA transfers management
-  *           + Interrupts and flags management
-  *
-  *  @verbatim
-
- ===============================================================================
-                       ##### How to use this driver #####
- ===============================================================================
-    [..]
-        (#) Enable peripheral clock using RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE)
-            function for SPI1 or using RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE)
-            function for SPI2.
-  
-        (#) Enable SCK, MOSI, MISO and NSS GPIO clocks using 
-            RCC_AHBPeriphClockCmd() function. 
-  
-        (#) Peripherals alternate function: 
-            (++) Connect the pin to the desired peripherals' Alternate 
-                 Function (AF) using GPIO_PinAFConfig() function.
-            (++) Configure the desired pin in alternate function by:
-                 GPIO_InitStruct->GPIO_Mode = GPIO_Mode_AF.
-            (++) Select the type, pull-up/pull-down and output speed via 
-                 GPIO_PuPd, GPIO_OType and GPIO_Speed members.
-            (++) Call GPIO_Init() function.
-  
-        (#) Program the Polarity, Phase, First Data, Baud Rate Prescaler, Slave 
-            Management, Peripheral Mode and CRC Polynomial values using the SPI_Init()
-            function.In I2S mode, program the Mode, Standard, Data Format, MCLK 
-            Output, Audio frequency and Polarity using I2S_Init() function.
-  
-        (#) Configure the FIFO threshold using SPI_RxFIFOThresholdConfig() to select 
-            at which threshold the RXNE event is generated.
-            
-        (#) Enable the NVIC and the corresponding interrupt using the function 
-            SPI_ITConfig() if you need to use interrupt mode. 
-  
-        (#) When using the DMA mode 
-            (++) Configure the DMA using DMA_Init() function.
-            (++) Active the needed channel Request using SPI_I2S_DMACmd() function.
-   
-        (#) Enable the SPI using the SPI_Cmd() function or enable the I2S using
-            I2S_Cmd().
-   
-        (#) Enable the DMA using the DMA_Cmd() function when using DMA mode. 
-  
-        (#) Optionally, you can enable/configure the following parameters without
-            re-initialization (i.e there is no need to call again SPI_Init() function):
-            (++) When bidirectional mode (SPI_Direction_1Line_Rx or SPI_Direction_1Line_Tx)
-                 is programmed as Data direction parameter using the SPI_Init() 
-                 function it can be possible to switch between SPI_Direction_Tx 
-                 or SPI_Direction_Rx using the SPI_BiDirectionalLineConfig() function.
-            (++) When SPI_NSS_Soft is selected as Slave Select Management parameter 
-                 using the SPI_Init() function it can be possible to manage the 
-                 NSS internal signal using the SPI_NSSInternalSoftwareConfig() function.
-            (++) Reconfigure the data size using the SPI_DataSizeConfig() function.
-            (++) Enable or disable the SS output using the SPI_SSOutputCmd() function.  
-  
-        (#) To use the CRC Hardware calculation feature refer to the Peripheral 
-            CRC hardware Calculation subsection.
-  
-    @endverbatim 
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT 2014 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 "stm32f0xx_spi.h"
-#include "stm32f0xx_rcc.h"
-#include "stm32f0xx_conf.h"
-
-/** @addtogroup STM32F0xx_StdPeriph_Driver
-  * @{
-  */
-
-/** @defgroup SPI
-  * @brief SPI driver modules
-  * @{
-  */
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* SPI registers Masks */
-#define CR1_CLEAR_MASK       ((uint16_t)0x3040)
-#define CR1_CLEAR_MASK2      ((uint16_t)0xFFFB)
-#define CR2_LDMA_MASK        ((uint16_t)0x9FFF)
-
-#define I2SCFGR_CLEAR_Mask   ((uint16_t)0xF040)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup SPI_Private_Functions
-  * @{
-  */
-
-/** @defgroup SPI_Group1 Initialization and Configuration functions
- *  @brief   Initialization and Configuration functions 
- *
-@verbatim   
- ===============================================================================
-           ##### Initialization and Configuration functions #####
- ===============================================================================
-    [..] This section provides a set of functions allowing to initialize the SPI Direction,
-         SPI Mode, SPI Data Size, SPI Polarity, SPI Phase, SPI NSS Management, SPI Baud
-         Rate Prescaler, SPI First Bit and SPI CRC Polynomial.
-
-    [..] The SPI_Init() function follows the SPI configuration procedures for Master mode
-         and Slave mode (details for these procedures are available in reference manual).
-         
-    [..] When the Software NSS management (SPI_InitStruct->SPI_NSS = SPI_NSS_Soft) is selected,
-         use the following function to manage the NSS bit:
-         void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft);
-
-    [..] In Master mode, when the Hardware NSS management (SPI_InitStruct->SPI_NSS = SPI_NSS_Hard)
-         is selected, use the follwoing function to enable the NSS output feature.
-         void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
-
-    [..] The NSS pulse mode can be managed by the SPI TI mode when enabling it using the following function:
-         void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
-         And it can be managed by software in the SPI Motorola mode using this function: 
-         void SPI_NSSPulseModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState);
-
-    [..] This section provides also functions to initialize the I2S Mode, Standard, 
-         Data Format, MCLK Output, Audio frequency and Polarity.
-  
-    [..] The I2S_Init() function follows the I2S configuration procedures for Master mode
-         and Slave mode.
-  
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Deinitializes the SPIx peripheral registers to their default
-  *         reset values.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         I2S mode is not supported for STM32F030 devices.      
-  * @retval None
-  */
-void SPI_I2S_DeInit(SPI_TypeDef* SPIx)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-
-  if (SPIx == SPI1)
-  {
-    /* Enable SPI1 reset state */
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, ENABLE);
-    /* Release SPI1 from reset state */
-    RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, DISABLE);
-  }
-  else
-  {
-    if (SPIx == SPI2)
-    {
-      /* Enable SPI2 reset state */
-      RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, ENABLE);
-      /* Release SPI2 from reset state */
-      RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, DISABLE);
-    }
-  }
-}
-
-/**
-  * @brief  Fills each SPI_InitStruct member with its default value.
