Enabled PIN_PDN as OUTPUT

The PIN_PDN was not set as output, therefore it would not transition to
LOW for 150 ns and then stay HIGH to properly enable the CODEC. The
CODEC now powers up, at least.

control_ak4558.cpp

@@ -38,11 +38,15 @@ bool AudioControlAK4558::write(unsigned int reg, unsigned int val)
 
 bool AudioControlAK4558::enable(void)
 {
+	Serial.println("Starting setup...");
+	delay(1000);
+	Serial.println("Setup start");
 	// Power Up and Reset
 	// Clock Setup (datasheet page 72)
-	digitalWrite(PIN_PDN, LOW);
+	pinMode(PIN_PDN, OUTPUT);
+	digitalWrite(0, LOW);
 	delay(1);
-	digitalWrite(PIN_PDN, HIGH);
+	digitalWrite(0, HIGH);
 	// After Power Up: PDN pin “L” → “H”
 	// “L” time of 150ns or more is needed to reset the AK4558.
 	delay(20);
@@ -61,10 +65,16 @@ bool AudioControlAK4558::enable(void)
 	
 	registers[AK4558_CTRL_1] &= ~AK4558_DIF2;
 	registers[AK4558_CTRL_1] |= AK4558_DIF1 | AK4558_DIF0;
+	Serial.print("CTRL_1 set to ");
+	Serial.println(registers[AK4558_CTRL_1], BIN);
 	// DIF2-1-0 = 011 ( 16 bit I2S compatible when BICK = 32fs)
 	registers[AK4558_CTRL_2] &= ~AK4558_MCKS1;
+	Serial.print("CTRL_2 set to ");
+	Serial.println(registers[AK4558_CTRL_2], BIN);
 	// MCKS1-0 = 00 (Master Clock Input Frequency Select, set 256fs for Normal Speed Mode -> 11.2896 MHz)
 	registers[AK4558_MODE_CTRL] &= ~AK4558_BCKO0;
+	Serial.print("MODE_CTRL set to ");
+	Serial.println(registers[AK4558_MODE_CTRL], BIN);
 	// BCKO1-0 = 00 (BICK Output Frequency at Master Mode = 32fs = 1.4112 MHz)
 	Wire.beginTransmission(AK4558_I2C_ADDR);
 	Wire.write(AK4558_CTRL_1);
@@ -83,6 +93,8 @@ bool AudioControlAK4558::enable(void)
 	registers[AK4558_PLL_CTRL] |= AK4558_PLL2;
 	registers[AK4558_PLL_CTRL] &= ~AK4558_PLL1;
 	write(AK4558_I2C_ADDR, registers[AK4558_PLL_CTRL]);
+	Serial.print("PLL_CTRL set to ");
+	Serial.println(registers[AK4558_PLL_CTRL], BIN);
 	delay(10);
 	// as per table 16, set PLL_CTRL.PLL3-2-1-0 to 0101 for MICK as PLL Reference, 11.2896 MHz
 	// also, wait 10 ms for PLL lock
@@ -90,6 +102,8 @@ bool AudioControlAK4558::enable(void)
 	// Set the DAC output to power-save mode: LOPS bit “0” → “1”
 	registers[AK4558_MODE_CTRL] |= AK4558_FS1 | AK4558_LOPS;
 	write(AK4558_I2C_ADDR, registers[AK4558_MODE_CTRL]);
+	Serial.print("MODE_CTRL set to ");
+	Serial.println(registers[AK4558_MODE_CTRL], BIN);
 	// Set up the sampling frequency (FS3-0 bits). The ADC must be powered-up in consideration of PLL
 	// lock time. (in this case (ref. table 17): Set clock to mode 5 / 44.100 KHz)
 	// Set up the audio format (Addr=03H). (in this case: TDM1-0 = 00 (Time Division Multiplexing mode OFF) by default)
@@ -99,6 +113,9 @@ bool AudioControlAK4558::enable(void)
 	// ignore this, leaving default values - Set up the digital output volume (Address = 08H, 09H).
 	
 	registers[AK4558_PWR_MNGT] |= AK4558_PMADR | AK4558_PMADL | AK4558_PMDAR | AK4558_PMDAL;
+	write(AK4558_I2C_ADDR, registers[AK4558_PWR_MNGT]);
+	Serial.print("PWR_MNGT set to ");
+	Serial.println(registers[AK4558_PWR_MNGT], BIN);
 	delay(300);
 	// Power up the ADC: PMADL = PMADR bits = “0” → “1”
 	// Initialization cycle of the ADC is 5200/fs @Normal mode. The SDTO pin outputs “L” during initialization.
@@ -107,6 +124,9 @@ bool AudioControlAK4558::enable(void)
 	
 	registers[AK4558_MODE_CTRL] &= ~AK4558_LOPS;
 	write(AK4558_I2C_ADDR, registers[AK4558_MODE_CTRL]);
+	write(AK4558_I2C_ADDR, registers[AK4558_MODE_CTRL]);
+	Serial.print("MODE_CTRL set to ");
+	Serial.println(registers[AK4558_MODE_CTRL], BIN);
 	// Release power-save mode of the DAC output: LOPS bit = “1” → “0”
 	// Set LOPS bit to “0” after the LOUT and ROUT pins output “H”. Sound data will be output from the
 	// LOUT and ROUT pins after this setting.

control_ak4558.h

@@ -25,7 +25,7 @@
 // DIF2-1-0 = 011 ( 16 bit I2S compatible when BICK = 32fs)
 
 #ifndef PIN_PDN
-#define PIN_PDN 1
+#define PIN_PDN 0
 #endif
 // Power-Down & Reset Mode Pin
 // “L”: Power-down and Reset, “H”: Normal operation

examples/HardwareTesting/AK4558/SineOutTest/SineOutTest.ino

@@ -15,16 +15,16 @@ AudioControlAK4558       ak4558;       //xy=172,178
 
 void setup() {
   // put your setup code here, to run once:
+  AudioMemory(12);
+  while (!Serial);
+  ak4558.enable();
+  AudioNoInterrupts();
   sine1.frequency(440);
   sine2.frequency(220);
   sine1.amplitude(1.0);
   sine2.amplitude(1.0);
-  delay(10000);
-  Serial.begin(9600);
-  Serial.println("test");
-  ak4558.enable();
+  AudioInterrupts();
 }
 
 void loop() {
-  delay(1);
 }