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need help for programme atmega128

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senthilkumar

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hi,
iam using pony programmer to pgm the avr device via parallel port. iam trying to programme the at90s8535,atmega8535,atmega32,all are ok.

but iam try to programme the atmega128. its fail.


its say no device found.

how can i solve that.

any one have experience that.
 

Please make sure that whether u have configure to internal clock or external clock
Try to use u r own programmer which is available in the net.
 

do have that one.

can u have the link for that,which is 100% work.
 

mega128 have different SPI port WITH mega16,see the datasheet, not MOSI MISO .
 

You may view a schematic on www.ere.co.th
They have a schematic for avr loader and free software.
 

I have develop my own programmer it is 100% working mail me
shatronics786@rediffmail(about u r's)
 

check connection first
try with external clock
remove external oscilator
 

Note that it is NOT !!!! MISO/MOSI that you use to program a M128 , you use the same pins as for Uart1 i think ....

Do NOT connect the PEN pin to anything on the M128.

If those things are observed then you can program a M128 the same way as the other Mega's.

Btw: As the M128 comes with the 1Mhz internal clock enabled , you might want to check that your programming clcck is not set to high (ISP Clock) (with respect to the 1 Mhz it is using at the first programming cycle)

HTH

/Bingo
 

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