{"id":3736,"date":"2015-09-11T11:04:00","date_gmt":"2015-09-11T16:04:00","guid":{"rendered":"http:\/\/www.serialporttool.com\/sptblog\/?p=3736"},"modified":"2019-07-22T20:33:23","modified_gmt":"2019-07-23T01:33:23","slug":"test-usb-i2c-cmps11-with-comm-operator","status":"publish","type":"post","link":"https:\/\/www.serialporttool.com\/GK\/2015\/09\/test-usb-i2c-cmps11-with-comm-operator\/","title":{"rendered":"Test USB-I2C & CMPS11 with Comm Operator"},"content":{"rendered":"

Comm Operator<\/a> is professional communication debug software for Serial Port, TCP\/IP, UDP, I2C, HTTP and FTDI.<\/p>\n

UBS-I2C<\/a> is I2C communications module of Robot Electronics<\/a>  to provide a complete  interface  between PC and I2C bus.<\/p>\n

CMPS11<\/a> is tilt compensated compass module of Robot Electronics<\/a>.<\/p>\n\n\n\n\n
\"Comm<\/a><\/td>\n\"USB-I2C<\/a><\/td>\n\"CMPS11<\/a><\/td>\n<\/tr>\n
\n

Comm Operator<\/a> <\/p>\n<\/td>\n

\n

              UBS-I2C<\/a> Module<\/p>\n<\/td>\n

CMPS11<\/a> Module<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Steps for how to test UBS-I2C<\/a> and CMPS11<\/a> with Comm Operator.<\/strong><\/p>\n

Step 1: Download and install Comm Operator<\/a>.<\/p>\n

Step 2: Connect USB-I2C with CMPS11 according to pin diagram, and then connect USB-I2C with your computer.(You might need to install driver for USB-I2C.)<\/p>\n\n\n\n\n
\"USB-I2C<\/a><\/td>\n \"CMPS11<\/a><\/td>\n<\/tr>\n
\n

USB-I2C<\/p>\n<\/td>\n

\n

CMPS11 Module<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"Connect<\/a><\/p>\n

Step 3: Run Comm Operator, click the icon or menu Open Connection \u2013> Serial Port<\/strong> panel to select COM Port and Baud Rate for USB-I2C and click Open<\/strong> button.<\/p>\n

\"Comm<\/a><\/p>\n

The connection status will be shown on the status bar of Comm Operator.<\/p>\n

\"Comm<\/a><\/p>\n

Step 4: Click menu View \u2013> Standard <\/strong>to show or switch to Quick Send \u2013 Standard<\/strong> panel.<\/strong><\/p>\n

\"Comm<\/a><\/p>\n

Step 5: Input data on Quick Send \u2013 Standard<\/strong> panel. Click Send<\/strong> button to send data.<\/p>\n

According to USB-I2C document, the data format for Write\/Read to I2C device with a 1-byte internal address register is shown as below.<\/p>\n

    \n
  • [<\/font>USB-I2C Command] [I2C Address+R\/W] [Register Address] [Number of Data Bytes] [Data<\/font><\/strong>(when writing)<\/font>]<\/font><\/li>\n<\/ul>\n

    Test Example :  Read the version of CMPS11<\/em><\/p>\n

    In Comm Operator Quick Send \u2013Standard<\/strong> panel, input Hex data \u201d55 C1 00 01<\/font><\/strong>\u201d in HEX format, then click Send<\/strong> button to read the version of CMPS11.<\/p>\n

    \"Test<\/a><\/p>\n

      \n
    • 0x55 <\/font>is the USB-I2C command for write\/read 1-byte addressed devices.<\/li>\n
    • 0xC1<\/font> is the CMPS11 device default address 0x60<\/strong><\/font> with 1 Read bit in the lowest bit.<\/li>\n
    • 0x00<\/font> is CMPS11 Register Address for software version.<\/li>\n
    • 0x01<\/font>  is the number of read data byte.<\/li>\n<\/ul>\n

      Follow the rules above, the data to Read CMPS11 bearing is \u201c55 C1 01 01<\/font><\/strong>\u201d for 8-bit, or \u201c55 C1 02 02<\/font><\/strong>\u201d for 16-bit.<\/p>\n

      Tip: Check Add to List<\/strong> when you send data, the data will be added to Send Data List<\/strong> automatically.<\/p>\n

      \"Comm<\/a><\/p>\n