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. --- .../src/stm32f10x_usart.c | 1058 -------------------- 1 file changed, 1058 deletions(-) delete mode 100644 tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_usart.c (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_usart.c') diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_usart.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_usart.c deleted file mode 100644 index e794eae..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_usart.c +++ /dev/null @@ -1,1058 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f10x_usart.c - * @author MCD Application Team - * @version V3.5.0 - * @date 11-March-2011 - * @brief This file provides all the USART 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_usart.h" -#include "stm32f10x_rcc.h" - -/** @addtogroup STM32F10x_StdPeriph_Driver - * @{ - */ - -/** @defgroup USART - * @brief USART driver modules - * @{ - */ - -/** @defgroup USART_Private_TypesDefinitions - * @{ - */ - -/** - * @} - */ - -/** @defgroup USART_Private_Defines - * @{ - */ - -#define CR1_UE_Set ((uint16_t)0x2000) /*!< USART Enable Mask */ -#define CR1_UE_Reset ((uint16_t)0xDFFF) /*!< USART Disable Mask */ - -#define CR1_WAKE_Mask ((uint16_t)0xF7FF) /*!< USART WakeUp Method Mask */ - -#define CR1_RWU_Set ((uint16_t)0x0002) /*!< USART mute mode Enable Mask */ -#define CR1_RWU_Reset ((uint16_t)0xFFFD) /*!< USART mute mode Enable Mask */ -#define CR1_SBK_Set ((uint16_t)0x0001) /*!< USART Break Character send Mask */ -#define CR1_CLEAR_Mask ((uint16_t)0xE9F3) /*!< USART CR1 Mask */ -#define CR2_Address_Mask ((uint16_t)0xFFF0) /*!< USART address Mask */ - -#define CR2_LINEN_Set ((uint16_t)0x4000) /*!< USART LIN Enable Mask */ -#define CR2_LINEN_Reset ((uint16_t)0xBFFF) /*!< USART LIN Disable Mask */ - -#define CR2_LBDL_Mask ((uint16_t)0xFFDF) /*!< USART LIN Break detection Mask */ -#define CR2_STOP_CLEAR_Mask ((uint16_t)0xCFFF) /*!< USART CR2 STOP Bits Mask */ -#define CR2_CLOCK_CLEAR_Mask ((uint16_t)0xF0FF) /*!< USART CR2 Clock Mask */ - -#define CR3_SCEN_Set ((uint16_t)0x0020) /*!< USART SC Enable Mask */ -#define CR3_SCEN_Reset ((uint16_t)0xFFDF) /*!< USART SC Disable Mask */ - -#define CR3_NACK_Set ((uint16_t)0x0010) /*!< USART SC NACK Enable Mask */ -#define CR3_NACK_Reset ((uint16_t)0xFFEF) /*!< USART SC NACK Disable Mask */ - -#define CR3_HDSEL_Set ((uint16_t)0x0008) /*!< USART Half-Duplex Enable Mask */ -#define CR3_HDSEL_Reset ((uint16_t)0xFFF7) /*!< USART Half-Duplex Disable Mask */ - -#define CR3_IRLP_Mask ((uint16_t)0xFFFB) /*!< USART IrDA LowPower mode Mask */ -#define CR3_CLEAR_Mask ((uint16_t)0xFCFF) /*!< USART CR3 Mask */ - -#define CR3_IREN_Set ((uint16_t)0x0002) /*!< USART IrDA Enable Mask */ -#define CR3_IREN_Reset ((uint16_t)0xFFFD) /*!< USART IrDA Disable Mask */ -#define GTPR_LSB_Mask ((uint16_t)0x00FF) /*!< Guard Time Register LSB Mask */ -#define GTPR_MSB_Mask ((uint16_t)0xFF00) /*!< Guard Time Register MSB Mask */ -#define IT_Mask ((uint16_t)0x001F) /*!< USART Interrupt Mask */ - -/* USART OverSampling-8 Mask */ -#define CR1_OVER8_Set ((u16)0x8000) /* USART OVER8 mode Enable Mask */ -#define CR1_OVER8_Reset ((u16)0x7FFF) /* USART OVER8 mode Disable Mask */ - -/* USART One Bit Sampling Mask */ -#define CR3_ONEBITE_Set ((u16)0x0800) /* USART ONEBITE mode Enable Mask */ -#define CR3_ONEBITE_Reset ((u16)0xF7FF) /* USART ONEBITE mode Disable Mask */ - -/** - * @} - */ - -/** @defgroup USART_Private_Macros - * @{ - */ - -/** - * @} - */ - -/** @defgroup USART_Private_Variables - * @{ - */ - -/** - * @} - */ - -/** @defgroup USART_Private_FunctionPrototypes - * @{ - */ - -/** - * @} - */ - -/** @defgroup USART_Private_Functions - * @{ - */ - -/** - * @brief Deinitializes the USARTx peripheral registers to their default reset values. