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This User Guide is meant to be used to configure the IQS7229AEV02 using the GUI PC software
Contents
2.1
Step 1: GUI Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Step 2: Launch GUI Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Step 3: Hardware Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
2.5
Step 5: Initiate IQS7229A Communication (Streaming) . . . . . . . . . . . . . . . . .
2.6
Step 6: Acknowledge Reset and Streaming Mode . . . . . . . . . . . . . . . . . . . .
2.7
Step 7: Configure IQS7229A EV kit . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1
IQS7229A Streaming Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.1
Bar Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1.2
Scope View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
Export Device Configuration to H-File . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
Import Preconfigured H-File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
Command Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.1
Acknowledge Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2
Soft Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.3
ATI All and Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.4
Reseed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6
Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6.1
System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1
Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2
Event Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Copyright © Azoteq 2025
All Rights Reserved
IQ Switch
®
ProxFusion
IQS7229A User Guide
IQS7229A User Guide
Revision v1.0.1
®
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March 2025

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Summary of Contents for Azoteq ProxFusion IQS7229A

  • Page 1: Table Of Contents

    Event Mask ......... 5 Cycle Setup 6 Button Setup 7 Reference Design Copyright © Azoteq 2025 IQS7229A User Guide Page 1 of 25 All Rights Reserved Revision v1.0.1...
  • Page 2: Introduction

    For IC-specific information, operation, and memory map details, please refer to the IQS7229A Datasheet. Figure 1.1: IQS7229AEV02 EV Kits Copyright © Azoteq 2025 IQS7229A User Guide Page 2 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 3: Getting Started

    8-channel (AZP1376C1) EV kit is used as an example. 2.1 Step 1: GUI Software Installation Download and install the Azoteq IQS7229A GUI PC Software from the Azoteq website under the Software and Tools page. Extract the downloaded zip file, follow the installation wizard procedure.
  • Page 4 If a custom cable or hardware is used, the required connections are shown in Table 2.1 and Figure 2.4 below. Table 2.1: DS200 Pin-out IQS Pins DS200 Pins Pin 1 Pin 3 Pin 7 Pin 9 Pin 10 Copyright © Azoteq 2025 IQS7229A User Guide Page 4 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 5: Step 4: Pc Connection Verification

    Note: If the connected DS200 device firmware is out of date, an ‘Update available’ button should au- tomatically appear next to the device enumeration. Click this button to launch the Azoteq firmware upgrade tool and update the firmware, as shown in Figure 2.6.
  • Page 6: Step 5: Initiate Iqs7229A Communication (Streaming)

    Click on the red text button ‘ACK Reset’ to clear the reset event flag. The text ‘ACK Reset’ should change colour to black, indicating successful reset acknowledgement, and should remain so there- after. Figure 2.8: ACK Reset Button Copyright © Azoteq 2025 IQS7229A User Guide Page 6 of 25 All Rights Reserved Revision v1.0.1...
  • Page 7: Step 7: Configure Iqs7229A Ev Kit

    Figure 2.10 below, with settings organized in menu tabs. Refer to Sections 4, 5 and 6 for more detail. The pop-up user settings window can be used to configure all the IQS7229A device parameters. Copyright © Azoteq 2025 IQS7229A User Guide Page 7 of 25 All Rights Reserved Revision v1.0.1...
  • Page 8 ® IQ Switch ® ProxFusion Series Figure 2.10: User Settings Window Copyright © Azoteq 2025 IQS7229A User Guide Page 8 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 9: Iqs7229A Debug And Display Software Overview

    Note: All the signals recorded in the graphs are read directly from the IC. For more information re- garding the register map, please consult the IQS7229A datasheet. Copyright © Azoteq 2025 IQS7229A User Guide Page 9 of 25 All Rights Reserved Revision v1.0.1...
  • Page 10: Bar Graph

    The data in the current view of the scope can be saved to a CSV file. To save the data, first click ‘Pause Streaming’ as shown in Figure 3.3. Copyright © Azoteq 2025 IQS7229A User Guide Page 10 of 25 All Rights Reserved Revision v1.0.1...
  • Page 11 The following window will pop up and prompt the user to select which part of the data should be saved. Select the “Save to CSV" button to save the streamed data. Copyright © Azoteq 2025 IQS7229A User Guide Page 11 of 25 All Rights Reserved Revision v1.0.1...
  • Page 12: Data Logging

