Nuvoton
NuMaker audio playback
Diff: main.cpp
- Revision:
- 10:ca032f77d721
- Parent:
- 6:66ba9ac474ac
- Child:
- 12:6a21e1be7e7d
--- a/main.cpp Wed Oct 11 11:52:15 2017 +0800
+++ b/main.cpp Wed Dec 06 20:57:15 2017 +0800
@@ -1,38 +1,59 @@
#include "mbed.h"
-#include "NAU8822L.h"
-
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
#include "FATFileSystem.h"
#include "NuSDBlockDevice.h"
#include <stdio.h>
#include <errno.h>
-NAU8822L audio(PC_9, PA_15, 0x1A, PG_7, PG_8, PG_9, PI_11, PI_12); // NAU8822L object
-DigitalOut hp_enable(PH_2);
NuSDBlockDevice bd(MBED_CONF_APP_SD_DAT0, MBED_CONF_APP_SD_DAT1, MBED_CONF_APP_SD_DAT2, MBED_CONF_APP_SD_DAT3, // SD DAT0-3
MBED_CONF_APP_SD_CMD, MBED_CONF_APP_SD_CLK, MBED_CONF_APP_SD_CD); // SD CMD/CLK/CD
FATFileSystem fs("fs");
+#endif
+#if defined(TARGET_NUMAKER_PFM_NUC472)
+#include "NAU8822L.h"
+
+NAU8822L audio(MBED_CONF_APP_I2C_SDA, MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_ADDR, MBED_CONF_APP_I2S_DO,
+ MBED_CONF_APP_I2S_DI, MBED_CONF_APP_I2S_BCLK, MBED_CONF_APP_I2S_MCLK, MBED_CONF_APP_I2S_LRCK); // NAU8822L object
+DigitalOut hp_enable(PH_2);
#elif defined(TARGET_NUMAKER_PFM_M453)
-NAU8822L audio(PD_4, PD_5, 0x1A, PA_5, PA_6, PA_7, PD_0, PA_4); // NAU8822L object
+#include "NAU8822L.h"
+
+NAU8822L audio(MBED_CONF_APP_I2C_SDA, MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_ADDR, MBED_CONF_APP_I2S_DO,
+ MBED_CONF_APP_I2S_DI, MBED_CONF_APP_I2S_BCLK, MBED_CONF_APP_I2S_MCLK, MBED_CONF_APP_I2S_LRCK); // NAU8822L object
DigitalOut hp_enable(PE_1);
+#elif defined(TARGET_NUMAKER_PFM_M487)
+#include "NAU88L25.h"
+NAU88L25 audio(MBED_CONF_APP_I2C_SDA, MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_ADDR, MBED_CONF_APP_I2S_DO,
+ MBED_CONF_APP_I2S_DI, MBED_CONF_APP_I2S_BCLK, MBED_CONF_APP_I2S_MCLK, MBED_CONF_APP_I2S_LRCK); // NAU88L25 object
+DigitalOut hp_enable(LED2); //dummy function
+#elif defined(TARGET_NUMAKER_PFM_NANO130)
+#include "NAU88L25.h"
+
+NAU88L25 audio(MBED_CONF_APP_I2C_SDA, MBED_CONF_APP_I2C_SCL, MBED_CONF_APP_I2C_ADDR, MBED_CONF_APP_I2S_DO,
+ MBED_CONF_APP_I2S_DI, MBED_CONF_APP_I2S_BCLK, MBED_CONF_APP_I2S_MCLK, MBED_CONF_APP_I2S_LRCK); // NAU88L25 object
+DigitalOut hp_enable(LED2); //dummy function
#endif
InterruptIn button(SW2); // button SW2
DigitalOut led(LED1); // flashing LED1(rgbled1)
+#if defined(TARGET_NUMAKER_PFM_NANO130)
+int audioBuf[128];
+#else
int audioBuf[4096];
+#endif
int readPtr = 0;
int writePtr = 0;
int samplingRate = 8000;
-char channelCount = 1;
+char channelCount = 2;
char sampleBitLength = 16;
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
FILE *fd;
int theta = 0;
@@ -51,14 +72,14 @@
printf(" done.\r\n");
}
-#elif defined(TARGET_NUMAKER_PFM_M453)
-// 1k sine wave@sampling rate 8kHz mono 16-bit
-const char sine1k[16] = {
- 0x00, 0x00, 0x50, 0x0B, 0xFF, 0x0F, 0x50, 0x0B, 0x00, 0x00, 0xB0, 0xF4, 0x01, 0xF0, 0xB0, 0xF4
