willem pcb50b problem with 93c66 and 24lcxx

[Def89]

Hi to all!! I'm a new members, I write from Italy, and I've find this forum because I've a problem with my new willem pcb50b!

I've try to contact Sivava by e-mail, but I haven't had any answer....
My proboblems is this: when I tray to read or write a 93c66 eeprom, the software (0.98D12c3, or 0.98D12 or more old) returns illogical date, Some time return the same date, buth if I try to write into the memory my data the operation doesn't run until end
I've try to write/read so a 24LC16b and a pic16f84a, but I've the same problems!

Instead if I program a w29ee011 I don't have any problems.

I've select the parallel port as a normal mode from bios, and I've try to use windows 7 and windows XP, but the problems is the same.....


At the end, I want try to program an EPROM 27C1024 with the adapter but I've some doubts about the connection of the PCB.....and a flash 29f200 but I don't have the adaptor (someone have the scheme of an adaptor?)


Thanks to all.
Fabrizio

[Ezo]

I tray to read or write a 93c66 eeprom

check your chip structure 8, 8/16 or 16 bit mode (search 93C66, chip database left)
8/16 bit program with 8bit selection

I've try to write/read so a 24LC16b and a pic16f84a, but I've the same problems!

Should work. Check Test H/W, and measure voltage on serial chip socket pins . Tick box 32-Vcc to measure voltage (24Cxx ,pin8). Tick box OE and D0, to check voltage changes on data in pins.
Tick box OE and D1 to check voltage changes on clock pins. Use any basic pcb3b schematic as reference.

I want try to program an EPROM 27C1024 with the adapter but I've some doubts about the connection of the

Check/change jumper correct Vcc (5.6 or 6.2) and Vpp (12.7)voltages.Place chip in correct adapter socket. Place adapter in ZIF socket. Blank check/read. load file and program.

flash 29f200 but I don't have the adaptor (someone have the scheme of an adaptor?)

tsop48 or sop44 package . Are you ready build or purchase ?

[Def89]

Thanks for your answre!! I am very happy that someone wants to help

check your chip structure 8, 8/16 or 16 bit mode (search 93C66, chip database left)
8/16 bit program with 8bit selection

I've an st93c66, that is a 8/16bit EEPROM I've try to read/write this as 8 and as 16bit, with different software selection, but it doesn't work correctly In software windows the 12 selection switches are put all at off, I don't know as this switch works (I haven't a manual of the programmer )

Should work. Check Test H/W, and measure voltage on serial chip socket pins . Tick box 32-Vcc to measure voltage (24Cxx ,pin8). Tick box OE and D0, to check voltage changes on data in pins.
Tick box OE and D1 to check voltage changes on clock pins. Use any basic pcb3b schematic as reference.

I've tray to control the outputs and thes work correctly!!
you have told that pcb3b or pcb5b schematic are same, but I haven?t found either if you know where I can find one of thes I'm grateful to you, If it's possible a pcb50b scheme is more good

Check/change jumper correct Vcc (5.6 or 6.2) and Vpp (12.7)voltages.Place chip in correct adapter socket. Place adapter in ZIF socket. Blank check/read. load file and program.

I've an adaptor (buy from sivava) but this has an addiction 8 pin cable to connect 8 pin on adaptor at (I think) J4 of pcb50b ; but I don't have a instruction manuals of the adaptor

tsop48 or sop44 package . Are you ready build or purchase ?

I've a complicated architecture, this memory is put inside a epoxy resin of an ecu, I can contact this by a 44 pin connector (And the flash is a psop44), so I must do an adaptor (but to test the programmer I can build a classic psop44 adaptor, and then when it works with flash, I build the special adaptor), I think that it is not a difficult object, but I don't know how willem controls pins when the software control the pcb for work with a 29f200, If I've a manual or something for me it's an easy realization, but without it is a impossibles item....

Thanks

[Ezo]

I've an st93c66, that is a 8/16bit EEPROM I've try to read/write this as 8 and as 16bit, with different software selection, but it doesn't work correctly

Check result changes , apply Action Swap byte
What Vcc voltage applied on 93xx , 5V or 3.6 ?

In software windows the 12 selection switches are put all at off, I don't know as this switch works

dipswitch panel not used for serial devices

you have told that pcb3b or pcb5b schematic are same, but I haven?t found either if you know where I can find one of thes I'm grateful to you, If it's possible a pcb50b scheme is more good

pcb3b refernces can be found in my forum - apply search, in google, here source
pcb3b
one pcb3b manual
pcb50b no public document available , some changes described here
Important changes - built in plcc32 adapters plcc32-dip32 , plcc32-fwh/lpc; jumper to reduce target voltage to 3.6 (Open3.6); option to have power from USB; jumpers to swithch programmer mode pcb3b/pcb5.0 (in pcb50 mode apply SW 0.98xxx, in pcb3 SW 0.97xx).

I've an adaptor (buy from sivava) but this has an addiction 8 pin cable to connect 8 pin on adaptor at (I think) J4 of pcb50b ; but I don't have a instruction manuals of the adaptor

Apply 8pin cable between programmer and adapter for parallel memory 8Mb and more (adress A19..A22 connection)

I've a complicated architecture, this memory is put inside a epoxy resin of an ecu,

Not able to program such chips. It should be removed from device.

