GSM Shop GSM Shop
GSM-Forum  

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

Reply
 
LinkBack Thread Tools Display Modes
Old 06-10-2019, 09:11   #1 (permalink)
No Life Poster
 
Deni's's Avatar
 
Join Date: Aug 2012
Location: Bali-Indonesia
Posts: 2,523
Member: 1800628
Status: Online
Thanks Meter: 728
CMD reason time out


i want to repair G900F but always get error like this..


Z3X EasyJtag Software ver. 3.6.1.0
Loading eMMC GEN1 Firmware... IO: 1850 mV
Box S/N: 0F01300C22E581EB, ,FW Ver.: 01.63
Warning: CMD Pullup Level (237 mV) too low , check cables etc.!
CMD Active Level:742 mV
Box IO Level:1850 mV
CLK Rate:21000 kHz
Bus Width:1bit,SDR
HiPower mode is ON!
Can't init device, Reason: CMD Timeout Error
Done.


  Reply With Quote
Old 06-10-2019, 17:23   #2 (permalink)
Junior Member
 
Join Date: Feb 2010
Location: lalitpur up
Posts: 31
Member: 1246696
Status: Offline
Sonork: 000000000
Thanks Meter: 4
If CMD Pullup Level is underestimated ( 500-800mV ), it usually means that there are no PullUp resistors between the CMD line and VCCQ in the eMMC connection interface, and this means that errors of detection or operation with eMMC are possible.
If CMD Pullup Level is greatly underestimated ( 100-300mV ), it most likely means that the CMD line is shorted to ground.
  Reply With Quote
The Following User Says Thank You to umar342 For This Useful Post:
Old 06-10-2019, 17:44   #3 (permalink)
Junior Member
 
Join Date: Feb 2010
Location: lalitpur up
Posts: 31
Member: 1246696
Status: Offline
Sonork: 000000000
Thanks Meter: 4
Quote:
Originally Posted by umar342 View Post
If CMD Pullup Level is underestimated ( 500-800mV ), it usually means that there are no PullUp resistors between the CMD line and VCCQ in the eMMC connection interface, and this means that errors of detection or operation with eMMC are possible.
If CMD Pullup Level is greatly underestimated ( 100-300mV ), it most likely means that the CMD line is shorted to ground.
CMD Pullup Level: - The signal level that the chip gives out.
  Reply With Quote
Reply

Bookmarks

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 03:24.



Powered by Searchlight © 2019 Axivo Inc.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
- GSM Hosting Ltd. - 1999-2017 -
Page generated in 0.17806 seconds with 7 queries

SEO by vBSEO