Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/USB ports"

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==USB ports ==
 
==USB ports ==
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=== Description  ===
 
=== Description  ===
  
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SBCX provides two USB ports, one Host and one OTG:
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SBCX provides two USB ports, one Host and one device:
  
 
* J17 is a standard USB Host 2.0 Type A connector
 
* J17 is a standard USB Host 2.0 Type A connector
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* J18 is a micro-AB type receptacle for a USB OTG connection: this interface can operate in Host mode and Device (peripheral) mode
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 +
[[File:AXEL Lite-EVB-USB Host-connector.png|thumb|center| 500px|USB Host connector]]
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* J18 is a micro-AB type receptacle for a USB device connection: this interface can operate in Device (peripheral) mode and - optionally - in Host mode
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 +
 
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[[File:AXEL Lite-EVB-USB OTG-connector.png|thumb|center| 500px|USB device connector]]
  
 
===Signals ===
 
===Signals ===
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{| class="wikitable"  
 
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! latexfontsize="scriptsize"| Pin#
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| 1 || J10.188 || USB_HOST_VBUS || VBUS ||  
 
| 1 || J10.188 || USB_HOST_VBUS || VBUS ||  
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==== USB OTG ====
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==== USB Device ====
  
 
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| 6, 7, 8, 9 || - || USB_OTG_SH Shield || ||  
 
| 6, 7, 8, 9 || - || USB_OTG_SH Shield || ||  
 
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|-
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| 1 || J10.186 || USB_OTG_VBUS || VBUS ||  
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| 1 || J10.186 || USB_OTG_VBUS || VBUS || This pin can be powered (for Host mode) '''(*)'''
 
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| 2 || J10.196 || USB_OTG_DN || USB OTG Data - ||  
 
| 2 || J10.196 || USB_OTG_DN || USB OTG Data - ||  
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=== Device mapping ===
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=== Device usage ===
 
The USB Host port can be used under Linux for connecting USB peripheral devices: the related peripheral driver has to be integrated into the Linux kernel.
 
The USB Host port can be used under Linux for connecting USB peripheral devices: the related peripheral driver has to be integrated into the Linux kernel.
  
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The USB OTG feature can be easily tested using the Mass Storage Gadget driver.
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The USB Device feature can be easily tested using the Mass Storage Gadget driver.  
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'''(*)''' This port can operate in Host mode using a proper BOM mount option. See the [[AXEL_Lite_SOM/AXEL_Lite_Evaluation_Kit/Electrical_and_Mechanical_Documents/Schematics | EVK schematics]] for more info
  
 
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[[Category:AXEL Lite]]
 
[[Category:AXEL Lite]]

Latest revision as of 08:24, 9 January 2024

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History
Issue Date Notes

2021/09/07

First EVK release
2022/09/01 Correct second USB port mode description


USB ports[edit | edit source]

Description[edit | edit source]

SBCX provides two USB ports, one Host and one device:

  • J17 is a standard USB Host 2.0 Type A connector
USB Host connector


  • J18 is a micro-AB type receptacle for a USB device connection: this interface can operate in Device (peripheral) mode and - optionally - in Host mode


USB device connector

Signals[edit | edit source]

The following table describes the interface signals

USB Host[edit | edit source]

Pin# SOM Pin# Pin name Pin function Pin Notes
1 J10.188 USB_HOST_VBUS VBUS
2 J10.202 USB_HOST_DN USB Host Data -
3 J10.200 USB_HOST_DP USB Host Data +
4 - DGND Ground

USB Device[edit | edit source]

Pin# SOM Pin# Pin name Pin function Pin Notes
6, 7, 8, 9 - USB_OTG_SH Shield
1 J10.186 USB_OTG_VBUS VBUS This pin can be powered (for Host mode) (*)
2 J10.196 USB_OTG_DN USB OTG Data -
3 J10.198 USB_OTG_DP USB OTG Data +
4 J10.192 ENET_RX_ER USB OTG ID
5 - GND Ground

Device usage[edit | edit source]

The USB Host port can be used under Linux for connecting USB peripheral devices: the related peripheral driver has to be integrated into the Linux kernel.

The USB Device feature can be easily tested using the Mass Storage Gadget driver. (*) This port can operate in Host mode using a proper BOM mount option. See the EVK schematics for more info

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