help please

[bocker59]

i cant get my programmer to read my atmega card . i keep getting message error failed to enter program mode , this is the first time it has happened, does anyone have any ideas i may borrow. i tried cleaning contact , put something behind card , nothing works , i cant erase flash either. helpppp. atmega 128 with ***, thanks in advance .

i am using a universal programmer and i have 2 cards that are getting same message.

[Crazy1_79]

did you take any software updates on your computer? are you using same setup as always?

[bocker59]

im using the same setup as usual no changes that im aware of . card stated to flash then stopped , i tried again and got the error message failed to enter program mode

[ntsbaldy]

try cleaning the contacts on the card.
check the fuse & lock settings

[Phottoman]

um ... er ... dumb question, but have these two cards been programed before? I wasn't going to say anything till I read that TWO cards were suffering.

CHECK YOUR CONNECTIONS. I was about to pull what hair I have left in my head when I realized that I had a cable undone. So - - - - - check and double check (just a thought).

Photto

[bocker59]

both cards were programmed , i was using them and i cleaned the contacts , cked the cable . used a different one, and tried another puter.
but thanks to e1 who replied, im sure it will get figgered out sooner or later.
thanks again

[alsouthster]

If you haven't got it going yet here's a C&P that may help...

C&P

Failed to enter program mode means that there is no comunication between the computer and the atmega.

Assuming the atmega is working then the problem is in the interfase between the pc and the atmega, so there are a lot of posible things wrong.

1.- bad contact between the atmega pads and socket pins.
2.- bad or wrong type cable from pc to programmer.
3.- wrong type of programmer for that atmega.
4.- wrong pc port selected in Jeepers/ file/preferences, the standard parallel port should be in address 0378.
5.- wrong type of parallel port selected in pc bios, try to change to SPP type.
6.- inspect the pins of the chip for trace of dirt or corrosion, clean with a brush.
7.- inspect atmega jumper for false contact.
8.- low voltage from parallel port, try the usb mod.