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tdk-invn-oss / ultrasonic.arduino.ICUX0201

Arduino Driver for TDK InvenSense consumer ultrasonic sensor family ICUX0201
https://invensense.tdk.com/smartsonic
BSD 3-Clause "New" or "Revised" License
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J5 - MISO is fluctuating around ~1V #7

Closed vmanoj1996 closed 1 week ago

vmanoj1996 commented 1 week ago

I am debugging an issue with the MISO line, exposed via J5 connector on TOF EVK board.

I have modified this Arduino library to work with 4 ICU30201 and wired them up. For some reason, the teensy 4.1 board gets stuck during ICU.begin() at the first SPI transmission (chdrv_prog_ping).

image

I believe this issue is because of MISO which is fluctuating between 3.3 and 0 as shown above.

Is schematic available for ToF EVK board? Is so, I can check if there is some component like a voltage buffer is between the sensor's MISO line and J5.

For some reason, the eval board and 4 sensors works fine with the Windows ICUX0201 Evaluation Platform App.

vmanoj1996 commented 1 week ago

The observation is likely because of my logic analyzer's low rate. Closing this issue.