    From here, the desired variables from the IQS7229A can be enabled or disabled. To start logging, click the “Start Logging” button, and choose the destination of the CSV log file. Copyright © Azoteq 2025 IQS7229A User Guide Page 12 of 25 All Rights Reserved Revision v1.0.1...
  • Page 13: Export Device Configuration To H-File

    If the device was previously configured and an associated .h-file was exported from the GUI, the file may now be imported into the GUI using the ‘ImportT H File’ button. Additional information will be provided, to verify that the file was imported correctly: Copyright © Azoteq 2025 IQS7229A User Guide Page 13 of 25 All Rights Reserved Revision v1.0.1...
  • Page 14: Command Buttons

    The “Ack Reset” button clears the IQS7229A’s reset flag by writing the Acknowledge Reset bit to the IC. This should be the fist step after powering on any Azoteq IQS-device. On start-up, the IC will set its reset flag to indicate that a reset event has occurred.
  • Page 15: Events

    Power Event: The power mode has recently changed. > Touch-Prox Status: These flags indicate the proximity and touch status of each channel. Figure 3.11: Events Panel Copyright © Azoteq 2025 IQS7229A User Guide Page 15 of 25 All Rights Reserved Revision v1.0.1...
  • Page 16: System Settings

    Low Power (LP): Flexible key scan rate. Typically set to a slower rate than NP. > Automatic Power Modes: Automatically switches between power modes. In order to optimise power consumption and performance, power modes are "stepped" by default in Copyright © Azoteq 2025 IQS7229A User Guide Page 16 of 25 All Rights Reserved Revision v1.0.1...
  • Page 17: Event Mask

    ATI events. By clearing the ATI Event Mask bit, the IQS7229A will not open a communication window to report ATI events. This only affects the behaviour of I C Event Mode — the associated event flags will still be set. Copyright © Azoteq 2025 IQS7229A User Guide Page 17 of 25 All Rights Reserved Revision v1.0.1...
  • Page 18: Cycle Setup

    Note: The Tx corresponding to the CRx number needs to be selected to get the hardware correct for self-capacitive sensing. Table 5.1: Channel receiver pins Channels Receiver CRx0 CRx1 CRx2 CRx3 CRx4 CRx5 CRx6 CRx7 Copyright © Azoteq 2025 IQS7229A User Guide Page 18 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 19 ® IQ Switch ® ProxFusion Series Figure 5.1: IQS7229A Cycle Setup Copyright © Azoteq 2025 IQS7229A User Guide Page 19 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 20: Button Setup

    The ATI settings allow tuning of various parameters. Re-ATI will be triggered Copyright © Azoteq 2025 IQS7229A User Guide Page 20 of 25 All Rights Reserved Revision v1.0.1...
  • Page 21 filters. After a prox or touch event timeout, a reseed of the LTA is forced. If the LTA is outside of the LTA ATI band a re-ATI event will occur if ATI is not disabled. Figure 6.2: IQS7229A Button Timeout Setup Copyright © Azoteq 2025 IQS7229A User Guide Page 21 of 25 All Rights Reserved Revision v1.0.1...
  • Page 22 LTA amounts for slowly varying counts and to utilise the fast LTA beta for rapidly responding to count behaviour contrary to normal activations. These defaults are the recommended values and serve as a good starting point. Copyright © Azoteq 2025 IQS7229A User Guide Page 22 of 25 All Rights Reserved Revision v1.0.1...
  • Page 23: Reference Design

    ESD-Ground MCLR / GPIO6 TSM-105-01-T-DH-K-TR Make Ground to ESD ring connection here at P1 Figure 7.1: 8 Button Self-Capacitance Reference Schematic (AZP1376C1) Copyright © Azoteq 2025 IQS7229A User Guide Page 23 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 24 Make Ground to ESD ring connection here at P1 1.0K 1.0K 1.0K LTST-C230EKT LTST-C230EKT LTST-C230EKT OUT3 OUT4 OUT5 Figure 7.2: 6 Button Self-Capacitance Reference Schematic (AZP1376B2) Copyright © Azoteq 2025 IQS7229A User Guide Page 24 of 25 All Rights Reserved Revision v1.0.1 March 2025...
  • Page 25: Contact Information

    No licenses to patents are granted, implicitly, express or implied, by estoppel or otherwise, under any intellectual property rights. In the event that any of the abovementioned limitations or exclusions does not apply, it is agreed that Azoteq’s total liability for all losses, damages and causes of action (in contract, tort (including without limitation, negligence) or otherwise) will not exceed the amount already paid by the customer for the products.

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