-  * @param  SPI_InitStruct: pointer to a SPI_InitTypeDef structure which will be initialized.
-  * @retval None
-  */
-void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct)
-{
-/*--------------- Reset SPI init structure parameters values -----------------*/
-  /* Initialize the SPI_Direction member */
-  SPI_InitStruct->SPI_Direction = SPI_Direction_2Lines_FullDuplex;
-  /* Initialize the SPI_Mode member */
-  SPI_InitStruct->SPI_Mode = SPI_Mode_Slave;
-  /* Initialize the SPI_DataSize member */
-  SPI_InitStruct->SPI_DataSize = SPI_DataSize_8b;
-  /* Initialize the SPI_CPOL member */
-  SPI_InitStruct->SPI_CPOL = SPI_CPOL_Low;
-  /* Initialize the SPI_CPHA member */
-  SPI_InitStruct->SPI_CPHA = SPI_CPHA_1Edge;
-  /* Initialize the SPI_NSS member */
-  SPI_InitStruct->SPI_NSS = SPI_NSS_Hard;
-  /* Initialize the SPI_BaudRatePrescaler member */
-  SPI_InitStruct->SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
-  /* Initialize the SPI_FirstBit member */
-  SPI_InitStruct->SPI_FirstBit = SPI_FirstBit_MSB;
-  /* Initialize the SPI_CRCPolynomial member */
-  SPI_InitStruct->SPI_CRCPolynomial = 7;
-}
-
-/**
-  * @brief  Initializes the SPIx peripheral according to the specified 
-  *         parameters in the SPI_InitStruct.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  SPI_InitStruct: pointer to a SPI_InitTypeDef structure that
-  *         contains the configuration information for the specified SPI peripheral.
-  * @retval None
-  */
-void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct)
-{
-  uint16_t tmpreg = 0;
-
-  /* check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-
-  /* Check the SPI parameters */
-  assert_param(IS_SPI_DIRECTION_MODE(SPI_InitStruct->SPI_Direction));
-  assert_param(IS_SPI_MODE(SPI_InitStruct->SPI_Mode));
-  assert_param(IS_SPI_DATA_SIZE(SPI_InitStruct->SPI_DataSize));
-  assert_param(IS_SPI_CPOL(SPI_InitStruct->SPI_CPOL));
-  assert_param(IS_SPI_CPHA(SPI_InitStruct->SPI_CPHA));
-  assert_param(IS_SPI_NSS(SPI_InitStruct->SPI_NSS));
-  assert_param(IS_SPI_BAUDRATE_PRESCALER(SPI_InitStruct->SPI_BaudRatePrescaler));
-  assert_param(IS_SPI_FIRST_BIT(SPI_InitStruct->SPI_FirstBit));
-  assert_param(IS_SPI_CRC_POLYNOMIAL(SPI_InitStruct->SPI_CRCPolynomial));
-
-  /*---------------------------- SPIx CR1 Configuration ------------------------*/
-  /* Get the SPIx CR1 value */
-  tmpreg = SPIx->CR1;
-  /* Clear BIDIMode, BIDIOE, RxONLY, SSM, SSI, LSBFirst, BR, CPOL and CPHA bits */
-  tmpreg &= CR1_CLEAR_MASK;
-  /* Configure SPIx: direction, NSS management, first transmitted bit, BaudRate prescaler
-  master/slave mode, CPOL and CPHA */
-  /* Set BIDImode, BIDIOE and RxONLY bits according to SPI_Direction value */
-  /* Set SSM, SSI bit according to SPI_NSS values */
-  /* Set LSBFirst bit according to SPI_FirstBit value */
-  /* Set BR bits according to SPI_BaudRatePrescaler value */
-  /* Set CPOL bit according to SPI_CPOL value */
-  /* Set CPHA bit according to SPI_CPHA value */
-  tmpreg |= (uint16_t)((uint32_t)SPI_InitStruct->SPI_Direction | SPI_InitStruct->SPI_FirstBit |
-                      SPI_InitStruct->SPI_CPOL | SPI_InitStruct->SPI_CPHA |
-                      SPI_InitStruct->SPI_NSS | SPI_InitStruct->SPI_BaudRatePrescaler);  
-  /* Write to SPIx CR1 */
-  SPIx->CR1 = tmpreg;
-  /*-------------------------Data Size Configuration -----------------------*/
-  /* Get the SPIx CR2 value */
-  tmpreg = SPIx->CR2;
-  /* Clear DS[3:0] bits */
-  tmpreg &=(uint16_t)~SPI_CR2_DS;
-  /* Configure SPIx: Data Size */
-  tmpreg |= (uint16_t)(SPI_InitStruct->SPI_DataSize);
-  /* Write to SPIx CR2 */
-  SPIx->CR2 = tmpreg;
-  
-  /*---------------------------- SPIx CRCPOLY Configuration --------------------*/
-  /* Write to SPIx CRCPOLY */
-  SPIx->CRCPR = SPI_InitStruct->SPI_CRCPolynomial;
-  
-  /*---------------------------- SPIx CR1 Configuration ------------------------*/
-  /* Get the SPIx CR1 value */
-  tmpreg = SPIx->CR1;
-  /* Clear MSTR bit */
-  tmpreg &= CR1_CLEAR_MASK2;
-  /* Configure SPIx: master/slave mode */  
-  /* Set MSTR bit according to SPI_Mode */
-  tmpreg |= (uint16_t)((uint32_t)SPI_InitStruct->SPI_Mode);  
-  /* Write to SPIx CR1 */
-  SPIx->CR1 = tmpreg;  
-  
-  /* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */
-  SPIx->I2SCFGR &= (uint16_t)~((uint16_t)SPI_I2SCFGR_I2SMOD);
-}
-
-/**
-  * @brief  Fills each I2S_InitStruct member with its default value.
-  * @note   This mode is not supported for STM32F030 devices.  
-  * @param  I2S_InitStruct: pointer to a I2S_InitTypeDef structure which will be initialized.
