tcDspAta

Introduction

The tcDspAta class is used for low-level reading and writing to ATA storage devices such as disk drives or CompactFlash cards. Filesystems and data cache must be provided at a higher level, although these routines may be used for simple read/write access to a device.

See also:

MityDSP::tcDspAta Class Reference

Example

This is a simple example of tcDspAta creation and usage:

 {
     const unsigned int gnCF_BASE_ADDRESS = 0xB0000500;
     const int gnCF_DEVICE = 0;
     tcDspAta *mpDiskAccess;
     char lpBuffer[1024];
     int bytes;

     // create ATA access to compact flash device
     mpDiskAccess = new tcDspAta((void *)gnCF_BASE_ADDRESS, gnCF_DEVICE);

     tcDspError::report(<strong>FILE</strong>, <strong>LINE</strong>, status,
                        "CompactFlash Disk Size is %.1f KB", 
                        mpDiskAccess->getSizeKB());

     // read 1K of data from sector 7
     bytes = mpDiskAccess->read(7, 0, (void *)lpBuffer, sizeof(lpBuffer));

     // do something application-specific
     ...

     // write 512 bytes to disk, at an offset of 2K into the disk
     bytes = mpDiskAccess->write((void *)0x800, (void *)lpBuffer, 512);

     ...
 }