Re: GTA02 powered USB host port and power management (Was: Re: Worries are gone? (was FM Tuner for RDS on the Neo ?))
> >I'll need to research this to get the full story, first what caused the > problem(s) in GTA01, and then how they were fixed in GTA02. > > >Michael > There is quite a lot of info here which probably need split into GTA01v4 and GTA02 sections. In particular some of the tables show which type of speeds offer what rewards http://wiki.openmoko.org/wiki/Neo1973_GTA01_Power_Management JW ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GTA02 powered USB host port and power management (Was: Re: Worries are gone? (was FM Tuner for RDS on the Neo ?))
Awesome! Thanks for the speedy reply. >> 1) Confirm/Deny wether GTA02 will have a powered USB port >GTA02 will have a powered USB port. >> 2) Go into more detail of how GTA02 power management has improved over GTA01. >I'll need to research this to get the full story, first what caused the problem(s) in GTA01, and then how they were fixed in GTA02. >Michael ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
Am Do 31. Januar 2008 schrieb Pierre Hébert: > On Thursday 31 January 2008, joerg wrote: > > see other posting about magnetic compass chip interfacing with I2C. > > It's 4 wires. > > If getting audio from the FM radio IC is needed, it will probably need > some connections with the WM8573 audio chip too. > > Pierre. That's right. But Lionel asked "how difficult is I2C" and he planned to acquire TMC data IIRC. I didn't look to the chip's datasheet, but i guess TMC will come by I2C? OTOH the remarks on RF-interference that came up with compass chip, are much more applicable here with radio. In the end you'll need sorta Antenna for this device. For audio you might consider using one of the so far unused inputs of wolfson mixer chip. Though this is a more demanding task to keep out RF-interference here (e.g shielding, ferrite blocks etc) j ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
On Thursday 31 January 2008, joerg wrote: > see other posting about magnetic compass chip interfacing with I2C. > It's 4 wires. If getting audio from the FM radio IC is needed, it will probably need some connections with the WM8573 audio chip too. Pierre. ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
Am Do 31. Januar 2008 schrieb Pierre Hébert: > On Thursday 31 January 2008, Lionel Dricot wrote: > > Thanks, > > > > It looks indeed like what I want. > > > > How difficult is it to access the i2c bus ? > > From the software point of view it is quite easy, the linux kernel > provides the required infrastructure to access i2c devices. Examples can > be found in linux/drivers/i2c/chips/. I suppose a simple chip driver > could propose to set the tuner frequency with a /sys interface for > example. > I have no idea of the required hardware modifications. see other posting about magnetic compass chip interfacing with I2C. It's 4 wires. j ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
On Thursday 31 January 2008, Lionel Dricot wrote: > Thanks, > > It looks indeed like what I want. > > How difficult is it to access the i2c bus ? From the software point of view it is quite easy, the linux kernel provides the required infrastructure to access i2c devices. Examples can be found in linux/drivers/i2c/chips/. I suppose a simple chip driver could propose to set the tuner frequency with a /sys interface for example. I have no idea of the required hardware modifications. Pierre. ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
Thanks, It looks indeed like what I want. How difficult is it to access the i2c bus ? On Jan 31, 2008 9:46 AM, Pierre Hébert <[EMAIL PROTECTED]> wrote: > On Wednesday 30 January 2008, Lionel Dricot wrote: > > 1) I want to develop an application linked to a FM tuner (with data, > > like RDS). Any idea on how I could add a FM tuner on a neo 1973 ? > > Maybe with USB ? Or a chip that I could buy separately ? > There are some chips, like the Philips TEA5764HN, that can be put on the > i2c bus (see > http://www.nxp.com/acrobat_download/datasheets/TEA5764HN_2.pdf). They > provide FM RDS and can be used for TMC. However I don't think it would > be an easy task to directly integrate such a chip on the Neo. > > cheers, > > Pierre. > > ___ > OpenMoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community > ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
On Wednesday 30 January 2008, Lionel Dricot wrote: > 1) I want to develop an application linked to a FM tuner (with data, > like RDS). Any idea on how I could add a FM tuner on a neo 1973 ? > Maybe with USB ? Or a chip that I could buy separately ? There are some chips, like the Philips TEA5764HN, that can be put on the i2c bus (see http://www.nxp.com/acrobat_download/datasheets/TEA5764HN_2.pdf). They provide FM RDS and can be used for TMC. However I don't think it would be an easy task to directly integrate such a chip on the Neo. cheers, Pierre. ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
GTA02 powered USB host port and power management (Was: Re: Worries are gone? (was FM Tuner for RDS on the Neo ?))
