Copy of 18CV8 - question - Page 1
Forum section: electronics / general

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 06:23:07 am
content: Hi !I copy AMI 18CV8P chip with Labtool 48UXP - save jedec file and for verification save to new tree chip AMI. But is not working !Is posibillity these chips is fake ?I attach photo:first original chip:second new chips:

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 08:19:57 am
content: Układ może być zabezpieczony przed odczytem.Zostanie utworzony plik JEDEC ale nie będzie zawierał rzeczywistej mapy FuseBits.The chip can be read-protected.A JEDEC file will be created but will not contain the actual FuseBits map.

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 08:37:58 am
content: Well, I don't know - after all, if it is secured, it either shows only zeros or something different every time, and I had the same fusebits every time. If it is secured, it would have to have a "false" read-only map activated when reading is attempted - I didn't read anything about it in the application note, but it says:"..The PEEL18CV8 provides a special EEPROM security bit that prevents unauthorized reading or copying of designsprogrammed into the device. The security bit is set by the PLD programmer, either at the conclusion of the program-ming cycle or as a separate step, after the device has beenprogrammed. Once the security bit is set it is impossible to verify (read) or program the PEEL until the entire device has first been erased with the bulk-erase function.."So if I can read it, it is not secured.

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 09:15:52 am
content: Układ może być odczytywany zawsze, niezależnie od stanu security bit.Przy ustawionym Security Bit w odczytanym pliku mapa FuseBit będzie pokazywać same 0 z wyjątkiemFuseBits odpowiedzialnych za User ID które nie jest protegowane.Jak podglądniesz zawartość pliku JEDEC to od razu zauważysz czy jest protekcja czy nie.The chip can always be read, regardless of the security bit status.With the Security Bit set in the read file, the FuseBit map will show only 0 exceptFuseBits responsible for User ID which is not secured.When you preview the content of the JEDEC file, you will immediately notice whether there is protection or not.

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 09:24:33 am
content: Is this what a map from a secured system looks like?: Generated by LabTool-48XP/UXP on Tue May 21 07:24:09 2024*QF2696*L000000 011101111111011111110111111111111111*L000036 011101111111101110110111111111111111*L000072 000000000000000000000000000000000000*L000108 000000000000000000000000000000000000*L000144 000000000000000000000000000000000000*L000180 000000000000000000000000000000000000*L000216 000000000000000000000000000000000000*L000252 000000000000000000000000000000000000*L000288 111111111111111111111111110111111111*L000324 111110111011011101111011111111111111*L000360 000000000000000000000000000000000000*L000396 000000000000000000000000000000000000*L000432 000000000000000000000000000000000000*L000468 000000000000000000000000000000000000*L000504 000000000000000000000000000000000000*L000540 000000000000000000000000000000000000*L000576 111111111111111111111111111111011111*L000612 111110111011011110111011111111111111*L000648 000000000000000000000000000000000000*L000684 000000000000000000000000000000000000*Of course, this is only a fragment.

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 09:47:54 am
content: Wygląda na nie zabezpieczony.Układy ze zdjęcia mają datę produkcji 38 tydzień 91, w tym okresie raczej nie stosowan0 laserowego znakowaniawięc mogą to być inne układy. Np. PEEL18CV8ZP który ma inną mapę FuseBits od PEEL18CV8It looks unsecured.The chips in the photo have a production date of 38 weeks 91, laser marking was not used during this periodso it may be other remarked . E.g. PEEL18CV8Z which has a different FuseBits map from PEEL18CV8

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 10:05:25 am
content: That's what I was afraid of - fakes!Thanks for the explanation about security and marking of chips.

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 10:22:23 am
content: Gdzie kupowałeś te układy.Na allegro są dostępne od TV-SAT który jest zaufanym sprzedawcą.Where did you buy these chips?They are available on Allegro from TV-SAT, which is a trusted seller.

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 10:49:22 am
content: Exactly from him:

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 11:01:17 am
content: Kupiłem od nich wiele różnych układów scalonych i nigdy nie trafiłem na podróbki.I have purchased many different ICs from them and have never come across a fake.

