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Thread: Ch341a programmer

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    Default Ch341a programmer

    Hi guys,

    Not sure i I'm in the right thread but I hope I am.
    I have a CH341a Programmer and I'm looking to reprogram a 25q64b ic.
    I have downloaded the drivers for it and for some reason it isn't detecting the ic on the socket.
    The jumper is on pins 1 and 2.

    I'm running an old xp computer. I'm not sure if that would be an issue as it is detecting the programmer.
    Just wondering if anyone else has had a similar problem and has fix it?

    Thanks in Advance

    Regards,
    aarty



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    Two threads on the same topic??

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    Depending on software version, the graphic shown on screen shows the chip orientation in the programmer the wrong way around. The notch / dot / pin 1 should be facing toward the ZIF locking lever. And, you have the chip in the correct half of the ZIF socket - for a flash 25-series that's the half away from the ZIF lever.
    Otherwise, you can manually specify the chip type and that'll give the software the best chance of talking to your 25Q64.

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    Yes, I have downloaded 2 types of software which has the ic in 2 different positions. I have tried them both but it doesn't detect it.
    I'm thinking of buying another ic (24x series) to see if it picks that one up.
    I was just checking to see if anyone else had the same problems as me.

    I have been on google and youtube to see what problems have been noted. When I put the ic on the programmer and press "detect" it says "unknown". So I bought another 25q64 and tried it out and still the same issue.
    I will try another computer that I have to see if different result as my computer is 10 years old running xp.
    All the other guys on the net are using windows 7 plus.
    Will let u know.

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    well an update.
    I can see in my device manager that it picks up the programmer as an interface but not via the usb com port.
    not sure if this is correct.

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    Think I see the problem now. The software can only auto-detect a chip that is in it's database. There might not be an exact match to your chip - the closest I could see is EON's EN25Q64.
    Who manufactures your chip? You may have to look up it's datasheet and compare it's programming specs against another chip that is in the software's database and choose the closest match based on spec, not name.
    Or you could just try selecting 25/26 SPI FLASH, then COMMON, then 25X64, and try to read, erase and write a test pattern, then verify it. If that all works, you're in business.

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