STK1000/Jumper Settings

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STK1000 have jumper settings for configuration of audio output and the UARTs connected to the RS232 connectors.

Image:STK1000JumperUartAndAudio.jpg

Uart jumpers Jumpers are used to select the source of input for RXD and CTS signals of UARTA and UARTC. The reason for this setting is to avoid a contention for driving of these signals. The remaining signals of UARTA is routed to the PCI expansion connector and the the general expansion header.

Image:STK1000JumperUart.jpg

The image shows the RS232/DB9 connectors selected as the input for all UART signals. This is the setup you want if you are using a serial cable to a computer or custom device. If you want to connect your own peripherals on the UART line of the general expansion headers or on the PCI style expansion connector you must change your UART jumper settings.

Audio jumpers Jumpers are used to select output to the audio jack connector. The jumpers are used to select either the internal DAC of the MCU on the daughter board or the External DAC on STK1000. No jumper selection is used for the on-board speaker since this is always connected to the external DAC.

Image:STK1000JumperAudio.jpg

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