How to write 4 bit (0000~1111) digital data of 4 interfaces to a 4*4 matrix of pixel circuit with resistors (like active matrix) row by row with my DAQ?

Dear ALL,

Hi there!

I am new with Labview 2016. I am using DAQ PCI6221. I hope to write 4 bit (0000~1111) digital data with 4 lines to a 4*4 matrix of pixel circuit with resistors (like active matrix) row by row. Each line should send serial data and then transfer to analog voltage.

Questions:

1. Could you please show me how to achieve the functions? Is there any snippet or example?

2. How to control the timing?

Thanks very much!

Best,

Jason