#!/bin/bash function usage { echo "Usage: prepare_image image_type kernel_image rootfs_image header_size" echo "Padd root and kernel image to the correct size and append the jffs2 start marker as needed" exit 1 } function pad_file { echo "Padding $1 to size $2" dd if=$1 of=$1.paddingtempfile bs=$2 count=1 conv=sync &> /dev/null mv $1.paddingtempfile $1 } #filesize filestart padding function calc_pad { [ $((($1 + $2) & ($3 - 1))) == 0 ] && { echo $1 return 0 } echo $(((($1 + $2) | ($3 - 1)) + 1 - $2)) } function prep_squash { echo "kernel_size: $kernel_size" echo "header_size: $header_size" kernel_pad_size=$(calc_pad $kernel_size $header_size 32) kernel_end=$(($header_size + $kernel_pad_size)) pad_file $kernel_image $kernel_pad_size #4k rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 4096) pad_file $rootfs_image $rootfs_pad_size echo -ne '\xde\xad\xc0\xde' >> $rootfs_image #8k rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 8192) [ $rootfs_pad_size == rootfs_old_padsize ] || { pad_file $rootfs_image $rootfs_pad_size rootfs_old_padsize=$rootfs_pad_size echo -ne '\xde\xad\xc0\xde' >> $rootfs_image } #64k rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 65536) [ $rootfs_pad_size == rootfs_old_padsize ] || { pad_file $rootfs_image $rootfs_pad_size rootfs_old_padsize=$rootfs_pad_size echo -ne '\xde\xad\xc0\xde' >> $rootfs_image } #128k rootfs_pad_size=$(calc_pad $rootfs_size $kernel_end 131072) [ $rootfs_pad_size == rootfs_old_padsize ] || { pad_file $rootfs_image $rootfs_pad_size rootfs_old_padsize=$rootfs_pad_size echo -ne '\xde\xad\xc0\xde' >> $rootfs_image } } function prep_jffs2 { kernel_pad_size=$(calc_pad $kernel_size $header_size $1) pad_file $kernel_image $kernel_pad_size } image_type=$1 kernel_image=$2 rootfs_image=$3 header_size=$4 if [ -z "$image_type" ] || [ -z "$rootfs_image" ] || [ -z "$kernel_image" ] || [ -z "$header_size" ]; then usage fi if [ ! -e "$rootfs_image" ] || [ -z "$kernel_image" ]; then echo "input file not found" exit 1 fi kernel_size=$(stat -c "%s" "$kernel_image") rootfs_size=$(stat -c "%s" "$rootfs_image") if [ $kernel_size == 0 ] || [ $rootfs_size == 0 ]; then echo "kernel or rootfs empty" exit 1 fi case $image_type in squashfs ) prep_squash ;; jffs2-64k ) prep_jffs2 65536 ;; jffs2-128k ) prep_jffs2 131072 ;; * ) echo "Unknown image type" exit 1 ;; esac lect>
path: root/lib/lufa/Projects/TempDataLogger/Lib/RTC.h
blob: f35b8ff1ecc910f0062d9720b3a89d24f3821a67 (plain)
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/*
     Copyright (C) Dean Camera, 2017.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

#ifndef _RTC_H_
#define _RTC_H_

	/* Includes: */
		#include <avr/io.h>

		#include <LUFA/Drivers/Peripheral/TWI.h>

		#include "Config/AppConfig.h"

	/* Type Defines: */
		typedef struct
		{
			uint8_t Hour;
			uint8_t Minute;
			uint8_t Second;
			uint8_t Day;
			uint8_t Month;
			uint8_t Year;
		} TimeDate_t;

		typedef struct
		{
			union
			{
				struct
				{
					unsigned Sec            : 4;
					unsigned TenSec         : 3;
					unsigned CH             : 1;
				} Fields;

				uint8_t IntVal;
			} Byte1;

			union
			{
				struct
				{
					unsigned Min            : 4;
					unsigned TenMin         : 3;
					unsigned Reserved       : 1;
				} Fields;

				uint8_t IntVal;
			} Byte2;

			union
			{
				struct
				{
					unsigned Hour            : 4;
					unsigned TenHour         : 2;
					unsigned TwelveHourMode  : 1;
					unsigned Reserved        : 1;
				} Fields;

				uint8_t IntVal;
			} Byte3;

			union
			{
				struct
				{
					unsigned DayOfWeek       : 3;
					unsigned Reserved        : 5;
				} Fields;

				uint8_t IntVal;
			} Byte4;

			union
			{
				struct
				{
					unsigned Day             : 4;
					unsigned TenDay          : 2;
					unsigned Reserved        : 2;
				} Fields;

				uint8_t IntVal;
			} Byte5;

			union
			{
				struct
				{
					unsigned Month           : 4;
					unsigned TenMonth        : 1;
					unsigned Reserved        : 3;
				} Fields;

				uint8_t IntVal;
			} Byte6;

			union
			{
				struct
				{
					unsigned Year            : 4;
					unsigned TenYear         : 4;
				} Fields;

				uint8_t IntVal;
			} Byte7;
		} DS1307_DateTimeRegs_t;

	/* Macros: */
		/** TWI address of the DS1307 device on the bus. */
		#define DS1307_ADDRESS       0xD0

	/* Function Prototypes: */
		void RTC_Init(void);
		void RTC_Tick500ms(void);
		bool RTC_SetTimeDate(const TimeDate_t* NewTimeDate);
		bool RTC_GetTimeDate(TimeDate_t* const TimeDate);

#endif