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @retval None - */ -void USART_DeInit(USART_TypeDef* USARTx) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - - if (USARTx == USART1) - { - RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, ENABLE); - RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, DISABLE); - } - else if (USARTx == USART2) - { - RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, ENABLE); - RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, DISABLE); - } - else if (USARTx == USART3) - { - RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, ENABLE); - RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, DISABLE); - } - else if (USARTx == UART4) - { - RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART4, ENABLE); - RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART4, DISABLE); - } - else - { - if (USARTx == UART5) - { - RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART5, ENABLE); - RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART5, DISABLE); - } - } -} - -/** - * @brief Initializes the USARTx peripheral according to the specified - * parameters in the USART_InitStruct . - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_InitStruct: pointer to a USART_InitTypeDef structure - * that contains the configuration information for the specified USART - * peripheral. - * @retval None - */ -void USART_Init(USART_TypeDef* USARTx, USART_InitTypeDef* USART_InitStruct) -{ - uint32_t tmpreg = 0x00, apbclock = 0x00; - uint32_t integerdivider = 0x00; - uint32_t fractionaldivider = 0x00; - uint32_t usartxbase = 0; - RCC_ClocksTypeDef RCC_ClocksStatus; - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_BAUDRATE(USART_InitStruct->USART_BaudRate)); - assert_param(IS_USART_WORD_LENGTH(USART_InitStruct->USART_WordLength)); - assert_param(IS_USART_STOPBITS(USART_InitStruct->USART_StopBits)); - assert_param(IS_USART_PARITY(USART_InitStruct->USART_Parity)); - assert_param(IS_USART_MODE(USART_InitStruct->USART_Mode)); - assert_param(IS_USART_HARDWARE_FLOW_CONTROL(USART_InitStruct->USART_HardwareFlowControl)); - /* The hardware flow control is available only for USART1, USART2 and USART3 */ - if (USART_InitStruct->USART_HardwareFlowControl != USART_HardwareFlowControl_None) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - usartxbase = (uint32_t)USARTx; - -/*---------------------------- USART CR2 Configuration -----------------------*/ - tmpreg = USARTx->CR2; - /* Clear STOP[13:12] bits */ - tmpreg &= CR2_STOP_CLEAR_Mask; - /* Configure the USART Stop Bits, Clock, CPOL, CPHA and LastBit ------------*/ - /* Set STOP[13:12] bits according to USART_StopBits value */ - tmpreg |= (uint32_t)USART_InitStruct->USART_StopBits; - - /* Write to USART CR2 */ - USARTx->CR2 = (uint16_t)tmpreg; - -/*---------------------------- USART CR1 Configuration -----------------------*/ - tmpreg = USARTx->CR1; - /* Clear M, PCE, PS, TE and RE bits */ - tmpreg &= CR1_CLEAR_Mask; - /* Configure the USART Word Length, Parity and mode ----------------------- */ - /* Set the M bits according to USART_WordLength value */ - /* Set PCE and PS bits according to USART_Parity value */ - /* Set TE and RE bits according to USART_Mode value */ - tmpreg |= (uint32_t)USART_InitStruct->USART_WordLength | USART_InitStruct->USART_Parity | - USART_InitStruct->USART_Mode; - /* Write to USART CR1 */ - USARTx->CR1 = (uint16_t)tmpreg; - -/*---------------------------- USART CR3 Configuration -----------------------*/ - tmpreg = USARTx->CR3; - /* Clear CTSE and RTSE bits */ - tmpreg &= CR3_CLEAR_Mask; - /* Configure the USART HFC -------------------------------------------------*/ - /* Set CTSE and RTSE bits according to USART_HardwareFlowControl value */ - tmpreg |= USART_InitStruct->USART_HardwareFlowControl; - /* Write to USART CR3 */ - USARTx->CR3 = (uint16_t)tmpreg; - -/*---------------------------- USART