Christian Lerche / Mbed 2 deprecated EA_DoorPlayer

EA BaseBoard, playing wav, PC see\'s SD-card through USB port.

Dependencies:   mbed

wavplayer.h@0:fef366d2ed20, 2011-11-22 (annotated)

Committer:
Lerche
Date:
Tue Nov 22 05:45:58 2011 +0000
Revision:
0:fef366d2ed20
Thanks to those who provided EA_WavPlayer and USB_MSC

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Lerche 0:fef366d2ed20 1 /*
Lerche 0:fef366d2ed20 2 Library wave file player by Tom Coxon
Lerche 0:fef366d2ed20 3
Lerche 0:fef366d2ed20 4 Based on WAVEplayer by Vlad Cazan/Stephan Rochon modified by Tom Coxon to:
Lerche 0:fef366d2ed20 5
Lerche 0:fef366d2ed20 6 1. Run correctly on the Embedded Artists LPCXpresso baseboard.
Lerche 0:fef366d2ed20 7 2. To play 8 bit sample size in addition to original 16 bit
Lerche 0:fef366d2ed20 8 3. To be more fault tolerant when playing wav files.
Lerche 0:fef366d2ed20 9 */
Lerche 0:fef366d2ed20 10
Lerche 0:fef366d2ed20 11 #ifndef WAVPLAYER_H
Lerche 0:fef366d2ed20 12 #define WAVPLAYER_H
Lerche 0:fef366d2ed20 13
Lerche 0:fef366d2ed20 14 #include "mbed.h"
Lerche 0:fef366d2ed20 15
Lerche 0:fef366d2ed20 16 #define SAMPLE_FREQ 40000
Lerche 0:fef366d2ed20 17 #define BUF_SIZE (SAMPLE_FREQ/10)
Lerche 0:fef366d2ed20 18 #define SLICE_BUF_SIZE 1
Lerche 0:fef366d2ed20 19
Lerche 0:fef366d2ed20 20 typedef struct uFMT_STRUCT {
Lerche 0:fef366d2ed20 21 short comp_code;
Lerche 0:fef366d2ed20 22 short num_channels;
Lerche 0:fef366d2ed20 23 unsigned sample_rate;
Lerche 0:fef366d2ed20 24 unsigned avg_Bps;
Lerche 0:fef366d2ed20 25 short block_align;
Lerche 0:fef366d2ed20 26 short sig_bps;
Lerche 0:fef366d2ed20 27 } FMT_STRUCT;
Lerche 0:fef366d2ed20 28
Lerche 0:fef366d2ed20 29 class WavPlayer {
Lerche 0:fef366d2ed20 30
Lerche 0:fef366d2ed20 31 public:
Lerche 0:fef366d2ed20 32
Lerche 0:fef366d2ed20 33 void play_wave(char *wavname);
Lerche 0:fef366d2ed20 34
Lerche 0:fef366d2ed20 35 private:
Lerche 0:fef366d2ed20 36
Lerche 0:fef366d2ed20 37 void cleanup(char *);
Lerche 0:fef366d2ed20 38 void fill_adc_buf(short *, unsigned);
Lerche 0:fef366d2ed20 39 void swapword(unsigned *);
Lerche 0:fef366d2ed20 40
Lerche 0:fef366d2ed20 41 // a FIFO for the DAC
Lerche 0:fef366d2ed20 42 short DAC_fifo[256];
Lerche 0:fef366d2ed20 43 short DAC_wptr;
Lerche 0:fef366d2ed20 44 short DAC_rptr;
Lerche 0:fef366d2ed20 45 short DAC_on;
Lerche 0:fef366d2ed20 46
Lerche 0:fef366d2ed20 47 void dac_out();
Lerche 0:fef366d2ed20 48
Lerche 0:fef366d2ed20 49 };
Lerche 0:fef366d2ed20 50
Lerche 0:fef366d2ed20 51 #endif