PLEASE INFO NEEDED mcs48 adapter question programming 8749
Добавлено: Пн янв 14, 2013 7:36 pm
Hi forum ,
Has anyone ever build the mcs48 adapter as found on mpu5.tripod.com ??
I am facing a strange problem and cannot find the source of it .
i try to program an intel 8749 , set vpp to 21 volt , choose the correct configuration in 98D12C3.
But , get a strange result when doing a blank check ( chip has been erased ).
0000upto 0400 the fill is 00 , from 0400 to 07F0 it is 04
So , i assume the adapter contains an error but where ??
Any help highly appretiated.
techy
Has anyone ever build the mcs48 adapter as found on mpu5.tripod.com ??
I am facing a strange problem and cannot find the source of it .
i try to program an intel 8749 , set vpp to 21 volt , choose the correct configuration in 98D12C3.
But , get a strange result when doing a blank check ( chip has been erased ).
0000upto 0400 the fill is 00 , from 0400 to 07F0 it is 04
So , i assume the adapter contains an error but where ??
Any help highly appretiated.
techy