Discussion in "General help Guidance and Discussion" started by    adithyapaip    Jul 21, 2016.
Thu Jul 21 2016, 06:06 PM
#1
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.....
Thu Jul 21 2016, 07:04 PM
#2
The crystal on the programmer does not affect the final project.
Don't change it.
Thu Jul 21 2016, 07:18 PM
#3
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....
Thu Jul 21 2016, 07:37 PM
#4
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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Thu Nov 21 2019, 12:30 PM
raj2555
how to interface 8051 microcontroller with NRF24L01+ module
ExperimenterUK
Sat Oct 12 2019, 10:23 PM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 10:18 AM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 07:37 AM
Nathaniel
I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Wed Sep 18 2019, 08:48 PM
Caryn Kover
Thank you for your time,
ExperimenterUK
Mon Aug 05 2019, 07:09 PM
@Ismail ..post in forum, give details
Mon Aug 05 2019, 04:33 PM
Ismail balghmi
Hello. Please I won't download
ExperimenterUK
Wed Jul 24 2019, 12:47 AM
@BUSTER123 Please post in the forum
Tue Jul 23 2019, 06:13 PM
BUSTER123
hello! newbie here. i am kind of a guy who hates using ready - made existing libraries, so this helped a lot as i was trying to control and write to a character lcd display. however, i can't figure out how to set the cursor position. for example, i want to set it to the 5th column in the first row, so position 5. so according to the table, i am sending 10000101 on the 8 data lines of the lcd (register select pulled low). the cursor does not move there however. and i cant move the cursor left or right too. is it something wrong that i am doing? thank you.
ExperimenterUK
Thu Jul 11 2019, 07:55 PM
@ramos https://www.theengineeringprojects.com/2017/09/l298-motor-driver-library-proteus.html

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