D51 Module, Round Two

For mixed volume production of various network endpoints / routers, this board is the collected set of boilerplate utilities need to boot and use the ATSAMD51:

• JTAG Programming Header (SWD Pins)
• Reset Switch
• 5v in -> local 3v3 reg
• Bypass Caps
• 32kHz Xtal
• 16MHz Xtal
• LEDS: Power, Clock, Error
• USB Connector
• RS485 PHY w/ DE, RE, and Logic-Selectable Termination Resistor
• DIP Switch for local configuration, i.e. bus-drop-address
• SAMD51

Most of the other D51 pins are broken out on 0.05" spaced castellated pins. The module is about as tiny as I could flex it, 20.3 x 28.6mm. The notion is to make lots of these, and solder them on to more ad-hoc driver boards.

Part Numbers