[Def89]

Check result changes , apply Action Swap byte
What Vcc voltage applied on 93xx , 5V or 3.6 ?

Vcc is selected ad 5.0V by usb power and it's real 5.06V, but it's ok to 93c66 it's can work from 2.5v to 5.5v
If I read memory in 8 bit mode, with psop8 93c66 instal in 93Cxx socket inside pcb50.. I obtain some data, but if I try again read operation I get another data.
In my opinion there is a sincornization problem between clock and data.
If I swap byte I don't observe noting of considerable.

Apply 8pin cable between programmer and adapter for parallel memory 8Mb and more (adress A19..A22 connection)

ok so it is not necessary to program memory 1Mb.

Not able to program such chips. It should be removed from device.

In practice, the 29f200 that I must program is isolated from the rest of board where it's install, the memory has a barrier of buffer-tristate on all 39 pin (control, address and data), vcc and Gnd are disconnected by hardware; so I can contact the memory as if I had a simple chip in my hand.
The memory is inside my work, it's a memory that contain the fuel map iniection of an engine control unit, that I've completely build.
I've programed this memory by my home made flash programmer, buh I'm happy if I can program the memory by a more general purpose programmer as willem

Thanks for the electrical scheme

[Def89]

Hi, I've a new problems or better I've necessity of an help... I want to programm an At27C1024, I've install it in the sivava Eprom 16 bit 27Cxxxx adapter; but How I must select jumpers on the pcb50b?
Datasheet tells that vcc and vpp for programming must be Vcc=6.5+/-0.25V and Vpp=13+/-0.25V
I've connect the Dc-jack at 12V, now I must select Vcc with jumper open or not? I've selected Vpp=12.75V, it's ok?
I must select others jumper?

THanks for your Help!

[Ezo]

Vcc with jumper open or not

Jumper Open-3.6 closed.

I've connect the Dc-jack at 12V

ok. power supply should hold 300mA min
don't apply power from USB for eproms

I've selected Vpp=12.75V, it's ok?

Here are 3 jumpers around MC34063 to select Vpp=12.7 and Vcc=5.7 (or 6.2)
Follow settings according docs, verify voltages
Keep 27C1024 settings, place adapter without chip.
Go Test H/W and activate 32-Vcc and 1-Vpp.
Check voltage on adapters pin according 27C1024 pinout (DIP40, 1-Vpp, 40-Vcc)

I want to programm an At27C1024

Is it new or erased ? Usually Atmels are OTP without erase window.

[Def89]

Is it new or erased ? Usually Atmels are OTP without erase window.

It's new, and it's an OTP, I don't have found a similar memory that isn't an Otp if you know some; tell me which is, that I exchange immediately my Atmel...

BUT now I've a new problem.... I've test the output and it's good, if I select vcc and vpp, and other pin by "Test H/W" but if I perform Help > test hardware; I read "Hardware error : Check power & connection"..... I've try to restart pc, I've try by use Xp and seven, on the same Pc I've 2 operative sistem, but problem remains, at this point I don't know if it's a problem of motherboard or operative sistem.... I've uninstall willem50 software also I've instal it again, as instal directly 98D12c4 and by install all old software and Xp stop pooling, buth the problem remain

Problem is present if pcb50b is supply by dc plug or usb. .

I don't know what I can do

Bye

[Def89]

I've some news, but they are bad news
I've tryed to use another 2 Pc, an old pentium4 and a new Pc, with windows seven 32bit, but Willem pcb50b didn't work correctly

When I check the hardware for some time the program return that hardware is present, then program returns error and this situation don't change if I restart pc or disconect willem.... But at some point program return that hardware is Ok, but this point is completly casual, I don't touch nothing.....

So I've this problem, and for this problem I've damaged 2 at27c1024, because during the writing execution, the program told that is an error between buffer and chip, but probably the problem is in willem.... also If I try to read chip and then I verify if buffer is equal to chip some time the verify is Ok and some time it's bad...

bye

[Def89]

during a new test I've found that A9 on pin 26 of zif32 there is at 3.4V, and not 4.43V as in all other pin... In general 4.43 is bit lower than 5.13V of Vcc; but at pin16 of 4015 arrive only 4.45V....

Have you any ideas?

[Def89]

After some test I've try to excange the parallel cable and the comunication appeared good....but the tension on A9 and A27 is 3.4V....So I can do a new test, but the result is not very cheering...
I've made a video of software screen, you can observe that the file is read and verify is Ok, but when I try to write the new file, there are some errors at different location, but if we see first reading the chip is same to actual buffer...
The "new" file is the same file that is in chip, buth in chip there is only a part of this file (until 0x845), but I've compared the "new" file with the partial file that is in the eprom and they are same (until 0x845) then the file read from the memory is 0xFF and the "new" file contains other data... But in teory I can program the eprom from addres 0x854 to the end, if I use the same first part file....

In your opinion what can be? A problem of glitch?

VIDEO

thanks and Bye