r5451 - trunk/gta02-core/docs/ecn
werner at docs.openmoko.org
werner at docs.openmoko.org
Sat Aug 15 12:33:57 CEST 2009
Author: werner
Date: 2009-08-15 12:33:57 +0200 (Sat, 15 Aug 2009)
New Revision: 5451
Modified:
trunk/gta02-core/docs/ecn/STATUS
trunk/gta02-core/docs/ecn/ecn0028.txt
Log:
- ECN0028: cancelled as too risky
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2009-08-15 10:16:23 UTC (rev 5450)
+++ trunk/gta02-core/docs/ecn/STATUS 2009-08-15 10:33:57 UTC (rev 5451)
@@ -27,4 +27,4 @@
0025 Done Connect CLKOUT1 to UEXTCLK (U1501)
0026 Discuss Improve bus termination at sd-card
0027 Edit Renamed some nets for clarity
-0028 Edit Remove USB "charge path" power switch U4905
+0028 Cancel Remove USB "charge path" power switch U4905
Modified: trunk/gta02-core/docs/ecn/ecn0028.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0028.txt 2009-08-15 10:16:23 UTC (rev 5450)
+++ trunk/gta02-core/docs/ecn/ecn0028.txt 2009-08-15 10:33:57 UTC (rev 5451)
@@ -1,7 +1,7 @@
Remove USB "charge path" power switch U4905
-We can just disable USB host power at the PMU, so U4905 has no real
+We could just disable USB host power at the PMU, so U4905 has no real
purpose. Note that an overvoltage-limiting component should be used in
the future, as explained in ECN0014.
@@ -19,5 +19,7 @@
- when switching to USB host mode, make sure the PMU MBC is in USB
suspend mode (MBCC7.usbdevstat = 3)
+Considered too risky, so let's not do this.
+
Author: Werner Almesberger <werner at openmoko.org>
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