Thanks everybody.Sorry for being late in response.
I've done it,again without eye(oscilloscope),mainly because I knew the working circuit.We,who do not have oscilloscope,professional programmer or sophisticated simulator/emulator,keep on thinking/discussing/
reading how to succeed without them.Its an art.Yes and great fun too.
In fact if I my electronics fundamentals were clearer,like say Kai,my actual absolute necessity for buying oscillope would have become even less!
Hence Kai,my dear Sir,where can I find details of designing that PNP (smooth) switching transistor (Q2 2N2907 in Atmel,T3 2N3907 in Ashim Khan) stage
getting input from 74/74LS/74HCT/CD buffer/driver/gates.I shall be obliged if somebody helps me reducing my search/study load.
And my dear Erik,Sir.You mentioned improper/incomplete yet apparently O.K. flash/memory programming by not-so-professional devices.Where can I read more about it?
Regards
A.S.Rudra