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Today's Topics:
1. r5680 - trunk/gta02-core/docs/ecn (re...@docs.openmoko.org)
2. r5681 - trunk/gta02-core (re...@docs.openmoko.org)
3. r5682 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
4. r5683 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
5. r5684 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
6. r5685 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
7. r5686 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
--- Begin Message ---
Author: rehar
Date: 2009-10-07 19:24:31 +0200 (Wed, 07 Oct 2009)
New Revision: 5680
Modified:
trunk/gta02-core/docs/ecn/ecn0010.txt
Log:
fixed ECN0010 according to Werner's comments
Modified: trunk/gta02-core/docs/ecn/ecn0010.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0010.txt 2009-10-07 08:04:38 UTC (rev
5679)
+++ trunk/gta02-core/docs/ecn/ecn0010.txt 2009-10-07 17:24:31 UTC (rev
5680)
@@ -6,9 +6,9 @@
gets heavily reconstructed.
Removing the external amplifier (U4101) as well as the amplifier specific
-components R4114, R4112, R4109, R4108, R4110, R4113, C4117, C4111, C4110, C4110
-and C4115. Also there is no need for the AMP_SHUTDOWN and HP_IN signals
anymore,
-the external speaker and headphone can be fully controlled by the corresponding
+components R4115, R4114, R4112, R4109, R4108, R4110, R4113, C4117,and C4115.
+Also there is no need for the AMP_SHUTDOWN and HP_IN signals anymore,the
+external speaker and headphone can be fully controlled by the corresponding
register settings of the codec. (see [1])
The GTA02 earpiece will be connected between OUT3 and LOUT1 of the codec, there
@@ -17,8 +17,7 @@
The external speaker will be connected directly between ROUT2 and LOUT2.
Filter, capacitors, and varistors will not be changed or replaced.
-The external headphone will be connected between ROUT1 and LOUT2, the common
-mode choke B4102 will be inserted in the stereo path of the headphone.
+The external headphone will be connected between ROUT1 and LOUT1.
The common mode choke B4102 will be removed with ECN0032.
--- End Message ---
--- Begin Message ---
Author: rehar
Date: 2009-10-07 20:32:07 +0200 (Wed, 07 Oct 2009)
New Revision: 5681
Modified:
trunk/gta02-core/audio.sch
Log:
removed C4405 from the audio circuit to comply with ecn0032
Modified: trunk/gta02-core/audio.sch
===================================================================
--- trunk/gta02-core/audio.sch 2009-10-07 17:24:31 UTC (rev 5680)
+++ trunk/gta02-core/audio.sch 2009-10-07 18:32:07 UTC (rev 5681)
@@ -1,5 +1,5 @@
-EESchema Schematic File Version 2 date Sat 03 Oct 2009 12:44:37 PM CDT
-LIBS:power,device,conn,gta02-core
+EESchema Schematic File Version 2 date Wed 07 Oct 2009 13:30:01 CDT
+LIBS:power,device,conn,gta02-core,gta02-core-cache
EELAYER 24 0
EELAYER END
$Descr A3 16535 11700
@@ -559,15 +559,6 @@
Wire Wire Line
9300 4250 8850 4250
Wire Wire Line
- 8550 7450 8550 7250
-Wire Wire Line
- 8550 7250 8900 7250
-Wire Wire Line
- 8900 7250 8900 7500
-Wire Wire Line
- 8900 8150 8900 7900
-Connection ~ 8900 8150
-Wire Wire Line
12850 3450 12850 3400
Wire Wire Line
12850 3200 12850 3150
@@ -1490,25 +1481,6 @@
1 0 0 -1
$EndComp
$Comp
-L GND #PWR0214
-U 1 1 4A413C28
-P 8550 7450
-F 0 "#PWR0214" H 8550 7450 30 0001 C CNN
-F 1 "GND" H 8550 7380 30 0001 C CNN
- 1 8550 7450
- 1 0 0 -1
-$EndComp
-$Comp
-L C C4405
-U 1 1 4A413BEC
-P 8900 7700
-F 0 "C4405" H 8950 7800 50 0000 L CNN
-F 1 "22p" H 8950 7600 50 0000 L CNN
-F 2 "0402" H 9000 7850 60 0001 C CNN
- 1 8900 7700
- -1 0 0 -1
-$EndComp
-$Comp
L R_US R4404
U 1 1 4A413B2E
P 9400 7700
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2009-10-07 21:41:48 +0200 (Wed, 07 Oct 2009)
New Revision: 5682
Modified:
trunk/gta02-core/docs/ecn/ecn0038.txt
Log:
- replaced 39+18 = 47 with better approximation 56
- added spaces between numbers and units
Modified: trunk/gta02-core/docs/ecn/ecn0038.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0038.txt 2009-10-07 18:32:07 UTC (rev
5681)
+++ trunk/gta02-core/docs/ecn/ecn0038.txt 2009-10-07 19:41:48 UTC (rev
5682)
@@ -5,13 +5,13 @@
place the filter caps C4119-C4122 and C4128 on the codec side of the common
mode coke. So they act in combination with B4105 as a lowpass filter who
removes incoming RF on the audio lines. I also would combine R4119/20 and
-R4121/22 (39pF+18pF) to one 47pF capacitor (like the EMI filter in the earpiece
-path) so we can remove at least one unique component from the BOM.
+R4121/22 (39 pF+18 pF) to one 56 pF capacitor (like the EMI filter in the
+earpiece path) so we can remove at least one unique component from the BOM.
To do:
-I do not see any particular reason why C4128 is 10pF it's there since GTA01.
-This needs to be clarified because this value is rarely used (vibrator) in
GTA02
-schematics and might be worth replacing it.
+I do not see any particular reason why C4128 is 10 pF it's there since GTA01.
+This needs to be clarified because this value is rarely used (vibrator) in
+GTA02 schematics and might be worth replacing it.
Author: Rene Harder <re...@saweb.de>
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2009-10-07 21:46:37 +0200 (Wed, 07 Oct 2009)
New Revision: 5683
Modified:
trunk/gta02-core/docs/ecn/STATUS
Log:
- moved ECN0010 to "Done"
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2009-10-07 19:41:48 UTC (rev 5682)
+++ trunk/gta02-core/docs/ecn/STATUS 2009-10-07 19:46:37 UTC (rev 5683)
@@ -9,7 +9,7 @@
0007 Done Remove KEEPACT net and connect PMU.KEEPACT directly to IO_3V3
0008 Edit Remove external GPS antenna connector and circuit (CON7602)
0009 Done Remove LED transistors (Q1501 and Q1502)
-0010 Execute Remove audio amplifier (U4101)
+0010 Done Remove audio amplifier (U4101)
0011 Discuss Reduce number of varistors on USB_VBUS (C4902, C4909)
0012 Defer Add fuse to USB_VBUS
0013 Defer Increase rated current of B4902
@@ -49,7 +49,6 @@
0001 GLAMO, CPU, LCM
0002 MEMORY, CPU
0008 GPS
-0010 AUDIO
0011 USB
0019 AUDIO
0024 GPS
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2009-10-08 01:27:42 +0200 (Thu, 08 Oct 2009)
New Revision: 5684
Modified:
trunk/gta02-core/docs/ecn/ecn0038.txt
Log:
- 2+2 = 5, err, 39+18 = 47 :-) Explained why.
Modified: trunk/gta02-core/docs/ecn/ecn0038.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0038.txt 2009-10-07 19:46:37 UTC (rev
5683)
+++ trunk/gta02-core/docs/ecn/ecn0038.txt 2009-10-07 23:27:42 UTC (rev
5684)
@@ -5,8 +5,9 @@
place the filter caps C4119-C4122 and C4128 on the codec side of the common
mode coke. So they act in combination with B4105 as a lowpass filter who
removes incoming RF on the audio lines. I also would combine R4119/20 and
-R4121/22 (39 pF+18 pF) to one 56 pF capacitor (like the EMI filter in the
+R4121/22 (39 pF+18 pF) to one 47 pF capacitor (like the EMI filter in the
earpiece path) so we can remove at least one unique component from the BOM.
+(56 pF would be closer to 39+18 pF, but 47 pF should be good enough.)
To do:
I do not see any particular reason why C4128 is 10 pF it's there since GTA01.
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2009-10-08 02:13:54 +0200 (Thu, 08 Oct 2009)
New Revision: 5685
Modified:
trunk/gta02-core/docs/ecn/STATUS
trunk/gta02-core/docs/ecn/ecn0031.txt
trunk/gta02-core/docs/ecn/ecn0033.txt
Log:
- reviewed implementation of ECN0031 and moved ECN to "Done"
- reviewed implementation of ECN0033 and moved ECN to "Done"
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2009-10-07 23:27:42 UTC (rev 5684)
+++ trunk/gta02-core/docs/ecn/STATUS 2009-10-08 00:13:54 UTC (rev 5685)
@@ -30,9 +30,9 @@
0028 Cancel Remove USB "charge path" power switch U4905
0029 Done Move 0R resistors next to PMU after caps
0030 Execute Replace Calypso with Telit GE865
-0031 Execute Use codec to detect jack insertion and HOLD button
+0031 Done Use codec to detect jack insertion and HOLD button
0032 Execute Add EMI and ESD protection to headset jack
-0033 Execute Replace coupling capacitors for input/output lines
+0033 Done Replace coupling capacitors for input/output lines
0034 Execute Route additional SPI/GPIO pins to debug connector
0035 Done Kill WLAN unused RF components
0036 Execute Removal of decoupling capacitor C3020
@@ -55,9 +55,7 @@
0026 SD-SIM
0027 General
0030 MODEM
-0031 AUDIO
0032 AUDIO
-0033 AUDIO
0034 IO
0036 AUDIO
0037 AUDIO
Modified: trunk/gta02-core/docs/ecn/ecn0031.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0031.txt 2009-10-07 23:27:42 UTC (rev
5684)
+++ trunk/gta02-core/docs/ecn/ecn0031.txt 2009-10-08 00:13:54 UTC (rev
5685)
@@ -46,4 +46,4 @@
Author: Werner Almesberger <wer...@openmoko.org>
Review: Rene Harder <re...@saweb.de>, SVN 5491
Commit: SVN 5503
-
+Review: Werner Almesberger <wer...@openmoko.org>, SVN 5684
Modified: trunk/gta02-core/docs/ecn/ecn0033.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0033.txt 2009-10-07 23:27:42 UTC (rev
5684)
+++ trunk/gta02-core/docs/ecn/ecn0033.txt 2009-10-08 00:13:54 UTC (rev
5685)
@@ -22,3 +22,4 @@
Author: Rene Harder <re...@saweb.de>
Commit: SVN 5589
+Review: Werner Almesberger <wer...@openmoko.org>, SVN 5684
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2009-10-08 02:33:34 +0200 (Thu, 08 Oct 2009)
New Revision: 5686
Modified:
trunk/gta02-core/docs/ecn/STATUS
trunk/gta02-core/docs/ecn/ecn0036.txt
trunk/gta02-core/docs/ecn/ecn0037.txt
Log:
- reviewed implementation of ECN0036 and moved ECN to "Done"
- reviewed implementation of ECN0037, corrected spelling error, added low
level voltage, and moved the ECN to "Done"
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2009-10-08 00:13:54 UTC (rev 5685)
+++ trunk/gta02-core/docs/ecn/STATUS 2009-10-08 00:33:34 UTC (rev 5686)
@@ -35,8 +35,8 @@
0033 Done Replace coupling capacitors for input/output lines
0034 Execute Route additional SPI/GPIO pins to debug connector
0035 Done Kill WLAN unused RF components
-0036 Execute Removal of decoupling capacitor C3020
-0037 Execute Route ROUT1/LOUT1 back to LINE1/LINE2 input
+0036 Done Removal of decoupling capacitor C3020
+0037 Done Route ROUT1/LOUT1 back to LINE1/LINE2 input
0038 Discuss Loudspeaker EMI filter
0039 Discuss Insert 0R resistors into SPI signals
0040 Discuss Remove backup battery (BAT1701)
@@ -57,8 +57,6 @@
0030 MODEM
0032 AUDIO
0034 IO
-0036 AUDIO
-0037 AUDIO
0038 AUDIO
0039 CPU, LCM
0040 PMU, MODEM
Modified: trunk/gta02-core/docs/ecn/ecn0036.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0036.txt 2009-10-08 00:13:54 UTC (rev
5685)
+++ trunk/gta02-core/docs/ecn/ecn0036.txt 2009-10-08 00:33:34 UTC (rev
5686)
@@ -7,4 +7,4 @@
Author: Rene Harder <re...@saweb.de>
Commit: SVN 5606
-
+Review: Werner Almesberger <wer...@openmoko.org>, SVN 5685
Modified: trunk/gta02-core/docs/ecn/ecn0037.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0037.txt 2009-10-08 00:13:54 UTC (rev
5685)
+++ trunk/gta02-core/docs/ecn/ecn0037.txt 2009-10-08 00:33:34 UTC (rev
5686)
@@ -8,7 +8,7 @@
We need to connect the codec side of the coupling capacitors C4110 and C4411
-trough a 1k series resistor (R3030/R3031) to the line input (LINE1 and LINE2)
+through a 1k series resistor (R3030/R3031) to the line input (LINE1 and LINE2)
of the codec. To be within the standard of line compatible audio inputs we need
to increase the input impedance to 10k Ohm for a low impedance input. Therefore
we have to change R4416 and R4417 to at least 10k.
@@ -20,6 +20,7 @@
resistance R4402 and the pulldown resistor R4116. If we increase R4416 to 47k
Ohm the low level voltage would be around 1.2V, the codec maximum low level is
at 0.8V so we would not be able to generate an interrupt during jack insert.
+With R4416 = 10k, the low level voltage is 0.55 V.
Comments:
To use this feature you would still need a special (probably self made) adapter
@@ -29,3 +30,4 @@
Author: Rene Harder <re...@saweb.de>
Commit: SVN 5607
+Review: Werner Almesberger <wer...@openmoko.org>, SVN 5685
--- End Message ---
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