Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/Console"
(Tag: Visual edit) |
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| − | [[File: | + | [[File:ETRA-EVB-Console-connector.png|thumb|center|500px|Console connector]] |
===Signals === | ===Signals === | ||
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|- | |- | ||
|1 | |1 | ||
| − | | J18. | + | | J18.187 |
| − | | | + | | UART TX |
| Transmit line | | Transmit line | ||
| | | | ||
|- | |- | ||
| 2 | | 2 | ||
| − | | J18. | + | | J18.189 |
| − | | | + | | UART RX |
| Receive line | | Receive line | ||
| | | | ||
| Line 64: | Line 64: | ||
=== Device mapping === | === Device mapping === | ||
| + | {| style="color:#000000; border:solid 2px #73B2C7; background-color:#ededed;font-size:95%; vertical-align:middle;" | ||
| + | | [[File:TBD.png|30px]] | ||
| + | | '''Section not completed yet''' | ||
| + | |} | ||
| + | |||
USART1 is mapped to <code>/dev/ttyxxx</code> device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel. | USART1 is mapped to <code>/dev/ttyxxx</code> device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel. | ||
Revision as of 11:14, 11 January 2021
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Dec 2020 | First Release | |
Console interface[edit | edit source]
Description[edit | edit source]
The Console interface available on the Evaluation Kit at the connector J2.
J2 is a 4 pin (4x1x2.54mm) header connector for the two-wires USART1 port, used for debug purposes (bootloader and operating system serial console).
File:ETRA-EVB-Console-connector.png
Console connector
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1 | J18.187 | UART TX | Transmit line | |
| 2 | J18.189 | UART RX | Receive line | |
| 3 | - | 3V3_CB | Power output | This pin can be used to power an RS232 transceiver |
| 4 | - | DGND | Ground |
Device mapping[edit | edit source]
|
Section not completed yet |
USART1 is mapped to /dev/ttyxxx 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 UART to USB transceiver to J2 connector
- start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
