I2C with PCI 6537B

[Bhuvi_1]

I have been trying to figure out if there is a way to use my PCI 6537B as an I2C master. I tried searching online but I could not find an I2C controller in the PCI or relevent ways in which I could use the on board peripherals to mimic an I2C. So is it possible to have my 6537B as an I2C master ?? I plan to use Labview to control the device. Any suggestion or feedback is welcome.

[crossrulz · Accepted solution]

Due to the bidirectionality of I2C, no.  Some alternatives:

1. There is a library floating around to do I2C using an R series FPGA board and LabVIEW FPGA.

2. Use an USB-8451 or USB-8452.  These are USB devices specifically for testing I2C and SPI interfaces.  The API is pretty simple and they just work well.

3. Make your own circuit around a chip like the SC18IM700.  This particular chip has a TTL UART interface (similar to your RS-232 port, but at TTL levels) to your I2C circuit.  Again, the commands are pretty simple once you know how to set up your serial port (and a RS-232 to TTL adapter circuit/part).

4. Use a NI VirtualBench.  Two of the digital lines can be used as an I2C master.

I have been successful with options 2, 3, and 4.