STK1000/SPI header

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The SPI header allows you to easily connect other development boards to STK1000. The pin out is selected to allow STK500 from Atmel to be connected with the ISP cable shipped with STK500.

The SPI header can also be used to connect other development boards to STK1000.

The SPI header located just below the GPIO header. Image:STK1000SpiHeader.jpg

Pin out

Note that the optional 3.3V pin is described below.

Image:STK1000SpiHeaderPinOut.gif

Signals

Pin 2 is marked "optional 3.3V". 3.3V can be connected to this pin by inserting a 0 OHM resistor in the R106 location. The R106 footprint is located under the SPI header on the bottom layer of the PCB. This resistor is not populated by default. 3.3V is not applied to pin 2 to allow connection of STK500 and STK1000 both obtaining power through its own power supplies. 3.3V must be supplied to pin 2 if STK1000 is to deliver power to the development board it connects to.

SPI chip select signals are available on the general expansion header as well as the PCI style expansion connector.

Interfaces

Refer the help files of the daughter board to find out what interfaces are used and which peripheral on the processor are connected to the interface.

Static version created: 2007-03-07
Copyright (c) 2007 Atmel Corporation