The ADIS1648x MEMS IMU family has three different products: ADIS16480, ADIS16485 and ADIS16488. All three of these products provide low-profile, high-peformance IMUs that use a serial peripheral interface for data communications. This interface enables direct connection with a large variety of embedded processor products. This electrical connection typically only requires 5 I/O lines for sychronous data collection, as show in the following figure.
The ADIS16IMU1/PCBZ provides a simple method for connecting an existing processor system to the ADIS16480AMLZ, ADIS16485BMLZ or ADIS16488AMLZ, using 1mm ribbon cables. Click on one of the following link for more information on this breakout boards.
NOTE: ADIS16480AMLZ, ADIS16485BMLZ and ADIS16488AMLZ are sold separately.
NOTE: Order (1) ADIS16480AMLZ and (1) ADIS16IMU1/PCBZ to acquire the same materials that used to come in the ADIS16480/PCBZ, which is no longer available.
NOTE: Order (1) ADIS16485AMLZ and (1) ADIS16IMU1/PCBZ to acquire the same materials that used to come in the ADIS16485/PCBZ, which is no longer available.
NOTE: Order (1) ADIS16488AMLZ and (1) ADIS16IMU1/PCBZ to acquire the same materials that used to come in the ADIS16488/PCBZ, which is no longer available.
For those who would prefer to perform PC-based evaluation of the ADIS1648x products, before developing their own embedded system, the EVAL-ADIS is the appropriate system to use. The remainder of this Wiki site will focus on PC-based evaluation with the EVAL-ADIS system. Here is a list of equipment required for this:
NOTE: Substitute ADIS16480AMLZ or ADIS16485AMLZ for the ADIS16488AMLZ, as needed for specific application requirements.
Windows XP, Vista, 7
.NET Framework 3.5
NOTE: Newer versions of the .NET framework do not currently support the IMU Evaluation software package.
NOTE: The machine screws that come with the EVAL-ADIS can have a moderate impact on local magnetic fields. For those who need the best performance out of the magnetometer solution, consider replacing them with machine screws that are made out of aluminum or other non-ferrous materials.
NOTE: The following steps represent the most convenient means of attachment, but do not support the “best practices” that are listed in this application note:
The EVAL-ADIS includes a bag of M2x0.4mm machine screws, which include 4 pieces that are in lengths of 16mm and 20mm. Using the 16mm version will only allow for 2mm of penetration into the EVAL-ADIS mouting holes, while the 20mm screws will result in the screws sticking out of the bottom side of the EVAL-ADIS, when fully-secured.
NOTE: Do not plug the EVAL-ADIS into the USB cable at this stage of the setup. Wait until the software installation is complete.
Place the ADIS1648x device over the “F” mounting holes and align its connector with J4 on the EVAL-ADIS.
Once the alignment with J4 is correct, gently press the top of the ADIS1648xxMLZ unit down, so that its connector presses into J4. When the connector is fully seated, the ADIS1648xxMLZ will rest on the EVAL-ADIS surface. The following pictures provide a reference of how this setup will look when the ADIS1648xxMLZ has correct alignment with the mating connector on the EVAL-ADIS.
This picture provides an example of the an incorrect connector alignment. Take care to avoid this type of connection error, because it can cause the the ADIS1648xxMLZ to experience harmful conditions. Notice the entire row of gold pins that are outside of the mating connector.
Select the mounting screws. The EVAL-ADIS includes a bag of M2x0.4mm machine screws, which include 4 pieces that are in lengths of 16mm and 20mm. Using the 16mm version will only allow for 2mm of penetration into the EVAL-ADIS mouting holes, while the 20mm screws will result in the screws sticking out of the bottom side of the EVAL-ADIS, when fully-secured.
Use a screwdriver to secure all four screws into the appropriate mouting holes. Note that difficulty in getting the screws to penetrate the pre-tapped holes can be an indicator of connector misalignment.
Set JP1 (EVAL-ADIS) to “+3.3V.”
Install header to connect the two pins on JP2. Even if the application does not require use of the RTC function, this connection is necessary to assure reliable operation in the ADIS1648x's processor function.
