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On Time RTOS-32 Documentation

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RTTarget-32

RTKernel-32

RTFiles-32

RTFiles-32 Programming Manual

Introduction

The FAT File System Structure

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

Optimizing for Best Throughput

Optimizing for Best Data Security

Real-Time File I/O

Using RTFiles-32 with RTTarget-32

Win32 API Emulation with RTTarget-32

Using RTFiles-32 with RTKernel-32

Custom Disk Device Drivers

Custom Flash MTD Drivers

Porting RTFiles-32 to other Platforms

RTFiles-32 Reference Manual

RTIP-32

RTPEG-32

RTUSB-32
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Custom Flash MTD Drivers

The linear flash disk driver does not know how to actually handle flash memory. Rather, it interfaces to an MTD (Memory Technology) driver to manipulate the flash. Thus, the same flash disk driver can support many different types of flash memory through different MTDs.

MTDs have a similar structure as RTFiles-32 device drivers. They consist of structure RTF_MTD with function pointers to the driver's various entrypoints.

To implement an MTD driver structure, you must:

  • Implement the five MTD Device Driver API functions in a source file.
  • Declare a global variable of type RTF_MTD and initialize it with pointers to these functions.

Please refer to the source code of the supplied drivers for examples. File Driver\Rtf32\Mtdfile.c contains a simple MTD driver simulating flash memory in a memory mapped file under Windows. The complete reference of the MTD device driver API is included in the RTFiles-32 Reference Manual.

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