Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Ask programmer for DS87C550

Status
Not open for further replies.
B

binhqt

Newbie level 3
Joined
Aug 9, 2005
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,308
I have just get DS87C550 and DS87C530 (samples from dallas).

But i don't know how to program load for it.

Have you any one have the schematic to programmer for it (load the hex file into them).

And i have another question.
I have a DS80C320. it's a romless, and i know that if i want ot use it, i must use an external memory. But i have no experience in this field.

Have any one have experience in this field help me ?

Schematic and source code sample.

Thanks.
 

Go to this site:
**broken link removed**
There you will find AT89C52 programmer. You can use the same programmer to program DS87C550 or any other 8051-core microcontroller with Eprom.
In your case you will need to build a ZIF adapter 40-pin 8051-to-87C550.
Connect only these pins which are used in programming.
If you have problems - come back and ask questions. There are plenty of members ready to help you ..

Connecting external EPROM/ROM, RAM, I/Os and RS-232:
https://www.pjrc.com/tech/8051/dev-board-desc.html
Bear in mind that code for external EPROM is identical with code for internal EPROM and only correct hardware connection is required.

Regards,
IanP
 

How to build a ZIF adapter 40-pin 8051-to-87C550.
Have any one Who have even do this, please give me a schematic.
 

Which one do you have:
80-PIN QUAD FLAT PACK (14.0 MM X 20.0 MM) or
68-PIN WINDOWED CLCC
ZIF test sockets are quite expencive ..
In any case you may need a PLCC68-DIP-40 adaptor, similar to that on from the attached pdf file. As I said, on this mini-PCB you will need to connect only these lines which are required for programming 40-pin 8051 versionP1.0-P1.7 as A0-A7, P2.0-P2.7 as A8-A15, P0.0-P0.7 as D0-D7, XTAL1, ... see link from previous post..
Regards,
IanP
 

The link should be OK, as when I clicked on it it opens that site ..
Anyhow, attached is a schematic from it ..
Regards,
IanP
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top