From 75abee206d1a575aa98a486d043c94d64df432c1 Mon Sep 17 00:00:00 2001 From: Damien George Date: Sun, 26 Jan 2014 17:41:01 +0000 Subject: stm: USB host mode working! Restructure stm library directories. --- stm/lib/stm32f4xx_i2c.h | 711 ------------------------------------------------ 1 file changed, 711 deletions(-) delete mode 100644 stm/lib/stm32f4xx_i2c.h (limited to 'stm/lib/stm32f4xx_i2c.h') diff --git a/stm/lib/stm32f4xx_i2c.h b/stm/lib/stm32f4xx_i2c.h deleted file mode 100644 index 87ca21284..000000000 --- a/stm/lib/stm32f4xx_i2c.h +++ /dev/null @@ -1,711 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f4xx_i2c.h - * @author MCD Application Team - * @version V1.3.0 - * @date 08-November-2013 - * @brief This file contains all the functions prototypes for the I2C firmware - * library. - ****************************************************************************** - * @attention - * - *

© COPYRIGHT 2013 STMicroelectronics

- * - * 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. - * - ****************************************************************************** - */ - -/* Define to prevent recursive inclusion -------------------------------------*/ -#ifndef __STM32F4xx_I2C_H -#define __STM32F4xx_I2C_H - -#ifdef __cplusplus - extern "C" { -#endif - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f4xx.h" - -/** @addtogroup STM32F4xx_StdPeriph_Driver - * @{ - */ - -/** @addtogroup I2C - * @{ - */ - -/* Exported types ------------------------------------------------------------*/ - -/** - * @brief I2C Init structure definition - */ - -typedef struct -{ - uint32_t I2C_ClockSpeed; /*!< Specifies the clock frequency. - This parameter must be set to a value lower than 400kHz */ - - uint16_t I2C_Mode; /*!< Specifies the I2C mode. - This parameter can be a value of @ref I2C_mode */ - - uint16_t I2C_DutyCycle; /*!< Specifies the I2C fast mode duty cycle. - This parameter can be a value of @ref I2C_duty_cycle_in_fast_mode */ - - uint16_t I2C_OwnAddress1; /*!< Specifies the first device own address. - This parameter can be a 7-bit or 10-bit address. */ - - uint16_t I2C_Ack; /*!< Enables or disables the acknowledgement. - This parameter can be a value of @ref I2C_acknowledgement */ - - uint16_t I2C_AcknowledgedAddress; /*!< Specifies if 7-bit or 10-bit address is acknowledged. - This parameter can be a value of @ref I2C_acknowledged_address */ -}I2C_InitTypeDef; - -/* Exported constants --------------------------------------------------------*/ - - -/** @defgroup I2C_Exported_Constants - * @{ - */ - -#define IS_I2C_ALL_PERIPH(PERIPH) (((PERIPH) == I2C1) || \ - ((PERIPH) == I2C2) || \ - ((PERIPH) == I2C3)) - -/** @defgroup I2C_Digital_Filter - * @{ - */ - -#define IS_I2C_DIGITAL_FILTER(FILTER) ((FILTER) <= 0x0000000F) -/** - * @} - */ - - -/** @defgroup I2C_mode - * @{ - */ - -#define I2C_Mode_I2C ((uint16_t)0x0000) -#define I2C_Mode_SMBusDevice ((uint16_t)0x0002) -#define I2C_Mode_SMBusHost ((uint16_t)0x000A) -#define IS_I2C_MODE(MODE) (((MODE) == I2C_Mode_I2C) || \ - ((MODE) == I2C_Mode_SMBusDevice) || \ - ((MODE) == I2C_Mode_SMBusHost)) -/** - * @} - */ - -/** @defgroup I2C_duty_cycle_in_fast_mode - * @{ - */ - -#define I2C_DutyCycle_16_9 ((uint16_t)0x4000) /*!< I2C fast mode Tlow/Thigh = 16/9 */ -#define I2C_DutyCycle_2 ((uint16_t)0xBFFF) /*!