BRR Configuration -----------------------*/ - /* Configure the USART Baud Rate -------------------------------------------*/ - RCC_GetClocksFreq(&RCC_ClocksStatus); - if (usartxbase == USART1_BASE) - { - apbclock = RCC_ClocksStatus.PCLK2_Frequency; - } - else - { - apbclock = RCC_ClocksStatus.PCLK1_Frequency; - } - - /* Determine the integer part */ - if ((USARTx->CR1 & CR1_OVER8_Set) != 0) - { - /* Integer part computing in case Oversampling mode is 8 Samples */ - integerdivider = ((25 * apbclock) / (2 * (USART_InitStruct->USART_BaudRate))); - } - else /* if ((USARTx->CR1 & CR1_OVER8_Set) == 0) */ - { - /* Integer part computing in case Oversampling mode is 16 Samples */ - integerdivider = ((25 * apbclock) / (4 * (USART_InitStruct->USART_BaudRate))); - } - tmpreg = (integerdivider / 100) << 4; - - /* Determine the fractional part */ - fractionaldivider = integerdivider - (100 * (tmpreg >> 4)); - - /* Implement the fractional part in the register */ - if ((USARTx->CR1 & CR1_OVER8_Set) != 0) - { - tmpreg |= ((((fractionaldivider * 8) + 50) / 100)) & ((uint8_t)0x07); - } - else /* if ((USARTx->CR1 & CR1_OVER8_Set) == 0) */ - { - tmpreg |= ((((fractionaldivider * 16) + 50) / 100)) & ((uint8_t)0x0F); - } - - /* Write to USART BRR */ - USARTx->BRR = (uint16_t)tmpreg; -} - -/** - * @brief Fills each USART_InitStruct member with its default value. - * @param USART_InitStruct: pointer to a USART_InitTypeDef structure - * which will be initialized. - * @retval None - */ -void USART_StructInit(USART_InitTypeDef* USART_InitStruct) -{ - /* USART_InitStruct members default value */ - USART_InitStruct->USART_BaudRate = 9600; - USART_InitStruct->USART_WordLength = USART_WordLength_8b; - USART_InitStruct->USART_StopBits = USART_StopBits_1; - USART_InitStruct->USART_Parity = USART_Parity_No ; - USART_InitStruct->USART_Mode = USART_Mode_Rx | USART_Mode_Tx; - USART_InitStruct->USART_HardwareFlowControl = USART_HardwareFlowControl_None; -} - -/** - * @brief Initializes the USARTx peripheral Clock according to the - * specified parameters in the USART_ClockInitStruct . - * @param USARTx: where x can be 1, 2, 3 to select the USART peripheral. - * @param USART_ClockInitStruct: pointer to a USART_ClockInitTypeDef - * structure that contains the configuration information for the specified - * USART peripheral. - * @note The Smart Card and Synchronous modes are not available for UART4 and UART5. - * @retval None - */ -void USART_ClockInit(USART_TypeDef* USARTx, USART_ClockInitTypeDef* USART_ClockInitStruct) -{ - uint32_t tmpreg = 0x00; - /* Check the parameters */ - assert_param(IS_USART_123_PERIPH(USARTx)); - assert_param(IS_USART_CLOCK(USART_ClockInitStruct->USART_Clock)); - assert_param(IS_USART_CPOL(USART_ClockInitStruct->USART_CPOL)); - assert_param(IS_USART_CPHA(USART_ClockInitStruct->USART_CPHA)); - assert_param(IS_USART_LASTBIT(USART_ClockInitStruct->USART_LastBit)); - -/*---------------------------- USART CR2 Configuration -----------------------*/ - tmpreg = USARTx->CR2; - /* Clear CLKEN, CPOL, CPHA and LBCL bits */ - tmpreg &= CR2_CLOCK_CLEAR_Mask; - /* Configure the USART Clock, CPOL, CPHA and LastBit ------------*/ - /* Set CLKEN bit according to USART_Clock value */ - /* Set CPOL bit according to USART_CPOL value */ - /* Set CPHA bit according to USART_CPHA value */ - /* Set LBCL bit according to USART_LastBit value */ - tmpreg |= (uint32_t)USART_ClockInitStruct->USART_Clock | USART_ClockInitStruct->USART_CPOL | - USART_ClockInitStruct->USART_CPHA | USART_ClockInitStruct->USART_LastBit; - /* Write to USART CR2 */ - USARTx->CR2 = (uint16_t)tmpreg; -} - -/** - * @brief Fills each USART_ClockInitStruct member with its default value. - * @param USART_ClockInitStruct: pointer to a USART_ClockInitTypeDef - * structure which will be initialized. - * @retval None - */ -void USART_ClockStructInit(USART_ClockInitTypeDef* USART_ClockInitStruct) -{ - /* USART_ClockInitStruct members default value */ - USART_ClockInitStruct->USART_Clock = USART_Clock_Disable; - USART_ClockInitStruct->USART_CPOL = USART_CPOL_Low; - USART_ClockInitStruct->USART_CPHA = USART_CPHA_1Edge; - USART_ClockInitStruct->USART_LastBit = USART_LastBit_Disable; -} - -/** - * @brief Enables or disables the specified USART peripheral. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USARTx peripheral. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_Cmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the selected USART by setting the UE bit in the CR1 register */ - USARTx->CR1 |= CR1_UE_Set; - } - else - { - /* Disable the selected USART by clearing the UE bit in the CR1 register */ - USARTx->CR1 &= CR1_UE_Reset; - } -} - -/** - * @brief Enables or disables the specified USART interrupts. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_IT: specifies the USART interrupt sources to be enabled or disabled. - * This parameter can be one of the following values: - * @arg USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) - * @arg USART_IT_LBD: LIN Break detection interrupt - * @arg USART_IT_TXE: Transmit Data Register empty interrupt - * @arg USART_IT_TC: Transmission complete interrupt - * @arg USART_IT_RXNE: Receive Data register not empty interrupt - * @arg USART_IT_IDLE: Idle line detection interrupt - * @arg USART_IT_PE: Parity Error interrupt - * @arg USART_IT_ERR: Error interrupt(Frame error, noise error, overrun error) - * @param NewState: new state of the specified USARTx interrupts. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_ITConfig(USART_TypeDef* USARTx, uint16_t USART_IT, FunctionalState NewState) -{ - uint32_t usartreg = 0x00, itpos = 0x00, itmask = 0x00; - uint32_t usartxbase = 0x00; - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_CONFIG_IT(USART_IT)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - /* The CTS interrupt is not available for UART4 and UART5 */ - if (USART_IT == USART_IT_CTS) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - usartxbase = (uint32_t)USARTx; - - /* Get the USART register index */ - usartreg = (((uint8_t)USART_IT) >> 0x05); - - /* Get the interrupt position */ - itpos = USART_IT & IT_Mask; - itmask = (((uint32_t)0x01) << itpos); - - if (usartreg == 0x01) /* The IT is in CR1 register */ - { - usartxbase += 0x0C; - } - else if (usartreg == 0x02) /* The IT is in CR2 register */ - { - usartxbase += 0x10; - } - else /* The IT is in CR3 register */ - { - usartxbase += 0x14; - } - if (NewState != DISABLE) - { - *(__IO uint32_t*)usartxbase |= itmask; - } - else - { - *(__IO uint32_t*)usartxbase &= ~itmask; - } -} - -/** - * @brief Enables or disables the USART’s DMA interface. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_DMAReq: specifies the DMA request. - * This parameter can be any combination of the following values: - * @arg USART_DMAReq_Tx: USART DMA transmit request - * @arg USART_DMAReq_Rx: USART DMA receive request - * @param NewState: new state of the DMA Request sources. - * This parameter can be: ENABLE or DISABLE. - * @note The DMA mode is not available for UART5 except in the STM32 - * High density value line devices(STM32F10X_HD_VL). - * @retval None - */ -void USART_DMACmd(USART_TypeDef* USARTx, uint16_t USART_DMAReq, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_DMAREQ(USART_DMAReq)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - /* Enable the DMA transfer for selected requests by setting the DMAT and/or - DMAR bits in the USART CR3 register */ - USARTx->CR3 |= USART_DMAReq; - } - else - { - /* Disable the DMA transfer for selected requests by clearing the DMAT and/or - DMAR bits in the USART CR3 register */ - USARTx->CR3 &= (uint16_t)~USART_DMAReq; - } -} - -/** - * @brief Sets the address of the USART node. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_Address: Indicates the address of the USART node. - * @retval None - */ -void USART_SetAddress(USART_TypeDef* USARTx, uint8_t USART_Address) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_ADDRESS(USART_Address)); - - /* Clear the USART address */ - USARTx->CR2 &= CR2_Address_Mask; - /* Set the USART address node */ - USARTx->CR2 |= USART_Address; -} - -/** - * @brief Selects the USART WakeUp method. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_WakeUp: specifies the USART wakeup method. - * This parameter can be one of the following values: - * @arg USART_WakeUp_IdleLine: WakeUp by an idle line detection - * @arg USART_WakeUp_AddressMark: WakeUp by an address mark - * @retval None - */ -void USART_WakeUpConfig(USART_TypeDef* USARTx, uint16_t USART_WakeUp) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_WAKEUP(USART_WakeUp)); - - USARTx->CR1 &= CR1_WAKE_Mask; - USARTx->CR1 |= USART_WakeUp; -} - -/** - * @brief Determines if the USART is in mute mode or not. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USART mute mode. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_ReceiverWakeUpCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the USART mute mode by setting the RWU bit in the CR1 register */ - USARTx->CR1 |= CR1_RWU_Set; - } - else - { - /* Disable the USART mute mode by clearing the RWU bit in the CR1 register */ - USARTx->CR1 &= CR1_RWU_Reset; - } -} - -/** - * @brief Sets the USART LIN Break detection length. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_LINBreakDetectLength: specifies the LIN break detection length. - * This parameter can be one of the following values: - * @arg USART_LINBreakDetectLength_10b: 10-bit break detection - * @arg USART_LINBreakDetectLength_11b: 11-bit break detection - * @retval None - */ -void USART_LINBreakDetectLengthConfig(USART_TypeDef* USARTx, uint16_t USART_LINBreakDetectLength) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_LIN_BREAK_DETECT_LENGTH(USART_LINBreakDetectLength)); - - USARTx->CR2 &= CR2_LBDL_Mask; - USARTx->CR2 |= USART_LINBreakDetectLength; -} - -/** - * @brief Enables or disables the USART’s LIN mode. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USART LIN mode. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_LINCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the LIN mode by setting the LINEN bit in the CR2 register */ - USARTx->CR2 |= CR2_LINEN_Set; - } - else - { - /* Disable the LIN mode by clearing the LINEN bit in the CR2 register */ - USARTx->CR2 &= CR2_LINEN_Reset; - } -} - -/** - * @brief Transmits single data through the USARTx peripheral. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param Data: the data to transmit. - * @retval None - */ -void USART_SendData(USART_TypeDef* USARTx, uint16_t Data) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_DATA(Data)); - - /* Transmit Data */ - USARTx->DR = (Data & (uint16_t)0x01FF); -} - -/** - * @brief Returns the most recent received data by the USARTx peripheral. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @retval The received data. - */ -uint16_t USART_ReceiveData(USART_TypeDef* USARTx) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - - /* Receive Data */ - return (uint16_t)(USARTx->DR & (uint16_t)0x01FF); -} - -/** - * @brief Transmits break characters. