~~tag> Amlogic A311D2 A311D2-N0D CPU revisions ~~

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====== VIM4 Versions ======

There are two versions: [[../]] and [[../#vim4-with-npu|New VIM4 with NPU]].

<WRAP important >
Only **V13A** and later versions include NPU.
</WRAP>

/*
{{:products:sbc:vim4:hardware:new-vim4-top-side.webp?400|}}

**VIM4:**

{{:products:sbc:vim4:hardware:vim4-top-side.webp?400|}}

*/

===== VIM4 Versions Differences Reference table  =====

^ SBC Name                                 ^ NPU      ^ Board version  ^ Top Side                                   ^ CPU Package                                  ^  CPU ID Label    ^ CPU Revision  ^ ISP                                               ^ [[#identify-by-cpu-serial-number-software-way|CPU Serial Number]]  ^
| [[../]]                                  | no       | V12            | {{../hardware/vim4-top-side.webp?40}}      | {{vim4-cpu-label.png?40|A311D2}}          | ''A311D2''       | B             |                                                   | **360b**...                                                        |
| [[../#vim4-with-npu|New VIM4 with NPU]]  | 3.2TOPS  | from **V13A**  | {{../hardware/new-vim4-top-side.webp?40}}  | {{vim4-new-cpu-label.png?40|A311D2-N0D}}  | ''A311D2-N0D''  | C             | [[../add-ons/new-vim4-mipi-camera|new ISP core]]  | **360c**...                                                        |


/*
===== Identify Version =====

There are two ways to identify the version of your VIM4.

*/

===== Identify by CPU Screen Printing =====

CPU has a CPU-ID label on the top center side, maybe need to remove the heatsink if it is installed.

^ SBC                                      ^ CPU-ID Label  ^
| VIM4                                     | A311D2        |
| [[../#vim4-with-npu|New VIM4 with NPU]]  | A311D2-N0D    |


===== Software-way identification =====

Going into Linux-shell and type 


```shell By CPU Serial Number
grep -ohm1 360[b\|c].* /proc/cpu*
```

```shell by CPU Revision
cat /sys/devices/soc0/revision
```
^ SBC                                      ^ CPU Serial Number                     ^ CPU Revision  ^
| VIM4                                     | 360**b**xxxxxxxxxxxxxxxxxxxxxxxxxxxx  | 36:b - 1:1    |
| [[../#vim4-with-npu|New VIM4 with NPU]]  | 360**c**xxxxxxxxxxxxxxxxxxxxxxxxxxxx  | 36:c - 1:2    |




/*
<tabbox Linux 5.4>

You can use command ''uname -r'' to get your kernel version, if your kernel version is ''5.4.xxx'' then you can use the command below to get the cpuid.

```shell
cat /proc/cpuinfo | grep Serial | awk '{print $3}'
```

<tabbox Linux 5.15>

You can use command ''uname -r'' to get your kernel version, if your kernel version is ''5.15.xxx'' then you can use the command below to get the cpuid.

```shell
cat /proc/cpu_chipid| grep Serial | awk '{print $2}'
```
</tabbox>


You can identify the version via different CPU ID as below:

  * 360bxxxxxxxxxxxxxxxxxxxxxxxxxxxx - If the serial starts with ''360b'' then it is **VIM4**
  * 360cxxxxxxxxxxxxxxxxxxxxxxxxxxxx - If the serial starts with ''360c'' then it is **New VIM4**

*/