Using my CH341A.

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  • newguy90
    Member
    • Sep 2019
    • 12
    • Romania

    #21
    Re: Using my CH341A.

    Originally posted by R_J
    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).

    Comment

    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31017
      • Albion

      #22
      Re: Using my CH341A.

      maybe you should look at PONY PROG,

      Comment

      • newguy90
        Member
        • Sep 2019
        • 12
        • Romania

        #23
        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 ?
        Last edited by newguy90; 09-10-2019, 02:00 AM.

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 31017
          • Albion

          #24
          Re: Using my CH341A.

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

          Comment

          • newguy90
            Member
            • Sep 2019
            • 12
            • Romania

            #25
            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?
            Attached Files
            Last edited by newguy90; 09-10-2019, 04:06 AM.

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31017
              • Albion

              #26
              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!

              Comment

              • stj
                Great Sage 齊天大聖
                • Dec 2009
                • 31017
                • Albion

                #27
                Re: Using my CH341A.

                or get 5v from a usb port.

                Comment

                • newguy90
                  Member
                  • Sep 2019
                  • 12
                  • Romania

                  #28
                  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 ) ?
                  Last edited by newguy90; 09-10-2019, 01:15 PM.

                  Comment

                  • megaraider
                    Badcaps Veteran
                    • Jul 2015
                    • 307
                    • Portugal

                    #29
                    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.

                    Comment

                    • megaraider
                      Badcaps Veteran
                      • Jul 2015
                      • 307
                      • Portugal

                      #30
                      Re: Using my CH341A.

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

                      Comment

                      • stj
                        Great Sage 齊天大聖
                        • Dec 2009
                        • 31017
                        • Albion

                        #31
                        Re: Using my CH341A.

                        just use 5v from usb or ps2 connectors.

                        Comment

                        • mcnc
                          New Member
                          • Sep 2019
                          • 3
                          • Serbia

                          #32
                          Re: Using my CH341A.

                          Does this flasher supports 1.8v chips?

                          Comment

                          • stj
                            Great Sage 齊天大聖
                            • Dec 2009
                            • 31017
                            • Albion

                            #33
                            Re: Using my CH341A.

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

                            Comment

                            • el panke
                              Senior Member
                              • May 2019
                              • 78
                              • argentina

                              #34
                              Re: Using my CH341A.

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

                              Comment

                              • newguy90
                                Member
                                • Sep 2019
                                • 12
                                • Romania

                                #35
                                Re: Using my CH341A.

                                Originally posted by el panke
                                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?
                                Last edited by newguy90; 09-19-2019, 03:37 AM.

                                Comment

                                • stj
                                  Great Sage 齊天大聖
                                  • Dec 2009
                                  • 31017
                                  • Albion

                                  #36
                                  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.

                                  Comment

                                  • newguy90
                                    Member
                                    • Sep 2019
                                    • 12
                                    • Romania

                                    #37
                                    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 !

                                    Comment

                                    • el panke
                                      Senior Member
                                      • May 2019
                                      • 78
                                      • argentina

                                      #38
                                      Re: Using my CH341A.

                                      Originally posted by newguy90
                                      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

                                      Comment

                                      • stj
                                        Great Sage 齊天大聖
                                        • Dec 2009
                                        • 31017
                                        • Albion

                                        #39
                                        Re: Using my CH341A.

                                        Originally posted by newguy90
                                        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.

                                        Comment

                                        • newguy90
                                          Member
                                          • Sep 2019
                                          • 12
                                          • Romania

                                          #40
                                          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.

                                          Comment

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