Worksheet for Calculating the Save Data File System Capacity

Calculates the amount of data that can actually be saved in save data.

Save data manages data in a fixed size of 512 bytes. On this worksheet, this fixed size is referred to as a block.
Note that this differs from the definition of a block (128 KB) that is displayed on the CTR Menu.

Input Parameters
	Type of Application	CTR card-based software (Card1) / SD application CTR card application (Card2) / SD application
	Protection Type	No automatic redundancy. (Any save data that is being written will be corrupted if the Game Card is removed. ) Automatic redundancy. (Any save data that is being written will be protected against corruption even if the Game Card is removed. )
	Recordable Media	128KB of backup memory 512 KB of backup memory 1 to 2047 MB user-specified MB
	Maximum Number of Directories (0-?)	(Total number of directories that can be created throughout the entire file system.)
	Maximum Number of Files (1-?)	(Total number of files that can be created throughout the entire file system.)
Amount of Data That Can Be Saved
	Save Data Block Size	bytes
	Number of Save Data Blocks	blocks
	Save Data Capacity	bytes = KB (= block size × number of blocks)

Calculates the data size space of the expanded save data.

Expanded save data manages data with a fixed size of 4,096 bytes. On this worksheet, this fixed size is referred to as a block.
Note that this differs from the blocks as displayed on the CTR Menu, where 1 block = 128 KB.

Calculates the number of blocks consumed in expanded save data. Depending on the SD Card format, the actual memory footprint on the SD Card may be greater than the values shown here. Note that nn::fs::ResultNotEnoughSpace may be returned even if an SD Card has as much free space as the sizes shown here.

Metadata

File

2011/10/12

Added support for Card2 save data.

2011/02/09

Added notes about the definition of "blocks."

2010/12/16

Added worksheets for expanded save data calculations.

2010/12/11

Initial version.