Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/micro SD"
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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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<section end=History/> | <section end=History/> | ||
| + | __FORCETOC__ | ||
<section begin=Body/> | <section begin=Body/> | ||
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==micro SD interface == | ==micro SD interface == | ||
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=== Description === | === Description === | ||
| − | The micro SD interface available on the Evaluation Kit at the connector | + | The micro SD interface available on the Evaluation Kit at the connector J26. |
| − | + | J26 is a Micro-SD card header. This interface is connected to the USDHC1 controller of the i.MX6 CPU. | |
| + | |||
| + | [[File:AXEL Lite-EVB-microSD-connector.png|thumb|center| 500px|microSD connector]] | ||
===Signals === | ===Signals === | ||
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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 || J10.79 || SD_DAT2 || Data 2|| | ||
| + | |- | ||
| + | | 2 || J10.81 || SD_DAT3 || Data 3|| | ||
| + | |- | ||
| + | | 3 || J10.83 || SD_CMD || CMD|| | ||
| + | |- | ||
| + | | 4 || - || 3V3 || +3.3 V|| | ||
| + | |- | ||
| + | | 5 || J10.85 || SD_CLK || Clock|| | ||
|- | |- | ||
| − | | | + | | 6, 12 || - || DGND || Ground|| |
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| − | | | + | | 7 || J10.75 || SD_DAT0 || Data 0|| |
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|- | |- | ||
| − | | | + | | 8 || J10.77 || SD_DAT1 || Data 1|| |
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|- | |- | ||
| − | | 9 | + | | 9, 10, 11 || - || SD_SHIELD || Shield|| |
| − | | - | + | |- |
| − | | | + | | 13 || J10.177 || EIM_D19 || Card detect|| |
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|} | |} | ||
=== Device mapping === | === Device mapping === | ||
| − | + | The microSD card is mapped to <code>/dev/mmcblk0</code>. The available partitions are shown as <code>/dev/mmcblk0p1</code>, <code>/dev/mmcblk0p2</code>, etc. | |
=== Device usage === | === Device usage === | ||
| − | + | The device can be mounted/accessed as a standard block device in Linux. | |
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---- | ---- | ||
[[Category:AXEL Lite]] | [[Category:AXEL Lite]] | ||
Latest revision as of 08:23, 9 January 2024
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| History | |||
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| Issue Date | Notes | ||
| 2021/09/27 | New documentation layout | ||
micro SD interface[edit | edit source]
Description[edit | edit source]
The micro SD interface available on the Evaluation Kit at the connector J26.
J26 is a Micro-SD card header. This interface is connected to the USDHC1 controller of the i.MX6 CPU.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1 | J10.79 | SD_DAT2 | Data 2 | |
| 2 | J10.81 | SD_DAT3 | Data 3 | |
| 3 | J10.83 | SD_CMD | CMD | |
| 4 | - | 3V3 | +3.3 V | |
| 5 | J10.85 | SD_CLK | Clock | |
| 6, 12 | - | DGND | Ground | |
| 7 | J10.75 | SD_DAT0 | Data 0 | |
| 8 | J10.77 | SD_DAT1 | Data 1 | |
| 9, 10, 11 | - | SD_SHIELD | Shield | |
| 13 | J10.177 | EIM_D19 | Card detect |
Device mapping[edit | edit source]
The microSD card is mapped to /dev/mmcblk0. The available partitions are shown as /dev/mmcblk0p1, /dev/mmcblk0p2, etc.
Device usage[edit | edit source]
The device can be mounted/accessed as a standard block device in Linux.
