AMS GP30 User manual

Demo Kit Manual
DN[Document ID]
ams Demo Kit Manual
Page 1
[v1-00] 2016-Aug-08
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GP30
Reference Board
GP30-DEV-KIT
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GP30 Reference Board
ams Demo Kit Manual
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[v1-00] 2016-Aug-08
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Content Guide
1Introduction .......................................................................................................................... 3
2Quick Start Guide................................................................................................................. 4
2.1 Install the Software............................................................................................................... 4
2.2 Install the Hardware:............................................................................................................ 4
2.3 Quick Start for Initial Measurements.................................................................................... 4
3Hardware Description........................................................................................................... 6
3.1 Introduction .......................................................................................................................... 6
3.2 Communication Interface..................................................................................................... 6
4Software Description............................................................................................................ 7
4.1 Measurement ....................................................................................................................... 7
4.1.1 First step with measurement control elements .................................................................... 7
4.1.2 Time of Flight Measurement Results ................................................................................... 8
4.1.3 2-Wire Temperature Measurement Results......................................................................... 9
4.2 Ultrasonic Measurement Control ....................................................................................... 10
4.3 Temperature Measurement Control................................................................................... 11
4.4 General Control..................................................................................................................12
4.5 Interfaces ........................................................................................................................... 13
4.6 Interrupt & Error Handling..................................................................................................14
5Software Menu................................................................................................................... 15
5.1 File...................................................................................................................................... 15
5.2 Tools .................................................................................................................................. 15
5.3 Firmware ............................................................................................................................18
5.4 Help.................................................................................................................................... 21
6Schematics, Layers and BOM ...........................................................................................22
7Ordering & Contact Information ......................................................................................... 25
8Copyrights & Disclaimer..................................................................................................... 26
9Revision Information ..........................................................................................................27
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ams Demo Kit Manual
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1 Introduction
The GP30-DEV-KIT is a platform for a quick and easy start-up and evaluation of the TDC-GP30
ultrasonic flow converter (UFC). It supports the QFN32 package, which offers the functionality need
for standard water and heat meters. The development kit offers user-friendly configuration and
extensive testing of the TDC-GP30, but also the complete assembler environment for programming
the device. For a proper use of the evaluation system, we strongly recommend to refer to the latest
TDC-GP30 datasheets.
Figure 1: Kit Content
Pos.
Item
Comment
1
PICOPROG V3.0
Programmer and interface
2
GP30-DEMO MODULE
Based on TDC-GP30 in QFN32 package
3
USB cable
Connects PicoProg V3.0 to PC
Please download the latest software for the kit from
http://www.acam.de/download-center/ultrasonicflowconverter/
1
2
3
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ams Demo Kit Manual
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2 Quick Start Guide
This section describes how to quickly set up the GP30-DEV-KIT, establish basic operation and
make measurements.
2.1 Install the Software
It is crucial to install the software before connecting the evaluation kit to your computer. A default
driver loading of your OS may interfere with correct installation.
Download the latest zipped software installation package to the desired directory.
Unzip the package to the desired directory.
Open “setup.exe” from the unzipped directory.
Follow the instructions on the screen.
2.2 Install the Hardware:
Make sure software is installed correctly before proceeding with this step!
Connect your computer with the PicoProg V3.0 using USB cable.
Connect PicoProg V3.0 and the evaluation kit motherboard using the DB15 interfaces
The green LED on the evaluation kit should be on.
Connect your spool piece to US_UP and US_DOWN
2.3 Quick Start for Initial Measurements
From the “Start” menu, go to “All Programs” and then to the “acam” directory. Double click the
“GP30_v1_5_3” icon (or newer versions, if available) to begin execution of the evaluation software.
The following screen should appear:
Figure 2: Measurement Page
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1. Click the “Verify Interface” button to confirm communication between PicoProg V3.0 and
TDC-GP30 is working. Both fields, “Pico Prog FW version “ and “Comm. With GP30 OK?”
should become green.
2. Next, open our configuration GP30Y_config_default_A1.A2.11.03 and download it into the
chip, pressing “Write Config”.
3. Connect your spool piece to pins US_UP and US_DOWN.
4. Press “Start Measurement” to begin measuring.
At this point, after successful completion of the above steps, a basic operation of the EVA kit
should be possible. The following sections provide a detailed description of the hardware and
software for advanced operation.
Figure 3: PICOPROG registry
If PICOPROG is not displayed correctly then go to the drivers folder , e.g. C:\Program Files
(x86)\acam-messelectronic\GP30\drivers\Win7_8 and install the driver for your operating system
manually. In case of an upgrade of the software to a newer version please make sure that the
software uses the latest driver. For manual installation open the USB communications window and
check the firmware version of the PICOPROG. It should be version PicoProg_GP30_v21.hex or
higher:
Figure 4: PICOPROG manual installation
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ams Demo Kit Manual
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3 Hardware Description
3.1 Introduction
The GP30-EVA MODULE board, shown in figure 3, s the front-end for a water or heat meter. The
transducers and temperature sensors can be connected directly to this board. It comes with a
32,768 kHz quartz (X2) and a 4 MHz ceramic oscillator (X1). All ports of TDC-GP30 are available.
