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Forum: µC & Digital Electronics isp AT89LP2051


Author: johnguy (Guest)
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Hi,
I`m using a very old batronix software studio for proramming 8091.

Now I found isp AT89LP2051, that are pin compatible with the AT89C2051.

There are some stk500 usb programmers around for little money. How does 
it work? What program SW do I need?

apreciate any help with this,
thanks,

John

Author: Sebastian (Guest)
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Programming the AT89LP2052 is quite similar to the serial programming of 
AVR microcontrollers, but the polarity of RESET is different. Supposedly 
an AVRISP MKII (the blue USB variant) can be used for those chips. 
Possibly, clone programmers can do similarly, but you should check if 
the software available for those supports the type you want.

Author: johnguy (Guest)
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That`s the thing, I cant find a software - specifically for the 
AT89LP2051 or AT89LP4052.

Author: Sebastian (Guest)
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Author: Jan Waclawek (wek)
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Note that there is also an additional signal (SS) above the "usual" 
MISO/MOSI/CLK/RESET needed for programming the 'LPx052 - presence or 
absence of that could give away if an STK500-alike is able to program 
them.

You might want to have a look at biprog 
http://ruckl.wz.cz/biprog_en/biprog_en.php .

JW

Author: Matthias S. (Company: matzetronics) (mschoeldgen)
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I can confirm that the original AVRISP MkII is able to program both 
AT89S51 and AT89S52 MCUs via ISP using the STK500.exe commandline 
software (including the inverted Reset polarity), but i cannot speak for 
the small 89S2051 variant.
It is not possible to e.g. program the AT89S253 with the AVRISP MkII. 
Note that the ATTiny2313 is a pin-for-pin replacement for the 89S2051 , 
except for inverted Reset polarity.

Author: elnec slave (Guest)
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just get an Elnec Programmer
...and you're done !

Author: Jan Waclawek (wek)
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STK500/AVRISP won't program 'S2051/'S4051 because of the same reason why 
it won't program the 'S8253 - they have a similar programming protocol.

I can't speak for the clones.

JW

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