Complete initial revision of the XMEGA Clock Management platform driver.

Start the USB clock source generator inside USB_ResetInterface() for XMEGA devices.
This commit is contained in:
Dean Camera 2011-07-14 11:31:12 +00:00
parent c8e5176465
commit ffa8b430c1
6 changed files with 173 additions and 92 deletions

View file

@ -86,12 +86,10 @@ F_CPU = ### INSERT PRESCALED SYSTEM CLOCK SPEED HERE, IN HZ ###
# USB controller master clock frequency.
# This will define a symbol, F_USB, in all source code files equal to the
# input clock frequency (before any prescaling is performed) in Hz. This value may
# differ from F_CPU, as the USB clock is often sourced from the same oscillator as
# the CPU clock, but run through multipliers and dividers to achieve the desired
# clock rate.
# input clock frequency of the USB controller's clock generator in Hz.
#
# For the UC3 chips, this should be equal to 48MHz or 96MHz.
# For the XMEGA chips, this should be equal to a multiple of 6MHz for Low
# Speed USB mode, or a multiple of 48MHz for Full Speed USB mode.
F_USB = ### INSERT CLOCK TO USB MODULE HERE, IN HZ ###