Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/USB ports"
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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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==USB ports == | ==USB ports == | ||
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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 || J10.188 || USB_HOST_VBUS || VBUS || | | 1 || J10.188 || USB_HOST_VBUS || VBUS || | ||
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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 |
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| 6, 7, 8, 9 || - || USB_OTG_SH Shield || || | | 6, 7, 8, 9 || - || USB_OTG_SH Shield || || | ||
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| − | === Device | + | === 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. | ||
Revision as of 09:23, 7 September 2021
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | First DESK release | |
USB ports[edit | edit source]
Description[edit | edit source]
SBCX provides two USB ports, one Host and one OTG:
- J17 is a standard USB Host 2.0 Type A connector
- J18 is a micro-AB type receptacle for a USB OTG connection: this interface can operate in Host mode and Device (peripheral) mode
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 OTG[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 | |
| 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 OTG feature can be easily tested using the Mass Storage Gadget driver.