-  * @retval None
-  */
-void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct)
-{
-/*--------------- Reset I2S init structure parameters values -----------------*/
-  /* Initialize the I2S_Mode member */
-  I2S_InitStruct->I2S_Mode = I2S_Mode_SlaveTx;
-
-  /* Initialize the I2S_Standard member */
-  I2S_InitStruct->I2S_Standard = I2S_Standard_Phillips;
-
-  /* Initialize the I2S_DataFormat member */
-  I2S_InitStruct->I2S_DataFormat = I2S_DataFormat_16b;
-
-  /* Initialize the I2S_MCLKOutput member */
-  I2S_InitStruct->I2S_MCLKOutput = I2S_MCLKOutput_Disable;
-
-  /* Initialize the I2S_AudioFreq member */
-  I2S_InitStruct->I2S_AudioFreq = I2S_AudioFreq_Default;
-
-  /* Initialize the I2S_CPOL member */
-  I2S_InitStruct->I2S_CPOL = I2S_CPOL_Low;
-}
-
-/**
-  * @brief  Initializes the SPIx peripheral according to the specified 
-  *         parameters in the I2S_InitStruct.
-  * @note   This mode is not supported for STM32F030 devices.  
-  * @param  SPIx: where x can be 1 to select the SPI peripheral (configured in I2S mode).  
-  * @param  I2S_InitStruct: pointer to an I2S_InitTypeDef structure that
-  *         contains the configuration information for the specified SPI peripheral
-  *         configured in I2S mode.
-  * @note   This function calculates the optimal prescaler needed to obtain the most 
-  *         accurate audio frequency (depending on the I2S clock source, the PLL values 
-  *         and the product configuration). But in case the prescaler value is greater 
-  *         than 511, the default value (0x02) will be configured instead.
-  * @retval None
-  */
-void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct)
-{
-  uint16_t tmpreg = 0, i2sdiv = 2, i2sodd = 0, packetlength = 1;
-  uint32_t tmp = 0;
-  RCC_ClocksTypeDef RCC_Clocks;
-  uint32_t sourceclock = 0;
-
-  /* Check the I2S parameters */
-  assert_param(IS_SPI_1_PERIPH(SPIx));
-  assert_param(IS_I2S_MODE(I2S_InitStruct->I2S_Mode));
-  assert_param(IS_I2S_STANDARD(I2S_InitStruct->I2S_Standard));
-  assert_param(IS_I2S_DATA_FORMAT(I2S_InitStruct->I2S_DataFormat));
-  assert_param(IS_I2S_MCLK_OUTPUT(I2S_InitStruct->I2S_MCLKOutput));
-  assert_param(IS_I2S_AUDIO_FREQ(I2S_InitStruct->I2S_AudioFreq));
-  assert_param(IS_I2S_CPOL(I2S_InitStruct->I2S_CPOL));  
-
-/*----------------------- SPIx I2SCFGR & I2SPR Configuration -----------------*/
-  /* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */
-  SPIx->I2SCFGR &= I2SCFGR_CLEAR_Mask; 
-  SPIx->I2SPR = 0x0002;
-
-  /* Get the I2SCFGR register value */
-  tmpreg = SPIx->I2SCFGR;
-
-  /* If the default value has to be written, reinitialize i2sdiv and i2sodd*/
-  if(I2S_InitStruct->I2S_AudioFreq == I2S_AudioFreq_Default)
-  {
-    i2sodd = (uint16_t)0;
-    i2sdiv = (uint16_t)2;   
-  }
-  /* If the requested audio frequency is not the default, compute the prescaler */
-  else
-  {
-    /* Check the frame length (For the Prescaler computing) */
-    if(I2S_InitStruct->I2S_DataFormat == I2S_DataFormat_16b)
-    {
-      /* Packet length is 16 bits */
-      packetlength = 1;
-    }
-    else
-    {
-      /* Packet length is 32 bits */
-      packetlength = 2;
-    }
-
-    /* I2S Clock source is System clock: Get System Clock frequency */
-    RCC_GetClocksFreq(&RCC_Clocks);      
-
-    /* Get the source clock value: based on System Clock value */
-    sourceclock = RCC_Clocks.SYSCLK_Frequency;    
-
-    /* Compute the Real divider depending on the MCLK output state with a floating point */
-    if(I2S_InitStruct->I2S_MCLKOutput == I2S_MCLKOutput_Enable)
-    {
-      /* MCLK output is enabled */
-      tmp = (uint16_t)(((((sourceclock / 256) * 10) / I2S_InitStruct->I2S_AudioFreq)) + 5);
-    }
-    else
-    {
-      /* MCLK output is disabled */
-      tmp = (uint16_t)(((((sourceclock / (32 * packetlength)) *10 ) / I2S_InitStruct->I2S_AudioFreq)) + 5);
-    }
-    
-    /* Remove the floating point */
-    tmp = tmp / 10;
-
-    /* Check the parity of the divider */
-    i2sodd = (uint16_t)(tmp & (uint16_t)0x0001);
-
-    /* Compute the i2sdiv prescaler */
-    i2sdiv = (uint16_t)((tmp - i2sodd) / 2);
-
-    /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */
-    i2sodd = (uint16_t) (i2sodd << 8);
-  }
-
-  /* Test if the divider is 1 or 0 or greater than 0xFF */
-  if ((i2sdiv < 2) || (i2sdiv > 0xFF))
-  {
-    /* Set the default values */
-    i2sdiv = 2;
-    i2sodd = 0;
-  }
-
-  /* Write to SPIx I2SPR register the computed value */
-  SPIx->I2SPR = (uint16_t)(i2sdiv | (uint16_t)(i2sodd | (uint16_t)I2S_InitStruct->I2S_MCLKOutput));
-
-  /* Configure the I2S with the SPI_InitStruct values */
-  tmpreg |= (uint16_t)(SPI_I2SCFGR_I2SMOD | (uint16_t)(I2S_InitStruct->I2S_Mode | \
-                  (uint16_t)(I2S_InitStruct->I2S_Standard | (uint16_t)(I2S_InitStruct->I2S_DataFormat | \
-                  (uint16_t)I2S_InitStruct->I2S_CPOL))));
-
-  /* Write to SPIx I2SCFGR */
-  SPIx->I2SCFGR = tmpreg;
-}
-
-/**
-  * @brief  Enables or disables the specified SPI peripheral.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  NewState: new state of the SPIx peripheral. 
