dialog DA16600 EVK PROEVK PRO UM-WI-041 User Manual

User Manual
DA16600 EVK PRO
UM-WI-041

Abstract

This document describes how to set up and use the DA16600 EVK PRO (504-02-A) with the Wi-Fi IoT Power Profiler toolbox. This document explains the calibration process step-by-step for the DA16600 development kits.

Term and Definition

References

1.  DA16200, Datasheet, Dialog Semiconductor
2.  UM-WI-023, DA16200, EVK User Manual, Dialog Semiconductor
3.  UM-B-114, DA14531, Devkit Pro Hardware, User Manual, Dialog Semiconductor
4.  UM-WI-026, DA16600, EVK User Manual, Dialog Semiconductor

Current Measurement

Current Measurement with DA16600 EVK PRO and Wi-Fi IoT Power Profiler Tool
3.1 Test Setup
Figure 1 shows a typical test setup environment with DA16600 EVK PRO and Wi-Fi IoT Power Profiler Tool.

Figure 1: Hardware Setup with DA16600 EVK PRO

1.  To measure current with DA16600 EVK PRO, connect the two boards via PCI connectors.
2.  Change the jumper setting (P1 and P2) and switch (SW5) settings on the DA16600 EVK.
3.  Open the DA16600 EVK’s power two jumper caps as shown in Figure 2.
   There is a selectable DIP Switch (SW5):
   ● If SW (1) moves to switch on, you can measure the current of the WIFI chipset.
   ● If SW (2) moves to switch on, you can measure the current of the Bluetooth ® LE chipset.
   By switching on both, you can measure all current consumed by Bluetooth ® LE and WIFI.

Figure 2: Setup DA16600 EVK Jumper

3.2 DA16600 EVK PRO (504-02-A)
The actual component locations of the DA16600 EVK PRO are shown in Figure 3.

Figure 3: DA16600 EVK PRO(504-02-A)

Description

•  PCI Connector: a connector on which to install the DA16600 EVK
•  UART MCU: provides communication between DA16600 EVK PRO and PC. Also transfers the current measurement samples to the PC
•  Current Sense Circuit: monitors the current of the DA16600 EVK
•  USB Hub: USB interfaces to the PC

3.3 Wi-Fi IoT Power Profiler
Wi-Fi IoT Power Profiler uses the SPI port of a device connected via USB for communication. The user needs to select the SPI port to connect before using the Power Profiler tool.
To select the SPI port, simply click the checkbox next to the SPI port. The port might be preselected already since the application remembers the last selected SPI port. If necessary, use the Refresh button to update the list of available SPI ports for the devices connected via USB. If the device is connected but not listed, it is better to use a different  USB port, wait a few seconds and then click the Refresh button again. Problems in identifying the FTDI device may indicate an invalid installation of the FTDI drivers.
The button can be used to access the application’s user guide, release notes, license, and about info. When the user clicks the OK button to launch the main application window (Figure 4) , the SmartSnippets Wi-Fi IoT Power Profiler tool can be downloaded from the customer support portal. Direct link: windows.

Figure 4: Virtual COM Port Selection Window

3.4 Wi-Fi IoT Power Profiler Setup
When the proper COM port is selected (Figure 4), click on the OK button then the main window of the Power Profiler application in SmartSnippets Wi-Fi IoT Power Profiler Toolbox will pop up (Figure 5).
Click the Config button at the bottom right and check that the configuration is correct (Figure 6).

Figure 5: Power Profiler of SmartSnippets Toolbox Main Window

Figure 6: Power Profiler Configuration

In the H/W Settings tab of the new profile, the Voltage (1.1 V – 3.3V) field is typically empty and The calibration Offset (mA) field is zero. Apply the correct voltage as configured in the Power Meter LDO (typically, it is 3.3 V). The Calibration offset (mA) will be filled automatically with a calculated value. This value is good enough to be able to measure with ±2% accuracy, so in most cases, we can leave it as is.
Check the multiplication factor. For DA16600 it should be 155.
The user can set a maximum scale for the waveform window optionally since there are large peaks on wakeup from sleep (charging capacitors) generally. So the useful part of the signal is compressed to a very small area. To set a maximum scale for the waveform window, open the Chart Settings tab (Figure 7), and for Plot Current1, set the MAX scale of Current (mA) to 10 mA. Note that this does not affect anything to the accuracy of the measurement. It can only zoom the waveform, which is presented to the viewer.

Click Apply and return to the measurement window.

Figure 7: Power Profiler Chart Settings

3.5 Measurements
In the measurement window (Figure 8), click Initialize at the bottom left (this step is only needed at the first communication with the A/D converter).
Click Start.

Figure 8: Free Running Capture

Figure 9: Consumption Measurement by Using Chart Controls

3.6 Manual Calibration
For the most accurate measurement, follow the manual calibration steps below:

1.  Remove the daughterboard, i.e. the load, by physically disconnecting the DA16600 EVK from the motherboard.
2.  In the main window of the Power Profiler, click Config and temporarily set the Calibration Offset (mA) field to zero (Figure 10).

Figure 10: Setting Offset to Zero

3. Run a free-running capture for a few seconds and note down the number in the Avg Current (mA) field (Figure 11). Note the last digits of the number keep changing slowly due to temperature drift. It is important to do the calibration steps periodically.
4. Finally, put this average value with a negative sign in the Calibration Offset (mA) field. CTRL-C and CTRL-V are also workable. (Figure 11).

Figure 11: Setting Calibration Offset

The user manual can be downloaded from the customer support portal. Link: https://www.dialogsemiconductor.com/products/da16600-modules

Revision History

Status Definitions

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