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
i used large memory model in target settings in keil simulator because my code is not compiling when i ve set small memory model.. should i use any external ram or eeprom to my chip before burning a code into that..
In your 1st post, you said:
"when i compiled i got as Program Size: data=9.0 xdata=7569 code=4140."
So your program requires nearly 8K of XDATA space - how is that provided in your system...?
no i don have external ram but the chip has 20 K Flash Memory, 256 Bytes On-chip RAM,hex file was 14k in size which i have burnt into uc..
Do you Have 8K of external RAM?
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