View Full Version : Program chip whit parallel port

10-09-2008, 12:20 AM
Can we simply make program and make some simple connections with the parallel port to program a uc?

If so how ?
One more thing will solve my query if u can tell me what all happens in the chip burning process happens tell me what all happens

10-09-2008, 12:35 AM
Hello pulin ! :)

It all depend on what uC you are using.

Post the type (8051/AVR/PIC etc.) first.

Although,in general,yes,that's the way a lot of people program uCs.

However, parallel ports have started to disappear from PCs.
And OS like XP make it very very tough to use the parallel ports on PCs that still have them (for prog. a uC).

As for the chip burning , again , it depends on the uC.
There can be several ways to program the same uC (like ISP,JTAG etc.)
Read the datasheet of the controller to know more.

10-09-2008, 08:19 AM
I have a ATmel 8951 uc. Can u please tell me the method to do that....

( Please avoid double posting!

10-09-2008, 08:43 AM
I have a ATmel 8951 uc. Can u please tell me the method to do that....

10-09-2008, 10:19 AM
@pulinagrawal: There are several 80x51 parallel port programmer schematics that you will find on the internet. Personally my favorite is Shiao's version (clickie) (http://www.kmitl.ac.th/~kswichit/shiao/prog.htm). It works with Prog51.

Hope this helps.


Debu :)

10-09-2008, 08:10 PM
You said atmel 8951. There are many varriant of 8051 based MCUs from atmel. The programming method are different. Atmel has flash based 8051 MCU with following programming methods
1) Flash - Parallel Programming like 89c2051 (Not easy to program,require more wires/pins to program)
2) ISP based - like 89s51,89s51,89s2051 ... (Easy to program ,3 wires required). These are popular.
3) ISP based with inbuilt bootloader like 89c51RD2 89c51AC3 ... etc they come in PLCC package. They can be programmed with RS232 protocol directly.

10-11-2008, 10:41 PM