software: use DAC1 to generate square waves

Firmware/.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "files.associations": {
+        "type_traits": "cpp",
+        "utility": "cpp"
+    }
+}

Firmware/src/main.cpp

@@ -14,5 +14,5 @@ void setup() {
 }
 
 FASTRUN void loop() {
-  generateSine(8150);
+  generateSquareDAC1(1000000, 50);
 }

Firmware/src/square.cpp

@@ -11,8 +11,8 @@ Lower frequency waves using nanoseconds is not needed and could actually causes
 // Use FASTRUN to run code in RAM
 FASTRUN void generateSquare(float frequency, int duty){
 
-  digitalWriteFast(DAC1_SEL, HIGH);
-  digitalWriteFast(DAC0_SEL, LOW);
+    digitalWriteFast(DAC0_SEL, LOW); 
+    digitalWriteFast(DAC1_SEL, HIGH); 
 
     startGenerating();
     if(frequency < 1000){
@@ -48,6 +48,9 @@ FASTRUN void generateSquare(float frequency, int duty){
 }
 
 FASTRUN void generateSquareDAC1(float frequency, int duty){
+    
+    digitalWriteFast(DAC0_SEL, LOW); 
+    digitalWriteFast(DAC1_SEL, HIGH); 
 
     startGenerating();
     if(frequency < 1000){

Firmware/src/wave.cpp

@@ -14,10 +14,12 @@ void setupWaves(){
   //Set DACs resolution to 12 bits
   analogWriteResolution(12);
 
-  // Enable DAC0, from framework's analogWriteDAC0, place here from higher speeds
+  // Enable DAC0 and DAC1, from framework's analogWriteDAC0/DAC1, place here from higher speeds
   // Reference voltage is 1.2V
   SIM_SCGC2 |= SIM_SCGC2_DAC0;
 	DAC0_C0 = DAC_C0_DACEN | DAC_C0_DACRFS;
+	SIM_SCGC2 |= SIM_SCGC2_DAC1;
+		DAC1_C0 = DAC_C0_DACEN | DAC_C0_DACRFS;
 }
 
 // Wait time by counting clock cycles