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

micro controller 8051 disadvantages

Status
Not open for further replies.
saidutt

saidutt

Member level 2
Joined
Dec 4, 2009
Messages
43
Helped
6
Reputation
12
Reaction score
4
Trophy points
1,288
Location
india
Activity points
1,592
hi friends,
i am using 8051 micro-controller for scrolling dot matrix display unit.
my controller is going into hanging mode.why is that so?is there any specific reason for it. will all the micro-controller,will go into hang state.
please help me out
thank you
 

Double check your software, the microcontroller is probably executing a fatal endless loop, which is practically equivalent to a crash ..
In such a loop, the processor is in a state that it cannot exit under its own power, with the only means of escape being a reset ..

And any other microcontroller would do the same, if that's the problem ..

Also, look in Common Problems with Interrupts ..
**broken link removed**


IanP
:|
 

    saidutt

    saidutt

    Points: 2
    Helpful Answer Positive Rating
Apart from other ICs which are designed for a specific task, the Microcontroller (or Micrprocessor, ASIC or FPGA, etc.) is an integrated circuit programmed for an specific task. So if you program it wrong, it can freeze (go into a hang state).
 

    saidutt

    saidutt

    Points: 2
    Helpful Answer Positive Rating
Why don't u use the external watchdog IC like ADM1232..??:?:
If by any chance means by due to software or hardware its going in hand state...
then this IC will try to reset ur controller.... which will help in come out of hang loop and will avoid manual reset...
most of the controller get hang in noisy environment almost all....
check for the power supply noise or ripple..
if it is driving dot matrix led look for power consumption at worst condition means when all LEDs are ON at that time do ur controller is getting enough power, current to operate....
 

    saidutt

    saidutt

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top