< I2C fast mode Tlow/Thigh = 2 */ -#define IS_I2C_DUTY_CYCLE(CYCLE) (((CYCLE) == I2C_DutyCycle_16_9) || \ - ((CYCLE) == I2C_DutyCycle_2)) -/** - * @} - */ - -/** @defgroup I2C_acknowledgement - * @{ - */ - -#define I2C_Ack_Enable ((uint16_t)0x0400) -#define I2C_Ack_Disable ((uint16_t)0x0000) -#define IS_I2C_ACK_STATE(STATE) (((STATE) == I2C_Ack_Enable) || \ - ((STATE) == I2C_Ack_Disable)) -/** - * @} - */ - -/** @defgroup I2C_transfer_direction - * @{ - */ - -#define I2C_Direction_Transmitter ((uint8_t)0x00) -#define I2C_Direction_Receiver ((uint8_t)0x01) -#define IS_I2C_DIRECTION(DIRECTION) (((DIRECTION) == I2C_Direction_Transmitter) || \ - ((DIRECTION) == I2C_Direction_Receiver)) -/** - * @} - */ - -/** @defgroup I2C_acknowledged_address - * @{ - */ - -#define I2C_AcknowledgedAddress_7bit ((uint16_t)0x4000) -#define I2C_AcknowledgedAddress_10bit ((uint16_t)0xC000) -#define IS_I2C_ACKNOWLEDGE_ADDRESS(ADDRESS) (((ADDRESS) == I2C_AcknowledgedAddress_7bit) || \ - ((ADDRESS) == I2C_AcknowledgedAddress_10bit)) -/** - * @} - */ - -/** @defgroup I2C_registers - * @{ - */ - -#define I2C_Register_CR1 ((uint8_t)0x00) -#define I2C_Register_CR2 ((uint8_t)0x04) -#define I2C_Register_OAR1 ((uint8_t)0x08) -#define I2C_Register_OAR2 ((uint8_t)0x0C) -#define I2C_Register_DR ((uint8_t)0x10) -#define I2C_Register_SR1 ((uint8_t)0x14) -#define I2C_Register_SR2 ((uint8_t)0x18) -#define I2C_Register_CCR ((uint8_t)0x1C) -#define I2C_Register_TRISE ((uint8_t)0x20) -#define IS_I2C_REGISTER(REGISTER) (((REGISTER) == I2C_Register_CR1) || \ - ((REGISTER) == I2C_Register_CR2) || \ - ((REGISTER) == I2C_Register_OAR1) || \ - ((REGISTER) == I2C_Register_OAR2) || \ - ((REGISTER) == I2C_Register_DR) || \ - ((REGISTER) == I2C_Register_SR1) || \ - ((REGISTER) == I2C_Register_SR2) || \ - ((REGISTER) == I2C_Register_CCR) || \ - ((REGISTER) == I2C_Register_TRISE)) -/** - * @} - */ - -/** @defgroup I2C_NACK_position - * @{ - */ - -#define I2C_NACKPosition_Next ((uint16_t)0x0800) -#define I2C_NACKPosition_Current ((uint16_t)0xF7FF) -#define IS_I2C_NACK_POSITION(POSITION) (((POSITION) == I2C_NACKPosition_Next) || \ - ((POSITION) == I2C_NACKPosition_Current)) -/** - * @} - */ - -/** @defgroup I2C_SMBus_alert_pin_level - * @{ - */ - -#define I2C_SMBusAlert_Low ((uint16_t)0x2000) -#define I2C_SMBusAlert_High ((uint16_t)0xDFFF) -#define IS_I2C_SMBUS_ALERT(ALERT) (((ALERT) == I2C_SMBusAlert_Low) || \ - ((ALERT) == I2C_SMBusAlert_High)) -/** - * @} - */ - -/** @defgroup I2C_PEC_position - * @{ - */ - -#define I2C_PECPosition_Next ((uint16_t)0x0800) -#define I2C_PECPosition_Current ((uint16_t)0xF7FF) -#define IS_I2C_PEC_POSITION(POSITION) (((POSITION) == I2C_PECPosition_Next) || \ - ((POSITION) == I2C_PECPosition_Current)) -/** - * @} - */ - -/** @defgroup I2C_interrupts_definition - * @{ - */ - -#define I2C_IT_BUF ((uint16_t)0x0400) -#define I2C_IT_EVT ((uint16_t)0x0200) -#define I2C_IT_ERR ((uint16_t)0x0100) -#define IS_I2C_CONFIG_IT(IT) ((((IT) & (uint16_t)0xF8FF) == 0x00) && ((IT) != 0x00)) -/** - * @} - */ - -/** @defgroup I2C_interrupts_definition - * @{ - */ - -#define I2C_IT_SMBALERT ((uint32_t)0x01008000) -#define I2C_IT_TIMEOUT ((uint32_t)0x01004000) -#define I2C_IT_PECERR ((uint32_t)0x01001000) -#define I2C_IT_OVR ((uint32_t)0x01000800) -#define I2C_IT_AF ((uint32_t)0x01000400) -#define I2C_IT_ARLO ((uint32_t)0x01000200) -#define I2C_IT_BERR ((uint32_t)0x01000100) -#define I2C_IT_TXE ((uint32_t)0x06000080) -#define I2C_IT_RXNE ((uint32_t)0x06000040) -#define I2C_IT_STOPF ((uint32_t)0x02000010) -#define I2C_IT_ADD10 ((uint32_t)0x02000008) -#define I2C_IT_BTF ((uint32_t)0x02000004) -#define I2C_IT_ADDR ((uint32_t)0x02000002) -#define I2C_IT_SB ((uint32_t)0x02000001) - -#define IS_I2C_CLEAR_IT(IT) ((((IT) & (uint16_t)0x20FF) == 0x00) && ((IT) != (uint16_t)0x00)) - -#define IS_I2C_GET_IT(IT) (((IT) == I2C_IT_SMBALERT) || ((IT) == I2C_IT_TIMEOUT) || \ - ((IT) == I2C_IT_PECERR) || ((IT) == I2C_IT_OVR) || \ - ((IT) == I2C_IT_AF) || ((IT) == I2C_IT_ARLO) || \ - ((IT) == I2C_IT_BERR) || ((IT) == I2C_IT_TXE) || \ - ((IT) == I2C_IT_RXNE) || ((IT) == I2C_IT_STOPF) || \ - ((IT) == I2C_IT_ADD10) || ((IT) == I2C_IT_BTF) || \ - ((IT) == I2C_IT_ADDR) || ((IT) == I2C_IT_SB)) -/** - * @} - */ - -/** @defgroup I2C_flags_definition - * @{ - */ - -/** - * @brief SR2 register flags - */ - -#define I2C_FLAG_DUALF ((uint32_t)0x00800000) -#define I2C_FLAG_SMBHOST ((uint32_t)0x00400000) -#define I2C_FLAG_SMBDEFAULT ((uint32_t)0x00200000) -#define