Additional patch fields allow an easy extension with additional circuits. Those can be amplifiers or
analog switches for operation in gas meter mode.
Figure 5: GP30-DEV MODULE
Piezo
D U
PT1000
C H
GND VCC
INTN
MISO / TXD
SCK / RXD
MOSI
SSN
-
VCC_LEVEL
Pulse
Interface
3.2 Communication Interface
The PICOPROG device is a USB-to-SPI converter box that interfaces all UFC evaluation systems.
With version 3.0, the PICOPROG also supports the USB-to-UART conversion of TDC-GP30. The
PICOPROG is registered by the operating system initially as “picoprog v3.0 unprogrammed”. As
soon as the GP30 evaluation software starts, a special firmware is written into the PICOPROG to
handle the SPI or UART communication with the TDC-GP30. The PICOPROG is now listed as
“UNIPRO” in the device manager. For SPI communication only, PICOPROG version 2.0 is
sufficient.
Figure 4 shows the connection between the PICOPROG and the GP30 board. The flat connector
includes the power lines and the SPI or UART communication lines. On the demo board the
communication interface is initially selected to SPI (by solder bridge LJ2).
VCC_LEVEL is the voltage feedback for the PICOPROG level shifters.
Figure 6: SUBD15 Connector
GP30
DEMO
INTN
MISO / TXD
SCK / RXD
MOSI
SSN
-
VCC_LEVEL
GND
VCC
13
8
12
11
6
14
3
15
15
10
5
11
6
1
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ams Demo Kit Manual
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4 Software Description
4.1 Measurement
When started, the software comes up with the main window, showing the “Measurements” tab.
Figure 7 Main window
4.1.1 First step with measurement control elements
A good first step is to load a working configuration and make measurements in frontend mode
(without using the internal 32-Bit µP). ams provides a sample configuration file named
GP30Y_config_default_A1.A2.11.03 which typically works well with DN20 spool pieces.
Load configuration file: File menu Open Config choose appropriate configuration file
Next step: Press “System Reset” button. Now the PicoProg FW version field should get green
and the appropriate version should be displayed (20 or higher). Further, “Comm GP30 OK?”
should get green to show that communication with TDC-GP30 works.
Next step: If watchdog is not disabled by “System Reset” button press “Disable Watchdog”
button.
Next step: Press “Write Config” button to download the configuration settings into TDCX-GP30.
Next step: Press “Start measurement” button. Now the chip starts to measure and the software
displays the results in the table “Time of Flight Measurements”.
The user can now modify the configuration to fit it to his needs. Having done this, the user can store
his own configuration files.
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4.1.2 Time of Flight Measurement Results
GP30 stores the first 8 hits of every TOF direction separately and also the sum of all measured hits.
These 9 results are displayed for both directions, as we call them up and down. The evaluation
software additionally calculates the difference between up and down stream, DIFF-TOF. In total, all
27 results are displayed in the “Results” column.
In the “Average” column the user can set the sample size for the averaging (<1000). The software
calculates the rolling average of the results accordingly. In “Std. Dev.” column the standard
deviation, calculated over a variable sample size, is displayed. The number of samples can be
chosen (e.g. 100).
The same is done with the amplitude values of the receiving signals and the pulse width ratio
between first hit and start hit. The values for both directions are displayed.
Note: The high speed calibration is by default off. This is more convenient when comparing
measurement data. But when collecting data for calibration it is strongly recommended to have this
active.
Figure 8 HS Clock calibration
A graph to display TOF measurement results opens in a separate window by pressing “TOF Graph”
button
It is possible to activate up to four plots. Each plot has various selections, e.g. TOF1UP, TOF2UP
etc.. Always averaged values are displayed.
Figure 9 TOF Graph
The measurement data can be exported into text files, either the main values for calibration only, or
the full data.
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ams Demo Kit Manual
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Figure 10 Data export for calibration
Figure 11 Dat export complete
4.1.3 2-Wire Temperature Measurement Results
A graph to display temperature measurement results opens in a separate window by “Temperature
Graph” button, similar to TOF graph.
Figure 12
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ams Demo Kit Manual
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4.2 Ultrasonic Measurement Control
In this tab the user makes all settings for an appropriate ultrasonic measurement. They group as
follows:
Time of Flight Sequence Control
Time of Flight Hit Control
Amplitude Measurement Control
Transducer Interface Options
Figure 13
The meanings of the various settings are displayed in clear text. For more details about the register
settings please refer to the GP30 manual.
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