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usbcan_gpio: both USB interfaces works; start adding GPIO functions

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This commit is contained in:
Edward Emelianov
2026-03-07 14:37:42 +03:00
parent 760bec420b
commit fb8b93b0fe
9 changed files with 55 additions and 23 deletions
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12
F0:F030,F042,F072/usbcan_gpio/usb_lib.c
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@@ -301,10 +301,14 @@ int EP_Init(uint8_t number, uint8_t type, uint16_t txsz, uint16_t rxsz, void (*f
}
// refresh EP after interface reconnected
void EP_reset(uint8_t number){
if(number >= STM32ENDPOINTS) return;
USB->EPnR[number] ^= USB_EPnR_STAT_RX | USB_EPnR_STAT_TX;
USB_BTABLE->EP[number].USB_COUNT_TX = 0;
void EP_reset(uint8_t epno){
if(epno >= STM32ENDPOINTS) return;
// keep DTOGs (don't write 1 to them), clear CTR (write 0 to them)
// and set STAT to VALID (write 1 where was 0)
uint16_t epstatus = KEEP_DTOG(USB->EPnR[epno]);
USB->EPnR[epno] = (epstatus & ~(USB_EPnR_CTR_TX|USB_EPnR_CTR_RX)) ^
(USB_EPnR_STAT_RX | USB_EPnR_STAT_TX);
USB_BTABLE->EP[epno].USB_COUNT_TX = 0;
}
// standard IRQ handler