Using my CH341A.

[diamon]

I have ordered also this device from Ali, (this one: click) and after connecting it to the USB port on my laptop, the voltage on data pin mentioned in the YouTube posting from AdamantIT is not 5V but the 3.2V from the voltage regulator (no chip has been placed into to socket).

It seems they have fixed this 5V issue on the data pin. The main chip is running on the 3.2V and not on 5V.

[remaker]

I recently had a similar problem and posted a photo of the Chinese jumpers to Chinese Stack Exhange
https://chinese.stackexchange.com/q/59967/43628

Basically, jumper, 1-2 means “programmer.” That activates the programming line (ACT#) on the chip. Jumpers 2–3 translate to “brush machine,” while “brush machine” idiomatically means “flash programmer,” what it's really doing is disconnecting the programming line and setting up the system to use the USB to RS-232 as pass-through at TTL level. It seems that all USB the serial converters are called, brush machines, or flash programmers, since that is the most common use of the converter these days.

This particular model does not let you adjust 3.3V and 5V output. It seems to work fine on 3.3V parts, but a lot of people are uncomfortable with the electronic design. There are a number of sites that talk about how to physically modify the device to get through 3.3V, but it worked fine for me on 3.3V parts.

[digby1951]

Re: Using my CH341A.

can you share exactly how you got the 3.3v working?
what pins you tied together or what jumper settings you used?
Thanks

https://www.youtube.com/watch?v=Hwnz...nnel=AdamantIT

[stj]

Re: Using my CH341A.

3.3v on what adapter?

[beekerc69]

Re: Using my CH341A.

can you share exactly how you got the 3.3v working?
what pins you tied together or what jumper settings you used?
Thanks

[stj]

Re: Using my CH341A.

if you dont want to build something,
another option is this!

i just recieved one yesterday - very capable for the price!
http://www.xgecu.com/EN/TL866_main.html
http://www.aliexpress.com/item/32992209964.html
(and it can work in Linux as well as windows)

[R_J]

Re: Using my CH341A.

Check this site, it has some information: https://hw-server.com/serial-eeprom-programmer
or do a google search for "93c56 programmer"
Also see here http://www.lancos.com/prog.html for ponyprog

[philbo_baggins]

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.

newguy90, I am working through a similar problem that you did, do you mind doing a quick writeup of what you did to get this to work? It sounds like you didn't use the CH341 usb programmer/software, but connected directly to the chip through a serial port? I wasn't sure where the drawing you redlined came from, or if that was the final version that you used. Thanks.

[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.

[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.

[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

[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 !

[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.

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?

[el panke]

Re: Using my CH341A.

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

[stj]

Re: Using my CH341A.

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

[mcnc]

Re: Using my CH341A.

Does this flasher supports 1.8v chips?

[stj]

Re: Using my CH341A.

just use 5v from usb or ps2 connectors.

[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

[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.