Overview

  • Supports
    • MMC, SDC, SDHC card formats.
      • All available card formats are supported. From 8MB up to 32GB.
    • FAT12, FAT16 and FAT32.
    • Long file names.
    • SD, miniSD, and microSD form factors.
  • Audio
    • MP3, PCM WAV, IMA ADPCM.
    • MP3 CBR or VBR decoding.
    • 32 to 320 kbps MP3 bitrates.
    • 32, 44.1, and 48 KHz MP3 sample rates.
    • 1/8” Stereo jack for headsets (16+ Ohms) or for line-in connections.
    • 87 dB S/N ratio.
  • Control Interface
    • TTL serial host connection from 2400 → 460800 bps.
    • SPI slave (TBA).
    • 7 bit with trigger interface (control up to 127 sounds).
    • 8 button/switch interface.
      • Configurable polarity, interruption and debounce modes.
  • File System Support
    • Up to 4 file handles open simultaneously for reading and/or writing.
    • Random reads/writes.
      • You can read from or write to anywhere in a file.
      • Seeking in a file allows for file pre-allocation, leading to faster write times.
    • File truncation.
    • Change file modification stamp.
    • Change file attributes.
    • Iterated file listings with wildcards.
      • You can iterate through a directory listing with wildcards.
    • Direct file copy.
      • Copy data from one file to another directly.
    • On-board Real-Time Clock (RTC).
      • Files created/modified have time stamps updated to current time.1)
    • Configuration on card.
      • Settings can be read from a configuration file on the card.2)
  • Bootloader for firmware updates.
  • Chipset available for OEM integration. TQFP or QFN controller + LQFP decoder.
  • -40°C to +85°C operating temperature range.
  • RoHS compliant.

1) Time must be set after power-up.
2) On power-up only.
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rmp3/documentation/overview.txt · Last modified: 2009/11/12 02:53 by bhagman
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