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DRV2605L Demonstration Program

2.2.3

Mode 3 – LRA Clicks

Mode 3 shows two different LRA click styles. Button 1 shoes a single sharp click and Button 2 shows a
click and release effect. The click and release effect provides a haptic waveform on both the button press
and the button release.

Figure 7. LRA SharpTick2_80 (Button 1)

Figure 8. LRA StrongClick 100 and Release SharpTick2

80 (Button 2)

2.2.4

Mode 2 – Alerts

Mode 2 showcases the advantages of the smart loop architecture, which includes auto-resonance
tracking, automatic overdrive, and automatic braking.

Figure 9

and

Figure 10

show the difference in acceleration when using LRA auto-resonance on and LRA

auto-resonance off. Notice that the acceleration is higher when driven at the resonant frequency. Also,
notice the start and stop time of the acceleration are much quicker when using the overdrive and braking
feature of the DRV2605L.

Figure 9. LRA Auto-Resonance On (Button 1)

Figure 10. LRA Auto-Resonance Off (Button 2)

9

SLOU389A – May 2014 – Revised June 2014

DRV2605L ERM and LRA Haptic Driver Evaluation Kit

Submit Documentation Feedback

Copyright © 2014, Texas Instruments Incorporated

Содержание DRV2605L

Страница 1: ...microcontroller linear actuator eccentric rotating mass motor sample waveforms and capacitive touch buttons which can completely demonstrate and evaluate the DRV2605L This user s guide contains instru...

Страница 2: ...CT Mode Sets 6 3 ERM Click and Ramp Down Waveform Button 1 8 4 LRA Ramp Up and Pulsing Waveform Button 4 8 5 ERM SharpClick_100 Button 1 8 6 ERM StrongClick_60 and Release SharpClick_100 Button 2 8 7...

Страница 3: ...per 27 30 Layer 2 Copper 28 31 Layer 3 Copper 28 32 Bottom Copper 29 List of Tables 1 Jumper Descriptions 5 2 Mode and Effects Table 7 3 DRV2605L Library Table 13 4 Binary Counting Modes 16 5 Hardware...

Страница 4: ...omputer using the included mini USB cable The demo begins with a board power up sequence and then enters the demo effects mode The four larger buttons B1 to B4 can be used to sample haptic effects usi...

Страница 5: ...n JP1 Shorted Connect MSP430 GPIO or PWM output to DRV2605L IN TRIG JP2 Shorted 3 3 V reference for I2 C JP3 JP4 Shorted Connect on board actuators to DRV2605L MSP USB to MSP Select USB 5 V or VBAT po...

Страница 6: ...gram www ti com 2 DRV2605L Demonstration Program The DRV2605LEVM CT contains a microcontroller and embedded software to control the DRV2605L There are three sets of modes accessible by pressing and ho...

Страница 7: ...level trigger B1 SharpTick2_80 Internal trigger B2 StrongClick_100 Release External edge trigger Mode 3 LRA ROM LED M3 On B3 SoftBump_100 Internal trigger B4 DoubleClick_100 External level trigger B1...

Страница 8: ...Figure 4 LRA Ramp Up and Pulsing Waveform Button 1 Button 4 2 2 2 Mode 4 ERM Clicks Mode 4 shows two different ERM click styles Button 1 shoes a single sharp click Button 2 shows a click and release e...

Страница 9: ...chitecture which includes auto resonance tracking automatic overdrive and automatic braking Figure 9 and Figure 10 show the difference in acceleration when using LRA auto resonance on and LRA auto res...

Страница 10: ...e 11 LRA Acceleration versus Frequency over Output Voltage Figure 12 and Figure 13 show the difference between an ERM with automatic closed loop overdrive and braking and the open loop library wavefor...

Страница 11: ...aveform match B1 Play repeat selected waveform from the options list B2 Cycle through the waveforms in the options list to choose from B3 Selects the guessed waveform B1 as answer B4 Play repeat the g...

Страница 12: ...e on board ERM 3 Decrease the volume of the audio source if the ERM is constantly vibrating or increase the volume if the ERM is not vibrating at all 4 Feel the haptic vibrations as the audio plays 5...

Страница 13: ...ary The current library flashes on the mode LEDs B2 Press to select the LRA ROM library 2 Then use the ROM effects as described previously Each ERM library was designed for specific actuator behavior...

Страница 14: ...dium click 3 60 64 Transition hum 1 100 105 Transition ramp down short sharp 2 50 to 0 24 Sharp tick 1 100 65 Transition hum 2 80 106 Transition ramp up long smooth 1 0 to 50 25 Sharp tick 2 80 66 Tra...

Страница 15: ...ncrement mode button for approximately 3 seconds until the mode LEDs flash and the colored LEDs flash once 2 Press and hold the increment mode button one more time until the mode LEDs flash and the co...

Страница 16: ...est Life test using RTP 2 seconds on 1 second off life test repeats Mode 6 infinite times and board must be powered down to stop Increment B2 Test buzz Life test RTP or decrement amplitude using B3 an...

