There is a way to avoid the delay (my bootloader uses this technique)

- Start the Windows bootloader program
- The windows bootloader continually sends 'activate' character / CRC combination out of the serial port
- Reset the PIC
- The PIC checks for an 'activate' character for 100ms, if so, it jumps to the bootloader routine.

In practice, this works very well, avoiding the initial startup delay.

Cheers,
Shane.
http://www.workingtex.com/htpic/PIC_bootloader.htm

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Mike Harrison
> Sent: Wednesday, 18 July 2001 3:37 a.m.
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [pic] Bootloader & ICE
>
>
> On Tue, 17 Jul 2001 07:35:16 -0400, you wrote:
>
> >----- Original Message -----
> >From: "Byron A Jeff" <byron@CC.GATECH.EDU>
> >To: <PICLIST@MITVMA.MIT.EDU>
> >Sent: Monday, July 16, 2001 11:05 PM
> >Subject: Re: [pic] Bootloader & ICE
> >
> >
> >> On Tue, Jul 17, 2001 at 12:34:14PM +1000, Antonio L Benci wrote:
> >> > Check out:
> >> >
> >> >         http://www.dontronics.com/rfarmer.html
> >>
> >> Just a real quick comment or two from looking at the site:
> >>
>
> >> - It adds a 15 second boot delay to the system. Just a bit too invasive
> >for
> >>   my taste.
> >
> >This is a bit excessive, but could probably be tweaked much lower without
> >trouble.
> If you have any switches, buttons etc. on your product, use a power-up
> with button(s) held to enter the bootloader, to avoid the delay.
>
> --
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>
>

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