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 11:16:05 am
content: There's always a first time

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 11:20:56 am
content: Mam na stanie kilkaset PEEL18CV8ZP ale maja inny układ bitmapy.Trzeba by zdekodować odczytany JEDEC do równań logicznych i skompilować ponownie.Pełna mapa FuseBits dla 18CV8 jest dostępna.Ewentualnie na Allegro lokalnie ktoś sprzedaje układy ICT PEEL18CV8 (AMI zostało wykupione prze ICT).I have several hundred PEEL18CV8ZP in stock, but they have a different bitmap layout.You would have to decode the read JEDEC into logical equations and recompile.The full FuseBits map for the 18CV8 is available.Alternatively, someone locally sells ICT PEEL18CV8 chips on Allegro (AMI was bought by ICT).Check value of FuseBits L2192,L2913 "01" or "11" or"10"

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 11:46:45 am
content: You meant L2192, L2193 ?It's "00".I can't decompile it down to logic - the datasheet for this peel does not contain all the addresses, so I don't know how the macrotargets are configured because in this datasheet there are no addresses given for the configuration bits - unlike, for example, a datasheet with PAL/GAL - the addresses are given there and based on this you can read the full system configuration from the file. This is impossible with PEEL.

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 12:00:53 pm
content: Here is all needed data.

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 12:07:41 pm
content: Thank's, can it be used with 18cv8 version?

author: yabba235
author_rank: Contributor
timestamp: May 28, 2024, 01:16:21 pm
content: Unfortunately, I need a description of the fuses for the 18CV8 version - 16CV8 does not have these. which are additional in version 18.But thank you for your good intentions.

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 01:24:31 pm
content: Sorry my mistake. Proper file:

author: up8051
author_rank: Frequent Contributor
timestamp: May 28, 2024, 05:22:02 pm
content: One more info.Conversion from PEEL18CV8 to PEEL18CV8ZP without decompiling can be done in "ICT PLACE" software.

author: yabba235
author_rank: Contributor
timestamp: May 30, 2024, 07:22:32 am
content: Unfortunately, I can't do anything about regenerating the logic from the jedec file - I have both Winplace 1.5 and 2.0 programs and both of them work under Win7 (vmware) on my Windows 11 razor, but the compilation doesn't work - it says I don't have enough memory. So there's nothing I can do. There are some programs that decode the jedec file into logical equations, but they only work for PAL/GAL chips, not for PEEL.

author: bingo600
author_rank: Super Contributor
timestamp: May 30, 2024, 07:40:26 am
content: Quote from: yabba235 on May 30, 2024, 07:22:32 amIf program was designed to run on an "Old windows" , then : Not enough memoryCan actually be too much memory (The free memory register could overflow of ie. 16 or 32 bit)

author: yabba235
author_rank: Contributor
timestamp: May 30, 2024, 07:57:54 am
content: Quote from: bingo600 on May 30, 2024, 07:40:26 amI reduce memory size to 2GB - no help !

author: wraper
author_rank: Unknown
timestamp: May 30, 2024, 08:07:03 am
content: QuoteWhy not run win 95/98 on vmware? Maybe first try setting win 95/98 capability mode in win 7, run as administrator.

author: yabba235
author_rank: Contributor
timestamp: May 30, 2024, 08:23:41 am
content: Quote from: wraper on May 30, 2024, 08:07:03 amNo, it's not work. and my old virtual xp too - can't run winplace installer. So i need 20 years old computer for that. Sad...

author: up8051
author_rank: Frequent Contributor
timestamp: May 30, 2024, 08:59:14 am
content: Wyślij mi odczytany plik JED, to spróbuję go zdekodować.Send me the read JED file and I will try to decode it.

author: yabba235
author_rank: Contributor
timestamp: June 17, 2024, 10:26:48 am
content: I sincerely recommend the help of a colleague up8051 - he helped me with this file professionally.

author: DarkThanatoS
author_rank: Newbie
timestamp: June 23, 2025, 11:54:21 pm
content: Hello everyone, I also need help from the forum for the same integrated circuit.Regards

author: up8051
author_rank: Frequent Contributor
timestamp: June 24, 2025, 08:31:10 am
content: What is your problem?What do you need?

author: DarkThanatoS
author_rank: Newbie
timestamp: June 25, 2025, 06:08:16 pm
content: I need to copy the information contained in the integrated circuit, but it won't let me copy it.I have the Xgecu Universal Programmer TL-866 II Plus.How can I send you a photo of the integrated circuit so you can help me?I use WhatsApp and Telegram.Best regards,DaviS.

author: up8051
author_rank: Frequent Contributor
timestamp: June 25, 2025, 11:15:10 pm
content: As far as I know, the TL-866 II Plus programmer does not support PEEL 18CV8 chips.

author: DarkThanatoS
author_rank: Newbie
timestamp: June 28, 2025, 11:56:07 pm
content: Which programmer should I buy?

author: up8051
author_rank: Frequent Contributor
timestamp: June 29, 2025, 08:23:45 am
content: For example used Labtool48, cost about 300-500$ (WinXP and parallel port required) or Labtool48UXP (USB port) but cost is over 1000$.