Re: SiRF firmware update

From: Sam Storm van Leeuwen (samsvl_at_nlr.nl)
Date: 11/30/04 

Date: 30 Nov 2004 08:58:48 GMT

Joop van der Velden <pe1dna@amsat.org> wrote in
news:VA.0000051f.00ab6e58@amsat.org:

> Sam Storm van Leeuwen wrote:
>
>> > After upgrading firmware to 1.3.4, the unit comes up after a cold
>> > start in SiRF binary mode at 19.2kbps. I can set it to NMEA 4k8 but
>> > after a cold start it is back again at 19k2 SiRF binary.
>> >
>> > I'd like to set the cold start defaults. Have found a utility for
>> > ublox SiRF-based receiver to do this, that modifies the code sent to
>> > the GPS receiver.
>> >
>> > Is such a program also available for Leadtek 9520 SiRF-1 based
>> > module?
>
>> SiRF used to have sirfdemo on their site. Supports both SiRF I and II
>> Let me know if you can't find it, I may still have it somewhere on my
>> PC
>
> Thanks for your reply, Sam.
> I do have Sirfdemo, but unless i miss something, it does not let me
> change the cold boot mode of the receiver. It will let me change mode,
> but only until the next cold start (start 'blank' without backup
> power).
>
> I also have sirfprog and files (motorola s-records) to program the
> module's flash chip. But in order to change the cold boot defaults
> you need to change some magic bytes in the code that is going to be
> downloaded to flash. Or that is how i see it at the moment.
>
> Now i'd love to have the module cold boot in NMEA mode....
>
Joop,

Sorry - out of my league !

Groeten,

Sam