Click here to download the latest version of the IMU Evaluation software.
Click here to download the latest drivers for the EVAL-ADIS2.
The IMU Evaluation Software is a Microsoft Windows (.NET) application that works in conjunction with the EVAL-ADIS2, in order to provide users with a PC-Based interface to most ADIS16xxx products. This platform enables observation of basic sensor functions, read/write access to all user-accessible registers, and full-rate data acquisition, which is synchronous with data production of each ADIS16xxx.
Once the IMU Evaluation software loads, you should be presented with a window similar to the image shown below.
The image below has been color-coded to illustrate the different parts of the IMU Evaluation Software. These colored sections will be referred to in the following sections.
The drop-down menus highlighted in orange list additional features and utilities that make up the core functionality of the evaluation software.
- The Devices menu provides a list of supported products. Selecting a product from this list will configure the IMU evaluation software register map. Each device has a unique register map that must be selected to ensure proper sensor operation. The green box shows the active device. In this example, the ADIS16448 is selected.
- The Register Access option calls a sub-menu that lists all user-configurable registers available from the part number selected in the “Devices” drop-down menu. It also provides read/write access to each register.
- The Data Capture option calls a sub-menu designed to enable synchronous data logging from the selected device.
- The Demos option calls a 3-D visualization tool. This feature is only supported for the ADIS16480 and ADIS16448 devices.
- The Tools option calls a sub-menu that displays USB diagnostic information.
- The About option provides more detailed software revision information.
The purple box shows the primary, inertial output registers for the selected device. These values are updated in real-time after pressing the Read button (identified by a red box).
The yellow box shows three waveform recorder windows. Each window allows for plotting the three primary sensor types (gyroscopes, accelerometers, and magnetometers [if supported]). The top subplot displays gyroscope data, the middle plot displays accelerometer data and the bottom plot displays magnetometer data. Each plot color corresponds to the colors displayed in the “Output Registers” window (highlighted in purple).
The Register Access window provides read and write access to all user-accessible registers listed in the selected device's datasheet. The image below shows a screenshot of the window.
The color-coded image below is referenced in the following section.
The purple box sorts each set of registers into a standard category. The available categories are:
- Control/Status - General sensor configuration, alarm, and metadata registers
- Output - Inertial sensor output registers
- Calibration - User offset and misc. calibration registers
The section highlighted by the red box lists all of the registers in the selected category. Click on the register name to select a register for individual read/write access.
The green box identifies the read/write control options for the current register selection.
The Update Registers in Category button (shown in an orange box above) automatically reads all of the registers shown in the selected category (red box) and updates their contents in the GUI.
The section highlighted in yellow identifies provides a means of easily calling subroutines within the connected sensor. Clicking on a button is equivalent to writing a single-bit command to the respective register.
The Save Reg Settings to File programmatically reads and saves the contents of all of the registers in the current category into a *.csv (common-delimited) file. The Load Reg Settings from File button reads a target .csv file and attempts to write the saved values back into the sensor.
The Data Capture window only supports synchronous data acquisition and logging to a file on the host PC. Data samples are only read from the sensor when the data ready pin toggles, indicating that data is valid.
The color-coded image below is referenced in the following section.
The section highlighted in red lists all of the registers that are eligible for data capture. Checking the box next to each register indicates that the specified register values should be recorded once the data stream begins.
The section highlighted in green allows for customizing the file name and location of the resultant .csv files.
The section highlighted in yellow identifies the data stream configuration options.
- Record Length - The total number of samples to be captured. A sample is defined as a single “data valid” period as signaled by the data ready pin on the sensor
- Sample Rate - The instantaneous data ready rate as measured by the evaluation board
- Capture Time - The estimated data capture time in DD:HH:MM:SS format calculated based upon the instantaneous sample rate
- Add File Header - Selects whether a header displaying the contents of each column should be appended to the beginning of the .csv file
- Use Scaled Data - Signals to the software to convert the 16-bit values read from the sensor into a sign-adjusted (two's complement) scaled number. For example, when this option is enabled, be in units of degrees/second
Click here to download the latest version of the IMU Evaluation software.