+#elif defined(TARGET_NUMAKER_PFM_M453) || defined(TARGET_NUMAKER_PFM_NANO130)
+// 1k sine wave@sampling rate 8kHz stereo 16-bit
+const char sine1k[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x50, 0x0B, 0x50, 0x0B, 0x00, 0x08, 0x00, 0x08,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x00, 0xF8, 0xB0, 0xF4, 0xB0, 0xF4, 0x00, 0xF8, 0x00, 0xF8
};
int flag = 0;
-
#endif
void flip(void) {
@@ -73,14 +94,23 @@
theta -= 4;
#elif defined(TARGET_NUMAKER_PFM_M453)
if (flag == 0) {
- audio.write((int *)sine1k, readPtr, 2);
- readPtr += 2;
- readPtr &= 0x3;
+ audio.write((int *)sine1k, readPtr, 1);
+ readPtr += 1;
+ readPtr &= 0x7; // sine1k / 4 - 1
} else {
- audio.write(audioBuf, readPtr, 2);
- readPtr += 2;
+ audio.write(audioBuf, readPtr, 1);
+ readPtr += 1;
readPtr &= 0xFFF;
}
+#elif defined(TARGET_NUMAKER_PFM_M487)
+ audio.write(audioBuf, readPtr, 4);
+ readPtr += 4;
+ readPtr &= 0xFFF;
+ theta -= 4;
+#elif defined(TARGET_NUMAKER_PFM_NANO130)
+ audio.write((int *)audioBuf, readPtr, 1);
+ readPtr += 1;
+ readPtr &= 0x7; // sine1k / 4 - 1
#endif
}
@@ -105,7 +135,30 @@
writePtr = 0;
flag = 1;
}
-#endif
+#elif defined(TARGET_NUMAKER_PFM_M487)
+ audioBuf[writePtr] = audio.rxBuffer[0];
+ //audioBuf[++writePtr] = audio.rxBuffer[1];
+ //audioBuf[++writePtr] = audio.rxBuffer[2];
+ //audioBuf[++writePtr] = audio.rxBuffer[3];
+ //audioBuf[++writePtr] = audio.rxBuffer[4];
+ //audioBuf[++writePtr] = audio.rxBuffer[5];
+ //audioBuf[++writePtr] = audio.rxBuffer[6];
+ //audioBuf[++writePtr] = audio.rxBuffer[7];
+ ++writePtr;
+ theta += 1;
+ if (writePtr > 4094) {
+ writePtr = 0;
+ }
+#elif defined(TARGET_NUMAKER_PFM_NANO130)
+ /* note
+ due to SRAM size limitation
+ just demo loopback
+ */
+#endif
+}
+
+void loopback(void) {
+ audio.readwrite();
}
void fillAudioBuf(void) {
@@ -114,9 +167,9 @@
if (theta < 4096) {
// read 2 integers
fread(&audioBuf[writePtr], 4, 2, fd);
- NVIC_DisableIRQ(I2S1_IRQn); // FIXME
+ audio.lock(); // protect shared variable
theta += 2;
- NVIC_EnableIRQ(I2S1_IRQn); // FIXME
+ audio.unlock(); // protect shared variable
writePtr += 2;
writePtr &= 0xFFF;
}
@@ -124,6 +177,24 @@
#elif defined(TARGET_NUMAKER_PFM_M453)
while (1) {
Thread::wait(500);
+ printf("fill\r\n");
+ }
+#elif defined(TARGET_NUMAKER_PFM_M487)
+ while (!feof(fd)) {
+ if (theta < 4096) {
+ // read 2 integers
+ fread(&audioBuf[writePtr], 4, 2, fd);
+ audio.lock(); // protect shared variable
+ theta += 2;
+ audio.unlock(); // protect shared variable
+ writePtr += 2;
+ writePtr &= 0xFFF;
+ }
+ }
+#elif defined(TARGET_NUMAKER_PFM_NANO130)
+ while (1) {
+ Thread::wait(500);
+ printf("fill\r\n");
}
#endif
}
@@ -134,9 +205,9 @@
while (1) {
if (theta > 512 ) {
fwrite(&audioBuf[readPtr], 4, 128, fd);
- NVIC_DisableIRQ(I2S1_IRQn); // FIXME
+ audio.lock(); // protect shared variable