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @retval None - */ -void USART_SendBreak(USART_TypeDef* USARTx) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - - /* Send break characters */ - USARTx->CR1 |= CR1_SBK_Set; -} - -/** - * @brief Sets the specified USART guard time. - * @param USARTx: where x can be 1, 2 or 3 to select the USART peripheral. - * @param USART_GuardTime: specifies the guard time. - * @note The guard time bits are not available for UART4 and UART5. - * @retval None - */ -void USART_SetGuardTime(USART_TypeDef* USARTx, uint8_t USART_GuardTime) -{ - /* Check the parameters */ - assert_param(IS_USART_123_PERIPH(USARTx)); - - /* Clear the USART Guard time */ - USARTx->GTPR &= GTPR_LSB_Mask; - /* Set the USART guard time */ - USARTx->GTPR |= (uint16_t)((uint16_t)USART_GuardTime << 0x08); -} - -/** - * @brief Sets the system clock prescaler. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_Prescaler: specifies the prescaler clock. - * @note The function is used for IrDA mode with UART4 and UART5. - * @retval None - */ -void USART_SetPrescaler(USART_TypeDef* USARTx, uint8_t USART_Prescaler) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - - /* Clear the USART prescaler */ - USARTx->GTPR &= GTPR_MSB_Mask; - /* Set the USART prescaler */ - USARTx->GTPR |= USART_Prescaler; -} - -/** - * @brief Enables or disables the USART’s Smart Card mode. - * @param USARTx: where x can be 1, 2 or 3 to select the USART peripheral. - * @param NewState: new state of the Smart Card mode. - * This parameter can be: ENABLE or DISABLE. - * @note The Smart Card mode is not available for UART4 and UART5. - * @retval None - */ -void USART_SmartCardCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_123_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - /* Enable the SC mode by setting the SCEN bit in the CR3 register */ - USARTx->CR3 |= CR3_SCEN_Set; - } - else - { - /* Disable the SC mode by clearing the SCEN bit in the CR3 register */ - USARTx->CR3 &= CR3_SCEN_Reset; - } -} - -/** - * @brief Enables or disables NACK transmission. - * @param USARTx: where x can be 1, 2 or 3 to select the USART peripheral. - * @param NewState: new state of the NACK transmission. - * This parameter can be: ENABLE or DISABLE. - * @note The Smart Card mode is not available for UART4 and UART5. - * @retval None - */ -void USART_SmartCardNACKCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_123_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - /* Enable the NACK transmission by setting the NACK bit in the CR3 register */ - USARTx->CR3 |= CR3_NACK_Set; - } - else - { - /* Disable the NACK transmission by clearing the NACK bit in the CR3 register */ - USARTx->CR3 &= CR3_NACK_Reset; - } -} - -/** - * @brief Enables or disables the USART’s Half Duplex communication. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USART Communication. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_HalfDuplexCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */ - USARTx->CR3 |= CR3_HDSEL_Set; - } - else - { - /* Disable the Half-Duplex mode by clearing the HDSEL bit in the CR3 register */ - USARTx->CR3 &= CR3_HDSEL_Reset; - } -} - - -/** - * @brief Enables or disables the USART's 8x oversampling mode. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USART one bit sampling method. - * This parameter can be: ENABLE or DISABLE. - * @note - * This function has to be called before calling USART_Init() - * function in order to have correct baudrate Divider value. - * @retval None - */ -void USART_OverSampling8Cmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the 8x Oversampling mode by setting the OVER8 bit in the CR1 register */ - USARTx->CR1 |= CR1_OVER8_Set; - } - else - { - /* Disable the 8x Oversampling mode by clearing the OVER8 bit in the CR1 register */ - USARTx->CR1 &= CR1_OVER8_Reset; - } -} - -/** - * @brief Enables or disables the USART's one bit sampling method. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the USART one bit sampling method. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_OneBitMethodCmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the one bit method by setting the ONEBITE bit in the CR3 register */ - USARTx->CR3 |= CR3_ONEBITE_Set; - } - else - { - /* Disable tthe one bit method by clearing the ONEBITE bit in the CR3 register */ - USARTx->CR3 &= CR3_ONEBITE_Reset; - } -} - -/** - * @brief Configures the USART's IrDA interface. