Using my CH341A.

[newguy90]

Re: Using my CH341A.

I found this information on using a CH341a and 93LC86 microwire https://freesoft.dev/program/171504972
93C56b is microwire

thank you R_J. I followed the link you gave me, but the info found there it doesn't help me... As far as I know the 93C56 EEPROM of my car has a bit organization of 128x16 bits, not 256x8 bits. The project from the link you sent me has a limitation in this respect (only 8-bit data organization (ORG pin Low) supported).

[stj]

Re: Using my CH341A.

maybe you should look at PONY PROG,

[newguy90]

Re: Using my CH341A.

I've started looking yesterday on the Pony prog 2000 website. As far as I see, I need to build the Base board (SI Prog) + the 93cxx adapter (Microwire eeprom adapter) using the schematics provided on that website. Is that right?
I want to build those, but as simple as it can be... So what would be the simplest schematic that I should build? Do I really need the extra power source? And if I do, can I use the 5V rail from the PC's PSU for this purpose instead of the one presented on the Base board schematics ?

[stj]

Re: Using my CH341A.

you only need what will be used, so really just 5v

[newguy90]

Re: Using my CH341A.

I inverted in the image below the colors of the components which I want to remove from the Base Board interface, and I retraced with red color the connections that I think it needs to be done in the circuit. Would it work this way?

[stj]

Re: Using my CH341A.

you need the voltage regulator, the serial port outputs 12v.
well it should but modern stuff is closer to 9v but it will still fry your chip!

[stj]

Re: Using my CH341A.

or get 5v from a usb port.

[newguy90]

Re: Using my CH341A.

I see... If 12 V is the voltage from those serial pins, then I think I definitely need a 5v regulator... But if I don't have the 5 V regulator (LM2936z-5), what else can I do using other common electronic parts that are easily available? Or can I just eliminate the 1N4148 (D1, D2 and D3) along with the regulator and the other capacitors (C3, C4 and C12) and just use a 5V from USB or from an 5V PSU rail to drive the pin 1 (that's VCC, + PE + ORG of the 93cxx EEPROM ) ?

[megaraider]

Re: Using my CH341A.

You can salvage an LM7805 from any common domestic appliance, TO-220 easy to spot.
You can also find 5V regulators in 3.5" hard disks boards.

[megaraider]

Re: Using my CH341A.

Pay attention to the EEPROM pin layout:
93C56B-I/MS standard pin layout
vs.
93C56BX-I/SN rotated pin layout

[stj]

Re: Using my CH341A.

just use 5v from usb or ps2 connectors.

[mcnc]

Re: Using my CH341A.

Does this flasher supports 1.8v chips?

[stj]

Re: Using my CH341A.

no, it supports 5v chips, it's not intended for large chips like serial-flash

[el panke]

Re: Using my CH341A.

this is the last ver of the software
maybe could help some1

[newguy90]

Re: Using my CH341A.

this is the last ver of the software
maybe could help some1

I uploaded your archive to virusTotal to verify it and some AV engines have detected trojans. ( CAT-QuickHeal : Trojan.IGENERIC /// MaxSecure: Trojan.Malware.74274250.susgen // SecureAge APEX: Malicious//
SentinelOne (Static ML): DFI - Suspicious PE//Trapmine: Malicious.high.ml.score)

Are they just false positives, or what?

[stj]

Re: Using my CH341A.

hard to know, the hacked versions are loaded into some type of "virtual shell" so the software thinks it's on a different machine.
you could hide anything in that.

it still wont do 93 series.

[newguy90]

Re: Using my CH341A.

Well, I did it! I built myself a Pony Prog adapter for the programming of 93cxx EEProms using PonyProg and the result is: SUCCESS! I managed to write a 93c46 EEPROM that I bought from a local shop for testing purposes.
Next: I will try to read/write the 93c56 in circuit. Keep ur fingers crossed for me, pls !

[el panke]

Re: Using my CH341A.

I uploaded your archive to virusTotal to verify it and some AV engines have detected trojans. ( CAT-QuickHeal : Trojan.IGENERIC /// MaxSecure: Trojan.Malware.74274250.susgen // SecureAge APEX: Malicious//
SentinelOne (Static ML): DFI - Suspicious PE//Trapmine: Malicious.high.ml.score)

Are they just false positives, or what?

just false positives i guess, never had a problem using it

[stj]

Re: Using my CH341A.

Well, I did it! I built myself a Pony Prog adapter for the programming of 93cxx EEProms using PonyProg and the result is: SUCCESS! I managed to write a 93c46 EEPROM that I bought from a local shop for testing purposes.
Next: I will try to read/write the 93c56 in circuit. Keep ur fingers crossed for me, pls !

to read in circuit,
you have to power the circuit, and make sure nothing else try's to read the eeprom when you do.
infact if your doing that, DONT connect the 5v supply pin to the eeprom.
just the ground and clock/data etc.

[newguy90]

Re: Using my CH341A.

I successfully read and wrote in circuit the 93c56 and 93A56 EEPROM's. I didn't have to power on the circuit, I just used the SOIC8 test clip with the interface
that I built!
I could not use the CH341a though, so I have no use for that interface... at least for now.