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DRV2605: DRV2605 Auto-calibration issues

user4370495
Expert 1155 points

Part Number: DRV2605

Dear ti:

my custom use drv2605 as The steering wheel touch switch,  the motor is LRA ,Spec. as follow:
LRA规格.pdf


but when i use  auto-calibration ,  after initialization vibration cannot close on its own.
the return valve is:


May i know which register can closed its own function. thanks.

  • 0
    TI__Guru* 84915 points
    Hi,

    Could you provide additional details about this issue?

    Could you provide the circuit schematic? Also, is the LRA load attached or glued to a mass? It is important to glue the LRA to a mass (usually we use a 100g metal block). Otherwise, there could be issues with the auto-calibration.

    In addition, the LRA pdf doesn't contain details about the resonance frequency. Do you have these details too?

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    TI__Guru* 84915 points
    Hi,

    Do you have any feedback on this?

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    Expert 1155 points

    Dear ti:

    Update .thanks 

    waveform:

    0602.Waveform.docx

    configuration tools:

    5483.DRV2604 and DRV2605 Configuration Tool and Design Equations - LRA.xlsx

     Sch.

    Installation method：Above is the panel, the lower is the case. The motor is embedded in the casing and then the panel covered.

  • 0 in reply to user4370495
    TI__Guru* 84915 points
    Hi,

    Excuse me, could you tell me which value you read in register 0x00 after the auto-calibration procedure?

    DIAG_RESULT flag (bit 3) shows if the auto-calibration routine is correct or not.

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    TI__Guru* 84915 points
    Hi,

    Excuse me, could you take a look at my last response?

    Do you have any update on this?

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    TI__Guru* 84915 points
    Hi,

    I will close this e2e thread for now, but feel free to comment about this issue in case you have additional observations.

    We will be glad to help you.

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    Expert 1155 points

    Dear Luis:

    sorry for the delay.   the value in register 0x00 after the auto-calibration procedure.

               left motor:          right motor:
    0x00:     0xb4      0xe0
    0x18     0xB4      0x07
    0x19      0xB4     0xB6

    left motor:

    right side:

  • 0 in reply to user4370495
    TI__Guru* 84915 points

    Hi,

    Thank you for providing the information above.

    Could you try configuring the device with the following registers settings, please?

    These settings are normally used to set the auto calibration in the DRV2605x.

    Fullscreen DRV2605L_LRA_AutoCalibration.txt Download 
    Exported at :5/13/2019 10:37:21 AM
	========Register Dump Start========
		Reg:[0x0]	=	0xe0		Status
		Reg:[0x1]	=	0x7		Mode
		Reg:[0x2]	=	0x0		Real-Time Playback Input
		Reg:[0x3]	=	0x6		Library Selection
		Reg:[0x4]	=	0x1b		Waveform Sequencer 1
		Reg:[0x5]	=	0x0		Waveform Sequencer 2
		Reg:[0x6]	=	0x0		Waveform Sequencer 3
		Reg:[0x7]	=	0x0		Waveform Sequencer 4
		Reg:[0x8]	=	0x0		Waveform Sequencer 5
		Reg:[0x9]	=	0x0		Waveform Sequencer 6
		Reg:[0xa]	=	0x0		Waveform Sequencer 7
		Reg:[0xb]	=	0x0		Waveform Sequencer 8
		Reg:[0xc]	=	0x01		GO
		Reg:[0xd]	=	0x0		OverDrive Time Offset
		Reg:[0xe]	=	0x0		Sustain Time Offset, Positive
		Reg:[0xf]	=	0x0		Sustain Time Offset, Negative
		Reg:[0x10]	=	0x0		Break Time Offset
		Reg:[0x11]	=	0x5		Audio-to-Vibe Control
		Reg:[0x12]	=	0x19		Audio-to-Vibe Minimum Input Level
		Reg:[0x13]	=	0x64		Audio-to-Vibe Maximum Input Level
		Reg:[0x14]	=	0x19		Audio-to-Vibe Minimum Output Drive
		Reg:[0x15]	=	0xff		Audio-to-Vibe Maximum Output Drive
		Reg:[0x16]	=	0x3d		Rated Voltage
		Reg:[0x17]	=	0xaa		Overdrive Clamp Voltage
		Reg:[0x18]	=	0x6		Auto Calibration Compensation Result
		Reg:[0x19]	=	0xc6		Auto Calibration Back-EMF Result
		Reg:[0x1a]	=	0xa6		Feedback Control
		Reg:[0x1b]	=	0x93		Control1
		Reg:[0x1c]	=	0xf5		Control2
		Reg:[0x1d]	=	0x80		Control3
		Reg:[0x1e]	=	0x20		Control4
		Reg:[0x1f]	=	0x40		Control5
		Reg:[0x20]	=	0x30		LRA Open Loop Period
		Reg:[0x21]	=	0xce		VBAT Voltage Monitor
		Reg:[0x22]	=	0x3c		LRA Resonance Period
	========Register Dump End========

    Please let me know your results and observations on this.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    TI__Guru* 84915 points
    Hi,

    Do you have any response on this? Could you try the settings above?

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 10 points

    Dear TI,
    We want to know whether the DRV2605 can output the wave in custom, rather than in using library.

  • 0 in reply to user5853578
    TI__Guru* 84915 points
    Hi, Yuexin,

    Welcome to E2E and thank you for your interest in our products!

    The DRV2605 features an analog input mode which can be used to send a customized waveform. The amplitude of the input determines the amplitude of the output waveform:

    www.ti.com/.../drv2605.pdf

    I hope this helps you. Please let me know if you have additional questions or comments. I also suggest to start a new E2E thread in order to separate your questions from the actual threads and avoid confusion in case the threads are opened again.

    Thank you!

    Best regards,
    Luis Fernando Rodríguez S.