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_IrDAMode: specifies the IrDA mode. - * This parameter can be one of the following values: - * @arg USART_IrDAMode_LowPower - * @arg USART_IrDAMode_Normal - * @retval None - */ -void USART_IrDAConfig(USART_TypeDef* USARTx, uint16_t USART_IrDAMode) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_IRDA_MODE(USART_IrDAMode)); - - USARTx->CR3 &= CR3_IRLP_Mask; - USARTx->CR3 |= USART_IrDAMode; -} - -/** - * @brief Enables or disables the USART's IrDA interface. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param NewState: new state of the IrDA mode. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void USART_IrDACmd(USART_TypeDef* USARTx, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the IrDA mode by setting the IREN bit in the CR3 register */ - USARTx->CR3 |= CR3_IREN_Set; - } - else - { - /* Disable the IrDA mode by clearing the IREN bit in the CR3 register */ - USARTx->CR3 &= CR3_IREN_Reset; - } -} - -/** - * @brief Checks whether the specified USART flag is set or not. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_FLAG: specifies the flag to check. - * This parameter can be one of the following values: - * @arg USART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5) - * @arg USART_FLAG_LBD: LIN Break detection flag - * @arg USART_FLAG_TXE: Transmit data register empty flag - * @arg USART_FLAG_TC: Transmission Complete flag - * @arg USART_FLAG_RXNE: Receive data register not empty flag - * @arg USART_FLAG_IDLE: Idle Line detection flag - * @arg USART_FLAG_ORE: OverRun Error flag - * @arg USART_FLAG_NE: Noise Error flag - * @arg USART_FLAG_FE: Framing Error flag - * @arg USART_FLAG_PE: Parity Error flag - * @retval The new state of USART_FLAG (SET or RESET). - */ -FlagStatus USART_GetFlagStatus(USART_TypeDef* USARTx, uint16_t USART_FLAG) -{ - FlagStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_FLAG(USART_FLAG)); - /* The CTS flag is not available for UART4 and UART5 */ - if (USART_FLAG == USART_FLAG_CTS) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - if ((USARTx->SR & USART_FLAG) != (uint16_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - return bitstatus; -} - -/** - * @brief Clears the USARTx's pending flags. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_FLAG: specifies the flag to clear. - * This parameter can be any combination of the following values: - * @arg USART_FLAG_CTS: CTS Change flag (not available for UART4 and UART5). - * @arg USART_FLAG_LBD: LIN Break detection flag. - * @arg USART_FLAG_TC: Transmission Complete flag. - * @arg USART_FLAG_RXNE: Receive data register not empty flag. - * - * @note - * - PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun - * error) and IDLE (Idle line detected) flags are cleared by software - * sequence: a read operation to USART_SR register (USART_GetFlagStatus()) - * followed by a read operation to USART_DR register (USART_ReceiveData()). - * - RXNE flag can be also cleared by a read to the USART_DR register - * (USART_ReceiveData()). - * - TC flag can be also cleared by software sequence: a read operation to - * USART_SR register (USART_GetFlagStatus()) followed by a write operation - * to USART_DR register (USART_SendData()). - * - TXE flag is cleared only by a write to the USART_DR register - * (USART_SendData()). - * @retval None - */ -void USART_ClearFlag(USART_TypeDef* USARTx, uint16_t USART_FLAG) -{ - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_CLEAR_FLAG(USART_FLAG)); - /* The CTS flag is not available for UART4 and UART5 */ - if ((USART_FLAG & USART_FLAG_CTS) == USART_FLAG_CTS) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - USARTx->SR = (uint16_t)~USART_FLAG; -} - -/** - * @brief Checks whether the specified USART interrupt has occurred or not. