NI PCI-6534

hi,
   i want to use NI PCI-6534 for continuous data acquisition at 10 Mhz
for char data,i want to use double-buffer technique, while one half of
the buffer is being dumped to system memory from card, the next half is
being filled by DAQ.
any suggestion and if possible a demo is highly recommended!!!

regards,
Sardar Abid Rafique