Hi ezo
I made my programmer and try to test it but none of address buss work correctly
I mean I do not have any voltages on pin A-22 to A-0
In addition, when I run the programmer only red led go on
Moreover, i have my 7805 so hot
I cheek ic vcc and they are 4.97v
Moreover, 7812 shows 12.5v
Please help me to solve the problem
Thank
arash ebadi
Programmer hardware problem
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- Сообщения:2
- Зарегистрирован:Вс мар 27, 2011 7:57 pm
Re: Programmer hardware problem
is it ezoflash4v4 ?I made my programmer
Check installed chip positions (pin1). Note 4015 all are not in same direction.try to test it but none of address buss work correctly
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- Сообщения:2
- Зарегистрирован:Вс мар 27, 2011 7:57 pm
Re: Programmer hardware problem
ezo 4v5
all ics place correctly
all ics place correctly
Re: Programmer hardware problem
Check visually programmer with magnifier under good light.
Get multimeter and check no shortages.
Attention on all Vcc lines ! Check no shorts on top layer lines between IC pins.
Get multimeter and check no shortages.
Attention on all Vcc lines ! Check no shorts on top layer lines between IC pins.