kopia lustrzana https://github.com/OpenRTX/OpenRTX
108 wiersze
2.9 KiB
C
108 wiersze
2.9 KiB
C
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/**
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******************************************************************************
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* @file usb_bsp.c
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* @author MCD Application Team
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* @version V1.1.0
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* @date 19-March-2012
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* @brief This file is responsible to offer board support package and is
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* configurable by user.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2012 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "usb_bsp.h"
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#include "usbd_conf.h"
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#include "stm32f4xx.h"
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#include "gpio.h"
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extern USB_OTG_CORE_HANDLE USB_OTG_dev;
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extern uint32_t USBD_OTG_ISR_Handler(USB_OTG_CORE_HANDLE *pdev);
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/**
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* @brief USB_OTG_BSP_Init
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* Initilizes BSP configurations
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* @param None
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* @retval None
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*/
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void USB_OTG_BSP_Init(USB_OTG_CORE_HANDLE *pdev)
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{
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gpio_setMode(GPIOA, 11, ALTERNATE);
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gpio_setAlternateFunction(GPIOA, 11, 10);
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gpio_setOutputSpeed(GPIOA, 11, HIGH); // 100MHz output speed
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gpio_setMode(GPIOA, 12, ALTERNATE);
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gpio_setAlternateFunction(GPIOA, 12, 10);
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gpio_setOutputSpeed(GPIOA, 12, HIGH); // 100MHz output speed
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RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
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RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
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}
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/**
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* @brief USB_OTG_BSP_EnableInterrupt
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* Enabele USB Global interrupt
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* @param None
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* @retval None
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*/
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void USB_OTG_BSP_EnableInterrupt(USB_OTG_CORE_HANDLE *pdev)
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{
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NVIC_ClearPendingIRQ(OTG_FS_IRQn);
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NVIC_SetPriority(OTG_FS_IRQn, 14);
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NVIC_EnableIRQ(OTG_FS_IRQn);
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}
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/**
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* @brief USB_OTG_BSP_uDelay
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* This function provides delay time in micro sec
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* @param usec : Value of delay required in micro sec
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* @retval None
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*/
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void USB_OTG_BSP_uDelay (const uint32_t usec) {
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uint32_t count = 0;
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const uint32_t utime = (120 * usec / 7);
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do
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{
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if( ++count > utime )
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{
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return ;
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}
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} while (1);
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}
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/**
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* @brief USB_OTG_BSP_mDelay
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* This function provides delay time in milli sec
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* @param msec : Value of delay required in milli sec
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* @retval None
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*/
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void USB_OTG_BSP_mDelay (const uint32_t msec)
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{
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USB_OTG_BSP_uDelay(msec * 1000);
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}
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void OTG_FS_IRQHandler(void)
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{
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USBD_OTG_ISR_Handler (&USB_OTG_dev);
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}
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