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RE: Sync serial interface as SPI
need to enable the synchronous serial port in the kernel configuration.
Something like this:
Drivers for ETRAX 100LX...
Synchronous serial port. If you enable synchronous serial port 0 you must
disable serial port 1
you enable synchronous serial port 1 you must disable serial port
kernel && make images
There are drawbacks with the hardware implementation of the synchronous serial
of device are you connecting? If the device can't handle a continuous clock from
us you will
able to use the hardware synchronous serial port support. DS