/* mbed Microcontroller Library ******************************************************************************* * Copyright (c) 2015-2021, STMicroelectronics * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ******************************************************************************* */ #ifndef MBED_I2C_DEVICE_H #define MBED_I2C_DEVICE_H #include "PeripheralNames.h" #ifdef __cplusplus extern "C" { #endif /* Define I2C Device */ #if DEVICE_I2C #define TIMING_VAL_54M_CLK_100KHZ 0x10916998 // Standard mode with Rise time = 120ns, Fall time = 120ns #define TIMING_VAL_54M_CLK_400KHZ 0x00B11B54 // Fast Mode with Rise time = 120ns, Fall time = 120ns #define TIMING_VAL_54M_CLK_1MHZ 0x0090091B // Fast Mode Plus with Rise time = 120ns, Fall time = 10ns #define I2C_PCLK_54M 54000000 // 54 MHz /* Define IP version */ #define I2C_IP_VERSION_V2 #define I2C_IT_ALL (I2C_IT_ERRI|I2C_IT_TCI|I2C_IT_STOPI|I2C_IT_NACKI|I2C_IT_ADDRI|I2C_IT_RXI|I2C_IT_TXI) /* Family specifc settings for clock source */ #define I2CAPI_I2C1_CLKSRC RCC_I2C1CLKSOURCE_PCLK1 #define I2CAPI_I2C2_CLKSRC RCC_I2C2CLKSOURCE_PCLK1 #define I2CAPI_I2C3_CLKSRC RCC_I2C3CLKSOURCE_PCLK1 #define I2CAPI_I2C4_CLKSRC RCC_I2C4CLKSOURCE_PCLK1 uint32_t i2c_get_pclk(I2CName i2c); uint32_t i2c_get_timing(I2CName i2c, uint32_t current_timing, int current_hz, int hz); #if MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO uint32_t i2c_compute_timing(uint32_t clock_src_freq, uint32_t i2c_freq); void i2c_compute_presc_scldel_sdadel(uint32_t clock_src_freq, uint32_t I2C_speed); uint32_t i2c_compute_scll_sclh(uint32_t clock_src_freq, uint32_t I2C_speed); #endif // MBED_CONF_TARGET_I2C_TIMING_VALUE_ALGO #endif // DEVICE_I2C #ifdef __cplusplus } #endif #endif