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

Problems with overriding ds1232 reset to program at89s52

Status
Not open for further replies.
D

Dapper06

Newbie level 1
Joined
Apr 18, 2006
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,289
I have the ATAVRISP(original and mkII) and the AT89ISP programmers. The original serial atavrisp can override the reset signal while the mkII and at89isp programmers cannot. We believe it is due to output limitations of 74hc244 and 74vhc244.

Has anyone any ideas why the serial atavrisp(all actual atmel products) cannot reset the ds1232 to reprogram an AT89S52 onboard a pcb?

Can anyone help? No, I cannot redesign the pcb. It is a customer design. The customer is working on the problem also.

[I'm a tech with an electronics contract mfg.]
 

With 1232 monitor chip in this circuit you can manually (or by a digital output) issue RESET signal by holding pin 1 (pushbutton input) low ..

Regards,
IanP
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top