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 On Time RTOS-32 Documentation
 Welcome
RTTarget-32
RTKernel-32
 RTFiles-32
RTFiles-32 Programming Manual
 Introduction
The FAT File System Structure
 Sectors, Sector Addressing, and Clusters
Logical Drives and Partition Tables
The Boot Record
The File Allocation Table and Cluster Sizes
Directories and Files
Long File Names
The ISO 9660 File System Structure
The exFAT File System Structure
RTFiles-32 in Embedded Applications
RTFiles-32 APIs
Configuring RTFiles-32
Demo Programs
Advanced Topics
RTFiles-32 Reference Manual
RTIP-32
RTPEG-32
RTUSB-32
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The Boot Record
The boot record is the first sector of a logical drive. It can (but does not have to) contain a boot loader needed to boot an operating system. The boot record always contains a structure called the BIOS Parameter Block describing some properties of the logical drive. For example, this information includes:
- size of the logical drive
- cluster size
- number and size of FATs
- size of root directory
- a disk serial number
 The FAT File System Structure
 Logical Drives and Partition Tables
 The File Allocation Table and Cluster Sizes
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