I2C_FLAG_GENCALL ((uint32_t)0x00100000) -#define I2C_FLAG_TRA ((uint32_t)0x00040000) -#define I2C_FLAG_BUSY ((uint32_t)0x00020000) -#define I2C_FLAG_MSL ((uint32_t)0x00010000) - -/** - * @brief SR1 register flags - */ - -#define I2C_FLAG_SMBALERT ((uint32_t)0x10008000) -#define I2C_FLAG_TIMEOUT ((uint32_t)0x10004000) -#define I2C_FLAG_PECERR ((uint32_t)0x10001000) -#define I2C_FLAG_OVR ((uint32_t)0x10000800) -#define I2C_FLAG_AF ((uint32_t)0x10000400) -#define I2C_FLAG_ARLO ((uint32_t)0x10000200) -#define I2C_FLAG_BERR ((uint32_t)0x10000100) -#define I2C_FLAG_TXE ((uint32_t)0x10000080) -#define I2C_FLAG_RXNE ((uint32_t)0x10000040) -#define I2C_FLAG_STOPF ((uint32_t)0x10000010) -#define I2C_FLAG_ADD10 ((uint32_t)0x10000008) -#define I2C_FLAG_BTF ((uint32_t)0x10000004) -#define I2C_FLAG_ADDR ((uint32_t)0x10000002) -#define I2C_FLAG_SB ((uint32_t)0x10000001) - -#define IS_I2C_CLEAR_FLAG(FLAG) ((((FLAG) & (uint16_t)0x20FF) == 0x00) && ((FLAG) != (uint16_t)0x00)) - -#define IS_I2C_GET_FLAG(FLAG) (((FLAG) == I2C_FLAG_DUALF) || ((FLAG) == I2C_FLAG_SMBHOST) || \ - ((FLAG) == I2C_FLAG_SMBDEFAULT) || ((FLAG) == I2C_FLAG_GENCALL) || \ - ((FLAG) == I2C_FLAG_TRA) || ((FLAG) == I2C_FLAG_BUSY) || \ - ((FLAG) == I2C_FLAG_MSL) || ((FLAG) == I2C_FLAG_SMBALERT) || \ - ((FLAG) == I2C_FLAG_TIMEOUT) || ((FLAG) == I2C_FLAG_PECERR) || \ - ((FLAG) == I2C_FLAG_OVR) || ((FLAG) == I2C_FLAG_AF) || \ - ((FLAG) == I2C_FLAG_ARLO) || ((FLAG) == I2C_FLAG_BERR) || \ - ((FLAG) == I2C_FLAG_TXE) || ((FLAG) == I2C_FLAG_RXNE) || \ - ((FLAG) == I2C_FLAG_STOPF) || ((FLAG) == I2C_FLAG_ADD10) || \ - ((FLAG) == I2C_FLAG_BTF) || ((FLAG) == I2C_FLAG_ADDR) || \ - ((FLAG) == I2C_FLAG_SB)) -/** - * @} - */ - -/** @defgroup I2C_Events - * @{ - */ - -/** - =============================================================================== - I2C Master Events (Events grouped in order of communication) - =============================================================================== - */ - -/** - * @brief Communication start - * - * After sending the START condition (I2C_GenerateSTART() function) the master - * has to wait for this event. It means that the Start condition has been correctly - * released on the I2C bus (the bus is free, no other devices is communicating). - * - */ -/* --EV5 */ -#define I2C_EVENT_MASTER_MODE_SELECT ((uint32_t)0x00030001) /* BUSY, MSL and SB flag */ - -/** - * @brief Address Acknowledge - * - * After checking on EV5 (start condition correctly released on the bus), the - * master sends the address of the slave(s) with which it will communicate - * (I2C_Send7bitAddress() function, it also determines the direction of the communication: - * Master transmitter or Receiver). Then the master has to wait that a slave acknowledges - * his address. If an acknowledge is sent on the bus, one of the following events will - * be set: - * - * 1) In case of Master Receiver (7-bit addressing): the I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED - * event is set. - * - * 2) In case of Master Transmitter (7-bit addressing): the I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED - * is set - * - * 3) In case of 10-Bit addressing mode, the master (just after generating the START - * and checking on EV5) has to send the header of 10-bit addressing mode (I2C_SendData() - * function). Then master should wait on EV9. It means that the 10-bit addressing - * header has been correctly sent on the bus. Then master should send the second part of - * the 10-bit address (LSB) using the function I2C_Send7bitAddress(). Then master - * should wait for event EV6. - * - */ - -/* --EV6 */ -#define I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED ((uint32_t)0x00070082) /* BUSY, MSL, ADDR, TXE and TRA flags */ -#define I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED ((uint32_t)0x00030002) /* BUSY, MSL and ADDR flags */ -/* --EV9 */ -#define