USB-to-Serial Adapter Mode:
The red and green programming status LEDs near the center of the board will give you feedback when the Orangutan USB programmer is being used in programming mode. The green LED will flash every time the programmer receives a valid AVR ISP command packet from the personal computer to which it is connected. The red LED will flash every time the programmer sends information over the 6-pin ISP cable to the device being programmed. These LEDs do not do anything when the Orangutan USB programmer is in USB-to-serial mode.
If you have programmer version PGM02B, you will have additional LED feedback. Every time your programmer powers up (i.e. when you connect it to your computer), the red and green status LEDs will both light for five seconds. During this period, the programmer is receptive to firmware updates; you should avoid trying to program until the initial five seconds have elapsed and the two status LEDs have turned off. Additionally, if your programmer is not connected to a target device or if your target device is not powered, the programmer’s red LED will flash once per second to indicate that it will not let you program.
Connecting to Your 3pi Robot:
The Orangutan USB programmer connects to your 3pi robot via the included 6-pin ISP cable, which plugs into the 3pi’s keyed ISP port located just behind the right wheel as shown above.
Connecting to Your Orangutan:
The Orangutan USB programmer connects to your Orangutan or Baby Orangutan via the included 6-pin ISP cable. The cable must be oriented so that the programmer’s ISP header pin 1 connects to your (Baby) Orangutan’s ISP header pin 1. Unlike the Orangutan, the Baby Orangutan does not come with a shrouded header to enforce correct cable orientation; the red wire and arrow mark on the cable’s ISP connector should be lined up with the arrow to pin 1 on the Baby Orangutan PCB. You will only be able to achieve this alignment by connecting to the top side of the Baby Orangutan PCB, so be very careful not to solder your 6-pin ISP header onto the wrong side of your Baby Orangutan!
Note: The programmer does not deliver power to the device it is programming, so . If you are using programmer version PGM02A, attempting to program an unpowered device will have unpredictable results; this might randomly change the fuse settings, which can in turn permanently disable your Orangutan (see Fuses in Section 5.b). If your programmer version is PGM02B, the programmer will not let you program an unpowered device (you will see the red status LED blink once per second if your target device is not powered). You must still take great care to ensure that your target device does not lose power during programming.
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