[Is USB-DIO24 slower than PCI-DIO24?]

Fausto,

Thank you for the link. 

In the following link Attila said, The DIOs should also handle 20MHz SPI

 

[Is USB-DIO24 slower than PCI-DIO24?]

Also, it good to be mentioned, on the PCI version, I started with UL in C and did a Python wrapper, so I am actually using the C version of the UL.

[Is USB-DIO24 slower than PCI-DIO24?]

Hello Fausto,

I am using UL python for windows.

Also, I attached the signal that captured from SPI bus by Logic Analyzer.

 

Thank you,

[Is USB-DIO24 slower than PCI-DIO24?]

Hello,

I run a python program that generate the SPI signals on the digital input/output ports on PCI-DIO24 and USB-DIO24. The problem is on the PCI-DIO24 the SPI clock frequency is 20KHZ but in the USB-DIO24 it is about 20 HZ while the Python codes on both devices are identical.

Please guide me in this matter.