kopia lustrzana https://github.com/OpenRTX/OpenRTX
67 wiersze
2.4 KiB
C++
67 wiersze
2.4 KiB
C++
/***************************************************************************
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* Copyright (C) 2022 - 2023 by Federico Amedeo Izzo IU2NUO, *
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* Niccolò Izzo IU2KIN *
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* Frederik Saraci IU2NRO *
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* Silvano Seva IU2KWO *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#include <interfaces/platform.h>
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#include <peripherals/gpio.h>
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#include <hwconfig.h>
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#include "usb.h"
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/*
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* USB interrupt handler.
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*
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void OTG_FS_IRQHandler(void)
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{
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tud_int_handler(0);
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}
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*/
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void usb_init()
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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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__DSB();
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// Disable VBUS detection and activate the USB transceiver
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USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_NOVBUSSENS
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| USB_OTG_GCCFG_PWRDWN;
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// Force USB device mode
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USB_OTG_FS->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
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NVIC_SetPriority(OTG_FS_IRQn, 14);
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tusb_init();
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}
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void usb_terminate()
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{
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RCC->AHB2ENR &= ~RCC_AHB2ENR_OTGFSEN;
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__DSB();
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}
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