Ultrasonic Audio File Player
Dependencies: mbed
Fork of TAU_ZOOLOG_Chirp_Generator by
Diff: main.cpp
- Revision:
- 25:060831b7aadd
- Parent:
- 23:6dbd2d20697c
- Child:
- 26:c07bf3beb241
--- a/main.cpp Wed Apr 25 08:54:23 2018 +0000 +++ b/main.cpp Sun Jul 15 09:10:00 2018 +0000 @@ -15,9 +15,9 @@ */ #include "mbed.h" #include "signal.h" -#define PULSE_RATE 2.0f // in HZ +#define PULSE_RATE 10.0f // in HZ #define FREQ_POT_EN // Potentiometer to set PULSE Rate -#define MIN_FREQ 0.1f //(HZ) +#define MIN_FREQ 0.5f //(HZ) #define SAMPLE_RATE_375_KHZ // basic sample rate is 1Mhz, this mode adds delay in between sample to meet the audio sample rate float pulseRate=PULSE_RATE; @@ -97,13 +97,13 @@ #ifdef SAMPLE_RATE_375_KHZ // generate delay - for (int jj=0; jj<69; jj++) { + for (int jj=0; jj<62; jj++) { NOP(); } // micro nops :) - NOP(); - NOP(); - NOP(); + //NOP(); + //NOP(); + //NOP(); //NOP(); //NOP(); #endif