Hi Oliver, Oliver wrote: Wow! That's really great news as that and battery time were my two main worries. It would be lovely if Michael could: 1) Confirm/Deny wether GTA02 will have a powered USB port GTA02 will have a powered USB port. 2) Go into more detail of how GTA02 power management has improved over GTA01. I'll need to research this to get the full story, first what caused the problem(s) in GTA01, and then how they were fixed in GTA02. Michael /Oliver I haven't heard anything about it for a while, but IIRC freerunner is supposed to have a powered USB port -- Jeff O|||O ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Worries are gone? (was FM Tuner for RDS on the Neo ?)
Wow! That's really great news as that and battery time were my two main worries. It would be lovely if Michael could: 1) Confirm/Deny wether GTA02 will have a powered USB port 2) Go into more detail of how GTA02 power management has improved over GTA01. /Oliver > I haven't heard anything about it for a while, but IIRC freerunner is > supposed to have a powered USB port > -- > Jeff > O|||O ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
the GTA02 will provide 5v at 100mA on the USB >>> Tilman Baumann <[EMAIL PROTECTED]> 01/30/08 1:27 PM >>> Jeff Andros wrote: > On Jan 30, 2008 6:07 AM, Tilman Baumann <[EMAIL PROTECTED]> wrote: > >> This is a usual question. Although you could configure the USB port in >> host mode. It would be unpowered. > >> Regards >> Tilman > > I haven't heard anything about it for a while, but IIRC freerunner is > supposed to have a powered USB port You could be right. But i did not find any proof on the wiki. But to be honest, i thought i heard that too some time... Tilman ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
Jeff Andros wrote: On Jan 30, 2008 6:07 AM, Tilman Baumann <[EMAIL PROTECTED]> wrote: This is a usual question. Although you could configure the USB port in host mode. It would be unpowered. Regards Tilman I haven't heard anything about it for a while, but IIRC freerunner is supposed to have a powered USB port You could be right. But i did not find any proof on the wiki. But to be honest, i thought i heard that too some time... Tilman ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
On Jan 30, 2008 6:07 AM, Tilman Baumann <[EMAIL PROTECTED]> wrote: > This is a usual question. Although you could configure the USB port in > host mode. It would be unpowered. > Regards > Tilman I haven't heard anything about it for a while, but IIRC freerunner is supposed to have a powered USB port -- Jeff O|||O ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
> How about a dedicated radio box with separate batteries and remote > control and sound via Bluetooth. > Bluetooth has a audio profile, and adding a simple control port sounds > not too impressive to me. It doesn't fit in my needs for RDS and TMC, unfortunatly :-( (or at least, I don't see how to do that. Any suggestion is of course welcome) Thanks for the suggestion, Lionel ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: FM Tuner for RDS on the Neo ?
Lionel Dricot wrote: Hello, I'm very interested by the Neo1973 and I was thinking about doing some hardware/software hacking on it. I have several questions. 1) I want to develop an application linked to a FM tuner (with data, like RDS). Any idea on how I could add a FM tuner on a neo 1973 ? Maybe with USB ? Or a chip that I could buy separately ? This is a usual question. Although you could configure the USB port in host mode. It would be unpowered. So there is no real good way to add external hardware. How about a dedicated radio box with separate batteries and remote control and sound via Bluetooth. Bluetooth has a audio profile, and adding a simple control port sounds not too impressive to me. Regards Tilman ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
FM Tuner for RDS on the Neo ?
Hello, I'm very interested by the Neo1973 and I was thinking about doing some hardware/software hacking on it. I have several questions. 1) I want to develop an application linked to a FM tuner (with data, like RDS). Any idea on how I could add a FM tuner on a neo 1973 ? Maybe with USB ? Or a chip that I could buy separately ? 2) Other harware question : is there a DSP in the Neo1973 ? I imagine some sound signal processing that would requires a DSP. I don't see how I could add a DSP afterward but any solution is welcome :-) 3) Last but not least : If I order my neo1973 today, when will I receive a) the 1973v1, b)the FreeRunner. I want to develop as quickly as possible and, if there is compatibility and that the v2 is too late, I don't mind buying a v1 now and a v2 later. Thanks in advance for your answers, ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
