[beagleboard] Dual Serial

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1

How would I go about connecting to the Beagleboard via the UART2 pins on the expansion header (pinmuxed correctly)? I have the appropriate level converters, and I’d like to have a serial connection on both the RS232 header on the BB and with the UART2 RX and TX pins, but when ever I attempt this (turning off RTS/CTS) the serial connection is simply dead.

Any advice is greatly appreciated.

Thanks.
– @

2

Have a look at the zippy/zippy2/trainer section in the u-boot sources, those expansionboard use UART2.

regards,

Koen

3

the schematic for the zippy2 is posted:

http://www.elinux.org/BeagleBoard_Zippy2

have a look at the uart section.

thanks
Dave