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MPL115A1 DOUT not work

Question asked by Dhaval Patel on May 20, 2016
Latest reply on May 25, 2016 by Tomas Vaverka

I have connected MPL115A1 as per data sheet and not using shutdown option so it is connected VDD.

I am trying to read coefficient and ADC data via SPI bus.

I am sending following packets:

start conversion  and wait for 3ms.

Read Pressure ADC (MSB and LSB)

Read Temp ADC (MSB and LSB)

Read A0 (MSB and LSB)

Read B1 (MSB and LSB)

Read B2 (MSB and LSB)

Read C12 (MSB and LSB)

 

I have attached screen shot of SCLK, CS, DOUT and DIN lines

Surprisingly I can't see any data on DOUT.

 

Also, I have tried to disconnect DOUT from rest of ckt and probed on  MPL115A1 Pin 6. Though I can't see any data coming out. I have tried another IC incase first one is not working!! No improvement.

Any help?

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