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI peripheral */
-    SPIx->CR1 |= SPI_CR1_SPE;
-  }
-  else
-  {
-    /* Disable the selected SPI peripheral */
-    SPIx->CR1 &= (uint16_t)~((uint16_t)SPI_CR1_SPE);
-  }
-}
-
-/**
-  * @brief  Enables or disables the TI Mode.
-  *   
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called. 
-  * @note   When TI mode is selected, the control bits SSM, SSI, CPOL and CPHA 
-  *         are not taken into consideration and are configured by hardware 
-  *         respectively to the TI mode requirements.
-  *    
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  NewState: new state of the selected SPI TI communication mode.
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_TIModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the TI mode for the selected SPI peripheral */
-    SPIx->CR2 |= SPI_CR2_FRF;
-  }
-  else
-  {
-    /* Disable the TI mode for the selected SPI peripheral */
-    SPIx->CR2 &= (uint16_t)~((uint16_t)SPI_CR2_FRF);
-  }
-}
-
-/**
-  * @brief  Enables or disables the specified SPI peripheral (in I2S mode).
-  * @note   This mode is not supported for STM32F030 devices.    
-  * @param  SPIx: where x can be 1 to select the SPI peripheral.
-  * @param  NewState: new state of the SPIx peripheral. 
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_1_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI peripheral in I2S mode */
-    SPIx->I2SCFGR |= SPI_I2SCFGR_I2SE;
-  }
-  else
-  {
-    /* Disable the selected SPI peripheral in I2S mode */
-    SPIx->I2SCFGR &= (uint16_t)~((uint16_t)SPI_I2SCFGR_I2SE);
-  }
-}
-
-/**
-  * @brief  Configures the data size for the selected SPI.
-  * @param  SPIx: where x can be 1 or 2  to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  SPI_DataSize: specifies the SPI data size.
-  *         For the SPIx peripheral this parameter can be one of the following values:
-  *            @arg SPI_DataSize_4b: Set data size to 4 bits
-  *            @arg SPI_DataSize_5b: Set data size to 5 bits
-  *            @arg SPI_DataSize_6b: Set data size to 6 bits
-  *            @arg SPI_DataSize_7b: Set data size to 7 bits
-  *            @arg SPI_DataSize_8b: Set data size to 8 bits
-  *            @arg SPI_DataSize_9b: Set data size to 9 bits
-  *            @arg SPI_DataSize_10b: Set data size to 10 bits
-  *            @arg SPI_DataSize_11b: Set data size to 11 bits
-  *            @arg SPI_DataSize_12b: Set data size to 12 bits
-  *            @arg SPI_DataSize_13b: Set data size to 13 bits
-  *            @arg SPI_DataSize_14b: Set data size to 14 bits
-  *            @arg SPI_DataSize_15b: Set data size to 15 bits
-  *            @arg SPI_DataSize_16b: Set data size to 16 bits
-  * @retval None
-  */
-void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize)
-{
-  uint16_t tmpreg = 0;
-  
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_DATA_SIZE(SPI_DataSize));
-  /* Read the CR2 register */
-  tmpreg = SPIx->CR2;
-  /* Clear DS[3:0] bits */
-  tmpreg &= (uint16_t)~SPI_CR2_DS;
-  /* Set new DS[3:0] bits value */
-  tmpreg |= SPI_DataSize;
-  SPIx->CR2 = tmpreg;
-}
-
-/**
-  * @brief  Configures the FIFO reception threshold for the selected SPI.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  SPI_RxFIFOThreshold: specifies the FIFO reception threshold.
-  *          This parameter can be one of the following values:
-  *            @arg SPI_RxFIFOThreshold_HF: RXNE event is generated if the FIFO 
-  *                                         level is greater or equal to 1/2. 
-  *            @arg SPI_RxFIFOThreshold_QF: RXNE event is generated if the FIFO 
-  *                                         level is greater or equal to 1/4. 
-  * @retval None
-  */
-void SPI_RxFIFOThresholdConfig(SPI_TypeDef* SPIx, uint16_t SPI_RxFIFOThreshold)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_RX_FIFO_THRESHOLD(SPI_RxFIFOThreshold));
-
-  /* Clear FRXTH bit */
-  SPIx->CR2 &= (uint16_t)~((uint16_t)SPI_CR2_FRXTH);
-
-  /* Set new FRXTH bit value */
-  SPIx->CR2 |= SPI_RxFIFOThreshold;
-}
-
-/**
-  * @brief  Selects the data transfer direction in bidirectional mode for the specified SPI.
-  * @param  SPIx: where x can be 1 or 2  to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  SPI_Direction: specifies the data transfer direction in bidirectional mode. 
-  *          This parameter can be one of the following values:
-  *            @arg SPI_Direction_Tx: Selects Tx transmission direction
-  *            @arg SPI_Direction_Rx: Selects Rx receive direction
-  * @retval None
-  */
-void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_DIRECTION(SPI_Direction));
-  if (SPI_Direction == SPI_Direction_Tx)
-  {
-    /* Set the Tx only mode */
-    SPIx->CR1 |= SPI_Direction_Tx;
-  }
-  else
-  {
-    /* Set the Rx only mode */
-    SPIx->CR1 &= SPI_Direction_Rx;
-  }
-}
-
-/**
-  * @brief  Configures internally by software the NSS pin for the selected SPI.
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called.  
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.  
-  * @param  SPI_NSSInternalSoft: specifies the SPI NSS internal state.
-  *          This parameter can be one of the following values:
-  *            @arg SPI_NSSInternalSoft_Set: Set NSS pin internally
-  *            @arg SPI_NSSInternalSoft_Reset: Reset NSS pin internally
-  * @retval None
-  */
-void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_NSS_INTERNAL(SPI_NSSInternalSoft));
-
-  if (SPI_NSSInternalSoft != SPI_NSSInternalSoft_Reset)
-  {
-    /* Set NSS pin internally by software */
-    SPIx->CR1 |= SPI_NSSInternalSoft_Set;
-  }
-  else
-  {
-    /* Reset NSS pin internally by software */
-    SPIx->CR1 &= SPI_NSSInternalSoft_Reset;
-  }
-}
-
-/**
-  * @brief  Enables or disables the SS output for the selected SPI.