I2C_EVENT_MASTER_MODE_ADDRESS10 ((uint32_t)0x00030008) /* BUSY, MSL and ADD10 flags */ - -/** - * @brief Communication events - * - * If a communication is established (START condition generated and slave address - * acknowledged) then the master has to check on one of the following events for - * communication procedures: - * - * 1) Master Receiver mode: The master has to wait on the event EV7 then to read - * the data received from the slave (I2C_ReceiveData() function). - * - * 2) Master Transmitter mode: The master has to send data (I2C_SendData() - * function) then to wait on event EV8 or EV8_2. - * These two events are similar: - * - EV8 means that the data has been written in the data register and is - * being shifted out. - * - EV8_2 means that the data has been physically shifted out and output - * on the bus. - * In most cases, using EV8 is sufficient for the application. - * Using EV8_2 leads to a slower communication but ensure more reliable test. - * EV8_2 is also more suitable than EV8 for testing on the last data transmission - * (before Stop condition generation). - * - * @note In case the user software does not guarantee that this event EV7 is - * managed before the current byte end of transfer, then user may check on EV7 - * and BTF flag at the same time (ie. (I2C_EVENT_MASTER_BYTE_RECEIVED | I2C_FLAG_BTF)). - * In this case the communication may be slower. - * - */ - -/* Master RECEIVER mode -----------------------------*/ -/* --EV7 */ -#define I2C_EVENT_MASTER_BYTE_RECEIVED ((uint32_t)0x00030040) /* BUSY, MSL and RXNE flags */ - -/* Master TRANSMITTER mode --------------------------*/ -/* --EV8 */ -#define I2C_EVENT_MASTER_BYTE_TRANSMITTING ((uint32_t)0x00070080) /* TRA, BUSY, MSL, TXE flags */ -/* --EV8_2 */ -#define I2C_EVENT_MASTER_BYTE_TRANSMITTED ((uint32_t)0x00070084) /* TRA, BUSY, MSL, TXE and BTF flags */ - - -/** - =============================================================================== - I2C Slave Events (Events grouped in order of communication) - =============================================================================== - */ - - -/** - * @brief Communication start events - * - * Wait on one of these events at the start of the communication. It means that - * the I2C peripheral detected a Start condition on the bus (generated by master - * device) followed by the peripheral address. The peripheral generates an ACK - * condition on the bus (if the acknowledge feature is enabled through function - * I2C_AcknowledgeConfig()) and the events listed above are set : - * - * 1) In normal case (only one address managed by the slave), when the address - * sent by the master matches the own address of the peripheral (configured by - * I2C_OwnAddress1 field) the I2C_EVENT_SLAVE_XXX_ADDRESS_MATCHED event is set - * (where XXX could be TRANSMITTER or RECEIVER). - * - * 2) In case the address sent by the master matches the second address of the - * peripheral (configured by the function I2C_OwnAddress2Config() and enabled - * by the function I2C_DualAddressCmd()) the events I2C_EVENT_SLAVE_XXX_SECONDADDRESS_MATCHED - * (where XXX could be TRANSMITTER or RECEIVER) are set. - * - * 3) In case the address sent by the master is General Call (address 0x00) and - * if the General Call is enabled for the peripheral (using function I2C_GeneralCallCmd()) - * the following event is set I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED. - * - */ - -/* --EV1 (all the events below are variants of EV1) */ -/* 1) Case of One Single Address managed by the slave */ -#define I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED ((uint32_t)0x00020002) /* BUSY and ADDR flags */ -#define I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED ((uint32_t)0x00060082) /* TRA, BUSY, TXE and ADDR flags */ - -/* 2) Case of Dual address managed by the slave */ -#define I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED ((uint32_t)0x00820000) /* DUALF and BUSY flags */ -#define I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED ((uint32_t)0x00860080) /* DUALF, TRA, BUSY and TXE flags */ - -/* 3) Case of General Call enabled for the slave */ -#define I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED ((uint32_t)0x00120000) /* GENCALL and BUSY flags */ - -/** - * @brief Communication events - * - * Wait on one of these events when EV1 has already been checked and: - * - * - Slave RECEIVER mode: - * - EV2: When the application is expecting a data byte to be received. - * - EV4: When the application is expecting the end of the communication: master - * sends a stop condition and data transmission is stopped. - * - * - Slave Transmitter mode: - * - EV3: When a byte has been transmitted by the slave and the application is expecting - * the end of the byte transmission. The two events I2C_EVENT_SLAVE_BYTE_TRANSMITTED and - * I2C_EVENT_SLAVE_BYTE_TRANSMITTING are similar. The second one can optionally be - * used when the user software doesn't guarantee the EV3 is managed before the - * current byte end of transfer. - * - EV3_2: When the master sends a NACK in order to tell slave that data transmission - * shall end (before sending the STOP condition). In this case slave has to stop sending - * data bytes and expect a Stop condition on the bus. - * - * @note In case the user software does not guarantee that the event EV2 is - * managed before the current byte end of transfer, then user may check on EV2 - * and BTF flag at the same time (ie. (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_BTF)). - * In this case the communication may be slower. - * - */ - -/* Slave RECEIVER mode --------------------------*/ -/* --EV2 */ -#define I2C_EVENT_SLAVE_BYTE_RECEIVED ((uint32_t)0x00020040) /* BUSY and RXNE flags */ -/* --EV4 */ -#define I2C_EVENT_SLAVE_STOP_DETECTED ((uint32_t)0x00000010) /* STOPF flag */ - -/* Slave TRANSMITTER mode -----------------------*/ -/* --EV3 */ -#define I2C_EVENT_SLAVE_BYTE_TRANSMITTED ((uint32_t)0x00060084) /* TRA, BUSY, TXE and BTF flags */ -#define I2C_EVENT_SLAVE_BYTE_TRANSMITTING ((uint32_t)0x00060080) /* TRA, BUSY and TXE flags */ -/* --EV3_2 */ -#define I2C_EVENT_SLAVE_ACK_FAILURE ((uint32_t)0x00000400) /* AF flag */ - -/* - =============================================================================== - End of Events Description - =============================================================================== - */ - -#define IS_I2C_EVENT(EVENT) (((EVENT) == I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED) || \ - ((EVENT) == I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED) || \ - ((EVENT) == I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED) || \ - ((EVENT) == I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED) || \ - ((EVENT) == I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED) || \ - ((EVENT) == I2C_EVENT_SLAVE_BYTE_RECEIVED) || \ - ((EVENT) == (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_DUALF)) || \ - ((EVENT) == (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_GENCALL)) || \ - ((EVENT) == I2C_EVENT_SLAVE_BYTE_TRANSMITTED) || \ - ((EVENT) == (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_DUALF)) || \ - ((EVENT) == (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_GENCALL)) || \ - ((EVENT) == I2C_EVENT_SLAVE_STOP_DETECTED) || \ - ((EVENT) == I2C_EVENT_MASTER_MODE_SELECT) || \ - ((EVENT) == I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED) || \ - ((EVENT) == I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED) || \ - ((EVENT) == I2C_EVENT_MASTER_BYTE_RECEIVED) || \ - ((EVENT) == I2C_EVENT_MASTER_BYTE_TRANSMITTED) || \ - ((EVENT) == I2C_EVENT_MASTER_BYTE_TRANSMITTING) || \ - ((EVENT) == I2C_EVENT_MASTER_MODE_ADDRESS10) || \ - ((EVENT) == I2C_EVENT_SLAVE_ACK_FAILURE)) -/** - * @} - */ - -/** @defgroup I2C_own_address1 - * @{ - */ - -#define IS_I2C_OWN_ADDRESS1(ADDRESS1) ((ADDRESS1) <= 0x3FF) -/** - * @} - */ - -/** @defgroup I2C_clock_speed - * @{ - */ - -#define IS_I2C_CLOCK_SPEED(SPEED) (((SPEED) >= 0x1) && ((SPEED) <= 400000)) -/** - * @} - */ - -/** - * @} - */ - -/* Exported macro ------------------------------------------------------------*/ -/* Exported functions --------------------------------------------------------*/ - -/* Function used to set the I2C configuration to the default reset state *****/ -void I2C_DeInit(I2C_TypeDef* I2Cx); - -/* Initialization and Configuration functions *********************************/ -void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct); -void I2C_StructInit(I2C_InitTypeDef* I2C_InitStruct); -void I2C_Cmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_DigitalFilterConfig(I2C_TypeDef* I2Cx, uint16_t I2C_DigitalFilter); -void I2C_AnalogFilterCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_GenerateSTART(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_GenerateSTOP(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, uint8_t Address, uint8_t I2C_Direction); -void I2C_AcknowledgeConfig(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_OwnAddress2Config(I2C_TypeDef* I2Cx, uint8_t Address); -void I2C_DualAddressCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_SoftwareResetCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_StretchClockCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_FastModeDutyCycleConfig(I2C_TypeDef* I2Cx, uint16_t I2C_DutyCycle); -void I2C_NACKPositionConfig(I2C_TypeDef* I2Cx, uint16_t I2C_NACKPosition); -void I2C_SMBusAlertConfig(I2C_TypeDef* I2Cx, uint16_t I2C_SMBusAlert); -void I2C_ARPCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); - -/* Data transfers functions ***************************************************/ -void I2C_SendData(I2C_TypeDef* I2Cx, uint8_t Data); -uint8_t I2C_ReceiveData(I2C_TypeDef* I2Cx); - -/* PEC management functions ***************************************************/ -void I2C_TransmitPEC(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_PECPositionConfig(I2C_TypeDef* I2Cx, uint16_t I2C_PECPosition); -void I2C_CalculatePEC(I2C_TypeDef* I2Cx, FunctionalState NewState); -uint8_t I2C_GetPEC(I2C_TypeDef* I2Cx); - -/* DMA transfers management functions *****************************************/ -void I2C_DMACmd(I2C_TypeDef* I2Cx, FunctionalState NewState); -void I2C_DMALastTransferCmd(I2C_TypeDef* I2Cx, FunctionalState NewState); - -/* Interrupts, events and flags management functions **************************/ -uint16_t I2C_ReadRegister(I2C_TypeDef* I2Cx, uint8_t I2C_Register); -void I2C_ITConfig(I2C_TypeDef* I2Cx, uint16_t I2C_IT, FunctionalState NewState); - -/* - =============================================================================== - I2C State Monitoring Functions - =============================================================================== - This I2C driver provides three different ways for I2C state monitoring - depending on the application requirements and constraints: - - - 1. Basic state monitoring (Using I2C_CheckEvent() function) - ----------------------------------------------------------- - It compares the status registers (SR1 and SR2) content to a given event - (can be the combination of one or more flags). - It returns SUCCESS if the current status includes the given flags - and returns ERROR if one or more flags are missing in the current status. - - - When to use - - This function is suitable for most applications as well as for startup - activity since the events are fully described in the product reference - manual (RM0090). - - It is also suitable for users who need to define their own events. - - - Limitations - - If an error occurs (ie. error flags are set besides to the monitored - flags), the I2C_CheckEvent() function may return SUCCESS despite - the