Difference between revisions of "ETRA SOM/ETRA Evaluation Kit/Interfaces and Connectors/UARTs"

From DAVE Developer's Wiki
Jump to: navigation, search
 
(4 intermediate revisions by the same user not shown)
Line 3: Line 3:
 
! 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
 
|-  
 
|-  
−
! 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" |Version
 
 
! 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
 
|-
 
|-
−
| 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" |1.0.0
+
| 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" |{{oldid|12555|2021/01/14}}
−
| 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" |Dec 2020
 
 
| 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
 
|-
 
|-
 +
! 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" |2023/08/30
 +
! 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" |UARTs Linux device updated info
 
|-
 
|-
 
|}
 
|}
Line 86: Line 86:
  
 
=== 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'''
 
−
|}
 
−
 
  
−
USART3 is mapped to <code>/dev/ttyxxx</code> device in Linux.
+
USART3 is mapped to <code>/dev/ttySTM1</code> device in Linux.
  
−
UART8 is mapped to <code>/dev/ttyxxx</code> device in Linux.
+
UART8 is mapped to <code>/dev/ttySTM2</code> device in Linux.
  
 
=== Device usage ===
 
=== Device usage ===

Latest revision as of 16:12, 6 September 2023

HOME SOMs SBCs ToloMEO Embedded Assistant Sale-tag.pngGET A QUOTE Customer-service.pngONLINE HELPDESK
Roadmap IoT Services ML/AI services Embedded Design Services
History
Issue Date Notes

2021/01/14

First Release
2023/08/30 UARTs Linux device updated info


UARTs interface[edit | edit source]

Description[edit | edit source]

The UART interfaces are available on the Evaluation Kit at the connectors J9 and J10.

J9 and J10 are 3 pin terminal blocks 5.0mm pitch respectively for USART3 and UART8. Can be independently used as RS232 or RS485 based on Part Number composition.


UARTs connector

Signals[edit | edit source]

The following table describes the interface signals:

J9[edit | edit source]

Pin# SOM Pin# RS232 RS485 Pin Notes
1 J18.89 USART3_TX RS485_A
2 J18.91 USART3_RX RS485_B
3 - Ground Ground

J10[edit | edit source]

Pin# SOM Pin# RS232 RS485 Pin Notes
1 J18.191 UART8_TX RS485_A
2 J18.193 UART8_RX RS485_B
3 - Ground Ground

Device mapping[edit | edit source]

USART3 is mapped to /dev/ttySTM1 device in Linux.

UART8 is mapped to /dev/ttySTM2 device in Linux.

Device usage[edit | edit source]

Fix the signal cables to the terminal with a small flat screwdriver.

HOME SOMs SBCs ToloMEO Embedded Assistant Sale-tag.pngGET A QUOTE Customer-service.pngONLINE HELPDESK
Roadmap IoT Services ML/AI services Embedded Design Services
Retrieved from "https://wiki.dave.eu/index.php?title=ETRA_SOM/ETRA_Evaluation_Kit/Interfaces_and_Connectors/UARTs&oldid=18594"