DIP28 -> DIP23 Adapter or Circuit

Only for programmers and BIOS gurus with technical questions.
Tomasz
Chip off the ol' block
Posts: 67
Joined: Thu Mar 18, 2004 3:26 pm
Location: POLAND

Borg:
Yes!!! You're Great! My camera's batteries' out of order... no photo, sorry.
Any details about Your "adapter" at attached photo, please?

Rainbow:
There are 28DIP flashroms, are'n they? I can't remember type any of Atmel's, but there are they!
Can Uniflash flashs EEPROMS - when I will set "12V" jumper for flash in BIOS socket..? Will it be possible even if chip for flashing has no identyfication with Uniflash?
Best regards,
Tomasz, POLAND.
Borg Number One
Master Flasher
Posts: 169
Joined: Sun May 02, 2004 7:47 pm
Contact:

Tomasz.

It is an adapter to make it easier to (ex)change E-/EP-/FLash-ROMs.

The Testsocket makes all possible.
It is simply how the Testsocket works, but it is hard to explain.

The testsocket has opening/port(they consist of two metal dies).
(View fro mabove)

Code: Select all

      32     31     30  ...17
      |  |   |  |   |  |...|  |
      -------------------
      |  |   |  |   |  |...|  |
      1      2      3      16
      ++
   ++-++
   ++-++


      32    31    30  ...17
      |.|   |.|   |.| ...|.|
      -------------------
      |.|   |.|   |.| ...|.|
      1     2     3      16
      ++
++----++
++----++
    |
    |
This is the lever.

("|")= metal dies.

The pins of the EPROM are plugged between |  | .
If the EPROM is plugged ("|. |") and I move down the lever then the |. | close to |.| 

Image
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Borg Number One
Master Flasher
Posts: 169
Joined: Sun May 02, 2004 7:47 pm
Contact:

@Tomasz:

Code: Select all

DIL/DIP28      DIL/DIP32         DIP28 ((E)/EPROM/Flashrom/socket)=>DIP32 socket

                       (VCC)
               1  O   O  32           1      |===>32
                  O   O               2      ||==>31
 1 O   O 28       O   O           1   3   28=|||=>30
 2 O   O 27       O   O           2=> 4   27==||  29
 3 O   O 26       O   O           3=> 5   26===|  28
 4 O   O 25       O   O           4=> 6   25=====>27
 5 O   O 24       O   O           5=> 7   24=====>26
 6 O   O 23       O   O           6=> 8   23=====>25
 7 O   O 22       O   O           7=> 9   22=====>24
 8 O   O 21       O   O           8=>10   21=====>23
 9 O   O 20       O   O           9=>11   20=====>22
10 O   O 19       O   O          10=>12   19=====>21
11 O   O 18       O   O          11=>13   18=====>20
12 O   O 17       O   O          12=>14   17=====>19
13 O   O 16       O   O          13=>15   16=====>18
14 O   O 15    16 O   O  17      14=>16   15=====>17

@DIP32
2, 3, 28, 29 are not connected.
This cannot be correct.

Pin 26&27 of the DIP 28 must be connected with pin28&29.
Compare these datasheets:
http://atmel.com/dyn/resources/prod_doc ... oc0321.pdf
http://atmel.com/dyn/resources/prod_doc ... oc0014.pdf

Finally this should be the perfect adapter, is not it?:

Code: Select all

DIL/DIP28      DIL/DIP32          DIP28 ((E)/EPROM/Flashrom/socket)=>DIP32 socket

                       (VCC)
               1  O   O  32          |=>1      |=>32
                  O   O              |  2      |  31
 1 O   O 28       O   O            1=|  3   28=|  30
 2 O   O 27       O   O            2==> 4   27===>29
 3 O   O 26       O   O            3==> 5   26===>28
 4 O   O 25       O   O            4==> 6   25===>27
 5 O   O 24       O   O            5==> 7   24===>26
 6 O   O 23       O   O            6==> 8   23===>25
 7 O   O 22       O   O            7==> 9   22===>24
 8 O   O 21       O   O            8==>10   21===>23
 9 O   O 20       O   O            9==>11   20===>22
10 O   O 19       O   O           10==>12   19===>21
11 O   O 18       O   O           11==>13   18===>20
12 O   O 17       O   O           12==>14   17===>19
13 O   O 16       O   O           13==>15   16===>18
14 O   O 15    16 O   O  17       14==>16   15===>17

@DIP32
2, 3, 28, 29 are not connected.
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Rainbow
The UniFlasher
Posts: 3122
Joined: Wed Mar 20, 2002 4:16 pm
Location: Slovakia
Contact:

You can read any (E)(E)PROM with UniFlash - just use -force parameter to select any chip with matching size.
Patched and tested BIOSes are at http://wims.rainbow-software.org
UniFlash - Flash anything anywhere
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