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

ISP programming for P89LPC922 and P89C51RD2BN chips

Status
Not open for further replies.
S

SSP

Junior Member level 3
Joined
Mar 3, 2007
Messages
27
Helped
2
Reputation
4
Reaction score
1
Trophy points
1,283
Location
Mumbai
Activity points
1,464
p89c51rd2bn

i want to program the chips P89LPC922 and P89C51RD2BN using In-System Programming(ISP).I do not want to keep the RS232 interface connected after burnig the program on the chip.
can someone help?
thank u
 

p89lpc922 isp

You have to go in for stand alone programming.
For 89C51, whenever u want to program the chip, you make the PSEN (bar), pin as low. This is your PROGRAMMING MODE
Once u finish programming, you just have to make PSEN (bar) as open. It is internally pulled up. THis is your RUN MODE.
 

p89lpc922 programming

cant get pls explain
 

p89lpc922 isp program

As stated by headcracker you have to use PSEn Pin eigher connect it with a switch having one end connect to pull downd resisor and other to ground and you can move in pprograming and run mode with the help of switch
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top