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called and the NSS hardware management mode is selected. 
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.  
-  * @param  NewState: new state of the SPIx SS output. 
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI SS output */
-    SPIx->CR2 |= SPI_CR2_SSOE;
-  }
-  else
-  {
-    /* Disable the selected SPI SS output */
-    SPIx->CR2 &= (uint16_t)~((uint16_t)SPI_CR2_SSOE);
-  }
-}
-
-/**
-  * @brief  Enables or disables the NSS pulse management mode.
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called. 
-  * @note   When TI mode is selected, the control bits NSSP is not taken into 
-  *         consideration and are configured by hardware respectively to the 
-  *         TI mode requirements. 
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  NewState: new state of the NSS pulse management mode.
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_NSSPulseModeCmd(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the NSS pulse management mode */
-    SPIx->CR2 |= SPI_CR2_NSSP;
-  }
-  else
-  {
-    /* Disable the NSS pulse management mode */
-    SPIx->CR2 &= (uint16_t)~((uint16_t)SPI_CR2_NSSP);    
-  }
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup SPI_Group2 Data transfers functions
- *  @brief   Data transfers functions
- *
-@verbatim
- ===============================================================================
-                    ##### Data transfers functions #####
- ===============================================================================
-    [..] This section provides a set of functions allowing to manage the SPI or I2S
-         data transfers.
-
-    [..] In reception, data are received and then stored into an internal Rx buffer while 
-         In transmission, data are first stored into an internal Tx buffer before being 
-         transmitted.
-
-    [..] The read access of the SPI_DR register can be done using 
-         SPI_ReceiveData8() (when data size is equal or inferior than 8bits) and.
-         SPI_I2S_ReceiveData16() (when data size is superior than 8bits)function
-         and returns the Rx buffered value. Whereas a write access to the SPI_DR 
-         can be done using SPI_SendData8() (when data size is equal or inferior than 8bits)
-         and SPI_I2S_SendData16() (when data size is superior than 8bits) function 
-         and stores the written data into Tx buffer.
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Transmits a Data through the SPIx/I2Sx peripheral.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  Data: Data to be transmitted.
-  * @retval None
-  */
-void SPI_SendData8(SPI_TypeDef* SPIx, uint8_t Data)
-{
-  uint32_t spixbase = 0x00;
-
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-
-  spixbase = (uint32_t)SPIx; 
-  spixbase += 0x0C;
-  
-  *(__IO uint8_t *) spixbase = Data;
-}
-
-/**
-  * @brief  Transmits a Data through the SPIx/I2Sx peripheral.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select 
-  *         the SPI peripheral. 
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  Data: Data to be transmitted.
-  * @retval None
-  */
-void SPI_I2S_SendData16(SPI_TypeDef* SPIx, uint16_t Data)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  
-  SPIx->DR = (uint16_t)Data;
-}
-
-/**
-  * @brief  Returns the most recent received data by the SPIx/I2Sx peripheral. 
-  * @param  SPIx: where x can be 1 or 2 in SPI mode to select the SPI peripheral. 
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @retval The value of the received data.
-  */
-uint8_t SPI_ReceiveData8(SPI_TypeDef* SPIx)
-{
-  uint32_t spixbase = 0x00;
-  
-  spixbase = (uint32_t)SPIx; 
-  spixbase += 0x0C;
-  
-  return *(__IO uint8_t *) spixbase;
-}
-
-/**
-  * @brief  Returns the most recent received data by the SPIx peripheral. 
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         the SPI peripheral.  
-  * @retval The value of the received data.
-  */
-uint16_t SPI_I2S_ReceiveData16(SPI_TypeDef* SPIx)
-{
-  return SPIx->DR;
-}
-/**
-  * @}
-  */
-
-/** @defgroup SPI_Group3 Hardware CRC Calculation functions
- *  @brief   Hardware CRC Calculation functions
- *
-@verbatim   
- ===============================================================================
-                ##### Hardware CRC Calculation functions #####
- ===============================================================================
-    [..] This section provides a set of functions allowing to manage the SPI CRC hardware 
-         calculation.SPI communication using CRC is possible through the following procedure:
-
-         (#) Program the Data direction, Polarity, Phase, First Data, Baud Rate Prescaler,
-             Slave Management, Peripheral Mode and CRC Polynomial values using the SPI_Init()
-             function.
-         (#) Enable the CRC calculation using the SPI_CalculateCRC() function.
-         (#) Enable the SPI using the SPI_Cmd() function
-         (#) Before writing the last data to the TX buffer, set the CRCNext bit using the 
-             SPI_TransmitCRC() function to indicate that after transmission of the last 
-             data, the CRC should be transmitted.
-         (#) After transmitting the last data, the SPI transmits the CRC. The SPI_CR1_CRCNEXT
-             bit is reset. The CRC is also received and compared against the SPI_RXCRCR 
-             value. 
-             If the value does not match, the SPI_FLAG_CRCERR flag is set and an interrupt
-             can be generated when the SPI_I2S_IT_ERR interrupt is enabled.
-
-    -@-
-       (+@) It is advised to don't read the calculate CRC values during the communication.
-       (+@) When the SPI is in slave mode, be careful to enable CRC calculation only
-       when the clock is stable, that is, when the clock is in the steady state. 
-       If not, a wrong CRC calculation may be done. In fact, the CRC is sensitive 
-       to the SCK slave input clock as soon as CRCEN is set, and this, whatever 
-       the value of the SPE bit.
-       (+@) With high bitrate frequencies, be careful when transmitting the CRC.
-       As the number of used CPU cycles has to be as low as possible in the CRC 
-       transfer phase, it is forbidden to call software functions in the CRC 
-       transmission sequence to avoid errors in the last data and CRC reception. 
-       In fact, CRCNEXT bit has to be written before the end of the transmission/reception 
-       of the last data.
-       (+@) For high bit rate frequencies, it is advised to use the DMA mode to avoid the
-       degradation of the SPI speed performance due to CPU accesses impacting the 
-       SPI bandwidth.
-       (+@) When the STM32F0xx are configured as slaves and the NSS hardware mode is 
-       used, the NSS pin needs to be kept low between the data phase and the CRC 
-       phase.
-       (+@) When the SPI is configured in slave mode with the CRC feature enabled, CRC
-       calculation takes place even if a high level is applied on the NSS pin. 
-       This may happen for example in case of a multislave environment where the 
-       communication master addresses slaves alternately.
-       (+@) Between a slave deselection (high level on NSS) and a new slave selection
-       (low level on NSS), the CRC value should be cleared on both master and slave
-       sides in order to resynchronize the master and slave for their respective 
-       CRC calculation.
-
-    -@- To clear the CRC, follow the procedure below:
-       (#@) Disable SPI using the SPI_Cmd() function
-       (#@) Disable the CRC calculation using the SPI_CalculateCRC() function.
-       (#@) Enable the CRC calculation using the SPI_CalculateCRC() function.
-       (#@) Enable SPI using the SPI_Cmd() function.
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Configures the CRC calculation length for the selected SPI.
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called.  
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.  
-  * @param  SPI_CRCLength: specifies the SPI CRC calculation length.
-  *          This parameter can be one of the following values:
-  *            @arg SPI_CRCLength_8b: Set CRC Calculation to 8 bits
-  *            @arg SPI_CRCLength_16b: Set CRC Calculation to 16 bits
-  * @retval None
-  */
-void SPI_CRCLengthConfig(SPI_TypeDef* SPIx, uint16_t SPI_CRCLength)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_CRC_LENGTH(SPI_CRCLength));
-
-  /* Clear CRCL bit */
-  SPIx->CR1 &= (uint16_t)~((uint16_t)SPI_CR1_CRCL);
-
-  /* Set new CRCL bit value */
-  SPIx->CR1 |= SPI_CRCLength;
-}
-
-/**
-  * @brief  Enables or disables the CRC value calculation of the transferred bytes.
-  * @note   This function can be called only after the SPI_Init() function has 
-  *         been called.   
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  NewState: new state of the SPIx CRC value calculation.
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI CRC calculation */
-    SPIx->CR1 |= SPI_CR1_CRCEN;
-  }
-  else
-  {
-    /* Disable the selected SPI CRC calculation */
-    SPIx->CR1 &= (uint16_t)~((uint16_t)SPI_CR1_CRCEN);
-  }
-}
-
-/**
-  * @brief  Transmit the SPIx CRC value.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @retval None
-  */
-void SPI_TransmitCRC(SPI_TypeDef* SPIx)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-
-  /* Enable the selected SPI CRC transmission */
-  SPIx->CR1 |= SPI_CR1_CRCNEXT;
-}
-
-/**
-  * @brief  Returns the transmit or the receive CRC register value for the specified SPI.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @param  SPI_CRC: specifies the CRC register to be read.
-  *          This parameter can be one of the following values:
-  *            @arg SPI_CRC_Tx: Selects Tx CRC register
-  *            @arg SPI_CRC_Rx: Selects Rx CRC register
-  * @retval The selected CRC register value..
-  */
-uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC)
-{
-  uint16_t crcreg = 0;
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_CRC(SPI_CRC));
-
-  if (SPI_CRC != SPI_CRC_Rx)
-  {
-    /* Get the Tx CRC register */
-    crcreg = SPIx->TXCRCR;
-  }
-  else
-  {
-    /* Get the Rx CRC register */
-    crcreg = SPIx->RXCRCR;
-  }
-  /* Return the selected CRC register */
-  return crcreg;
-}
-
-/**
-  * @brief  Returns the CRC Polynomial register value for the specified SPI.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices. 
-  * @retval The CRC Polynomial register value.
-  */
-uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-
-  /* Return the CRC polynomial register */
-  return SPIx->CRCPR;
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup SPI_Group4 DMA transfers management functions
- *  @brief   DMA transfers management functions
-  *
-@verbatim   
- ===============================================================================
-                ##### DMA transfers management functions #####
- ===============================================================================
-    [..] This section provides two functions that can be used only in DMA mode.
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Enables or disables the SPIx/I2Sx DMA interface.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select 
-  *         the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         I2S mode is not supported for STM32F030 devices.  
-  * @param  SPI_I2S_DMAReq: specifies the SPI DMA transfer request to be enabled or disabled. 
-  *          This parameter can be any combination of the following values:
-  *            @arg SPI_I2S_DMAReq_Tx: Tx buffer DMA transfer request
-  *            @arg SPI_I2S_DMAReq_Rx: Rx buffer DMA transfer request
-  * @param  NewState: new state of the selected SPI DMA transfer request.
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-  assert_param(IS_SPI_I2S_DMA_REQ(SPI_I2S_DMAReq));
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI DMA requests */
-    SPIx->CR2 |= SPI_I2S_DMAReq;
-  }
-  else
-  {
-    /* Disable the selected SPI DMA requests */
-    SPIx->CR2 &= (uint16_t)~SPI_I2S_DMAReq;
-  }
-}
-
-/**
-  * @brief  Configures the number of data to transfer type(Even/Odd) for the DMA
-  *         last transfers and for the selected SPI.
-  * @note   This function have a meaning only if DMA mode is selected and if 
-  *         the packing mode is used (data length <= 8 and DMA transfer size halfword)  
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @param  SPI_LastDMATransfer: specifies the SPI last DMA transfers state.
-  *          This parameter can be one of the following values:
-  *            @arg SPI_LastDMATransfer_TxEvenRxEven: Number of data for transmission Even
-  *                                                   and number of data for reception Even.
-  *            @arg SPI_LastDMATransfer_TxOddRxEven: Number of data for transmission Odd
-  *                                                  and number of data for reception Even.
-  *            @arg SPI_LastDMATransfer_TxEvenRxOdd: Number of data for transmission Even
-  *                                                  and number of data for reception Odd.
-  *            @arg SPI_LastDMATransfer_TxOddRxOdd: Number of data for transmission Odd
-  *                                                 and number of data for reception Odd.
