Discussion in "General help Guidance and Discussion" started by    adithyapaip    Jul 21, 2016.
Thu Jul 21 2016, 11:36 pm
Hi Guys..
i have a 8051 programmer which has 4mhz crystal used usually helps in uploading programmer,but my actual project uses 11.0592mhz. so if i use progammer with 4mhz crystal to burn the program but project uses 11.0592mhz so can i replace programmer crystal of 4mhz to 11.0592mhz..and if not how to substitute it because if i replace project crystal as 4mhz so that i can match with crystal the program delay and other many parameters will alter and i have to re program it thanks in advance.....
Fri Jul 22 2016, 12:34 am
The crystal on the programmer does not affect the final project.
Don't change it.
Fri Jul 22 2016, 12:48 am
I am using keil to do everthing in 8051,when I was selecting as usual 11.0592mhz while creating hex file and uploading but it was not working simple led blink also , after lots of debugging i found the programmer which I bought has uses 4mhz crystal so I created hex file using that frequency and uploaded it bingo I got the output so I hope my above question and this helps....
Fri Jul 22 2016, 01:07 am
That is curious, but very likely a co-incidence.
The original problem was probably fixed during your debugging period.

Try your test code at other frequencies , then at 11.0592mhz again.

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