TRAXMOD
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SD Card Interface

Microchip MPLAB IDE

  • Firmware: TRAXMOD-ARM v0.6.7
  • Audio: 44.1KHz, 16 bits, Stereo
  • Processor: ARM7TDMI at 70MHz with 32KB FLASH, and 8KB RAM (LPC2103)
  • DAC: PCM1770 (48KHz/24 bits max, integrated headphone amp / volume control)
  • Storage: 2GB Dane-Elec SD Card, with FAT filesystem

The first two songs played are raw CD wave audio streams, while all the rest are 4 channel MOD files. All audio data is streamed directly off of the FAT formatted SD Card in real-time; there is no external SRAM memory used. While this does make the mixing algorithm complex, the end result will be a lower cost player that can play MOD files without any file size or sample length restrictions.


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