Hi,
I am very new to microprocessors, but I want to construct a device, that needs to have some small display and some buttons. Most times it is connected to a PC (USB preferably), but it needs also some limited logic on its own, for the times, it is not connected.
After some web search, I came up with the above mentioned combination of microprocessor and development board. According to the Atmel list of supported devices the AT90USB646 is supported by the Dragon. What I am unsure is:
a) according to the product specification page at the shop, the AT90USB646 is a SMD device. Can I really put that onto the Dragon for programming it? Or do I first have it wired on another board (breadboards, you're calling them, right?) and wired it with dozens of connections to create a ISP or JTAG port, before I can program it?
b) How hard is it, to program the USB interface to act like a USB-Serial device (so, that it looks like a COM port on the PC)?
c) do I need anything else to get started with this chip?
thanks a lot for you help. This whole stuff is quite hard, if you're just starting.
I am very new to microprocessors, but I want to construct a device, that needs to have some small display and some buttons. Most times it is connected to a PC (USB preferably), but it needs also some limited logic on its own, for the times, it is not connected.
After some web search, I came up with the above mentioned combination of microprocessor and development board. According to the Atmel list of supported devices the AT90USB646 is supported by the Dragon. What I am unsure is:
a) according to the product specification page at the shop, the AT90USB646 is a SMD device. Can I really put that onto the Dragon for programming it? Or do I first have it wired on another board (breadboards, you're calling them, right?) and wired it with dozens of connections to create a ISP or JTAG port, before I can program it?
b) How hard is it, to program the USB interface to act like a USB-Serial device (so, that it looks like a COM port on the PC)?
c) do I need anything else to get started with this chip?
thanks a lot for you help. This whole stuff is quite hard, if you're just starting.