If you use Windows XP, you will need to have either Service Pack 3 or Hotfix KB918365 installed before installing the drivers for the Orangutan SVP. Some users who installed the hotfix have reported problems using the programmer which were solved by upgrading to Service Pack 3, so we recommend Service Pack 3 over the hotfix.
Before you connect your Pololu Orangutan SVP robot controller to a computer running Microsoft Windows, you must install its drivers:
Windows 8, Windows 7, and Windows Vista users: After the installation is complete, your computer should automatically install the necessary drivers when you connect an Orangutan SVP, in which case no further action from you is required.
Windows XP users: After the installation is complete, follow steps 3-7 for each new Orangutan SVP you connect to your computer.
If you use Windows XP and experience problems installing the drivers, the cause of your problems might be a bug in older versions of Microsoft’s usb-to-serial driver usbser.sys. Versions of this driver prior to version 5.1.2600.2930 will not work with the Orangutan SVP. You can check what version of this driver you have by looking in the “Details” tab of the “Properties” window for C:\Windows\System32\drivers\usbser.sys. To get the fixed version of the driver, you will need to either install Service Pack 3 or Hotfix KB918365. Some users who installed the hotfix have reported problems using the programmer which were solved by upgrading to Service Pack 3, so we recommend Service Pack 3 over the hotfix.
After installing the drivers, if you go to your computer’s Device Manager and expand the “Ports (COM & LPT)” list, you should see three COM ports: Pololu Orangutan SVP Programmer (Section 5.c), Pololu Orangutan SVP USB Communication Port (Section 8), and the Pololu Orangutan SVP TTL Serial Port (Section 9). In parentheses after these names, you will see the name of the port (e.g. “COM5” or “COM6”).
Some software will not allow connection to higher COM port numbers. In particular, AVR Studio and Atmel Studio can only connect to COM1 through COM9. If you need to change the COM port number assigned to one of the COM ports, you can do so using the Device Manager. Bring up the properties dialog for the COM port and click the “Advanced…” button in the “Port Settings” tab. From this dialog you can change the COM port assigned to your device.