-  * @retval None
-  */
-void SPI_LastDMATransferCmd(SPI_TypeDef* SPIx, uint16_t SPI_LastDMATransfer)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_LAST_DMA_TRANSFER(SPI_LastDMATransfer));
-
-  /* Clear LDMA_TX and LDMA_RX bits */
-  SPIx->CR2 &= CR2_LDMA_MASK;
-
-  /* Set new LDMA_TX and LDMA_RX bits value */
-  SPIx->CR2 |= SPI_LastDMATransfer; 
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup SPI_Group5 Interrupts and flags management functions
- *  @brief   Interrupts and flags management functions
-  *
-@verbatim   
- ===============================================================================
-             ##### Interrupts and flags management functions #####
- ===============================================================================
-    [..] This section provides a set of functions allowing to configure the SPI/I2S Interrupts 
-         sources and check or clear the flags or pending bits status.
-         The user should identify which mode will be used in his application to manage 
-         the communication: Polling mode, Interrupt mode or DMA mode. 
-
-  *** Polling Mode ***
-  ====================
-    [..] In Polling Mode, the SPI/I2S communication can be managed by 9 flags:
-        (#) SPI_I2S_FLAG_TXE : to indicate the status of the transmit buffer register
-        (#) SPI_I2S_FLAG_RXNE : to indicate the status of the receive buffer register
-        (#) SPI_I2S_FLAG_BSY : to indicate the state of the communication layer of the SPI.
-        (#) SPI_FLAG_CRCERR : to indicate if a CRC Calculation error occur              
-        (#) SPI_FLAG_MODF : to indicate if a Mode Fault error occur
-        (#) SPI_I2S_FLAG_OVR : to indicate if an Overrun error occur
-        (#) SPI_I2S_FLAG_FRE: to indicate a Frame Format error occurs.
-        (#) I2S_FLAG_UDR: to indicate an Underrun error occurs.
-        (#) I2S_FLAG_CHSIDE: to indicate Channel Side.
-
-    [..]
-        (@)Do not use the BSY flag to handle each data transmission or reception. It is better 
-           to use the TXE and RXNE flags instead.
-
-    [..] In this Mode it is advised to use the following functions:
-        (+) FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
-        (+) void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG);
-
-  *** Interrupt Mode ***
-  ======================
-    [..] In Interrupt Mode, the SPI/I2S communication can be managed by 3 interrupt sources
-         and 5 pending bits: 
-    [..] Pending Bits:
-        (#) SPI_I2S_IT_TXE : to indicate the status of the transmit buffer register
-        (#) SPI_I2S_IT_RXNE : to indicate the status of the receive buffer register
-        (#) SPI_I2S_IT_OVR : to indicate if an Overrun error occur
-        (#) I2S_IT_UDR : to indicate an Underrun Error occurs.
-        (#) SPI_I2S_FLAG_FRE : to indicate a Frame Format error occurs.
-
-    [..] Interrupt Source:
-        (#) SPI_I2S_IT_TXE: specifies the interrupt source for the Tx buffer empty 
-            interrupt.  
-        (#) SPI_I2S_IT_RXNE : specifies the interrupt source for the Rx buffer not 
-            empty interrupt.
-        (#) SPI_I2S_IT_ERR : specifies the interrupt source for the errors interrupt.
-
-    [..] In this Mode it is advised to use the following functions:
-         (+) void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState);
-         (+) ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT);
-
-  *** FIFO Status ***
-  ===================
-    [..] It is possible to monitor the FIFO status when a transfer is ongoing using the
-         following function:
-         (+) uint32_t SPI_GetFIFOStatus(uint8_t SPI_FIFO_Direction); 
-
-  *** DMA Mode ***
-  ================
-    [..] In DMA Mode, the SPI communication can be managed by 2 DMA Channel 
-         requests:
-        (#) SPI_I2S_DMAReq_Tx: specifies the Tx buffer DMA transfer request.
-        (#) SPI_I2S_DMAReq_Rx: specifies the Rx buffer DMA transfer request.
-
-    [..] In this Mode it is advised to use the following function:
-        (+) void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState).
-
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Enables or disables the specified SPI/I2S interrupts.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select 
-  *         the SPI peripheral.  
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         I2S mode is not supported for STM32F030 devices.  
-  * @param  SPI_I2S_IT: specifies the SPI interrupt source to be enabled or disabled. 
-  *          This parameter can be one of the following values:
-  *            @arg SPI_I2S_IT_TXE: Tx buffer empty interrupt mask
-  *            @arg SPI_I2S_IT_RXNE: Rx buffer not empty interrupt mask
-  *            @arg SPI_I2S_IT_ERR: Error interrupt mask
-  * @param  NewState: new state of the specified SPI interrupt.
-  *          This parameter can be: ENABLE or DISABLE.
-  * @retval None
-  */
-void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState)
-{
-  uint16_t itpos = 0, itmask = 0 ;
-
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_FUNCTIONAL_STATE(NewState));
-  assert_param(IS_SPI_I2S_CONFIG_IT(SPI_I2S_IT));
-
-  /* Get the SPI IT index */
-  itpos = SPI_I2S_IT >> 4;
-
-  /* Set the IT mask */
-  itmask = (uint16_t)1 << (uint16_t)itpos;
-
-  if (NewState != DISABLE)
-  {
-    /* Enable the selected SPI interrupt */
-    SPIx->CR2 |= itmask;
-  }
-  else
-  {
-    /* Disable the selected SPI interrupt */
-    SPIx->CR2 &= (uint16_t)~itmask;
-  }
-}
-
-/**
-  * @brief  Returns the current SPIx Transmission FIFO filled level.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @retval The Transmission FIFO filling state.
-  *          - SPI_TransmissionFIFOStatus_Empty: when FIFO is empty
-  *          - SPI_TransmissionFIFOStatus_1QuarterFull: if more than 1 quarter-full.
-  *          - SPI_TransmissionFIFOStatus_HalfFull: if more than 1 half-full.
-  *          - SPI_TransmissionFIFOStatus_Full: when FIFO is full.
