SensorsのトピックRe: PCT2202 testing

PCT2202 testing

rolfkahrshansen — Tue, 01 Mar 2016 14:29:37 GMT

I have some PCT2202 that I want to test. Your supplier sold me an OM13257 board. As it was impossible to solder the device to the board, we sent it to a manufacturer who mounted the chip.

We connected to board (A0 to GND, VDD to 1.8 V (not 3.3V), GND and SCL,SDA) - but no response from the device. I assume that OM13257 provides the pull-ups.

Is it possible to get some chips that are mounted on PCB or FPC? I really need to test the sensor before we start ordering hundreds or thousands!

Regards,

Rolf

Re: PCT2202 testing

TomasVaverka — Wed, 02 Mar 2016 14:23:28 GMT

Hi Rolf,

Thanks for your interest in the PCT2202.

It seems that your wiring is correct, yes there are 10k pull-up resistors on the board as shown in the schematic on page 7 of the UM10757.

Do you have a logic analyzer or an oscilloscope to see what is going on the I²C bus?

I am not aware of any breakout boards with the PCT2202, but let me double check it with our apps/marketing team.

Regards,

Tomas

Re: PCT2202 testing

rolfkahrshansen — Wed, 02 Mar 2016 15:00:47 GMT

I have an oscilloscope and will look into that over the week-end.

Good if you can let me know of a breakout board (there must be one somewhere as I am certain that the device has been tested extensively!)

Rolf

Rolf Kahrs Hansen, Dr.Scient

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