I am using a PCI 6259 board to generate a periodic analog waveform based on an external clock of which the frequency is ~15 MHz.
I set the external clock rate to 15 MHz in the front panel. When I run my program, the 'actual sample clock rate' indicates 0 Hz and the error message comes out; frequency => sampling rate/2. Then the next message is that the maximum clock frequency is 10 MHz. I attached the diagram I wrote.
How can I solve this problem? Please help me!
