hi am using 89c55 and wrote a code in c which acquires data from a serial device performs calculations and the gives an alarm when an abnormality is detected. when i compiled i got as Program Size: data=9.0 xdata=7569 code=4140. i used large memory model.it works well when i checked with keil simulator but when i burnt into my uc i don see any output. iam new to uc's should i add any eeproms before burning?? please help me out. thanks in advance.
regards, deepthi
Oh yes they do!
The 8051 architecture limits the CODE size to 64K - but there are 8051-based chips available with >64K Flash (eg, SiLabs).
Depends on view. The 8051 chips with > 64kB flash has the flash mapped for CODE space. It's just that you will need banking or similar.
But have you seen any chip manufacturer selling a 8051 with flash for the RAM area - unless it has the overlapped CODE/XDATA regions I mentioned?