Click here to download the latest drivers for the EVAL-ADIS2.
The IMU Evaluation Software is a Microsoft Windows (.NET) application that works in conjunction with the EVAL-ADIS2, in order to provide users with a PC-Based interface to most ADIS16xxx products. This platform enables observation of basic sensor functions, read/write access to all user-accessible registers, and full-rate data acquisition, which is synchronous with data production of each ADIS16xxx.
Once the IMU Evaluation software loads, you should be presented with a window similar to the image shown below.
The image below has been color-coded to illustrate the different parts of the IMU Evaluation Software. These colored sections will be referred to in the following sections.
The drop-down menus highlighted in orange list additional features and utilities that make up the core functionality of the evaluation software.
- The Devices menu provides a list of supported products. Selecting a product from this list will configure the IMU evaluation software register map. Each device has a unique register map that must be selected to ensure proper sensor operation. The green box shows the active device. In this example, the ADIS16448 is selected.
- The Register Access option calls a sub-menu that lists all user-configurable registers available from the part number selected in the “Devices” drop-down menu. It also provides read/write access to each register.
- The Data Capture option calls a sub-menu designed to enable synchronous data logging from the selected device.
- The Demos option calls a 3-D visualization tool. This feature is only supported for the ADIS16480 and ADIS16448 devices.
- The Tools option calls a sub-menu that displays USB diagnostic information.
- The About option provides more detailed software revision information.
The purple box shows the primary, inertial output registers for the selected device. These values are updated in real-time after pressing the Read button (identified by a red box).
The yellow box shows three waveform recorder windows. Each window allows for plotting the three primary sensor types (gyroscopes, accelerometers, and magnetometers [if supported]). The top subplot displays gyroscope data, the middle plot displays accelerometer data and the bottom plot displays magnetometer data. Each plot color corresponds to the colors displayed in the “Output Registers” window (highlighted in purple).
The Register Access window provides read and write access to all user-accessible registers listed in the selected device's datasheet. The image below shows a screenshot of the window.
The color-coded image below is referenced in the following section.
The purple box sorts each set of registers into a standard category. The available categories are:
- Control/Status - General sensor configuration, alarm, and metadata registers
- Output - Inertial sensor output registers
- Calibration - User offset and misc. calibration registers
The section highlighted by the red box lists all of the registers in the selected category. Click on the register name to select a register for individual read/write access.
The green box identifies the read/write control options for the current register selection.
The Update Registers in Category button (shown in an orange box above) automatically reads all of the registers shown in the selected category (red box) and updates their contents in the GUI.
The section highlighted in yellow identifies provides a means of easily calling subroutines within the connected sensor. Clicking on a button is equivalent to writing a single-bit command to the respective register.
The Save Reg Settings to File programmatically reads and saves the contents of all of the registers in the current category into a *.csv (common-delimited) file. The Load Reg Settings from File button reads a target .csv file and attempts to write the saved values back into the sensor.
The Data Capture window only supports synchronous data acquisition and logging to a file on the host PC. Data samples are only read from the sensor when the data ready pin toggles, indicating that data is valid.
The color-coded image below is referenced in the following section.
The section highlighted in red lists all of the registers that are eligible for data capture. Checking the box next to each register indicates that the specified register values should be recorded once the data stream begins.
The section highlighted in green allows for customizing the file name and location of the resultant .csv files.
The section highlighted in yellow identifies the data stream configuration options.
- Record Length - The total number of samples to be captured. A sample is defined as a single “data valid” period as signaled by the data ready pin on the sensor
- Sample Rate - The instantaneous data ready rate as measured by the evaluation board
- Capture Time - The estimated data capture time in DD:HH:MM:SS format calculated based upon the instantaneous sample rate
- Add File Header - Selects whether a header displaying the contents of each column should be appended to the beginning of the .csv file
- Use Scaled Data - Signals to the software to convert the 16-bit values read from the sensor into a sign-adjusted (two's complement) scaled number. For example, when this option is enabled, be in units of degrees/second
Click here to download the latest version of the IMU Evaluation software.
