Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/Console"
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! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History | ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History | ||
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! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes | ||
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| style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |First Release | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |First Release | ||
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| + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |Update console information | ||
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| − | [[File: | + | [[File:ETRA-EVK-Console-connector.png|thumb|center|300px|Console connector]] |
===Signals === | ===Signals === | ||
| Line 39: | Line 39: | ||
|- | |- | ||
|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 === | ||
| − | USART1 is mapped to <code>/dev/ | + | |
| + | USART1 is mapped to <code>/dev/ttySTM0</code> device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel. | ||
=== Device usage === | === Device usage === | ||
Latest revision as of 10:06, 6 September 2023
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| History | |||
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| Issue Date | Notes | ||
| First Release | |||
| 2023/08/30 | Update console information | ||
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).
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]
USART1 is mapped to /dev/ttySTM0 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
