Re: PoR and AHB Configuration in WINCE



On May 21, 6:57 pm, "Steve Maillet \(eMVP\)"
<nos...@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Software can't control POR hardware since it's not running when the POR
occurs! It is possible that software can have acces to the POR hardware
after the processor starts to execute instructions so it can read power
status and or manualy cuase a reset, etc...

Generally speaking,AHBis internal to the ARM core processor and not
something the software needs to deal with. Some processors do allow a level
of manipulation of things, mostly to enable or disable individual devices
and occasionally to set the processor permission level required to access
the device. You will need to read the documentation for the specific
processor you are using for more details.

--
Steve Maillet
EmbeddedFusion
smail...@xxxxxxxxxxxxxxxxxx<Gajanan.A...@xxxxxxxxx> wrote in message

news:1179726312.693579.150270@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx



Hi all,

I need detail information on Por(Power on reset) andAHB
Configuration.As far my information The power-on reset (PoR) is an
electronic device incorporated into the integrated circuit that
detects the power applied to the chip and generates a reset impulse
that goes to the entire circuit placing it into a known state.
AnAHBis a Advanced High-Performance Bus, System bus connecting ARM
cores to peripheral circuits , I/Os , memory and IPs.

All this is H/w related.Is there any software part or drivers attached
to POR orAHB?Do we need to wite any code for proper functiong of POR
andAHB?

Regards,
Gajanan- Hide quoted text -

- Show quoted text -

Thanxs Andrew and Steve for much descriptive reply.I am really new to
WINCE device driver and BSP development.Well, thanx again for both of
you.

Regards,
Gajanan

.



Relevant Pages

  • Re: Yet another resetting question
    ... Same fused circuit, different fused circuit, doesn't matter. ... pins at that location never reset, I'd like to focus on the differences ... (but have never reset at my location where the power is apparently not ...
    (rec.games.pinball)
  • PoR and AHB Configuration in WINCE
    ... I need detail information on Por(Power on reset) and AHB ... that goes to the entire circuit placing it into a known state. ... An AHB is a Advanced High-Performance Bus, ... to POR or AHB?Do we need to wite any code for proper functiong of POR ...
    (microsoft.public.windowsce.platbuilder)
  • Re: pin 40 u9 bally mpu -17 no voltage present
    ... The reset line should just blip LO for a split second at power up, ... your Valid Power Detect circuit is somewhat operationally ... I've got a Bally 8Ball with a rebuilt mpu that is locked on. ...
    (rec.games.pinball)
  • Re: Initializing a Flip-Flop on Power-up
    ... once it's reset, it's reset! ... if it's not a Schmitt input then rather bizarre things can happen ... I've got a small toggle circuit that I'm using to drive a shutdown ... the circuit upon power up will default to one state or the ...
    (sci.electronics.design)
  • Re: Spartan 3 chips in power up
    ... Spartan 3 is held in reset until all three power supplies are fully up. ... whether the various power voltages are above or below the internal ... The POR circuit prevents configuration from starting until all three ...
    (comp.arch.fpga)