commit 954b27343edcccbd06ca1f1323329747d7ca0c0f
Author: Mats van Reenen <mail@matsvanreenen.nl>
Date:   Tue Jan 5 13:28:13 2021 +0100

    initial commit

diff --git a/oscioscoop.ino b/oscioscoop.ino
new file mode 100644
index 0000000..09c548d
--- /dev/null
+++ b/oscioscoop.ino
@@ -0,0 +1,38 @@
+const uint8_t ADC_DATA_PIN[] = {
+  19, 18, 14, 15,
+  40, 41, 17, 16
+};
+#define ADC_CLK_PIN 27
+
+void setup() {
+  pinMode(ADC_CLK_PIN, OUTPUT);
+  for(int8_t i=7; i >= 0; i--){
+    pinMode(ADC_DATA_PIN[i], INPUT);
+  }
+  digitalWrite(ADC_CLK_PIN, LOW);
+  Serial.begin(1E6);
+}
+
+uint32_t d=50;
+uint32_t t=0;
+void loop() {
+  uint32_t T=500;
+  uint8_t value = 0;
+  
+  digitalWriteFast(ADC_CLK_PIN, LOW);
+  delayMicroseconds(1);
+  digitalWriteFast(ADC_CLK_PIN, HIGH);
+  delayMicroseconds(1);
+  
+//  for(int8_t i=7; i >= 0; i--){
+//    value |= digitalRead(ADC_DATA_PIN[i]) << i;
+//  }
+  value = (GPIO6_PSR >> 16) & 0xFF;
+
+  Serial.println(value, DEC);
+//  Serial.print('\t');
+//  T = micros();
+////  Serial.println(T - t, DEC);
+//  while(t + d > micros());
+//  t = T;
+}