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T4 USB read transfer status directly

teensy4-core
PaulStoffregen 5 年之前
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共有 1 個檔案被更改,包括 4 行新增0 行删除
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      teensy4/usb.c

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teensy4/usb.c 查看文件



uint32_t usb_transfer_status(const transfer_t *transfer) uint32_t usb_transfer_status(const transfer_t *transfer)
{ {
#if 0
uint32_t status, cmd; uint32_t status, cmd;
//int count=0; //int count=0;
cmd = USB1_USBCMD; cmd = USB1_USBCMD;
//if (status & 0x80) break; // for still active, only 1 reading needed //if (status & 0x80) break; // for still active, only 1 reading needed
//if (++count > 1) break; // for completed, check 10 times //if (++count > 1) break; // for completed, check 10 times
} }
#else
return transfer->status;
#endif
} }





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