📄️ Introduction
Version 1.0
📄️ Boot the Mars CM
Mars CM has two versions based on storage, one is Mars CM with eMMC storage, and the other is Mars CM Lite without eMMC storage. The Lite version can only be accessed through SD card on the base-board. If the base-board you are using does not have a SD card interface, you cannot use the Lite version. In addition, the eMMC version shares the hardware interface with the SD card, so they cannot be used at the same time. In other words, when using the eMMC version of Mars CM, you cannot insert a storage card into the SD card slot on the base-board.
📄️ Setting Up
Use Serial Console
📄️ Extend Partition
The default capacity of the official Debian image root file system is about 4GB. When installing software or other data increases, there will be insufficient space. We can expand the file system to the full capacity of the SD card or eMMC.
📄️ Bootloader Update
Whether Mars CM starts the system through the SD card or the eMMC module, it must be started through the Bootloader boot program. This boot program is stored in an SPI Flash on the board and contains two parts: SPL and U-Boot.
📄️ Hardware Docs
Hardware Design
📄️ Update EEPROM
Mars CM uses EEPROM to record SN and store DDR and eMMC information. Generally speaking, you do not need to modify the data in the eeprom.
🗃️ 🧰 Resources
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