Hello,
num_points is a 32-bit integer, so the value can be quite large. Size the buffer to hold one second of data, usually, this is big enough. Buffers need to be at least a multiple of the USB packet size * the number of channels. A buffer is allocated using win_buf_alloc. The USB-1808X will use win_buf_alloc32. The USB-1608GX-2AO packet is 256, the USB-1808X is 128. Take a look at the attached Python script.
Best regards,
John
a_in_scan_USB_1608G.txt
