Comm Operator v4.9 supports Quick Send – I2C Panel. It allows to you communicate with I2C devices through FTDI FT232H based USB to I2C bridge.
Here’s how to test I2C device MCP23008 with Comm Operator I2C Panel.
Download Comm Operator v4.9 beta version to try.
Step 1: Download and install Comm Operator.
Step 2: Connect I2C device MCP23008 with your computer through FTDI FT232H based USB to I2C bridge.
Step 3: Run Comm Operator, and Open Connection –> I2C Bridge to connect I2C device MCP23008.
Step 4: Click menu View –> I2C Panel to show Quick Send – I2C Panel.
Step 5: Click Scan button to search I2C device MCP23008 address.
If you know the device address, you can just select it from the drop-down list.
Step 6: You can communicate with I2C device MCP23008 now.
According to I2C protocol and I2C device MCP23008 document, check Write and Read, and input data ”00” (it’s Register Address of MCP23008), then click Send button to read the value of IODIR register.
Step 7: Click Edit button to show I2C Data Editor. You can edit address and data here in binary.