![]() The programming output of the USBasp, which you connect to the target's ICSP header using the supplied cable. However, if the target is powered independently (such as through a DC jack or USB connection) you should remove this jumper. With this jumper in place the USBasp will supply power to the target via the ICSP header. This is to allow you to update the firmware on the USBasp itself using another programmer. If you short out this jumper, the USBasp goes into a special mode that changes it from being a programmer to being a target. Place the switch in the appropriate position for the board you will be programming. Most Arduino-compatible boards operate at 5V. The USBasp supports target boards running at either 5V or 3.3V. Connect to your computer using the cable supplied. For specific uses you may need to change some of these settings. The board you will be programming is referred to as the "target".įor typical usage you can leave the USBasp configured exactly as it comes in the packet. ![]() USBasp is an ICSP (In Circuit Serial Programming) adapter that allows you to install new bootloaders and firmware on common AVR microcontrollers, such as those used in Arduino-compatible boards.
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