+ def authenticate_connection(self):
+ raise Exception("Not implemented")
+
+ def send_data(self, packed_data):
+ if (self.tx_ep == None):
+ return False
+ try:
+ self.tx_ep.write(packed_data, self.timeout_ms)
+ except usb.core.USBError as e:
+ print(f"Timeout: error", e)
+ return False
+ return True
+
+ # packets are length 7, except for a read package
+ def recv_data(self, exp_len):
+ if (exp_len > MAX_TRANSFER_SIZE):
+ raise ValueError(f"length package {exp_len} over max transfer size")
+ if (self.rx_ep == None):
+ return False
+ try:
+ msg = self.rx_ep.read(exp_len, self.timeout_ms)
+ except usb.core.USBError as e:
+ print(f"Timeout: error", e)
+ return False
+ return msg
+
+
+#communicator = RAConnect(vendor_id=0x1a86, product_id=0x7523)