Страница 17: ...st points jacks and connectors Table 5 gives a brief description of the hardware Table 5 Hardware Overview Signal Description I O PWM External input to DRV2605L IN TRIG pin Input Observe EN External D...

Страница 18: ...7 Terminal Block and Test Points The DRV2605LEVM CT can be used with an external actuator Follow the instructions below to attach an actuator to the OUT terminal block 1 Remove jumpers JP3 and JP4 whi...

Страница 19: ...605L using PWM follow the instructions below 1 Enter Additional Hardware Modes 2 Select Mode 2 00010 b using the increment mode button B1 Disable amplifier B2 ERM mode B3 LRA mode B4 No function 3 Cho...

Страница 20: ...4 5 1 MSP430 Trigger Control 1 Enter Additional Hardware Modes 2 Select Mode 0 00000 b using the increment mode button B1 Select the on board ERM B2 Select the on board LRA B3 Trigger select 1 Intern...

Страница 21: ...trolled by an external I2 C source Attach the external controller to the I2 C header at the top of the board be sure to connect SDA SCL and GND from the external source I2 C communication is possible...

Страница 22: ...Vpeak 2 In demo mode select mode 0 00001 b using the increment mode button 3 In mode 0 press either button B1 or B2 to enable the DRV2605L audio to haptics Buttons B3 and B4 switch to internal trigger...

Страница 23: ...The higher frequency switching content does not contribute to the vibration strength of the actuator and can make it difficult to interpret the modulated output waveform on an oscilloscope The oscill...

Страница 24: ...er to an available USB port 5 Connect the programmer to the SBW header on the DRV2605LEVM CT 6 In CCS a Open the project file by selecting Project Import Existing CCS Project b Select Browse and navig...

Страница 25: ...8 NC 9 P2 0 Button 1 10 P2 1 Button 2 11 P2 2 Button 3 12 P3 2 PWM 13 P3 3 WLED 0 14 P3 4 WLED 1 15 P2 3 Button 4 16 P2 4 button 17 P2 5 button 18 P3 5 WLED 2 19 P3 6 WLED 3 20 P3 7 WLED 4 21 P1 6 SC...

Страница 26: ...249 0402 R19 0402 249 U3 3 3 V 400 mA TPS73633DBV GND M4 0603 White R15 0402 249 TS5A12301EYFPR U5 WCSP6 YFP GND LRA_OUT LRA_OUT JP3 R31 DNP 0402 R30 0402 DNP R32 0 0 0402 Vbat C12 0402 0 1 F 16 V GND...

Страница 27: ...yout Figure 28 X Ray Top View spacer Figure 29 Top Copper 27 SLOU389A May 2014 Revised June 2014 DRV2605L ERM and LRA Haptic Driver Evaluation Kit Submit Documentation Feedback Copyright 2014 Texas In...

Страница 28: ...gure 30 Layer 2 Copper spacer Figure 31 Layer 3 Copper 28 DRV2605L ERM and LRA Haptic Driver Evaluation Kit SLOU389A May 2014 Revised June 2014 Submit Documentation Feedback Copyright 2014 Texas Instr...

Страница 29: ...ti com Layout Figure 32 Bottom Copper 29 SLOU389A May 2014 Revised June 2014 DRV2605L ERM and LRA Haptic Driver Evaluation Kit Submit Documentation Feedback Copyright 2014 Texas Instruments Incorpora...

Страница 30: ...2 445 4978 1 ND CAP SMD0402 CERM 1 0UFD 16V 10 X5R ROHS TDK CORP 14 C1005X5R0J104K 3 C8 C9 C10 445 1266 1 CAP SMD0402 CERM 0 1UFD 6 3V 10 X5R ROHS TDK CORP 15 0805YD106KAT2A 1 C6 478 5165 1 CAP SMD080...

Страница 31: ...N 100LS PHOENIX CONTACT ROHS Test Points and Switches 37 5011 2 GND TP1 Solder so 5011K PC TESTPOINT BLACK 063 HOLE ROHS KEYSTONE ELECTRONICS that color ring is secured 38 5003 4 PWM ENIN OUT 5003K PC...

Страница 32: ...al May 2014 to A Revision Page Changed C1 designator value to 1 0 F in the schematic 26 Changed C1 from item 12 to item 13 in BOM 30 32 Revision History SLOU389A May 2014 Revised June 2014 Submit Docu...

Страница 33: ...dling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its e...

Страница 34: ...his equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Opera...

Страница 35: ...age et ayant un gain admissible maximal et l imp dance requise pour chaque type d antenne Les types d antenne non inclus dans cette liste ou dont le gain est sup rieur au gain maximal indiqu sont stri...

Страница 36: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Страница 37: ...ltera Analog Devices Intersil Interpoint Microsemi Aeroflex Peregrine Syfer Eurofarad Texas Instrument Miteq Cobham E2V MA COM Hittite Mini Circuits General Dynamics 8 812 309 58 32 8 812 320 02 42 or...

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