clean up osccal

1 files changed, 0 insertions, 57 deletions

diff --git a/firmware/libs-device/osccal.h b/firmware/libs-device/osccal.h
deleted file mode 100644
index af37a43..0000000
--- a/firmware/libs-device/osccal.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Name: osccal.h
- * Author: Christian Starkjohann
- * Creation Date: 2008-04-10
- * Changes 2013-11-04 cpldcpu@gmail.com
- * Tabsize: 4
- * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
- * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
- */
-
-/*
-General Description:
-This module contains a function which calibrates the AVR's internal RC
-oscillator so that the CPU runs at F_CPU (F_CPU is a macro which must be
-defined when the module is compiled, best passed in the compiler command
-line). The time reference is the USB frame clock of 1 kHz available
-immediately after a USB RESET condition. Timing is done by counting CPU
-cycles, so all interrupts must be disabled while the calibration runs. 
-The size optimized assembler implementation includes its own implementation
-of usbMeasureFrameLength. Therefore USB_CFG_HAVE_MEASURE_FRAME_LENGTH should 
-be set to 0 to avoid including unused code sections. It is recommended to call
-calibrateOscillatorASM() from the reset hook in usbconfig.h by including osccal.h:
-
-#include "osccal.h"
-
-This routine is an alternative to the continuous synchronization described
-in osctune.h.
-
-Algorithm used:  See osccalASM.x
-
-Limitations:
-This calibration algorithm may try OSCCAL values of up to 192 even if the
-optimum value is far below 192. It may therefore exceed the allowed clock
-frequency of the CPU in low voltage designs!
-Precision depends on the OSCCAL vs. frequency dependency of the oscillator.
-Typical precision for an ATMega168 (derived from the OSCCAL vs. F_RC diagram
-in the data sheet) should be in the range of 0.4%. Only the 12.8 MHz and
-16.5 MHz versions of V-USB (with built-in receiver PLL) can tolerate this
-deviation! All other frequency modules require at least 0.2% precision.
-*/
-
-#ifndef __OSCCAL_H_INCLUDED__
-#define __OSCCAL_H_INCLUDED__
-
-#ifndef __ASSEMBLER__
-	void calibrateOscillatorASM(void);
-#	define USB_RESET_HOOK(resetStarts)  if(!resetStarts){ calibrateOscillatorASM();}
-#	define USB_CFG_HAVE_MEASURE_FRAME_LENGTH   0
-#endif	
-/* This function calibrates the RC oscillator so that the CPU runs at F_CPU.
- * It MUST be called immediately after the end of a USB RESET condition!
- * Disable all interrupts during the call!
- * It is recommended that you store the resulting value in EEPROM so that a
- * good guess value is available after the next reset.
- */
-
-
-#endif /* __OSCCAL_H_INCLUDED__ */