fix ccat startup stall. In case the dma memory was allocated above 4 GB limit, CCAT is unable to access it.
-> limit the dma_mask to 32-bit to omit this situation
$Id$
vim700: spelllang=en spell
Virtual TTY interface driver for EtherCAT slave supporting serial comm
Quick installation guide:
./configure --with-linux-dir=/your/linux/directory --enable-tty
make all modules
make modules_install install
rcethercat start
insmod tty/ec_tty.ko
insmod examples/tty/ec_tty_example.ko
The default settings for the serial line are 9600 8 N 1.
The tty example operates a Beckhoff EL6002 at ring position 1. For a short
test, connect port X1 with a serial port via null modem cable. If a minicom is
started on that port and the below command is entered, the output should be
visible in minicom:
echo "Hello World" > /dev/ttyEC0
Have a lot of fun!