From 40e04e3772726829d66c12e69f24b03920d79c67 Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Wed, 25 Jan 2017 22:24:18 +0100 Subject: o Moving tinyprintf and stm libraries under thirdparty. --- .../STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c | 908 --------------------- 1 file changed, 908 deletions(-) delete mode 100644 tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c') diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c deleted file mode 100644 index 4ec65b2..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c +++ /dev/null @@ -1,908 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f10x_spi.c - * @author MCD Application Team - * @version V3.5.0 - * @date 11-March-2011 - * @brief This file provides all the SPI firmware functions. - ****************************************************************************** - * @attention - * - * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS - * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE - * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY - * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING - * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE - * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. - * - *

© COPYRIGHT 2011 STMicroelectronics

- ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x_spi.h" -#include "stm32f10x_rcc.h" - -/** @addtogroup STM32F10x_StdPeriph_Driver - * @{ - */ - -/** @defgroup SPI - * @brief SPI driver modules - * @{ - */ - -/** @defgroup SPI_Private_TypesDefinitions - * @{ - */ - -/** - * @} - */ - - -/** @defgroup SPI_Private_Defines - * @{ - */ - -/* SPI SPE mask */ -#define CR1_SPE_Set ((uint16_t)0x0040) -#define CR1_SPE_Reset ((uint16_t)0xFFBF) - -/* I2S I2SE mask */ -#define I2SCFGR_I2SE_Set ((uint16_t)0x0400) -#define I2SCFGR_I2SE_Reset ((uint16_t)0xFBFF) - -/* SPI CRCNext mask */ -#define CR1_CRCNext_Set ((uint16_t)0x1000) - -/* SPI CRCEN mask */ -#define CR1_CRCEN_Set ((uint16_t)0x2000) -#define CR1_CRCEN_Reset ((uint16_t)0xDFFF) - -/* SPI SSOE mask */ -#define CR2_SSOE_Set ((uint16_t)0x0004) -#define CR2_SSOE_Reset ((uint16_t)0xFFFB) - -/* SPI registers Masks */ -#define CR1_CLEAR_Mask ((uint16_t)0x3040) -#define I2SCFGR_CLEAR_Mask ((uint16_t)0xF040) - -/* SPI or I2S mode selection masks */ -#define SPI_Mode_Select ((uint16_t)0xF7FF) -#define I2S_Mode_Select ((uint16_t)0x0800) - -/* I2S clock source selection masks */ -#define I2S2_CLOCK_SRC ((uint32_t)(0x00020000)) -#define I2S3_CLOCK_SRC ((uint32_t)(0x00040000)) -#define I2S_MUL_MASK ((uint32_t)(0x0000F000)) -#define I2S_DIV_MASK ((uint32_t)(0x000000F0)) - -/** - * @} - */ - -/** @defgroup SPI_Private_Macros - * @{ - */ - -/** - * @} - */ - -/** @defgroup SPI_Private_Variables - * @{ - */ - -/** - * @} - */ - -/** @defgroup SPI_Private_FunctionPrototypes - * @{ - */ - -/** - * @} - */ - -/** @defgroup SPI_Private_Functions - * @{ - */ - -/** - * @brief Deinitializes the SPIx peripheral registers to their default - * reset values (Affects also the I2Ss). - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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); - } - else - { - if (SPIx == SPI3) - { - /* Enable SPI3 reset state */ - RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, ENABLE); - /* Release SPI3 from reset state */ - RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, DISABLE); - } - } -} - -/** - * @brief Initializes the SPIx peripheral according to the specified - * parameters in the SPI_InitStruct. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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_DATASIZE(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, MSTR, CPOL and CPHA bits */ - tmpreg &= CR1_CLEAR_Mask; - /* Configure SPIx: direction, NSS management, first transmitted bit, BaudRate prescaler - master/salve mode, CPOL and CPHA */ - /* Set BIDImode, BIDIOE and RxONLY bits according to SPI_Direction value */ - /* Set SSM, SSI and MSTR bits according to SPI_Mode and 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_Mode | - SPI_InitStruct->SPI_DataSize | SPI_InitStruct->SPI_CPOL | - SPI_InitStruct->SPI_CPHA | SPI_InitStruct->SPI_NSS | - SPI_InitStruct->SPI_BaudRatePrescaler | SPI_InitStruct->SPI_FirstBit); - /* Write to SPIx CR1 */ - SPIx->CR1 = tmpreg; - - /* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */ - SPIx->I2SCFGR &= SPI_Mode_Select; - -/*---------------------------- SPIx CRCPOLY Configuration --------------------*/ - /* Write to SPIx CRCPOLY */ - SPIx->CRCPR = SPI_InitStruct->SPI_CRCPolynomial; -} - -/** - * @brief Initializes the SPIx peripheral according to the specified - * parameters in the I2S_InitStruct. - * @param SPIx: where x can be 2 or 3 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 - * The 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_23_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; - } - - /* Get the I2S clock source mask depending on the peripheral number */ - if(((uint32_t)SPIx) == SPI2_BASE) - { - /* The mask is relative to I2S2 */ - tmp = I2S2_CLOCK_SRC; - } - else - { - /* The mask is relative to I2S3 */ - tmp = I2S3_CLOCK_SRC; - } - - /* Check the I2S clock source configuration depending on the Device: - Only Connectivity line devices have the PLL3 VCO clock */ -#ifdef STM32F10X_CL - if((RCC->CFGR2 & tmp) != 0) - { - /* Get the configuration bits of RCC PLL3 multiplier */ - tmp = (uint32_t)((RCC->CFGR2 & I2S_MUL_MASK) >> 12); - - /* Get the value of the PLL3 multiplier */ - if((tmp > 5) && (tmp < 15)) - { - /* Multiplier is between 8 and 14 (value 15 is forbidden) */ - tmp += 2; - } - else - { - if (tmp == 15) - { - /* Multiplier is 20 */ - tmp = 20; - } - } - /* Get the PREDIV2 value */ - sourceclock = (uint32_t)(((RCC->CFGR2 & I2S_DIV_MASK) >> 4) + 1); - - /* Calculate the Source Clock frequency based on PLL3 and PREDIV2 values */ - sourceclock = (uint32_t) ((HSE_Value / sourceclock) * tmp * 2); - } - else - { - /* 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; - } -#else /* STM32F10X_HD */ - /* 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; -#endif /* STM32F10X_CL */ - - /* 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)(I2S_Mode_Select | (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 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 Fills each I2S_InitStruct member with its default value. - * @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 Enables or disables the specified SPI peripheral. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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 |= CR1_SPE_Set; - } - else - { - /* Disable the selected SPI peripheral */ - SPIx->CR1 &= CR1_SPE_Reset; - } -} - -/** - * @brief Enables or disables the specified SPI peripheral (in I2S mode). - * @param SPIx: where x can be 2 or 3 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_23_PERIPH(SPIx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - /* Enable the selected SPI peripheral (in I2S mode) */ - SPIx->I2SCFGR |= I2SCFGR_I2SE_Set; - } - else - { - /* Disable the selected SPI peripheral (in I2S mode) */ - SPIx->I2SCFGR &= I2SCFGR_I2SE_Reset; - } -} - -/** - * @brief Enables or disables the specified SPI/I2S interrupts. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @param SPI_I2S_IT: specifies the SPI/I2S 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/I2S 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/I2S 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/I2S interrupt */ - SPIx->CR2 |= itmask; - } - else - { - /* Disable the selected SPI/I2S interrupt */ - SPIx->CR2 &= (uint16_t)~itmask; - } -} - -/** - * @brief Enables or disables the SPIx/I2Sx DMA interface. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @param SPI_I2S_DMAReq: specifies the SPI/I2S 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/I2S 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_DMAREQ(SPI_I2S_DMAReq)); - if (NewState != DISABLE) - { - /* Enable the selected SPI/I2S DMA requests */ - SPIx->CR2 |= SPI_I2S_DMAReq; - } - else - { - /* Disable the selected SPI/I2S DMA requests */ - SPIx->CR2 &= (uint16_t)~SPI_I2S_DMAReq; - } -} - -/** - * @brief Transmits a Data through the SPIx/I2Sx peripheral. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @param Data : Data to be transmitted. - * @retval None - */ -void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data) -{ - /* Check the parameters */ - assert_param(IS_SPI_ALL_PERIPH(SPIx)); - - /* Write in the DR register the data to be sent */ - SPIx->DR = Data; -} - -/** - * @brief Returns the most recent received data by the SPIx/I2Sx peripheral. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @retval The value of the received data. - */ -uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx) -{ - /* Check the parameters */ - assert_param(IS_SPI_ALL_PERIPH(SPIx)); - - /* Return the data in the DR register */ - return SPIx->DR; -} - -/** - * @brief Configures internally by software the NSS pin for the selected SPI. