![]() Under the bath sockets there is a jumper to choose the tension used to power the target system. Changing the program is really simple, because it is done by a fast USB bootloader and the free tool from Atmel – FLIP. Vias under at90usb162 system move out the remaining pins to the bottom of the plate, where sizeable pads are – so the system can be used as a testing plate for different programs using USB hardware. The vias needed for the programmer, can be made of a wire. The plate looks complicated and crowded, but it can be made in domestic conditions. ![]() They allow to program all available Atmega, Attiny and Xmega systems. The programmer has three bath connectors 6pin to handle the three protocols: ISP, PDI and TPI. The change requires a small code modification. Instead of original tension translator GTL2003, MAX3002 was used, because it is easier available. The system is built on base of another project (LINK), the programmer modeled on USBTiny-MKII **broken link removed** and USBTiny MKII PL (LINK). The main element of the system is AT90USB162 controller with a hardware USB interface, so that the programming speed is very high. A little plate is equipped with double-direction tension translator for all interfaces, cooperating from 1,2V, a jumper that allows to power the target system 5V or 3,3V (LDO 3,3V stabilizer) and signaling LEDs. It directly cooperates with AvrStudio or AvrDude. It has three programming interfaces: ISP, PDI and TPI. USBTiny-MKII SLIM programmer supports all the microcontrollers: Attiny, Atmega and Xmega.
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