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P r o g r a m m e r K i t Current Sensor - TLI 4970 U s e r ’ s M a n u a l Software Description for Evaluation Kits Rev. 1.2, 2013-06-06 S e n s e a n d C o n t r o l...
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Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life.
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Revision History Page or Item Subjects (major changes since previous revision) Rev. 1.2, 2013-06-06 General Pictures updated with new filter settings Trademarks of Infineon Technologies AG AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™, CORECONTROL™, CROSSAVE™, DAVE™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™, ISOFACE™, IsoPACK™, MIPAQ™,...
PGSISI-2. The maximum communication rate between PC and sensor is around 41700 samples per second. The PGSISI-2 periodically requests the actual current value from the sensor and returns the response of the sensor to the PC.
This chapter describes the installation of the hardware and software components of the Programmer Kit package for TLI4970 sensors. First of all the PC software must be installed before the PGSISI-2 can be connected to the PC. During installation of the PC software the driver for the PGSISI-2 will be installed.
The Evaluation Board, see Figure 8, acts as an interface between one TLI4970 and one PGSISI-2. The objective of the Evaluation Board is to electrically connect the sensor with the 25 pin D-Sub (DB25) connector of the PGSISI- The following chapter describes the functionality of the hardware. The layout and the schematic of the Evaluation...
Note: The level shifter ICs (IC1 and IC2) on the Evaluation Board are only needed since the micro controller of the PGSISI-2 is operated on +5 V, while the TLI4970 is operated with a supply voltage of +3.3 V. In order to allow reliable communication between the two voltage domains, the level shifter ICs are needed.
When using this option, the jumpers JP4 and JP6 need to be set to the “Extern” setting. Then the V voltage for the sensor is no longer taken from the PGSISI-2 but from the external power supply. The level-shifters are still supplied by the PGSISI-2.
For this communication, the OCD pin is used. Due to the bidirectional data transfer, the level shifting between the +5 V micro controller on the PGSISI-2 and the 3.3 V current sensor domain needs a special level shifter.
Figure The field “Programmer” will show a list of all PGSISI-2 that have been connected to the PC via a USB cable. If the respective field is empty, please connect a PGSISI-2 via USB cable to the PC or press the update button. The number of connected PGSISI-2 programmer is not limited.
Chapter 4.2. For example, each value, which has been read from the sensor, will be stored temporarily in a CSV file located in the folder “C:\ProgramData\Infineon Technologies\TLI4970” Before the sensor or the Evaluation Board will be unplugged, turn off the supply power of the sensor. To turn off the power please press the button “Power is On”.
Graphical User Interface of the button changes to “Power is Off. Pressing the button again will turn on the power of the sensor and the name of the button will change back to “Power is On”. Turn off the power of the sensor is recommended before the sensor or the Evaluation Board is removed.
Graphical User Interface Figure 14 Folder and Search Options Sensor Specific Elements The sensor specific elements are located mainly in the center and on the right side of the window, see Figure The objective of the elements located in the center is to visualize the current measured by the sensor and to display the status values.
Graphical User Interface The status information is displayed as a list in the field “List of Status Information”. The update rate of the graphical elements may lag on computer with low processing power. To avoid a hang-up of the PC select a low sample rate. By default the sample rate is 100 Samples per second. On the right side of the window, a so-called tabbed window is shown.
Graphical User Interface Figure 17 Window for configuring the y- and x-axis 4.2.1.1 Sensor Parameters This tab window can be used to change some predefined parameters of the connected sensor, see Figure Details about the meaning of these parameters are given in the data sheet or programmer’s guide. The given parameter can either be changed in the EEPROM or in the RAM.
Graphical User Interface Figure 18 Sensor Parameters 4.2.2 Data View The “Data View” window shows the last 1000 samples that are displayed on the graph. This view displays value words as well as status words, see Figure • Index: The index corresponds to the sample index that has been sent from the programmer to the PC. The PC compares the actual number of received samples with the sample number received from the programmer.
Graphical User Interface Figure 19 Data View EEPROM Window The EEPROM window is used to read and write the EEPROM of the TLI4970. Each line consists of 16 bits. On the left side of the window the EEPROM addresses are displayed including their corresponding EEPROM field names.
Graphical User Interface • Burn EEPROM: Pressing this button will burn the displayed values into the sensor’s EEPROM. The procedure is as follows: The power of the sensor is turned off and on. Then, the test mode is enabled. Finally, the new values of the EEPROM will be written.