direct eMMC connection failed. pinout wrong? - GSM-Forum

huzein · 04-25-2014, 12:47

I need some help to establish a connection to eMMC KMVYLOOOLM-B503.
i soldered directly some wires.
IMG_0195.jpg

I used this eMMC adapter from Multi-Com.
IMG_0194.jpg

When i try to connect eMMC via easyJTag i get this screen.

Quote:

Z3X EasyJtag Software ver. 1.1.0.1
Loading eMMC Addon Firmware...
Box S/N: xxx, ,FW Ver.: 01.49
Warning: CMD Pullup Level (30 mV) too low , check cables etc.!!!
CMD Active Level:216 mV
Can't init EMMC, Reason: CMD Timeout Error
===================================
Done.

what i do wrong? i hope somebody can help me.

thx & br

huzein · 04-26-2014, 12:17

can please somebody help me?!

nguyenhuu · 04-27-2014, 16:45

l thing adapter gpg not good

Hoayeu105 · 04-27-2014, 17:48

Quote:

Originally Posted by nguyenhuu

l thing adapter gpg not good

His adaptor is multicom.pl product

huzein · 04-27-2014, 17:52

with this adapter i could already establish eMMC connection when i soldered to pins on pcb. but also in this way i get very often this error message which i wrote in first post.

something can be wrong with my adapter? too short wires? what this can be?

a65333002 · 04-28-2014, 11:44

Quote:

Originally Posted by huzein

with this adapter i could already establish eMMC connection when i soldered to pins on pcb. but also in this way i get very often this error message which i wrote in first post.

something can be wrong with my adapter? too short wires? what this can be?

you put wrong the adapter
tienes que poner el adaptador al reves

huzein · 04-28-2014, 12:15

what you mean with this? really a very qualified answer.

Gesendet von meinem GT-I9100 mit Tapatalk

huzein · 04-28-2014, 12:47

Quote:

Originally Posted by a65333002

you put wrong the adapter
tienes que poner el adaptador al reves

oh i see what you mean. shame on me. i will try it this way. thanks for the hint.

huzein · 04-28-2014, 13:00

i have done now as said and now it seems to be good but CMD Timeout Error appeared.

Quote:

Z3X EasyJtag Software ver. 1.2.0.0
Loading eMMC Addon Firmware...
Box S/N: xxx, ,FW Ver.: 01.49
CMD Pullup Level:2650 mV
CMD Active Level:2732 mV
Can't init EMMC, Reason: CMD Timeout Error

What can be this problem?

br

namsss · 05-02-2014, 08:19

I though I/O speed too high , and the quality of the adapter .

NoName® · 05-02-2014, 10:36

Hi, check if all power domains connected together. I mean if chip have different points for VCC and VCCQ - they must connected together same - VSS points. I can give here photo how they are connected in adapter.

m1serwis · 05-02-2014, 11:22

I got same problem with multi-com.pl adapter emmc direct and i9300 can someone give here solution, my soldering is perfect and got same error like I see there, this is adapter problem or what ??

m1serwis · 05-02-2014, 11:22

sorry for double post

huzein · 05-03-2014, 22:21

Quote:

Originally Posted by NoName®

Hi, check if all power domains connected together. I mean if chip have different points for VCC and VCCQ - they must connected together same - VSS points. I can give here photo how they are connected in adapter.

please give a photo sir. this would help much i think.

br

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thyagu2k · 05-04-2014, 15:18

same problem

Done.
Z3X EasyJtag Software ver. 1.3.1.0
Loading eMMC Addon Firmware... IO: 1850 mV
Box S/N: xxxxxxxxxxxxxxx, ,FW Ver.: 01.49
Warning: CMD Pullup Level (1196 mV) too low , check cables etc.!!!
CMD Active Level:1619 mV
Can't init EMMC, Reason: CMD Timeout Error
===================================
Done.

04-26-2014, 12:17	#2 (permalink)
huzein No Life Poster Join Date: Nov 2006 Location: Germany Posts: 688 Member: 396421 Status: Offline Thanks Meter: 87	can please somebody help me?!

04-27-2014, 16:45	#3 (permalink)
nguyenhuu Freak Poster Join Date: May 2005 Location: hanoi.vietnam Posts: 292 Member: 142949 Status: Offline Thanks Meter: 71	l thing adapter gpg not good

04-27-2014, 17:52	#5 (permalink)
huzein No Life Poster Join Date: Nov 2006 Location: Germany Posts: 688 Member: 396421 Status: Offline Thanks Meter: 87	with this adapter i could already establish eMMC connection when i soldered to pins on pcb. but also in this way i get very often this error message which i wrote in first post. something can be wrong with my adapter? too short wires? what this can be?

04-28-2014, 12:15	#7 (permalink)
huzein No Life Poster Join Date: Nov 2006 Location: Germany Posts: 688 Member: 396421 Status: Offline Thanks Meter: 87	what you mean with this? really a very qualified answer. Gesendet von meinem GT-I9100 mit Tapatalk

05-02-2014, 08:19	#10 (permalink)
namsss Junior Member Join Date: Apr 2006 Location: Viet Nam Posts: 14 Member: 257372 Status: Offline Thanks Meter: 0	I though I/O speed too high , and the quality of the adapter .

05-02-2014, 10:36	#11 (permalink)
NoName® Product Supporter Join Date: Mar 2005 Location: China Posts: 3,338 Member: 129885 Status: Offline Sonork: 100:1603514 Thanks Meter: 6,202	Hi, check if all power domains connected together. I mean if chip have different points for VCC and VCCQ - they must connected together same - VSS points. I can give here photo how they are connected in adapter.

05-02-2014, 11:22	#12 (permalink)
m1serwis No Life Poster Join Date: Dec 2013 Location: Poland Posts: 656 Member: 2085623 Status: Offline Thanks Meter: 221	I got same problem with multi-com.pl adapter emmc direct and i9300 can someone give here solution, my soldering is perfect and got same error like I see there, this is adapter problem or what ??

05-02-2014, 11:22	#13 (permalink)
m1serwis No Life Poster Join Date: Dec 2013 Location: Poland Posts: 656 Member: 2085623 Status: Offline Thanks Meter: 221	sorry for double post

05-04-2014, 15:18	#15 (permalink)
thyagu2k Freak Poster Join Date: Feb 2008 Posts: 195 Member: 695166 Status: Offline Thanks Meter: 24	same problem Done. Z3X EasyJtag Software ver. 1.3.1.0 Loading eMMC Addon Firmware... IO: 1850 mV Box S/N: xxxxxxxxxxxxxxx, ,FW Ver.: 01.49 Warning: CMD Pullup Level (1196 mV) too low , check cables etc.!!! CMD Active Level:1619 mV Can't init EMMC, Reason: CMD Timeout Error =================================== Done.