The only comment that I have is that the block does not have to be
contiguous. this used to be a requirement, but not with PCI cards. We have
used very large buffers for applications before but not with the 4452. I am
not sure if this card acts any different.
Stu
Bryan F wrote in message
news:101-5065000000050000007B1A0000-982303670000@quiq.com...
> In principle, you can make this buffer as large as you would like.
> However, you must have a contiguous block of memory of at least this
> size in the system. Each sample with the DSA board consumes 2 bytes
> of memory. I have found that most applications do not demand a buffer
> larger than 1 MB. A buffer of this size does not push the memory
> constraints of most systems.