DRV2605L: setting frequency with DRV2605LEVM-MD test board

Hi, Ryan,

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

Excuse me, do you have a capture of the main window of the haptics control console (the one that includes the auto-calibration option) to see if everything is configured correctly?

In addition, are you testing the LRA included in the EVM? Do you have good results with this actuator?

Any other information you could provide will be appreciated.

Best regards,
Luis Fernando Rodríguez S.

Hi Luis,

Please see image below for the interface:

I am using it to test a mplus 1040 LRA. With "Closed Loop" checked, "Run Auto Calibration" always failed.

So I want to set a fix frequency by unchecking "Closed Loop" and writing a new value to Reg 0x22. But it doesn't work.

(tried writing a new value to Reg 0x16 to lower the vlotage, and it works)

Hi, Ryan,

Regarding the on-board actuators, do you have the same results when you use them and run the auto calibration?

Could you provide the schematic of your LRA sample? Have you glued it to a fixed mass > 100g when running the auto calibration?

Best regards,
Luis Fernando Rodríguez S.

Hi Luis,

I don't have a on-board actuator with the board. But "Run Auto Calibration" does Passed when I use LRA from other manufactures.

This is the LRA that the test board is having trouble with: http://www.mpluskr.com/?page_id=200

To go back to my question......do the driver IC / test board / software allow me to set a fixed frequency?

If yes, please let me know the procedure. Or indicate which step is incorrect on the above procedure.

Thank you!