Hi, I am tying to bild a bodeplotter for frequencies 0.01- 5 Hz. I generate a variable frequency sinewave, which I feed directly from output to input for just test purposes.
Problems:
1. I don't achive synchronization between input and output and I don't understand how to configure buffersizes and samplingfrequencies
with respect to input and output. I would like to automate these settings so that the user don't have to bother.
2. The example I started from recommends 2 DMA channels. I don't understand how to find out if I have it, and how to set it.
I often get buffer underflow, which means that my computer cannot keep up with my 6024E PCMCIA card, when I try to generate higher frequencies that
15Hz.
Greatful for some help,
Kindest regards,
Lasse
