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"|Issue Date | + | ! 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" |Issue Date |
| − | !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"| | + | | 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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==Console interface == | ==Console interface == | ||
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=== Description === | === Description === | ||
| − | The Console interface available on the Evaluation Kit at the connector | + | 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). | |
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{| class="wikitable" | {| class="wikitable" | ||
| − | ! latexfontsize="scriptsize"| Pin# | + | ! latexfontsize="scriptsize" | Pin# |
| − | ! latexfontsize="scriptsize"| SOM Pin# | + | ! latexfontsize="scriptsize" | SOM Pin# |
| − | ! latexfontsize="scriptsize"| Pin name | + | ! latexfontsize="scriptsize" | Pin name |
| − | ! latexfontsize="scriptsize"| Pin function | + | ! latexfontsize="scriptsize" | Pin function |
| − | ! latexfontsize="scriptsize"| Pin Notes | + | ! latexfontsize="scriptsize" | Pin Notes |
|- | |- | ||
| − | |1 | + | |1 |
| − | | | + | | J18.87 |
| N.A. | | N.A. | ||
| − | | | + | | Transmit line |
| − | | | + | | |
|- | |- | ||
| − | | | + | | 2 |
| − | | | + | | J18.89 |
| RS232_RX | | RS232_RX | ||
| Receive line | | Receive line | ||
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|- | |- | ||
| 3 | | 3 | ||
| − | | | + | | - |
| − | | | + | | 3V3_CB |
| − | | | + | | Power output |
| − | | | + | | This pin can be used to power an RS232 transceiver |
|- | |- | ||
| − | | | + | | 4 |
| - | | - | ||
| DGND | | DGND | ||
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To connect to the debug serial port: | To connect to the debug serial port: | ||
| − | # connect the | + | # 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 | # start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1 | ||
Revision as of 14:04, 31 December 2020
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Dec 2020 | First Release | |
Console interface[edit | edit source]
TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console
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:{Template:Nome-som-EVB-Console-connector.png|thumb|center|500px|Console connector]]
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1 | J18.87 | N.A. | Transmit line | |
| 2 | J18.89 | RS232_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]
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 UART to USB transceiver to J2 connector
- start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