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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 |= CR2_SSOE_Set; - } - else - { - /* Disable the selected SPI SS output */ - SPIx->CR2 &= CR2_SSOE_Reset; - } -} - -/** - * @brief Configures the data size for the selected SPI. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @param SPI_DataSize: specifies the SPI data size. - * This parameter can be one of the following values: - * @arg SPI_DataSize_16b: Set data frame format to 16bit - * @arg SPI_DataSize_8b: Set data frame format to 8bit - * @retval None - */ -void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize) -{ - /* Check the parameters */ - assert_param(IS_SPI_ALL_PERIPH(SPIx)); - assert_param(IS_SPI_DATASIZE(SPI_DataSize)); - /* Clear DFF bit */ - SPIx->CR1 &= (uint16_t)~SPI_DataSize_16b; - /* Set new DFF bit value */ - SPIx->CR1 |= SPI_DataSize; -} - -/** - * @brief Transmit the SPIx CRC value. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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 |= CR1_CRCNext_Set; -} - -/** - * @brief Enables or disables the CRC value calculation of the transferred bytes. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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 |= CR1_CRCEN_Set; - } - else - { - /* Disable the selected SPI CRC calculation */ - SPIx->CR1 &= CR1_CRCEN_Reset; - } -} - -/** - * @brief Returns the transmit or the receive CRC register value for the specified SPI. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @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, 2 or 3 to select the SPI peripheral. - * @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; -} - -/** - * @brief Selects the data transfer direction in bi-directional mode for the specified SPI. - * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. - * @param SPI_Direction: specifies the data transfer direction in bi-directional 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 Checks whether the specified SPI/I2S flag is set or not. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @param SPI_I2S_FLAG: specifies the SPI/I2S 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 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/I2S 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, 2 or 3 in SPI mode - * @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()). - * - UDR (UnderRun error) flag is cleared by a read operation to - * SPI_SR register (SPI_I2S_GetFlagStatus()). - * - 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_I2S_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, 2 or 3 in SPI mode - * - 2 or 3 in I2S mode - * @param SPI_I2S_IT: specifies the SPI/I2S 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_I2S_IT_OVR: Overrun interrupt. - * @arg SPI_IT_MODF: Mode Fault interrupt. - * @arg SPI_IT_CRCERR: CRC Error interrupt. - * @arg I2S_IT_UDR: Underrun 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 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/I2S 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; -} - -/** - * @brief Clears the SPIx CRC Error (CRCERR) interrupt pending bit. - * @param SPIx: where x can be - * - 1, 2 or 3 in SPI mode - * @param SPI_I2S_IT: specifies the SPI interrupt pending bit to clear. - * This function clears only CRCERR interrupt pending bit. - * @note - * - OVR (OverRun Error) interrupt pending bit 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_GetITStatus()). - * - UDR (UnderRun Error) interrupt pending bit is cleared by a read - * operation to SPI_SR register (SPI_I2S_GetITStatus()). - * - MODF (Mode Fault) interrupt pending bit is cleared by software sequence: - * a read/write operation to SPI_SR register (SPI_I2S_GetITStatus()) - * followed by a write operation to SPI_CR1 register (SPI_Cmd() to enable - * the SPI). - * @retval None - */ -void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT) -{ - uint16_t itpos = 0; - /* Check the parameters */ - assert_param(IS_SPI_ALL_PERIPH(SPIx)); - assert_param(IS_SPI_I2S_CLEAR_IT(SPI_I2S_IT)); - - /* Get the SPI IT index */ - itpos = 0x01 << (SPI_I2S_IT & 0x0F); - - /* Clear the selected SPI CRC Error (CRCERR) interrupt pending bit */ - SPIx->SR = (uint16_t)~itpos; -} -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3