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stm32f7_eth_init.c
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stm32f7_eth_init.c
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/* mbed Microcontroller Library
* Copyright (c) 2018, 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 USE_USER_DEFINED_HAL_ETH_MSPINIT
#include "stm32f7xx_hal.h"
/**
* Override HAL Eth Init function
*/
void HAL_ETH_MspInit(ETH_HandleTypeDef* heth)
{
GPIO_InitTypeDef GPIO_InitStructure;
if (heth->Instance == ETH) {
/* Disable DCache for STM32F7 family */
SCB_DisableDCache();
/* Enable GPIOs clocks */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
/** ETH GPIO Configuration
RMII_REF_CLK ----------------------> PA1
RMII_MDIO -------------------------> PA2
RMII_MDC --------------------------> PC1
RMII_MII_CRS_DV -------------------> PA7
RMII_MII_RXD0 ---------------------> PC4
RMII_MII_RXD1 ---------------------> PC5
RMII_MII_RXER ---------------------> PG2
RMII_MII_TX_EN --------------------> PG11
RMII_MII_TXD0 ---------------------> PG13
RMII_MII_TXD1 ---------------------> PB13
*/
/* Configure PA1, PA2 and PA7 */
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Alternate = GPIO_AF11_ETH;
GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_7;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure PB13 */
GPIO_InitStructure.Pin = GPIO_PIN_13;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure PC1, PC4 and PC5 */
GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure PG2, PG11 and PG13 */
GPIO_InitStructure.Pin = GPIO_PIN_2 | GPIO_PIN_11 | GPIO_PIN_13;
HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
/* Enable the Ethernet global Interrupt */
HAL_NVIC_SetPriority(ETH_IRQn, 0x7, 0);
HAL_NVIC_EnableIRQ(ETH_IRQn);
/* Enable ETHERNET clock */
__HAL_RCC_ETH_CLK_ENABLE();
}
}
/**
* Override HAL Eth DeInit function
*/
void HAL_ETH_MspDeInit(ETH_HandleTypeDef* heth)
{
if (heth->Instance == ETH) {
/* Peripheral clock disable */
__HAL_RCC_ETH_CLK_DISABLE();
/** ETH GPIO Configuration
RMII_REF_CLK ----------------------> PA1
RMII_MDIO -------------------------> PA2
RMII_MDC --------------------------> PC1
RMII_MII_CRS_DV -------------------> PA7
RMII_MII_RXD0 ---------------------> PC4
RMII_MII_RXD1 ---------------------> PC5
RMII_MII_RXER ---------------------> PG2
RMII_MII_TX_EN --------------------> PG11
RMII_MII_TXD0 ---------------------> PG13
RMII_MII_TXD1 ---------------------> PB13
*/
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_7);
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_13);
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5);
HAL_GPIO_DeInit(GPIOG, GPIO_PIN_2 | GPIO_PIN_11 | GPIO_PIN_13);
/* Disable the Ethernet global Interrupt */
NVIC_DisableIRQ(ETH_IRQn);
}
}
#endif /* USE_USER_DEFINED_HAL_ETH_MSPINIT */