Discussion in "General help Guidance and Discussion" started by    sherline123    Mar 6, 2016.
Sun Mar 06 2016, 12:38 PM
#1
Hi. I am new at here. I want to ask is it possible to burn/program EPROM by using 8051? The eprom that i wish to program is EPROM 27128. @@
Mon Mar 07 2016, 03:17 AM
#2
It has been years since I programmed eproms.

You will need to get the spec sheet from the maker, as not all 27128s are the same.
Most need a programming voltage of 12 volts or more.
The exact value varies.

You will need to make a programmer to drive the 27128 pins, both address and data.
Also you need to switch reset and Vpp (12v).

But yes , an 8051 could do most of the work.
You need a strong UV light source to erase the eprom.




[ Edited Mon Mar 07 2016, 03:18 AM ]
Tue Mar 08 2016, 03:26 AM
#3


It has been years since I programmed eproms.

You will need to get the spec sheet from the maker, as not all 27128s are the same.
Most need a programming voltage of 12 volts or more.
The exact value varies.

You will need to make a programmer to drive the 27128 pins, both address and data.
Also you need to switch reset and Vpp (12v).

But yes , an 8051 could do most of the work.
You need a strong UV light source to erase the eprom.



ExperimenterUK


thanks for the reply. sorry i am just a beginner. So i am going to use the eprom as the part of the memory of 8051 or i just use the 8051 GPIO to program it?
Tue Mar 08 2016, 03:56 AM
#4


thanks for the reply. sorry i am just a beginner. So i am going to use the eprom as the part of the memory of 8051 or i just use the 8051 GPIO to program it?

sherline123


I'm not sure what you mean.
The 8051 can use EPROMs such as the 27128 as external memory
but read only. (ROM)
To write to an EPROM takes extra hardware, a separate programmer.

One way would be..
Send a byte to the 8051 through the serial port.
Use the ports on the 8051 to set the address and
data pins of the 27128.
Use the remaining 8051 i/o pins to switch E,P and G.

Write the byte, then read it back.
When the byte is programmed,get the next.

Why are you programming a 27128 ?


[ Edited Fri Mar 11 2016, 04:06 AM ]

Get Social

Information

Powered by e107 Forum System

Conversation

Tue Jan 14 2020, 07:08 AM
shubham kharade
when i am trying to simulate the program in Proteus 8 professional, I am getting some errors as cannot find module file dhtxx.md can u help me
Tue Dec 17 2019, 01:44 PM
Devangi
hello..i am programming industrial timer using 8051 with 24lc64 eeprom. i have query in storing the 3 diff value in eeprom with enter button. can anyone share c code ?
Tue Dec 17 2019, 10:30 AM
Andrius
Hello. Can anyone share the code in Bascon and scheme in Proteus?
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

Downloads

Comments

usb5962
Sat Jan 11 2020, 10:42 AM
elt
Tue Jan 07 2020, 06:53 PM
mg3914697
Tue Jan 07 2020, 12:42 PM
afds43
Sun Dec 29 2019, 05:54 AM
Rupeshpatil
Fri Dec 27 2019, 06:14 PM
pyxus
Sat Dec 14 2019, 12:31 PM
Istika
Thu Dec 12 2019, 12:04 PM
nabiha_anaya
Sun Dec 08 2019, 09:16 AM

Online

Guests: 43, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38115
Newest member: usb5962
Forum Activity
Billz Avatar
Posted By Billz
Sat Jan 11 2020, 05:43 PM
hi everyone please attached files are my c code fo...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jan 07 2020, 08:18 PM
Not a stupid question.Setting up "Eclipse" can be...
elt Avatar
Posted By elt
Tue Jan 07 2020, 07:06 PM
So i have just began learning programming micros a...
Billz Avatar
Posted By Billz
Mon Jan 06 2020, 09:22 PM
I think it would be better if you guys try to come...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Jan 06 2020, 12:22 AM
Can you post a circuit diagram and any code you ha...
Billz Avatar
Posted By Billz
Sun Jan 05 2020, 08:17 PM
Need help regarding C code (specifically for PIC 1...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Dec 30 2019, 06:42 PM
Can you give more details of your problem.
Rupeshpatil Avatar
Posted By Rupeshpatil
Fri Dec 27 2019, 06:21 PM
How to copy program my old microcontroller to new ...
ilylily07 Avatar
Posted By ilylily07
Thu Dec 12 2019, 02:26 PM
wil do.thank you for your advice!
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Dec 12 2019, 07:13 AM
Something like this ?https://www.bing.com/videos/s...