-  */
-uint16_t SPI_GetTransmissionFIFOStatus(SPI_TypeDef* SPIx)
-{
-  /* Get the SPIx Transmission FIFO level bits */
-  return (uint16_t)((SPIx->SR & SPI_SR_FTLVL));
-}
-
-/**
-  * @brief  Returns the current SPIx Reception FIFO filled level.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  * @retval The Reception FIFO filling state.
-  *          - SPI_ReceptionFIFOStatus_Empty: when FIFO is empty
-  *          - SPI_ReceptionFIFOStatus_1QuarterFull: if more than 1 quarter-full.
-  *          - SPI_ReceptionFIFOStatus_HalfFull: if more than 1 half-full.
-  *          - SPI_ReceptionFIFOStatus_Full: when FIFO is full.
-  */
-uint16_t SPI_GetReceptionFIFOStatus(SPI_TypeDef* SPIx)
-{
-  /* Get the SPIx Reception FIFO level bits */
-  return (uint16_t)((SPIx->SR & SPI_SR_FRLVL));
-}
-
-/**
-  * @brief  Checks whether the specified SPI flag is set or not.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select 
-  *         the SPI peripheral.    
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         I2S mode is not supported for STM32F030 devices.  
-  * @param  SPI_I2S_FLAG: specifies the SPI flag to check. 
-  *          This parameter can be one of the following values:
-  *            @arg SPI_I2S_FLAG_TXE: Transmit buffer empty flag.
-  *            @arg SPI_I2S_FLAG_RXNE: Receive buffer not empty flag.
-  *            @arg SPI_I2S_FLAG_BSY: Busy flag.
-  *            @arg SPI_I2S_FLAG_OVR: Overrun flag.
-  *            @arg SPI_FLAG_MODF: Mode Fault flag.
-  *            @arg SPI_FLAG_CRCERR: CRC Error flag.
-  *            @arg SPI_I2S_FLAG_FRE: TI frame format error flag.
-  *            @arg I2S_FLAG_UDR: Underrun Error flag.
-  *            @arg I2S_FLAG_CHSIDE: Channel Side flag.   
-  * @retval The new state of SPI_I2S_FLAG (SET or RESET).
-  */
-FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG)
-{
-  FlagStatus bitstatus = RESET;
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_I2S_GET_FLAG(SPI_I2S_FLAG));
-
-  /* Check the status of the specified SPI flag */
-  if ((SPIx->SR & SPI_I2S_FLAG) != (uint16_t)RESET)
-  {
-    /* SPI_I2S_FLAG is set */
-    bitstatus = SET;
-  }
-  else
-  {
-    /* SPI_I2S_FLAG is reset */
-    bitstatus = RESET;
-  }
-  /* Return the SPI_I2S_FLAG status */
-  return  bitstatus;
-}
-
-/**
-  * @brief  Clears the SPIx CRC Error (CRCERR) flag.
-  * @param  SPIx: where x can be 1 or 2 to select the SPI peripheral.
-  * @note   SPI2 is not available for STM32F031 devices.
-  *         I2S mode is not supported for STM32F030 devices.  
-  * @param  SPI_I2S_FLAG: specifies the SPI flag to clear. 
-  *         This function clears only CRCERR flag.
-  * @note   OVR (OverRun error) flag is cleared by software sequence: a read 
-  *         operation to SPI_DR register (SPI_I2S_ReceiveData()) followed by  
-  *         a read operation to SPI_SR register (SPI_I2S_GetFlagStatus()).
-  * @note   MODF (Mode Fault) flag is cleared by software sequence: a read/write 
-  *         operation to SPI_SR register (SPI_I2S_GetFlagStatus()) followed by
-  *         a write operation to SPI_CR1 register (SPI_Cmd() to enable the SPI).
-  * @retval None
-  */
-void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG)
-{
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_CLEAR_FLAG(SPI_I2S_FLAG));
-
-  /* Clear the selected SPI CRC Error (CRCERR) flag */
-  SPIx->SR = (uint16_t)~SPI_I2S_FLAG;
-}
-
-/**
-  * @brief  Checks whether the specified SPI/I2S interrupt has occurred or not.
-  * @param  SPIx: where x can be 1 or 2 in SPI mode or 1 in I2S mode to select 
-  *         the SPI peripheral.
-  * @param  SPI_I2S_IT: specifies the SPI interrupt source to check. 
-  *          This parameter can be one of the following values:
-  *            @arg SPI_I2S_IT_TXE: Transmit buffer empty interrupt.
-  *            @arg SPI_I2S_IT_RXNE: Receive buffer not empty interrupt.
-  *            @arg SPI_IT_MODF: Mode Fault interrupt.
-  *            @arg SPI_I2S_IT_OVR: Overrun interrupt.
-  *            @arg I2S_IT_UDR: Underrun interrupt.  
-  *            @arg SPI_I2S_IT_FRE: Format Error interrupt.  
-  * @retval The new state of SPI_I2S_IT (SET or RESET).
-  */
-ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT)
-{
-  ITStatus bitstatus = RESET;
-  uint16_t itpos = 0, itmask = 0, enablestatus = 0;
-
-  /* Check the parameters */
-  assert_param(IS_SPI_ALL_PERIPH(SPIx));
-  assert_param(IS_SPI_I2S_GET_IT(SPI_I2S_IT));
-
-  /* Get the SPI_I2S_IT index */
-  itpos = 0x01 << (SPI_I2S_IT & 0x0F);
-
-  /* Get the SPI_I2S_IT IT mask */
-  itmask = SPI_I2S_IT >> 4;
-
-  /* Set the IT mask */
-  itmask = 0x01 << itmask;
-
-  /* Get the SPI_I2S_IT enable bit status */
-  enablestatus = (SPIx->CR2 & itmask) ;
-
-  /* Check the status of the specified SPI interrupt */
-  if (((SPIx->SR & itpos) != (uint16_t)RESET) && enablestatus)
-  {
-    /* SPI_I2S_IT is set */
-    bitstatus = SET;
-  }
-  else
-  {
-    /* SPI_I2S_IT is reset */
-    bitstatus = RESET;
-  }
-  /* Return the SPI_I2S_IT status */
-  return bitstatus;
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */ 
-
-/**
-  * @}
-  */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/