theta -= 128;
- NVIC_EnableIRQ(I2S1_IRQn); // FIXME
+ audio.unlock(); // protect shared variable
readPtr += 128;
if (readPtr > 4094)
readPtr = 0;
@@ -152,15 +223,42 @@
while (flag == 0) {
Thread::wait(500);
}
+#elif defined(TARGET_NUMAKER_PFM_M487)
+ int i = 0;
+ while (1) {
+ if (theta > 512 ) {
+ fwrite(&audioBuf[readPtr], 4, 128, fd);
+ audio.lock(); // protect shared variable
+ theta -= 128;
+ audio.unlock(); // protect shared variable
+ readPtr += 128;
+ if (readPtr > 4094)
+ readPtr = 0;
+
+ i += 512;
+ }
+
+ /* record about 10 seconds PCM */
+ if (i >= samplingRate*channelCount*sampleBitLength/8*10)
+ break;
+ }
+#elif defined(TARGET_NUMAKER_PFM_NANO130)
+ while (flag == 0) {
+ Thread::wait(500);
+ }
#endif
}
void demo_record(void) {
+#if defined(TARGET_NUMAKER_PFM_NANO130)
+ for (int i = 0; i < 128; i++) {
+#else
for (int i = 0; i < 4096; i++) {
+#endif
audioBuf[i] = 0;
}
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
printf("Opening a new file test.pcm");
fd = fopen("/fs/test.pcm", "w");
errno_error(fd);
@@ -174,7 +272,7 @@
drainAudioBuf();
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
fclose(fd);
#endif
@@ -183,16 +281,22 @@
}
void demo_play(void) {
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
printf("Opening file test.pcm read-only");
fd = fopen("/fs/test.pcm", "r");
+ //fd = fopen("/fs/82.wav", "r");
errno_error(fd);
-// fseek(fd, 44, SEEK_SET);
+ //fseek(fd, 44, SEEK_SET);
for (int i = 0; i < 4096; i++) {
audioBuf[i] = 0;
}
+#else
+ for (int i = 0; i < 8; i++) {
+ audioBuf[i] = (sine1k[i * 4 + 3] << 24) | (sine1k[i * 4 + 2] << 16) | (sine1k[i * 4 + 1] << 8) | (sine1k[i * 4 + 0] << 0);
+ //printf("0x%08X\r\n", audioBuf[i]);
+ }
#endif
// disable headphone
@@ -202,14 +306,14 @@
audio.format(samplingRate, channelCount, sampleBitLength);
// enable headphone
- hp_enable = 0;
+ hp_enable = 0;
printf("Start playing...\r\n");
audio.start();
fillAudioBuf();
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
fclose(fd);
#endif
@@ -220,12 +324,37 @@
hp_enable = 1;
}
+void demo_loopback(void) {
+ // disable headphone
+ hp_enable = 1;
+
+ audio.attach(&loopback);
+ audio.format(samplingRate, channelCount, sampleBitLength);
+
+ // enable headphone
+ hp_enable = 0;
+
+ printf("Start loopback...\r\n");
+ audio.loopback();
+
+ while (1) {
+ Thread::wait(500);
+ printf("loopback\r\n");
+ }
+
+ printf("Stop loopback.\r\n");
+ audio.stop();
+
+ // disable headphone
+ hp_enable = 1;
+}
+
int main(void) {
led = 1;
button.rise(&flip);
-#if defined(TARGET_NUMAKER_PFM_NUC472)
+#if defined(TARGET_NUMAKER_PFM_NUC472) || defined(TARGET_NUMAKER_PFM_M487)
int error = 0;
printf("Mounting the filesystem on \"/fs\" ");
@@ -233,9 +362,11 @@
return_error(error);
#endif
- demo_record();
+ //demo_record();
- demo_play();
+ //demo_play();
+
+ demo_loopback();
led = 0;
}