GSM Shop GSM Shop

Welcome to the GSM-Forum forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features.
Only registered members may post questions, contact other members or search our database of over 8 million posts.

Registration is fast, simple and absolutely free so please - Click to REGISTER!

If you have any problems with the registration process or your account login, please contact contact us .

Go Back   GSM-Forum > Product Support Sections > Hard/Software Products (official support) > Easy-Jtag / Easy-Jtag Plus

Easy-Jtag / Easy-Jtag Plus The official support section. You can ask here your question and get answer regarding using Easy-Jtag / Easy-Jtag Plus.

LinkBack Thread Tools Display Modes
Old 03-11-2023, 18:56   #1 (permalink)
Freak Poster
Join Date: Feb 2014
Posts: 185
Member: 2127758
Status: Offline
Thanks Meter: 26
Emmc as SBC disk device

today I've waste some hours trying to use a Samsung/Toshiba eMMC as memory disk for a Single Board Computer (Orangepi Zero) without any success.

Many people, online, seems to be able to read an eMMC with a SD-adapter, and many SBC's vendors provide a eMMC adapter to connect an eMMC to the micro-sd slot of the SBC.

I've got some time to waste, so today I've erased two eMMC from different vendors, and then flashed a linux image compatible with the SBC using the EasyJtag Tool.

After that, following that scheme

I've connect the eMMC to the SBC after i've removed the micro-sd slot.

Just two think to notice:
- I've make a jumper on the "presence" pin so the SBC can think that there's a micro-sd on the slot reader
- I've connected both Vcc and Vccq to the same voltage: 3.3v

Why? Because I've not found sufficient information about Vccq, and i was thinking that Vccq was related to IO voltage.

The problem? Seems that the SBC does not want to boot from eMMC, it does nothing...

During all the process I've removed the eMMC and soldered back the sd slot to check if the SBC are still working, and I've also read the eMMC with the tool many time during all the process to check if the eMMC was still alive.

After many try, I've removed the eMMC from the SBC and I've created an adapter to connect the E-Socket to the SBC easily, also to swap the eMMC from the Box to the SMC.

I was not able to get it booting, I'm missing some option flashing the img linux file?
I've ho set the partition bootable in some way?

Any help will be very accepted, even if i know that this is non a "standard" use for that Box, and maybe just, really, a waste of time
  Reply With Quote
Old 03-11-2023, 19:45   #2 (permalink)
Freak Poster
Join Date: Feb 2014
Posts: 185
Member: 2127758
Status: Offline
Thanks Meter: 26
First link was not working, solved here:
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT +1. The time now is 04:00.

Powered by Searchlight © 2023 Axivo Inc.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2023 DragonByte Technologies Ltd.
- GSM Hosting Ltd. - 1999-2022 -
Page generated in 0.10534 seconds with 8 queries