Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/Console"
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<section end=History/> | <section end=History/> | ||
| + | __FORCETOC__ | ||
<section begin=Body/> | <section begin=Body/> | ||
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==Console interface == | ==Console interface == | ||
| − | + | === Description === | |
| − | |||
| − | + | The Console interface available on the Evaluation Kit at the connector J22. | |
| + | |||
| + | J22 is a 10 pin (5x2x2.54mm) header connector for the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial console). | ||
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| − | + | [[File:AXEL Lite-EVB-Console-connector.png|thumb|center| 500px|Console connector]] | |
===Signals === | ===Signals === | ||
| Line 53: | Line 44: | ||
|- | |- | ||
| 3 | | 3 | ||
| − | | | + | | J10.189 |
| RS232_RX | | RS232_RX | ||
| Receive line | | Receive line | ||
| Line 59: | Line 50: | ||
|- | |- | ||
| 3 | | 3 | ||
| − | | | + | | J10.187 |
| RS232_TX | | RS232_TX | ||
| Transmit line | | Transmit line | ||
Latest revision as of 08:22, 9 January 2024
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Console interface[edit | edit source]
Description[edit | edit source]
The Console interface available on the Evaluation Kit at the connector J22.
J22 is a 10 pin (5x2x2.54mm) header connector for the RS232 two-wires UART3 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 |
|---|---|---|---|---|
| 1,2,4,6,,7,8,10 | - | N.A. | N.C. | Not connected |
| 3 | J10.189 | RS232_RX | Receive line | |
| 3 | J10.187 | RS232_TX | Transmit line | |
| 9 | - | DGND | Ground |
Device mapping[edit | edit source]
UART3 is mapped to /dev/ttymxc2 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 the DB9 adapter bracket to the J22 connector on the SBCX board
- connect a serial cable between DB9 connector and PC COM port through a NULL-modem cable (not provided)
- start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
