資料來源:https://www.seeedstudio.com/Radxa-Rock2-Square-Model-A-p-2654.html
The Rock2 series is made of the SoM and the base board. The reason why we make it SoM plus baseboard is answered in the Rock2 SoM compatibility thread at radxa talk.
Rock2 SoM (left) and the Rock2 Square baseboard(right).
The initial idea for us to make the SoM is that there are many requests from the customs that they want something similar to rock pro/lite but with some modification or extra/less components. We make the SoM because the baseboard is easier to modify and less time to make the PCB and verify the system. Also, SoM is actually easier to manufacture because it has less ports, thus will save cost for the customers. Your question is actually the seamless upgrade for the SoM. We did not consider that (Actually we did but a standard interface will drop some features of the CPU - rk3288, so we choose a custom interface with all features of rk3288). So the answer is no. We can make sure that the case can be compatible but not the base board.
On the software side, the both the Rock2 square and full support android 4.4 and soon android 5.0. The factory firmware is android 4.4 since the Rock2 stable enough for daily usage. Andriod 5.0 is already running with full features on Rock2 series, we just need more optimization for the audio/video etc. For the Linux distributions on Rock2 series, we customize a Linux distribution called Rabian base on Debian 8(jessie). Why customize distribution? Because nowadays there is still no standard ARM distribution. We want to provide easier updates for all users. We don't want to flash a new image just for a new feature of the kernel. So we setup Radxa package repository and provide the packages instead of images for upgrading. Why Debian? Because Debian is stable, has longer life cycle and support time. It's better for us to polish our own distribution. Current status of Rabian is we have every ports working as well as Wi-Fi/BT, hardware decoding and 3d acceleration is not implemented yet.
Features
The Rock2 SoM have the following spec:
The Rock2 Square base board has the following spec:
Part List
Documents
該ROCK2系列是由SOM和基座板。為什麼我們讓SOM系統加上踢腳線原因是在radxa傾訴ROCK2 SOM系統兼容性線程回答。
ROCK2 SOM系統(左)和ROCK2廣場底板(右)。
我們進行本次高官會的最初的想法是,有距離,他們希望類似的岩石PRO /精簡版,但與一些修改或額外/元件少的東西很多習俗請求。我們使SOM系統,因為基板是更容易修改和更短的時間,使PCB和驗證系統。此外,SOM系統實際上是更容易製造,因為它具有較少的端口,從而節省成本,為客戶。你的問題實際上是SOM的無縫升級。我們並不認為(事實上,我們沒有,但一個標準的接口將丟棄CPU的一些特點 - RK3288,所以我們選擇與RK3288的所有功能的自定義接口)。因此,答案是否定的。我們可以確保的情況下可以兼容,但不是基板。
在軟件方面,無論是ROCK2廣場和全力支持Android 4.4系統,並很快的是Android 5.0。出廠固件Android 4.4系統,因為ROCK2日常使用足夠穩定。 Andriod的5.0已經與ROCK2系列全功能運行,我們只需要為音頻/視頻等有關ROCK2系列的Linux發行版更多的優化,我們定制一個Linux發行版在Debian 8(傑西)Rabian基地。為什麼要定制分配?因為現在仍然沒有標準的ARM分佈。我們希望為所有用戶更易於更新。我們不希望換一個新形象只為內核的新功能。因此,我們設置Radxa包庫和升級提供的軟件包,而不是圖像。為什麼Debian的?因為Debian是穩定的,具有較長的生命週期和支持時間。這是更好地為我們擦亮自己的分佈。 Rabian的當前狀態是我們每一個端口工作,以及與Wi-Fi / BT,硬件解碼和3D加速還沒有實現。
特徵
該ROCK2 SOM系統具有以下規格:
該ROCK2方形底座板具有以下規格:
零件清單
文件