Click here to download the latest drivers for the EVAL-ADIS2.
The IMU Evaluation Software is a Microsoft Windows (.NET) application that works in conjunction with the EVAL-ADIS2, in order to provide users with a PC-Based interface to most ADIS16xxx products. This platform enables observation of basic sensor functions, read/write access to all user-accessible registers, and full-rate data acquisition, which is synchronous with data production of each ADIS16xxx.
Once the IMU Evaluation software loads, you should be presented with a window similar to the image shown below.
The image below has been color-coded to illustrate the different parts of the IMU Evaluation Software. These colored sections will be referred to in the following sections.
The drop-down menus highlighted in orange list additional features and utilities that make up the core functionality of the evaluation software.
- The Devices menu provides a list of supported products. Selecting a product from this list will configure the IMU evaluation software register map. Each device has a unique register map that must be selected to ensure proper sensor operation. The green box shows the active device. In this example, the ADIS16448 is selected.
- The Register Access option calls a sub-menu that lists all user-configurable registers available from the part number selected in the “Devices” drop-down menu. It also provides read/write access to each register.
- The Data Capture option calls a sub-menu designed to enable synchronous data logging from the selected device.
- The Demos option calls a 3-D visualization tool. This feature is only supported for the ADIS16480 and ADIS16448 devices.
- The Tools option calls a sub-menu that displays USB diagnostic information.
- The About option provides more detailed software revision information.
The purple box shows the primary, inertial output registers for the selected device. These values are updated in real-time after pressing the Read button (identified by a red box).
The yellow box shows three waveform recorder windows. Each window allows for plotting the three primary sensor types (gyroscopes, accelerometers, and magnetometers [if supported]). The top subplot displays gyroscope data, the middle plot displays accelerometer data and the bottom plot displays magnetometer data. Each plot color corresponds to the colors displayed in the “Output Registers” window (highlighted in purple).
The Register Access window provides read and write access to all user-accessible registers listed in the selected device's datasheet. The image below shows a screenshot of the window.
The color-coded image below is referenced in the following section.
The purple box sorts each set of registers into a standard category. The available categories are:
- Control/Status - General sensor configuration, alarm, and metadata registers
- Output - Inertial sensor output registers
- Calibration - User offset and misc. calibration registers
The section highlighted by the red box lists all of the registers in the selected category. Click on the register name to select a register for individual read/write access.
The green box identifies the read/write control options for the current register selection.
The Update Registers in Category button (shown in an orange box above) automatically reads all of the registers shown in the selected category (red box) and updates their contents in the GUI.
The section highlighted in yellow identifies provides a means of easily calling subroutines within the connected sensor. Clicking on a button is equivalent to writing a single-bit command to the respective register.
The Save Reg Settings to File programmatically reads and saves the contents of all of the registers in the current category into a *.csv (common-delimited) file. The Load Reg Settings from File button reads a target .csv file and attempts to write the saved values back into the sensor.
The Data Capture window only supports synchronous data acquisition and logging to a file on the host PC. Data samples are only read from the sensor when the data ready pin toggles, indicating that data is valid.
The color-coded image below is referenced in the following section.
The section highlighted in red lists all of the registers that are eligible for data capture. Checking the box next to each register indicates that the specified register values should be recorded once the data stream begins.
The section highlighted in green allows for customizing the file name and location of the resultant .csv files.
The section highlighted in yellow identifies the data stream configuration options.
- Record Length - The total number of samples to be captured. A sample is defined as a single “data valid” period as signaled by the data ready pin on the sensor
- Sample Rate - The instantaneous data ready rate as measured by the evaluation board
- Capture Time - The estimated data capture time in DD:HH:MM:SS format calculated based upon the instantaneous sample rate
- Add File Header - Selects whether a header displaying the contents of each column should be appended to the beginning of the .csv file
- Use Scaled Data - Signals to the software to convert the 16-bit values read from the sensor into a sign-adjusted (two's complement) scaled number. For example, when this option is enabled, be in units of degrees/second
Click on the following links to access several useful experiments in ADI's Engineer Zone/MEMS Community.
Gyroscope Sensitivity Measurement