3-Axis Accelerometer (LIS302DL)

[Gusse]

Can you share your schematic and code?

I'm not so familiar with SPI interface, but could you change LIS302DL to I2C mode (pin7, CS tight to VCC and pin12 GND) and try to read registers then? Then pull-ups are needed (4k7 for both CLK and SDA).

-Gusse-

[alexpanrui]

sry, i forgot to mention that the sensor was working before. I read the datasheet again. i noticed that the absolute max rating for Vin (input voltage for all control pins) is from -0.3v to VDD_IO+0.3 v. I hooked up VDD-IO to 3v. so based on the max rating, the input voltage should be no more than 3.3v. But the output high voltage from PIC is ard 4.5v. Could this be the reason that the sensor stops working?

[Gusse]

It might be that device get damaged if Vdd_IO is too much higher than Vdd (spec says Vdd + 0.1V). On the otherhand, I have used 5V (4.95V) for both Vdd and Vdd_IO without any problems or damages, PIC is also running on 5V. Absolute maximum voltage for LIS302DL is +6V (both Vdd and Vdd_IO).

Can you measure how much current accelerometer is taking from supply?

-Gusse-