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_IT: specifies the USART interrupt source to check. - * This parameter can be one of the following values: - * @arg USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) - * @arg USART_IT_LBD: LIN Break detection interrupt - * @arg USART_IT_TXE: Tansmit Data Register empty interrupt - * @arg USART_IT_TC: Transmission complete interrupt - * @arg USART_IT_RXNE: Receive Data register not empty interrupt - * @arg USART_IT_IDLE: Idle line detection interrupt - * @arg USART_IT_ORE: OverRun Error interrupt - * @arg USART_IT_NE: Noise Error interrupt - * @arg USART_IT_FE: Framing Error interrupt - * @arg USART_IT_PE: Parity Error interrupt - * @retval The new state of USART_IT (SET or RESET). - */ -ITStatus USART_GetITStatus(USART_TypeDef* USARTx, uint16_t USART_IT) -{ - uint32_t bitpos = 0x00, itmask = 0x00, usartreg = 0x00; - ITStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_GET_IT(USART_IT)); - /* The CTS interrupt is not available for UART4 and UART5 */ - if (USART_IT == USART_IT_CTS) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - /* Get the USART register index */ - usartreg = (((uint8_t)USART_IT) >> 0x05); - /* Get the interrupt position */ - itmask = USART_IT & IT_Mask; - itmask = (uint32_t)0x01 << itmask; - - if (usartreg == 0x01) /* The IT is in CR1 register */ - { - itmask &= USARTx->CR1; - } - else if (usartreg == 0x02) /* The IT is in CR2 register */ - { - itmask &= USARTx->CR2; - } - else /* The IT is in CR3 register */ - { - itmask &= USARTx->CR3; - } - - bitpos = USART_IT >> 0x08; - bitpos = (uint32_t)0x01 << bitpos; - bitpos &= USARTx->SR; - if ((itmask != (uint16_t)RESET)&&(bitpos != (uint16_t)RESET)) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - - return bitstatus; -} - -/** - * @brief Clears the USARTx's interrupt pending bits. - * @param USARTx: Select the USART or the UART peripheral. - * This parameter can be one of the following values: - * USART1, USART2, USART3, UART4 or UART5. - * @param USART_IT: specifies the interrupt pending bit to clear. - * This parameter can be one of the following values: - * @arg USART_IT_CTS: CTS change interrupt (not available for UART4 and UART5) - * @arg USART_IT_LBD: LIN Break detection interrupt - * @arg USART_IT_TC: Transmission complete interrupt. - * @arg USART_IT_RXNE: Receive Data register not empty interrupt. - * - * @note - * - PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun - * error) and IDLE (Idle line detected) pending bits are cleared by - * software sequence: a read operation to USART_SR register - * (USART_GetITStatus()) followed by a read operation to USART_DR register - * (USART_ReceiveData()). - * - RXNE pending bit can be also cleared by a read to the USART_DR register - * (USART_ReceiveData()). - * - TC pending bit can be also cleared by software sequence: a read - * operation to USART_SR register (USART_GetITStatus()) followed by a write - * operation to USART_DR register (USART_SendData()). - * - TXE pending bit is cleared only by a write to the USART_DR register - * (USART_SendData()). - * @retval None - */ -void USART_ClearITPendingBit(USART_TypeDef* USARTx, uint16_t USART_IT) -{ - uint16_t bitpos = 0x00, itmask = 0x00; - /* Check the parameters */ - assert_param(IS_USART_ALL_PERIPH(USARTx)); - assert_param(IS_USART_CLEAR_IT(USART_IT)); - /* The CTS interrupt is not available for UART4 and UART5 */ - if (USART_IT == USART_IT_CTS) - { - assert_param(IS_USART_123_PERIPH(USARTx)); - } - - bitpos = USART_IT >> 0x08; - itmask = ((uint16_t)0x01 << (uint16_t)bitpos); - USARTx->SR = (uint16_t)~itmask; -} -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3