3 Replies Latest reply on Feb 14, 2017 9:58 AM by Intel Corporation

    SPI through level-shifter

    mike.aski

      Hi,

       

      We have developed a mockup based on the Arduino board to validate some peripherals (ePaper & LoRaWAN modem). All went ok, with matching signals current for both devices (3.3V).

       

      Now, we are being integrating the solution with Breadboards, so the signals have dropped down to 1.8V so we need level-shifters.

      We did a first try with Adafruit's bi-directional voltage-level translator TXB0104, but only UART is working. SPI does not seems to detect anything.

       

      Any advice or idea for SPI LLC? Thanks a lot in advance...