Hi,
I work with a PXI system including a FPGA 7841 and a 4140 Source Meter Unit. The SMU is used to supply a sensor (DC voltage 3.3V) and I implemented an i2c protocol on the FPGA board to communicate with the sensor. Right now I need to trigger the output of the SMU with the FPGA card for a specific application. So I want to send a hardware based trigger signal with the FPGA 7841 and want to wait for e.g. a rising edge with the SMU before turning the supply voltage on. I tried to implement this by setting the '/PXI1Slot2/PXI_Trig0' on the FPGA board as output and then set the output from low to high. This rising edge I wanted to detect with a DCPOWER VI before starting the output voltage. I couldn’t find a matching example and wanted to ask, if you have any suggestion how I could implement this in a stable way. For the SMU 4140 I use a single point source mode and dc voltage as output function.
Best regards,
Moritz