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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.

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Old 11-17-2020, 00:42   #46 (permalink)
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Friend layder here is my thread

https://forum.gsmhosting.com/vbb/f67.../#post14265953

Please answer me.
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Old 11-17-2020, 10:15   #47 (permalink)
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Quote:
Originally Posted by M.Elarapy View Post
Friend layder here is my thread

https://forum.gsmhosting.com/vbb/f67.../#post14265953

Please answer me.
I have difficulty reading topics with big bold letters, so if you want to get answers to them quickly, then write them in regular font and size
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Old 12-30-2020, 14:55   #48 (permalink)
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hi sir i have j810f isp working and but i have problem
..........
Setting interface to EasyJtag2/ISP
Setting bus width to 1 Bit
Setting frequence to 24 MHz
CMD Pullup Level: 1809 mV
CMD Active Level: 1855 mV
Can't init device. Reason: CMD Timeout Error
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Old 01-02-2021, 14:40   #49 (permalink)
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Quote:
Originally Posted by amd_rz View Post
hi sir i have j810f isp working and but i have problem
..........
Setting interface to EasyJtag2/ISP
Setting bus width to 1 Bit
Setting frequence to 24 MHz
CMD Pullup Level: 1809 mV
CMD Active Level: 1855 mV
Can't init device. Reason: CMD Timeout Error
===========
eMMC ISP connection
ISP (In-System Programming) is*not documented connection for*eMMC at PCB. It use 1-dat line (1bit) mode for*transder data between eMMC and box. ISP mode connection use CLK, CMD, DAT_0 (Data zero), GND wires and VCC, VCCQ power wires for eMMC.


Some devices have pads for CLK/CMD/Dat_0 signals*on PCB. But mist devices not have pads, and some devices have no wires for these signals of PCB*top layer (wires are placed at internal PCB layer).


There are 2*types of ISP*eMMC connection:
- Normal mode*
- HiPower CLK*(tm) mode


Normal mode:

At Normal mode ISP MMC connection need use this pins:

GND
CMD
CLK
DAT0
VCC
VCCQ


Device board have no power from USB charger or*battery. Power to eMMC is external (VCC, VCCQ wires) and provide from EasyJTAG Plus box or from third-party power adapder for EasyJTAG 1st generation box.


Some devices need use Pull-UP resistors for DAT0/CMD lines (100-200 ohms)


For best ISP connection relults EasyJTAG Plus box (with box firmware*v2.53+) allow use different VIO levels voltages: 1,8/2.0/2.2/2,4/2.6/2.8/3.0/3.3v

HiPower CLK (tm) mode:
- Device board get power from USB charger or*together USB/battеry.*
- VCC/VCCQ wires are*not connected at this mode.*
- At software must be set "HiPowerCLK mode" checkbox.
- For*EasyJTAG 1st generation box*need use special 4pins CLK adapter.


HiPowerCLK mode is the best solution for most new devices.


At HiPowerCLK mode ISP eMMC connection need use only this pins:

GND
CMD
CLK
DAT0

Important requirements that must be met for a quality ISP connection:
- GND wire should be much thicker compared to others
- the length of all wires must be same
- the length of all wires should be kept to a minimum. Best length*is 5-10 centimeters


CLK clock at ISP mode*determines the data trarsfer*speed beetwin eMMC and box. If the above requirements are met, the stability of operation is ensured at frequencies up to 24-36MHz. The best performance is from 14-24MHz. There is no need to use lower frequencies.*
===========

also you can try change VIO voltage
and change "Disable eMMC hi-speed timing" at software settings

Last edited by layder; 01-03-2021 at 00:15.
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Old 01-19-2021, 11:54   #50 (permalink)
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After updating to 1.6.4.0 and 3.7.0.20 I get the following:



Any reason this should happen? Or is it false positive?
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Old 01-22-2021, 12:37   #51 (permalink)
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Originally Posted by sepulchral View Post
After updating to 1.6.4.0 and 3.7.0.20 I get the following:



Any reason this should happen? Or is it false positive?
change you antivirus software, if you download version from shell
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Old Yesterday, 18:31   #52 (permalink)
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application permission

Hello. Help please, the contents of the tabs are floating. Until the last two updates, everything was ok.
:закатывать глаза:
Attached Images
File Type: jpg 1.jpg (215.6 KB, 5 views)

Last edited by Pedalis; Yesterday at 18:36.
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Old Today, 00:15   #53 (permalink)
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easyjtag when to update to ffu firmware the new emmc series...


another box has already launched ffu firmware update the new emmc series


easyjtag when ???
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