hi guys, i m very new to microcontrollers..........i have been doin my research on 8051 for so long and finally i have got the rite project to put my hands on.......i have understood nearly everything abt 8051 except one small thing..............i m working on this stepper motor circuit....this circuit shows a programmer with 6 pins.............now what type of programmer cable ( plz if you could give me a link where in i can see the details of this programmer cable as well)and ISP software should i use there with 8051.......i would use be using keil microvision for the assembler program.....plz help

ps:this doubt arised because i had seen most programmer cable having 9 pins....neva heard of a 6 pin programmer

 

Maybe give us a link to the circuit you are asking about, then perhaps we can guide you.

 

i have given the required info on the previous post........jus let me know what type of serial port connector do we genrally use for 8051.........i studied on a site that u need a 9 pin connector.....but the circuit that i have has 6 pins in the connector..........so is there any connector/ programmer that has 6 pins at one end or is the circuit wrong....plz help......

 

So what would be the point of posting a link to your hard drive?.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

i m sorry my mistake........i had not saved the site...so cant load the link......but tell me what connector/controller cable do we need for a 8051........and its pin configuration and the pins of the 8051 that are to be attached to it

 

ok i read something abt a RS232 and DB9(9pins) and also abt DEC MMJ(6 pin)
now the circuit that i m using shows that few of the pins of 8051 go to a controller and the controller has 6 pins.......so does that mean that i buy a rs232db9 to DECMMJ connector and connect the decmmj pin to my microcontroller and rs232db9 end to my PC...........m i right?????

and by the way i have a rs232db9 to rs232db25 connector wire from an old modem.....is there any way to convert that rs232db25 end to an DECMMJ port so that i dont need to buy any thing

 

http://www.mytutorialcafe.com/Microc...089s51%202.htm

now take a look at this circuit.........
the header of 6 pins is supposed to be connected to the programmer.........now jus tell me what all componenets do i need for the those 6 pins to be connected to my PC. the same link tell me abt AT89s.........would connecting this 25 pin thing to my PC help me to program the 8051 directly or do i need something else also.........plz reply

 

Presumably you need a programmer?, the socket on the target obviously needs to match that on the programmer.

__________________
PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

It is the link at the upper right of the page under programmer, it's called
the ISP 89s.

http://www.mytutorialcafe.com/Microc...er%2089S51.htm

 

if he's taking about a 6 pin ISP, maybe he's talking about the one on my site

http://ikalogic.com/isp.php

if you want to build a programmer this one is simpe, many visitors built it.. wait, wait, wait... i think i recall your name mohsinans.. you left me a mail before right?

__________________
Ibrahim Kamal
check my electronics and robotics page: http://www.ikalogic.com/

 

hey ibrahim....i luv you for clearing my doubts but tell me one thin.....the following link.....

http://www.mytutorialcafe.com/Microc...er%2089S51.htm

also has a similar type of programmer but it shows that the end has to be connected to db 25 male.......how is that possible coz the parallel port in my PC has a male connector, so wudnt i need a female connector at the end of the wire..........

ans what abt ur circuit....does that also need a male connector at the end of the wire.......


and the IC that is show in the PICTURES of ur website connected to the db 25........which is that IC...would we need to remove that IC and place the 74ls08 there......plz clear these doubts....thank you

 

hey i asked a wrong doubt to you.....my PC has a female db 25.....but do clear my doubts abt that IC replacemment...thank you