I'm currently working with the ATtiny817-XMini dev board and I'm planning on ordering a PCB soon with the ATtiny817. The plan was to order today, but we realized a key issue- we're not sure how to program the chips.
The more common ATtinys (particularly the 85) have plenty of documentation and resources online, with various programmer boards and even tutorials on how to use an Arduino Uno to program the ATtinys. However, for the 817 (and the corresponding series), there seems to be extremely little, from what pins to connect to AVR programmers that are compatible with it.
I'm sorry if I'm overlooking something important, but after triple checking and discussing the matter with a few different individuals, I'm still at a lost on how to program the ATtiny's that will go onto our PCB. The two dev/eval boards use the Atmel Mini Embedded Debugger (as well as an example application from Atmel), but otherwise, I'm at a complete loss.
Thank you for any and all help.