Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > General Electronics Technical Discussion
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 11-29-2021, 02:10 AM   #1
Richi_el
Member
 
Join Date: Nov 2013
City & State: Germany
My Country: Koln
I'm a: Knowledge Seeker
Posts: 70
Default I2C Programming - How to ?

Hello,

can someone tell me more about i2c programming wich interface & software is used for.

And the most important question is:
Is it possible to read the i2c data from a device, to copy it to another device.

The part wich i need programm is a TPS658621C

https://pdf1.alldatasheet.net/datash...PS658621A.html

here the dataheet, i already found the pins H4 and J2 for SDA & SCL for the connection ,but i dont know wich software and programmer is the right one.

Thank you for support.
Richi_el is offline   Reply With Quote
Old 11-29-2021, 10:45 AM   #2
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,621
Default Re: I2C Programming - How to ?

are you sure that chip stores anything?
the "A" version doesnt, it just has control registers that i assume are written when you power up the device.
Attached Files
File Type: pdf TPS658621A-etcTI.pdf (3.53 MB, 8 views)
stj is offline   Reply With Quote
Old 11-30-2021, 04:03 AM   #3
Richi_el
Member
 
Join Date: Nov 2013
City & State: Germany
My Country: Koln
I'm a: Knowledge Seeker
Posts: 70
Default Re: I2C Programming - How to ?

Hello,
thanks for your support.

Maybee i have to tell the whole story about it

i have 5 pcb`s from that device wich are not starting.
(Industrial device, same like a notebook with touch panel)


Normally the starting sequence on power supply:


beginn 0,3Amp raise up to 0,55Amp and then the devie Start by 1,4Amp

by this 5 pcbs i had some different starting sequencenes and the pcbs are not starting.

3 x starting sequences goes from 0,3Amp - 0,5Amp raise up to 0,9Amp
(the TPS658621C goes really hot) and it fall down again to 0,3 Amp

2 x starting sequences goes from 0,3Amp - 0,5Amp


so i decided to try to change the TPS658621C with new ones


The result was that all 5 pcbs are makeing now this starting sequences:


Start with 0,3 Amp raise to 0,65Amp and fall down again to 0,3Amp

All 5 pcbs make exact the same starting sequences after change the TPS658621C and also that ones wich goes hot(the TPS658621C) is not getting hot after change but not starting .


SO my result from that experiment was that the TPS658621C must be programmed and i looked to the datasheet and i saw that 11programmable mods are written in datasheet, and also that this ic is programmable with i2c interface....

I thought its like a MCU programming maybee, so i was searching for the correct programmer ect.

Maybee iam wrong, but why all devices have the same starting sequences after change TPS658621C =?

I never do this before(i2c), but i did some emmc programmings ect.

Note:

By one of that devices i had also a problem by starting process:

starting sequence was 0,3Amp - 0,5Amp and not starting...

after reflow the TPS658621C (balled) the device started normally
0,3Amp raise up to 0,55Amp and then the devie Start by 1,4Amp


Thanks for your support

Last edited by Richi_el; 11-30-2021 at 04:07 AM..
Richi_el is offline   Reply With Quote
Reply

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

Forum Jump



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 08:50 PM.
Did you find this forum helpful?