X-Git-Url: http://git.linex4red.de/pub/lufa.git/blobdiff_plain/eee252603be67c539f9986cde76454f756e55d95..refs/heads/ProMicro:/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.h

diff --git a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.h b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.h
index a26465401..d47a72d2b 100644
--- a/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.h
+++ b/Projects/AVRISP-MKII/Lib/ISP/ISPProtocol.h
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2012.
+     Copyright (C) Dean Camera, 2021.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2021  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -38,13 +38,30 @@
 
 	/* Includes: */
 		#include <avr/io.h>
+		#include <util/atomic.h>
 		#include <util/delay.h>
 
 		#include <LUFA/Drivers/USB/USB.h>
 
 		#include "../V2Protocol.h"
 		#include "Config/AppConfig.h"
-		
+
+	/* Macros: */
+		/** Calibration clock frequency for target OSCCAL calibration, see AVR053 application note. */
+	    #define ISPPROTOCOL_CALIB_CLOCK_HZ            32768
+
+		/** Internal timer ticks per calibration clock cycle, see AVR053 application note. */
+	    #define ISPPROTOCOL_CALIB_TICKS               ( (F_CPU + ISPPROTOCOL_CALIB_CLOCK_HZ) / (2 * ISPPROTOCOL_CALIB_CLOCK_HZ) )
+
+	    /** Per AVR053, calibration guaranteed to take 1024 cycles (2048 half-cycles) or fewer;
+	     *  add some cycles for response delay (5-10 after success) and response itself.
+		 */
+	    #define ISPPROTOCOL_CALIB_HALF_CYCLE_LIMIT    (2*1024 + 50)
+
+	    /** Per AVR053, target will toggle I/O pin 8 times to indicate a successful clock calibration.
+		 */
+	    #define ISPPROTOCOL_CALIB_SUCCESS_TOGGLE_NUM  8
+
 	/* Preprocessor Checks: */
 		#if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
 			#undef ENABLE_ISP_PROTOCOL
@@ -73,6 +90,7 @@
 		void ISPProtocol_ProgramMemory(const uint8_t V2Command);
 		void ISPProtocol_ReadMemory(const uint8_t V2Command);
 		void ISPProtocol_ChipErase(void);
+		void ISPProtocol_Calibrate(void);
 		void ISPProtocol_ReadFuseLockSigOSCCAL(const uint8_t V2Command);
 		void ISPProtocol_WriteFuseLock(const uint8_t V2Command);
 		void ISPProtocol_SPIMulti(void);