Difference between revisions of "IGEP0040HardwareRABugs"
From IGEP - ISEE Wiki
m (→BUG FULL_05: Optional input amplifier: gain is too low) |
m (→BUG ALL_01: Missing 1V8 26MHz Oscillator) |
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| − | === BUG ALL_01: Missing 1V8 26MHz Oscillator === | + | === BUG ALL_01: (IMPORTANT) Missing 1V8 26MHz Oscillator === |
'''INFO:''': This clock is not mounted at proto first assembly. It is necessary to enable some PLL and other PXA2128 clock subsystem. | '''INFO:''': This clock is not mounted at proto first assembly. It is necessary to enable some PLL and other PXA2128 clock subsystem. | ||
Revision as of 17:42, 6 August 2015
BUG ALL_01: (IMPORTANT) Missing 1V8 26MHz Oscillator
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
