Differences

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--- en-us_commands:reference:fifo [2026/09/07 21:52] – 만듦 - 바깥 편집 127.0.0.1
+++ en-us_commands:reference:fifo [2026/09/12 23:27] (current) – 바깥 편집 127.0.0.1
@@ Line 14: / Line 14: @@
 ===== Example =====
+Send ''i'' twice from Serial Monitor to store 10 and 20. Send ''o'' twice to read 10 and then 20. Send ''r'' to empty the buffer.
 <code cpp>
-uint16_t fifoOut;
+uint16_t nextValue = 10;
-FIFO(0, digitalRead(0), digitalRead(1), D[0], fifoOut, 10);
+uint16_t removedValue = 0;
+void setup() {
+  Serial.begin(115200);
+  Serial.println(F("i: store, o: take, r: reset"));
+}
+void loop() {
+  if (!Serial.available()) return;
+  const char key = Serial.read();
+  const bool store = key == 'i';
+  const bool take = key == 'o';
+  const bool reset = key == 'r';
+  if (!store && !take && !reset) return;
+  const bool ok = FIFO(0, store, take, nextValue, removedValue, 4, reset);  // Store or retrieve a value on the rising edge of IN or OUT.
+  FIFO(0, false, false, 0, removedValue, 4);  // Return IN and OUT to OFF so the next key creates a new rising edge.
+  if (reset) {
+    nextValue = 10;
+    Serial.println(F("buffer cleared"));
+  } else if (!ok) {
+    Serial.println(F("buffer full or empty"));
+  } else if (store) {
+    Serial.print(F("stored: "));
+    Serial.println(nextValue);
+    nextValue += 10;
+  } else {
+    Serial.print(F("taken: "));
+    Serial.println(removedValue);
+  }
+}
 </code>
+Pushing to a full buffer or popping from an empty one fails.
 ===== Precautions =====
 ''IN'', ''OUT'', ''CU'' and ''CD'' act on rising edges. Use a unique ''id'' for each counter or buffer, and keep ''size'' to the required minimum.
+===== Built-in Commands in the Same Category =====
+  * [[:en-us_commands:reference:filo|FILO() View detailed description]]
 [[:en-us_commands:builtin|← Built-in Command List]]