How to use Trice without UART

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Because the trice tool needs only to receive, a single target UART-TX pin will do. But it is also possible to use a GPIO-Pin for Trice messages without occupying a UART resource.

• This slow path is usable because a Trice needs only few bytes for transmission.

• You can transmit each basic trice (4 or 8 bytes) as bare message over one pin:

  

• The 2 images are taken from https://circuitcellar.com/cc-blog/a-trace-tool-for-embedded-systems/. See there for more information.
• As Trice dongle you can use any spare MCU board with an UART together with an FTDI USB converter.
  • This allowes also any other data path - method does’nt matter:
    UART,
    I²C,
    SPI,
    GPIO,
    CAN,
    LIN, …
• RTT is also a possible path to use - see Segger RTT for options.