Stefan Schmidt wrote: > - RF chip connecting via SPI to a microcontroller > - This controller bridges between SPI on the RF side and USB on the > host side
Yup. > - The linux host drives the RF over USB. Are you using some "SPI > packaged in USB" for this or the serial protocol defined by the > linux-zigbee project? The protocol is slightly above SPI: its primitives are currently the six transfer types (register read/write, buffer read/write, and SRAM read/write) supported by the AT86RF230/231. The control transfers are listed here: http://projects.qi-hardware.com/index.php/p/ben-wpan/source/tree/master/atusb/fw/include/atusb/ep0.h (Needs a monospaced font to look right.) This protocol will still evolve a bit: interrupts are currently only polled, we may need some additional command for production testing, and it probably also makes sense to combine some sequences of operations, maybe even have automatic reception of frames to a temporary buffer in the MCU. > (- Controller flashing is done via DFU?) Aye, with dfu-util :) As soon as I solve the USB reset issues. > Did I get all the pieces correctly sorted out? Yup, sounds good. - Werner _______________________________________________ Qi Hardware Discussion List Mail to list (members only): [email protected] Subscribe or Unsubscribe: http://lists.en.qi-hardware.com/mailman/listinfo/discussion
