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This function pull 64 bytes from EP1IN EP1OUTBUF FIFO; in this FIFO , the FX2_API_Commands (MicroBlaze Commands and SPI Flash Commnads) from USB connection with are stored possible TE API Commands (FW APIs) sent by host computer's SW through USB connection.

EP1OUTBUF[0] and EP1OUTBUF[1:63] are written by host computer's software C++ TE_USB_FX2_SendCommand(...,command,...)  or C# TE_USB_FX2_SendCommand(...,command,...) or libusb(x) C libusb_bulk_transfer(usbDeviceHandle, LIBUSB_ENDPOINT_OUT | 1, command, x, &actual_length, 1000) used with command[0] = USB FX2 API Command.

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