STM32F1xx/ Reference manual RM0008: USB_HP_CAN_TX and USB_LP_CAN_RX0 question

[genni]

I'm reading the RM0008 Reference manual.....
I can't find a description of the registers and events associated with the entry point of Vector table for USB_HP_CAN_TX and USB_LP_CAN_RX0....
What does it mean USB High Priority and USB Low Priority ?
How do these relate to the events?
I'm studying Table 63. Vector table for other STM32F10xxx devices...

[mƎALLEm]

Hello,

---

@genni wrote:

I'm reading the RM0008 Reference manual.....
What does it mean USB High Priority and USB Low Priority ?

---

I'm not expert of USB subjects but from the RM0008:

– USB low-priority interrupt (Channel 20): Triggered by all USB events (Correct
transfer, USB reset, etc.). The firmware has to check the interrupt source before
serving the interrupt.
– USB high-priority interrupt (Channel 19): Triggered only by a correct transfer event
for isochronous and double-buffer bulk transfer to reach the highest possible
transfer rate.