Difference between revisions of "IGEP0040HardwareRABugs"

Revision as of 17:41, 6 August 2015

INFO:: This clock is not mounted at proto first assembly. It is necessary to enable some PLL and other PXA2128 clock subsystem.

WORKAROUND: Installed a 1V8 26MHz Oscillator with 50 ppm from "XTAL affaire box"

- Mount O1, R106, C276

RESULT:

- Tested with oscilloscope VCXO_IN signal

@@ Line 1: / Line 1: @@
-=== BUG FULL_05: Optional input amplifier: gain is too low ===
+=== BUG ALL_01: Missing 1V8 26MHz Oscillator ===
-'''INFO:''': Gain from NFM2173 isn't enough for a MIC audio
+'''INFO:''': This clock is not mounted at proto first assembly. It is necessary to enable some PLL and other PXA2128 clock subsystem.
-'''WORKAROUND:''' Use PMIC MICs as a dedicated input for a JA1 connector: disable optional input amplifier, input audio switch and cirrus U81 ADC1 and ADC2:
+'''WORKAROUND:''' Installed a 1V8 26MHz Oscillator with 50 ppm from "XTAL affaire box"
-- C704, C705 not mount
+- Mount O1, R106, C276
-- R718, R716 not mount
-- R737, R738 not mount
-- R705, R708 mount
-- R870, R871, R872, C889, C890 mount
-- R800 mount
-- R802 no mount
 '''RESULT:'''
-- JA1: PMIC MIC IN
+- Tested with oscilloscope VCXO_IN signal
-- JA2-6: CIRRUS
 ----