F_CLOCK changed to F_USB to be more descriptive, and applicable on future architecture ports.

This commit is contained in:
Dean Camera 2011-03-21 10:20:42 +00:00
parent c7f4752d6b
commit aba7932a5c
77 changed files with 508 additions and 503 deletions

View file

@ -22,7 +22,7 @@
*
* - <b>MCU</b>, the target AVR processor
* - <b>BOARD</b>, the target board hardware
* - <b>F_CLOCK</b>, the target raw master clock frequency, before any prescaling is performed
* - <b>F_USB</b>, the target raw master clock frequency, before any prescaling is performed
* - <b>F_CPU</b>, the target AVR CPU master clock frequency, after any prescaling
* - <b>CDEFS</b>, the C preprocessor defines which configure options the source code
* - <b>LUFA_PATH</b>, the path to the LUFA library source code
@ -50,7 +50,7 @@
*
* For boards with built in hardware driver support within the LUFA library, see \ref Page_DeviceSupport.
*
* \section Sec_F_CLOCK The F_CLOCK Parameter
* \section Sec_F_USB The F_USB Parameter
* This parameter indicates the target AVR's input clock frequency, in Hz. This is the actual clock input, before any prescaling is performed. In the
* USB AVR architecture, the input clock before any prescaling is fed directly to the PLL subsystem, and thus the PLL is derived directly from the
* clock input. The PLL then feeds the USB and other sections of the AVR with the correct upscaled frequencies required for those sections to function.