static int lua_regsound(lua_State *L){
int argc = lua_gettop(L);
#ifndef SKIP_ERROR_HANDLING
if (argc != 2) return luaL_error(L, "wrong number of arguments");
#endif
u32 time = luaL_checkinteger(L, 1);
u32 samplerate = luaL_checkinteger(L, 2);
u32 mem_base;
if (samplerate <= 8200){
srate = MICU_SAMPLE_RATE_8180;
mem_base = 0x4000;
}else if (samplerate <= 12000){
srate = MICU_SAMPLE_RATE_10910;
mem_base = 0x6000;
}else if (samplerate <= 18000){
srate = MICU_SAMPLE_RATE_16360;
mem_base = 0x8000;
}else{
srate = MICU_SAMPLE_RATE_32730;
mem_base = 0x10000;
}
u32 micbuf_pos = 0;
u32 mem_size = mem_base * time;
micbuf = (u32*)memalign(0x1000, mem_size);
micInit((u8*)micbuf, mem_size);
micsize = micGetSampleDataSize();
bool power;
cur_offset = 0;
svcSleepThread(1000000000);
MICU_StartSampling(MICU_ENCODING_PCM16_SIGNED, srate, 0, micsize, false);
return 0;
}
int main(void)
{
/* Init microscope hardware */
micInit();
/* Create USB task */
xTaskCreate(usbTask, "USB", 256, NULL, 1, NULL);
/* Start FreeRTOS task scheduler */
vTaskStartScheduler();
/* We never reached here */
while (1);
}
/**
* \brief Initializes all the subsystems for this Droplet. This function MUST be called
* by the user before using any other functions in the API.
*/
static void initAllSystems(void){
cli();
Config32MHzClock();
calculateIdNumber();
schedulerInit(); INIT_DEBUG_PRINT("SCHEDULER INIT\r\n");
pcCommInit(); INIT_DEBUG_PRINT("PC COM INIT\r\n");
rgbLEDinit(); INIT_DEBUG_PRINT("LED INIT\r\n");
powerInit(); INIT_DEBUG_PRINT("POWER INIT\r\n");
i2cInit(); INIT_DEBUG_PRINT("I2C INIT\r\n");
enableInterrupts();
rangeAlgsInit(); INIT_DEBUG_PRINT("RANGE ALGORITHMS INIT\r\n");
rgbSensorInit(); INIT_DEBUG_PRINT("RGB SENSE INIT\r\n");
irLedInit(); INIT_DEBUG_PRINT("IR LED INIT\r\n");
irSensorInit(); INIT_DEBUG_PRINT("IR SENSE INIT\r\n");
#ifdef AUDIO_DROPLET
speakerInit(); INIT_DEBUG_PRINT("SPEAKER INIT\r\n");
micInit(); INIT_DEBUG_PRINT("MIC INIT\r\n"); //Must occur after ir_sensor_init.
#endif
motorInit(); INIT_DEBUG_PRINT("MOTOR INIT\r\n");
randomInit(); INIT_DEBUG_PRINT("RAND INIT\r\n"); //This uses adc readings for a random seed, and so requires that the adcs have been initialized.
localizationInit(); INIT_DEBUG_PRINT("LOCALIZATION INIT\r\n");
#ifdef SYNCHRONIZED
fireflySyncInit();
#endif
setAllirPowers(256);
startupLightSequence();
irCommInit(); INIT_DEBUG_PRINT("IR COM INIT\r\n");
#ifdef AUDIO_DROPLET
enableMicInterrupt();
#endif
}
