SPI communication with NI USB-8451 with Analog Devices HCM6300

[kagaoanjc]

Hi Everyone,

I just got assigned on a project of ours and kinda reviewing the test system before proceeding and reviewed the SPI protocols of AD's HCM6300

I saw that a write operation on the said chip was required to be 18-bits long, 8451 however has a transfer limit of 8-bits at a time.

Would you think I have issues trying to divide the data in order to get around the 8-bit limitation?

[crossrulz]

It looks like the 8451 is limited to only 8 bit transfer, but the 8452 can be set from 4 to 64 bit transfer.

You could try writing 24 bits (array of 3 bytes) and see if that works.