programming at89s51 in rs232

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aldevan

Joined: 02 Aug 2005
Posts: 147
Helped: 12
Location: São Paulo - Brazil

18 Oct 2007 8:49 rs232 at89s51 programer

I am needing a programmer to atmel at89s51 in serial rs232, I made the AVR910 but
in AvrProg doesn´t have suport to at89s51, any idea?

regards
Aldevan

folks

Joined: 30 Oct 2006
Posts: 183
Helped: 18
Location: Guadalajara

18 Oct 2007 8:53 programmer port serial rs232 at89s51

look here:
http://chaokhun.kmitl.ac.th/~kswichit/easy2/easy2.htm
regards

nandhu015

Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India

19 Oct 2007 3:14 at89s51 rs232

Have you tried this

http://www.lancos.com/siprogsch.html

Nandhu

hulahula

Joined: 15 Jul 2006
Posts: 33

19 Oct 2007 4:49 at89s51 programming

Hi this
http://www.c51c51.com/index.php?lay=show&ac=webboard

aldevan

Joined: 02 Aug 2005
Posts: 147
Helped: 12
Location: São Paulo - Brazil

20 Oct 2007 12:34 led flasher with at89s51

hi nandhu015, the the programmer you told me http://www.lancos.com/siprogsch.html doesn´t suport at89s51

in this site have some programmer but all is Parallel Port or serial RS232 but in parallel mode and I need a ISP (In-System Programming) mode, I try it http://www.8052.com/users/AT89S52InSystemProg/
but doesn´t work

I made avr910 work well to AT89s8252 but doesn´t suport at89s51

please if some one know a a place where can I get a programmer to at89s51 rs232 ISP mode, please tell me

nandhu015

Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India

22 Oct 2007 3:49 at89c51 isp rs232

Hi aldevan

http://www.8052.com/users/AT89S52InSystemProg/

worked well for me

if you have any problem, i will help you

regards
Nandhu

aldevan

Joined: 02 Aug 2005
Posts: 147
Helped: 12
Location: São Paulo - Brazil

22 Oct 2007 4:11 isp programming in at89s51 using rs232

hi nandhu015, thanks for reply, I made it but can´t work, is communication with PC but doesn´t work to programmer atmel at89s51, I monitor with oscilloscope the pins sck, mosi, miso, rst and this pins flash only when one time when a plug in the programmer in 5V, after this a click in RUN button but nothing happy, only the Led in pin 15 flash, but all others pin nothing, I have 5 at89c2051 and doesn´t
please if you have other idea tell me

regards
Aldevan

nandhu015

Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India

22 Oct 2007 17:24 at89s52insystemprog

Hi aldevan

This seems that there is no communication with pc and 2051.

Most of the times (which i do) the problem will be with cable and connectors or with ports. I usually mesh up with pins of d connector. Please check this.

awaiting for reply

Nandhu

aldevan

Joined: 02 Aug 2005
Posts: 147
Helped: 12
Location: São Paulo - Brazil

22 Oct 2007 17:47 at89s51 rs 232

Does someone know what is serial baud rate into PC and 89c2051?

mydreamhouse

Joined: 07 Oct 2005
Posts: 138
Helped: 3

22 Oct 2007 17:54 can rs232 work for in system programming

you can use atmel ISP Writter

Medtronic

Joined: 19 May 2005
Posts: 165
Helped: 11
Location: Egypt

23 Oct 2007 0:34 at89s51 rs232

Hi nandhu015
please if you do do this programmer upload all its data SCH,PCB,Tell us the baude
rate ...ets what about aldevan who said that
"hi nandhu015, thanks for reply, I made it but can´t work"

senthilkumar

Joined: 24 Nov 2001
Posts: 668
Helped: 4
Location: india

23 Oct 2007 5:06 at89s51 isp rs232

Use Maxium 8051

nandhu015

Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India

23 Oct 2007 11:48 at89s51 in system programming

Hi Medtronic

Pls give me your results. what you got when programming?

Or what type of error you are getting?

This will help me to guide you properly?

Nandhu

Last edited by nandhu015 on 24 Oct 2009 9:25; edited 1 time in total

Medtronic

Joined: 19 May 2005
Posts: 165
Helped: 11
Location: Egypt

23 Oct 2007 20:40 rs232 isp

Hi nandhu015
i didn't make this programmer yet ,i need to be sure if it worked or not and then i'll
start to make

Regards

aldevan

Joined: 02 Aug 2005
Posts: 147
Helped: 12
Location: São Paulo - Brazil

23 Oct 2007 20:49 programmer at89s51 rs232

hi Medtronic, it worked to mee too, my problem was in converter ttl to rs232 level, I put a maxim max232 and worked well, This programmer work in 57600 bps

Medtronic

Joined: 19 May 2005
Posts: 165
Helped: 11
Location: Egypt

23 Oct 2007 23:04 rs232 programming 8052

Thanks aldevan too much
i will Start to build one soon and feedback you

Regards

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23 Oct 2007 23:04 Ads

balaganesh

Joined: 25 Aug 2009
Posts: 1

23 Oct 2009 15:55 Re: programming at89s51 in rs232

i saw the circuit in 8052.com . they have given the firmware for 89c2051 which is 5.08kb. but flash memory size of 89c2051 is only 4 kb . how can i burn the firmware into it. please reply it urgent iam making a programmer fo 89s51 through rs 232

nandhu015

Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India

24 Oct 2009 9:24 Re: programming at89s51 in rs232

balaganesh wrote:

but flash memory size of 89c2051 is only 4 kb .

The flash is only 2Kb and not 4Kb. The hex file size will be higher from the original bytes used as the address and CRC is included

Nandhu

vbalaganesh

Joined: 28 Oct 2009
Posts: 1
Location: tamil nadu madurai

28 Oct 2009 14:07 Re: programming at89s51 in rs232

hi nandu . i cant understand ur answer . i am going to use universal pgmer kit (in my college )to burn the firmware(5.08K) in 89c2051 . whether there will be any problem while burning ?