How to view the contents? Blink software on the microSD card

• u-boot-hydrogen-02242010-520.bin is most probably the boot loader, using uBoot.
• uImage is the Linux kernel that is booted by uBoot.
• mmcinitrd.u-boot is the initrd (initial RAMdisk) file that's used as the rest of the operating system when the system boots. This is probably the file that would be most interesting to investigate. You'd need to figure out what method of compression (bzip2, gzip, etc.) was used to compress this file and decompress it. You'd likely then get an image of a filesystem, most likely some type of Linux filesystem such as CramFS or maybe even ext2/ext3. Then you'd need to use the Linux loopback mounter to mount the image on an existing mount point. At that point, you'd be able to look at the files and programs that make up this OS.

whoami said:

So while we're on this subject, all the SW for the linux micro is located on a micro SD card on the bottom side of the linux box. Its a standard FAT partition they boot the linux kernel off and two EXT2 partitions on the SD card. The second parition (EXT2) is the main root partition and the third partition is a backup for failed upgrades.

The UI is a web browser on port 8080, the backend software is written completely in Python. They do indeed run iptables to keep you out. But some simple mods and you can enable ssh.

The second board is the J1772 centric board that runs a PIC. The PIC controller code has been at 1.8 since I've gotten the Blink. They have not upgraded this firmware. The PIC code looks good and is very stable. The PIC signals over both serial/uart as well as 5 GPIOs. The GPIOs indeed differentiate the difference between charging and just plugged in. The most recent firmware fix of this was a complete joke. 5-10 minutes of software.

As Ingneer points out the whole EVSE is a complete joke. It looks like a garage shop build. The software is equally as garage shop.

We will just leave it at there will be firmware available soon that actually woks as well as display the correct info and puts the micro to sleep. Wow a novel concept!

While I am on the HW, the build is done so poorly with a significant amount of bypass caps and other current draining items. It really needs a complete redesign. For anyone who is considering purchasing a Blink. Just don't go there. For those of us who get the boat anchors for free, keep it for the 2 years then we'll take care of it.

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