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Code Issues Releases Activity

Remap USB IRQs on STM32F303 BSP

This commit is contained in:
Niklas Hauser 2020-10-11 09:27:43 +02:00
parent f914e48d25
commit 7fda95f508
1 changed files with 13 additions and 7 deletions
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20
hw/bsp/stm32f303disco/stm32f303disco.c
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@ -31,27 +31,29 @@
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
// USB defaults to using interrupts 19, 20, and 42 (based on SYSCFG_CFGR1.USB_IT_RMP)
// USB defaults to using interrupts 19, 20 and 42, however, this BSP sets the
// SYSCFG_CFGR1.USB_IT_RMP bit remapping interrupts to 74, 75 and 76.
// FIXME: Do all three need to be handled, or just the LP one?
// USB high-priority interrupt (Channel 19): Triggered only by a correct
// USB high-priority interrupt (Channel 74): Triggered only by a correct
// transfer event for isochronous and double-buffer bulk transfer to reach
// the highest possible transfer rate.
void USB_HP_CAN_TX_IRQHandler(void)
void USB_HP_IRQHandler(void)
{
tud_int_handler(0);
}
// USB low-priority interrupt (Channel 20): Triggered by all USB events
// USB low-priority interrupt (Channel 75): Triggered by all USB events
// (Correct transfer, USB reset, etc.). The firmware has to check the
// interrupt source before serving the interrupt.
void USB_LP_CAN_RX0_IRQHandler(void)
void USB_LP_IRQHandler(void)
{
tud_int_handler(0);
}
// USB wakeup interrupt (Channel 42): Triggered by the wakeup event from the USB
// USB wakeup interrupt (Channel 76): Triggered by the wakeup event from the USB
// Suspend mode.
void USBWakeUp_IRQHandler(void)
void USBWakeUp_RMP_IRQHandler(void)
{
tud_int_handler(0);
}
@ -127,6 +129,10 @@ void board_init(void)
SysTick_Config(SystemCoreClock / 1000);
#endif
// Remap the USB interrupts
__HAL_RCC_SYSCFG_CLK_ENABLE();
__HAL_REMAPINTERRUPT_USB_ENABLE();
// LED
__HAL_RCC_GPIOE_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct;