Hi people!!!
I build a programer device that work with: AT89c51,89C52,89C55,89C2051 and 27C256.
When ATMEL change AT89C55 to AT89c55WD i have many problems and need make modifications in programer circuit, but now i can record, read and set bit locks but if i set bit-look i can´t erase.
I send many emails to ATMEL and theys haven´t solutions.
If you have solution please i need too.
Tank´s