ORCA SBC/Interfaces and Connectors/Console
|1.0.0||Dec 2021||First release|
Console interface[edit | edit source]
Description[edit | edit source]
The Console interface is available on the Evaluation Kit at the connector J35.
J35 is a 4 pin (4x1x2.54mm) header connector for the two-wires UART2 port, used for debug purposes (bootloader and operating system serial console).
Signals[edit | edit source]
The following table describes the interface signals:
|Pin#||SOM Pin#||Pin name||Pin function||Pin Notes|
|2||J15.248||UART2_RXD||Receive line||10K pull-up to 3V3_CB|
|3||-||3V3_CB||Power output for transceiver supply||BOARD_PGOOD driven rail|
Device mapping[edit | edit source]
UART2 is mapped to
/dev/ttymxc1 device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel.
Device usage[edit | edit source]
To connect to the debug serial port:
- connect an UART transceiver (eg: TTL-232RGVIP-WE) to J35 and to a workstation
- leave J35.3 unconnected if the transceiver is self powered
- start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,8N1