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29 lines
596 B
C
29 lines
596 B
C
#include "ch.h"
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#include "hal.h"
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#include "usb_lld.h"
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extern void USB_Istr (void);
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CH_IRQ_HANDLER (Vector90) {
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CH_IRQ_PROLOGUE();
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chSysLockFromIsr();
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USB_Istr();
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chSysUnlockFromIsr();
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CH_IRQ_EPILOGUE();
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}
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void usb_lld_init (void) {
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RCC->APB1ENR |= RCC_APB1ENR_USBEN;
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NVICEnableVector (USB_LP_CAN1_RX0_IRQn,
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CORTEX_PRIORITY_MASK (STM32_USB_IRQ_PRIORITY));
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/*
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* Note that we also have other IRQ(s):
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* USB_HP_CAN1_TX_IRQn (for double-buffered or isochronous)
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* USBWakeUp_IRQn (suspend/resume)
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*/
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RCC->APB1RSTR = RCC_APB1RSTR_USBRST;
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RCC->APB1RSTR = 0;
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}
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