[uracoli-devel] Added Zigbit 2400 A2 boards to the tree

[Joerg Wunsch]

I just committed changes to the tree that add support for the "plain"
Zigbit modules:

Add the {Meshnetics,Atmel} ZigBit A2 boards to the tree, as three
different configurations:

. zgbt1281a2uart0: no LEDs, no KEYs, using UART0 for HIF (which is
  also uses as ISP pins)

. zgbt1281a2uart1: no LEDs, no KEYs, using UART1 for HIF

. zgbt1281a2nouart: no LEDs, no KEYs, no HIF; just the plain radio
  board (as a base for own applications)

Unlike wdba1281, which is a Zigbit on top of a Meshbean development
board, which adds quite a bit of peripherals to the configuration,
this is just meant to support the Zigbit module alone, with the
possible addition of a UART HIF.

While using UART1 seems to be the more logical choice at first (it's
got all the pins labelled "UARTxxx" on the module, albeit µracoli
doesn't support hardware flow-control anyway), the alternative use of
UART0 offers one cool feature: UART0's RxD and TxD pins have to be
routed to an ISP connector if ISP is desired, so they can be accessed
there.  Then, the following Dresden Elektronik RS232 adapter can be
plugged into the ISP connector as a levelshifter:

http://www.dresden-elektronik.de/shop/prod106.html

It's pinout matches exactly the ATmega1281 UART0 pinout.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)