Differences

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--- en-us_commands:reference:filo [2026/09/07 23:35] – 바깥 편집 127.0.0.1
+++ en-us_commands:reference:filo [2026/09/14 20:30] (current) – external edit 127.0.0.1
@@ Line 14: / Line 14: @@
 ===== Example =====
+Send ''a'' in Serial Monitor to store the next number, ''p'' to retrieve the most recently stored number, or ''c'' to clear the buffer. Send one character at a time to observe the behavior.
 <code cpp>
-uint16_t fifoValue = 0;
+uint16_t nextNumber = 0;
-uint16_t filoValue = 0;
+uint16_t lastNumber = 0;
-uint16_t sequence = 0;
 void setup() {
@@ Line 25: / Line 26: @@
 void loop() {
-  const bool store = Iup(0, IdigitalRead(0, 5));  // Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state. / Return true only at the instant the input changes from OFF to ON.
+  if (!Serial.available()) return;
-  const bool release = Iup(1, IdigitalRead(1, 5));  // Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state. / Return true only at the instant the input changes from OFF to ON.
+  const char action = Serial.read();
-  const bool reset = IdigitalRead(2, 5);  // Read the input repeatedly and update only if all samples match. If HIGH and LOW are mixed, retain the previous stable state.
+  const bool store = action == 'a';
+  const bool retrieve = action == 'p';
+  const bool clearBuffer = action == 'c';
+  if (store) ++nextNumber;
-  if (store) ++sequence;
+  const bool ok = FILO(0, store, retrieve, nextNumber, lastNumber, 16, clearBuffer);  // Store a number; on a pop signal, retrieve the last stored number.
-  const bool fifoOk = FIFO(0, store, release, sequence, fifoValue, 16, reset);  // Output the first stored 16-bit data first.
+  FILO(0, false, false, nextNumber, lastNumber, 16, false);  // Return both inputs to LOW so the next character creates a new rising edge.
-  const bool filoOk = FILO(0, store, release, sequence, filoValue, 16, reset);  // Output the last stored 16-bit data first.
+  if (retrieve && ok) Serial.println(lastNumber);
-  if (release && fifoOk && filoOk) {
+  if (retrieve && !ok) Serial.println(F("Buffer empty"));
-    Serial.print(F("oldest=")); Serial.print(fifoValue);
-    Serial.print(F(", newest=")); Serial.println(filoValue);
-  }
 }
 </code>
@@ Line 42: / Line 43: @@
 ''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:fifo|FIFO() View detailed description]]
 [[:en-us_commands:builtin|← Built-in Command List]]