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    • Connect a UART/RS232/IrDA to a Trizeps

    Owned by Anu Selvaraj (Deactivated)
    Last updated: 20. Mar 2024 by Michael Schieren
    2 min read

    Applies to: Trizeps IV(M), Trizeps IV WL, Trizeps V, Trizeps VI.
    See also: UART Serial Port & IrDA.

    Schematic

    FFUART (COM1) to RS232

    This is a sample on how to connect COM1 to a DSUB9-RS232 connector. Like almost all of the Trizeps-signals, the COM1-pins are only +3V3-tolerant.

    BTUART (COM2) to RS232

    This is a sample on how to connect COM2 to a 10pol. header. This 10pol-header allows easy connection to a RS232-SUBD connector. Of course you may connect the UART-ports with +3V3-compatible hardware directly, i.e. serial-BT-modules or printers.

    STUART (COM3) to IrDA

    This is a sample on how to connect COM3 to an IrDA transceiver. On Trizeps4 and Trizeps5 only COM3 can be configured as IrDA. Of course it can be configured as normal UART too.

    Signals

    FFUART (COM1)

    FFUART (COM1)

    Signal-Name

    SODIMM-Pin

    Remark

    COM1_DTR

    23

    Data Terminal Ready

    COM1_CTS

    25

    Clear To Send

    COM1_RTS

    27

    Ready To Send

    COM1_DSR

    29

    Data Set Ready

    COM1_DCD

    31

    Data Carrier Detect

    COM1_RXD

    33

    Receive Data

    COM1_TXD

    35

    Transmit Data

    COM1_RI

    37

    Ring Indicator

    BTUART (COM2)

    BTUART (COM2)

    Signal-Name

    SODIMM-Pin

    Remark

    COM2_CTS

    32

    Clear To Send

    COM2_RTS

    34

    Ready To Send

    COM2_RXD

    36

    Receive Data

    COM2_TXD

    38

    Transmit Data

    STUART (COM3)

    STUART (COM3)

    Signal-Name

    SODIMM-Pin

    Remark

    COM3_RXD

    19

    Receive Data

    COM3_TXD

    21

    Transmit Data