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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-bluetoothBT-modules or printers.
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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.
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Signals
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) | ||
|---|---|---|
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) | ||
|---|---|---|
Signal-Name | SODIMM-Pin | Remark |
COM3_RXD | 19 | Receive Data |
COM3_TXD | 21 | Transmit Data |