I have an FTDI MPSSE cable and a TE Pressure Sensor FTDI provide LabVIEW drivers for the FTDI but I have been unable to detect a response. My setup is as shown below. I am using a 3.3 V FTDI with the 5V TE pressure sensor. FTDI have stated this should be fine. According to the TE specification: The I2C address consists of a 7-digit binary value. The factory setting for the I2C slave address is 0x28, 0x36 or 0x46 depending on the interface type selected from the ordering information. The address is always followed by a write bit (0) or read bit (1).The default hexadecimal I2C header for read access to the sensor is therefore 0x51, 0x6D, 0x8D respectively, based on the ordering information. I could not get the FTDI driver running so tried Benoit's driver: https://lavag.org/files/file/282-mpssedll-labview-driver/ However, there is still no response from the MS4525DO. When sending 0x51 (1010001) with the stop bit enabled, the following appears on the scope. But no response. When sending 0x28, the following appears on the scope but again no reply: zooming in... I don't understand the leading pulse when sending 0x28. Anyway, my problem is that no matter what I do, I get ther error libMPSSE.lvlib:Error Converter (ErrCode or Status).vi<ERR>FT_DEVICE_NOT_FOUND<b>Complete call chain:</b>libMPSSE.lvlib:Error Converter (ErrCode or Status).vilibMPSSE.lvlib:I2C Device Write.vitest.vi Does anyone know what I am doing wrong?

LabVIEW

Basically, you are getting the info from your adapter.

Next step, is to understand how I2C is working for your particular device that you are connecting to the I2C network.

Open the datasheet of your device and read.

Benoit

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