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Problem using Sunrom Programmer 1001-3456-V2 for AT89C55WD

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KiranVSutar

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Hi,
I have built and used Sunrom programmer 1001-3456-v2 (ProLoad Ver. 5.4) for the last 6 months for AT89C52/AT89S52, and am satisfied with it.:D

Now I want to program AT89C55WD. This always gives an error on Verify Fail at Address 1.:cry:

When I put this IC into another USB programmer(UNIPro), it shows blank.:!:

The same AT89C55WD gets programmed in USB programmer(UNIPro).:!:

Whereas the Sunrom programmer is working fine with AT89C52.:!:

Once this Sunrom Programmer worked on 2 of AT89C55WD, but after some time, it started giving the same problem, with the very same ICs. But the ICs are OK when checked in UNIPro programmer.:?::!::!::!:

Is a new version of hardware/firmware/software needed?
 

Sunrom programmer best works with AC adaptors. Confirm You are using 14-16 volts AC adaptor or for supplying the programmer. Sunrom gives the same error in power issues. Please cross check the same...Cheers
 

Hi Pranam77,
I tried with 15VAC Adaptor, but it give s the same problem.

I have also posted this query on another forum:
**broken link removed**
 

Then the connections (tracks connecting the Zif sockets are open or short or the 12 volts drops some where...Cheers
 

Hey can anyone please forward me the hex file and PCB file + BOM if possible or direct me to a link that have them. Most important is the hex file that must have come with it.

KiranVSutar said:
Hi,
I have built and used Sunrom programmer 1001-3456-v2 (ProLoad Ver. 5.4) for the last 6 months for AT89C52/AT89S52, and am satisfied with it.:D

Now I want to program AT89C55WD. This always gives an error on Verify Fail at Address 1.:cry:

When I put this IC into another USB programmer(UNIPro), it shows blank.:!:

The same AT89C55WD gets programmed in USB programmer(UNIPro).:!:

Whereas the Sunrom programmer is working fine with AT89C52.:!:

Once this Sunrom Programmer worked on 2 of AT89C55WD, but after some time, it started giving the same problem, with the very same ICs. But the ICs are OK when checked in UNIPro programmer.:?::!::!::!:

Is a new version of hardware/firmware/software needed?
Click to expand...
 

I faces issues like , Device (chip) not detecting, then later write failure, vrification failure. the issue was filter capacitor 100n,
to resolve chip not detecting issue, I changed BC547 and diodes,

to resolve verification falure error
I removed all ceramic capacitor and replaced it with chip polyster capacitor, added a capacitor at AC input jack pins, this solved the issues..
 

AT89C55WD need the Vcc 6.5V when programing flash, while the VCC in SIngle Side PCB is 5V
See the datasheet 89C55WD, you will see this
 

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