communication hold or corrupted real state. - In this case, it is advised to use error interrupts to monitor - the error events and handle them in the interrupt IRQ handler. - - Note - For error management, it is advised to use the following functions: - - I2C_ITConfig() to configure and enable the error interrupts (I2C_IT_ERR). - - I2Cx_ER_IRQHandler() which is called when the error interrupt occurs. - Where x is the peripheral instance (I2C1, I2C2 ...) - - I2C_GetFlagStatus() or I2C_GetITStatus() to be called into the - I2Cx_ER_IRQHandler() function in order to determine which error occurred. - - I2C_ClearFlag() or I2C_ClearITPendingBit() and/or I2C_SoftwareResetCmd() - and/or I2C_GenerateStop() in order to clear the error flag and source - and return to correct communication status. - - - 2. Advanced state monitoring (Using the function I2C_GetLastEvent()) - -------------------------------------------------------------------- - Using the function I2C_GetLastEvent() which returns the image of both status - registers in a single word (uint32_t) (Status Register 2 value is shifted left - by 16 bits and concatenated to Status Register 1). - - - When to use - - This function is suitable for the same applications above but it - allows to overcome the mentioned limitation of I2C_GetFlagStatus() - function. - - The returned value could be compared to events already defined in - this file or to custom values defined by user. - This function is suitable when multiple flags are monitored at the - same time. - - At the opposite of I2C_CheckEvent() function, this function allows - user to choose when an event is accepted (when all events flags are - set and no other flags are set or just when the needed flags are set - like I2C_CheckEvent() function. - - - Limitations - - User may need to define his own events. - - Same remark concerning the error management is applicable for this - function if user decides to check only regular communication flags - (and ignores error flags). - - - 3. Flag-based state monitoring (Using the function I2C_GetFlagStatus()) - ----------------------------------------------------------------------- - - Using the function I2C_GetFlagStatus() which simply returns the status of - one single flag (ie. I2C_FLAG_RXNE ...). - - - When to use - - This function could be used for specific applications or in debug - phase. - - It is suitable when only one flag checking is needed (most I2C - events are monitored through multiple flags). - - Limitations: - - When calling this function, the Status register is accessed. - Some flags are cleared when the status register is accessed. - So checking the status of one Flag, may clear other ones. - - Function may need to be called twice or more in order to monitor - one single event. - */ - -/* - =============================================================================== - 1. Basic state monitoring - =============================================================================== - */ -ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, uint32_t I2C_EVENT); -/* - =============================================================================== - 2. Advanced state monitoring - =============================================================================== - */ -uint32_t I2C_GetLastEvent(I2C_TypeDef* I2Cx); -/* - =============================================================================== - 3. Flag-based state monitoring - =============================================================================== - */ -FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG); - - -void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG); -ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT); -void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT); - -#ifdef __cplusplus -} -#endif - -#endif /*__STM32F4xx_I2C_H */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3