Talk:Gta02-core - Revision history

Naught101: /* No change to case design */

2010-01-11T22:27:25Z

‎No change to case design

Werner: audio improvements are very desirable but "best-effort"

2009-06-06T01:20:56Z

audio improvements are very desirable but "best-effort"

Werner: there be beads !

2009-06-05T23:29:20Z

there be beads !

Mazikeen at 14:57, 5 June 2009

2009-06-05T14:57:37Z

Werner: USB 2.0 wil have to wait for the next project

2009-05-23T07:48:16Z

USB 2.0 wil have to wait for the next project

Pini: /* What about USB 2.0? */

2009-05-22T08:45:48Z

‎What about USB 2.0?

Werner: link posting of case ideas

2009-05-21T03:25:17Z

link posting of case ideas

Daveb: /* No change to case design */

2009-05-19T21:41:33Z

‎No change to case design

Daveb: /* No change to case design */

2009-05-19T21:34:48Z

‎No change to case design

Werner: comments on acceleration sensors and new case, added titles

2009-05-19T18:53:06Z

comments on acceleration sensors and new case, added titles

@@ Line 12: / Line 12: @@
 [[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I've [http://lists.openmoko.org/pipermail/gta03/2009-May/000207.html posted some ideas] to the gta03 list.
 =What about USB 2.0?=
 [[Pini]]: The title says it all :) It would be for sure a great improvement. Thanks.

← Older revision		Revision as of 01:20, 6 June 2009
Line 24:		Line 24:
	=Bass fix=		=Bass fix=
	[[Mazikeen]]: Can we finally sort the low dc blocking cap value and parallel resistor value Joerg identified before release?		[[Mazikeen]]: Can we finally sort the low dc blocking cap value and parallel resistor value Joerg identified before release?
		+
		+	[[Werner]]: My plan is to pick up as many fixes as possible from what we know is broken in A7, from what was projected for A8, and also from the GTA03-6410 circuit. This is limited by the riskiness of changes and their impact on the BOM. I also hope Joerg can continue to give us guidance on getting the audio right. Making the "perfect" GTA02 isn't the main goal of this project, but if we can solve problems without jeopardizing the project, we should.

@@ Line 19: / Line 19: @@
 =Proper buzz fix=
 [[Mazikeen]]: Will there be a mod to prevent the ingress of GSM signal via the headset mic input, or indeed any other way t might find its way inside the can?
 =Bass fix=
 [[Mazikeen]]: Can we finally sort the low dc blocking cap value and parallel resistor value Joerg identified before release?

← Older revision		Revision as of 14:57, 5 June 2009
Line 16:		Line 16:

	[[Werner]]: I wish :-) Unfortunately, the S3C2442 can only do USB 1.1.		[[Werner]]: I wish :-) Unfortunately, the S3C2442 can only do USB 1.1.
		+
		+	=Proper buzz fix=
		+	[[Mazikeen]]: Will there be a mod to prevent the ingress of GSM signal via the headset mic input, or indeed any other way t might find its way inside the can?
		+	=Bass fix=
		+	[[Mazikeen]]: Can we finally sort the low dc blocking cap value and parallel resistor value Joerg identified before release?

← Older revision		Revision as of 07:48, 23 May 2009
Line 14:		Line 14:
	=What about USB 2.0?=		=What about USB 2.0?=
	[[Pini]]: The title says it all :) It would be for sure a great improvement. Thanks.		[[Pini]]: The title says it all :) It would be for sure a great improvement. Thanks.
		+
		+	[[Werner]]: I wish :-) Unfortunately, the S3C2442 can only do USB 1.1.

← Older revision		Revision as of 08:45, 22 May 2009
Line 12:		Line 12:

	[[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I've [http://lists.openmoko.org/pipermail/gta03/2009-May/000207.html posted some ideas] to the gta03 list.		[[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I've [http://lists.openmoko.org/pipermail/gta03/2009-May/000207.html posted some ideas] to the gta03 list.
		+	=What about USB 2.0?=
		+	[[Pini]]: The title says it all :) It would be for sure a great improvement. Thanks.

← Older revision		Revision as of 03:25, 21 May 2009
Line 11:		Line 11:
	[[daveb]]: For gta02-core, we're planning to build something that will fit inside the GTA02 case. A new Id involves lots of complexity and cost - designing the case, manufacturing molds, properly understanding the EMI properties of the new case, and designing the aerials that need to fit in it. [Though as Werner clarified, this wasn't intended to discourage folk that want to investigate a new case. New case designs would be fantastic, but aren't part of what we intend to deliver through gta02-core. We will be working to a board which fits the existing gta02 case - or any alternative case which works for gta02 boards.]		[[daveb]]: For gta02-core, we're planning to build something that will fit inside the GTA02 case. A new Id involves lots of complexity and cost - designing the case, manufacturing molds, properly understanding the EMI properties of the new case, and designing the aerials that need to fit in it. [Though as Werner clarified, this wasn't intended to discourage folk that want to investigate a new case. New case designs would be fantastic, but aren't part of what we intend to deliver through gta02-core. We will be working to a board which fits the existing gta02 case - or any alternative case which works for gta02 boards.]

−	[[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I'~~ll post~~ some ideas to the gta03 list.	+	[[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I've [http://lists.openmoko.org/pipermail/gta03/2009-May/000207.html posted some ideas] to the gta03 list.

@@ Line 9: / Line 9: @@
 =No change to case design=
-[[daveb]]: For gta02-core, we're planning to build something that will fit inside the GTA02 case. A new Id involves lots of complexity and cost - designing the case, manufacturing molds, properly understanding the EMI properties of the new case, and designing the aerials that need to fit in it.  [Though as Werner later added, this wasn't intended to discourage folk that want to investigate a new case.  New case designs would be fantastic, but aren't part of what we intend to deliver through gta02-core.  We will be working to a board which fits the existing gta02 case - or any alternative case which works for gta02 boards.]
+[[daveb]]: For gta02-core, we're planning to build something that will fit inside the GTA02 case. A new Id involves lots of complexity and cost - designing the case, manufacturing molds, properly understanding the EMI properties of the new case, and designing the aerials that need to fit in it.  [Though as Werner clarified, this wasn't intended to discourage folk that want to investigate a new case.  New case designs would be fantastic, but aren't part of what we intend to deliver through gta02-core.  We will be working to a board which fits the existing gta02 case - or any alternative case which works for gta02 boards.]
 [[Werner]]: people interesting in experimenting with case (re)design are entirely welcome to. It's just out of scope for gta02-core. I'll post some ideas to the gta03 list.

@@ Line 1: / Line 1: @@
 [[RuiSeabra]]: Do not remove one of the accelerators, having two vectors is useful for many applications.
 [[daveb]]: I've heard lots of contradictory information about this, but I'm certainly not an accelerometer expert.  My understanding is that as accelerometers detect lateral movement, but not rotation through their axis, the second accelerometer is intended to detect movement in one accelerometer when the device is rotated through the axis of the other.  However, if the devices are too close together, it's difficult to get a useful reading?  At the moment, are there freerunner applications which require two accelerometers? (does omnewrotate use both?)  My understanding from the lists is that connecting both interrupts to one accelerometer will offer more benefits than sticking with two accelerometers.
 [[daveb]]: For gta02-core, we're planning to build something that will fit inside the GTA02 case. A new Id involves lots of complexity and cost - designing the case, manufacturing molds, properly understanding the EMI properties of the new case, and designing the aerials that need to fit in it.