How to use cheap CH341A programmer for read/write 95xxx Eeproms - Page 2
Register
Page 2 of 2 FirstFirst 12
Results 16 to 22 of 22
  1. #16
    Junior Member
    Join Date
    May 2011
    Posts
    29
    Thanks
    3
    Thanked 1 Time in 1 Post
    Downloads
    0
    Uploads
    0

    Default

    I have been using this device CH341 for readinng and programming mainly BIOS for PC. I m trying now to read a 5P08C3 eeprom from my ECU to get the file and write it into a donor ECU eeprom. It seems the reading is ok (however I get sometimes different readings). My understanding is that it is possiblr to mod the CH341. M;y intent is to put a switch so that I can give 3,3 or 5 volts. I guess the 5 volt MUST be supplied to the Vcc pin (pin 8) of the chip. Is this correct?
    Last edited by vince59; 22nd December, 2019 at 10:10 PM.

  2. #17
    Newbie
    Join Date
    Jan 2020
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Downloads
    0
    Uploads
    0

    Default

    Hello, i know this post is old. I modified my programmer like the first post. But everytime i try to read the EEPROM the reading is only "FF FF ...""

  3. #18
    Newbie
    Join Date
    Nov 2019
    Location
    Ukraine
    Posts
    3
    Thanks
    3
    Thanked 1 Time in 1 Post
    Downloads
    0
    Uploads
    0

    Default

    I was able to read 95320 chips from radio and immo w/o modifying programmer. Used AsProgrammer from here https://github.com/nofeletru/UsbAsp-flash/releases (select correct chip type via IC - Search). I was checking correct pinout with multimeter to see that Ground on programmer's USB and Ground on ECU are the same. I used clip to read chip w/o soldering it out.

  4. The Following User Says Thank You to hadesinua For This Useful Post:

    zappaf (28th March, 2020)

  5. #19
    Newbie
    Join Date
    Mar 2008
    Posts
    15
    Thanks
    13
    Thanked 0 Times in 0 Posts
    Downloads
    32
    Uploads
    0

    Default

    @hadesinua - thanks. With AsProgrammer I read 95640W - Blaupunkt -RCD 300 with soic8 (I modify cheap CH341A eeprom).
    Thanks
    Last edited by zappaf; 28th March, 2020 at 06:31 PM.

  6. #20
    Newbie
    Join Date
    Mar 2016
    Posts
    3
    Thanks
    1
    Thanked 2 Times in 2 Posts
    Downloads
    1
    Uploads
    0

    Default How to use cheap CH341A programmer for read/write 95xxx Eeproms

    Just wanted to say I really appreciate who made this guide I too was able to read some eeproms with this method. For those doing the mod I know this is self explanatory for some but for me wasn’t strait forward, this is how you do the capacitor mod. Also I added a file you can replace in AsProgrammer to get more types of chipsets in the search chiplist.zip

    Adjustments.jpg
    Last edited by ferrarikid; 16th March, 2020 at 06:41 PM.

  7. The Following User Says Thank You to ferrarikid For This Useful Post:

    zappaf (28th March, 2020)

  8. #21
    Newbie
    Join Date
    Aug 2016
    Posts
    13
    Thanks
    9
    Thanked 0 Times in 0 Posts
    Downloads
    3
    Uploads
    0

    Default

    thanks its work fine...... this a look ...thankyou

  9. #22
    Newbie
    Join Date
    Apr 2020
    Location
    UK
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Downloads
    0
    Uploads
    0

    Default

    Many thanks for the howto, worked a treat to read a st95080. Thanks again.

 

 
Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •