Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
09/08/10 17:28
Read: times


 
#178480 - EEPROM read write of 89s8253
Hi,
can any one give me working code for the 89s8253 it is some what differant than 89s8552 my code is

orl eecon,#00001000b
orl eecon,#00010000b

R_eeprom:

movx @dprt,a
mov a,data

xrl eecon,#00010000b
xrl eecon,#00001000b
end

W_eeprom:

mov dprt,#addr
mov a,dptr
movx a,@dptr
inc dptr
............
busy:
mov a,eecon
anl a,#000000100
jz busy
xrl eecon,#00010000b
xrl eecon,#00001000b
end
the above code is writing only one byte in the given address
for 89s8252 using WCON is doing well but 89s8253 is not

K M VANAN





end



List of 2 messages in thread
TopicAuthorDate
EEPROM read write of 89s8253            01/01/70 00:00      
   Atmel's AT89S8253 Primer            01/01/70 00:00      

Back to Subject List