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Setting the eFuses for MicroSOM and Hummingboard
If an end-user orders a SOM together with a HummingBoard carrier a SOM together with a HummingBoard carrier board, the shipping department is notified that the boot configuration needs to be set on the SOMthe SOM. A SOM which does not undergo this process (for example, if one is ordered by itself) will need to have an appropriate configuration completed to tell the processor where to look for the start of the boot process.
This tutorial provides the information on blowing the i.MX6 eFuses on the SoC integrated on the SOM in the SOM in order to boot from the Micro-SD cart.
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Please note that this operation is irreversible. |
USB host to host cable preparation
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The MFGTool provided by Freescale requires a Windows based PC, prefereably with an intel based chipset. (Freescale’s detection routines in the MFGTool can be picky when it comes to chipsets.)
Download the SolidRun-MicroSOM-Fusing.zip archive and unzip it to a known location. (Download from IMX6 Som Documentsi.MX6 SOM Hardware User Manual page)
Choose the right directory according to the i.MX6 device (either solo/dual lite OR dual/quad).
Double click on the mfgtool2.exe
Connect one side of the USB host to host cable to your PC and other to the upper USB port of CuBox-i or HummingBoard carrier with the intended SOM to configure connected.
Power up the CuBox-i / HummingBoard
On the Windows mfgtool2.exe you would notice a second slider that indicates that u-boot is being downloaded
Done. If you are using CuBox-i as a carrier for blowing fuses then the front LED will blink 3 times, the number of fuses that where blown.
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