kopia lustrzana https://github.com/sq8vps/vp-digi
43 wiersze
1.2 KiB
C
43 wiersze
1.2 KiB
C
/*
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Copyright 2020-2023 Piotr Wilkon
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This file is part of VP-Digi.
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VP-Digi 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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VP-Digi 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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You should have received a copy of the GNU General Public License
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along with VP-Digi. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DRIVERS_USB_H_
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#define DRIVERS_USB_H_
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#include "systick.h"
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#if defined(STM32F103xB) || defined(STM32F103x8)
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#include "stm32f1xx.h"
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#define USB_FORCE_REENUMERATION() { \
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/* Pull D+ to ground for a moment to force reenumeration */ \
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RCC->APB2ENR |= RCC_APB2ENR_IOPAEN; \
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GPIOA->CRH |= GPIO_CRH_MODE12_1; \
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GPIOA->CRH &= ~GPIO_CRH_CNF12; \
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GPIOA->BSRR = GPIO_BSRR_BR12; \
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Delay(100); \
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GPIOA->CRH &= ~GPIO_CRH_MODE12; \
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GPIOA->CRH |= GPIO_CRH_CNF12_0; \
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} \
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#endif
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#endif /* DRIVERS_USB_H_ */
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