is this possible with at89c51ed2
on first pressing the key i write data 0cch to location 05000h
then i read the data from 05000h and move it on p0
p0 will be equal to 0cch
then on second key press i write data 0aah to loction 05000h again without erasing loction 05000h.then i read the data from location 05000h.and move it on 01.will the data be 0aah.
whati mean to ask is whether wecan overwrite a location without erasing the whole block .
please reply.
thankyou verymuch jan and erik
regards
harshada