v20210423

2021-04-24 01:37:21 +02:00
commit c3e4447f6e
7 changed files with 431 additions and 0 deletions
@@ -0,0 +1,175 @@
+/*!
+  ER1400.cpp
+	
+	v20210423: Initial version
+*/
+
+#include "er1400.h"
+
+ER1400::ER1400(uint8_t clockPin, uint8_t c1Pin, uint8_t c2Pin, uint8_t c3Pin, uint8_t outPin, uint8_t inPin) {
+  this->clockPin = clockPin;
+  this->c1Pin = c1Pin;
+  this->c2Pin = c2Pin;
+  this->c3Pin = c3Pin;
+  this->inPin = inPin;
+  this->outPin = outPin;
+  init();
+}
+
+void ER1400::init() {
+  digitalWrite(clockPin, 0);
+  digitalWrite(c1Pin, 0);
+  digitalWrite(c2Pin, 0);
+  digitalWrite(c3Pin, 0);
+  digitalWrite(outPin, 0);
+  pinMode(clockPin, OUTPUT);
+  pinMode(c1Pin, OUTPUT);
+  pinMode(c2Pin, OUTPUT);
+  pinMode(c3Pin, OUTPUT);
+  pinMode(inPin, INPUT_PULLUP);
+  pinMode(outPin, OUTPUT);
+}
+
+//readData
+int ER1400::readData(int adr) {
+  acceptAddress (adr);
+  read();
+  return shiftDataOut();
+}
+
+//writeData
+void ER1400::writeData(int adr, int data) {
+  acceptAddress(adr);
+  erase();
+  acceptData(data);
+  write();
+}
+
+
+// STANDBY         (C1: 0, C2: 0, C3: 0)
+void ER1400::standby() {
+  digitalWrite(clockPin, 0);
+  digitalWrite(c1Pin, 0);
+  digitalWrite(c2Pin, 0);
+  digitalWrite(c3Pin, 0);
+  digitalWrite(outPin, 0);
+  delayMicroseconds(delayvalue);
+  digitalWrite(clockPin, 1);
+  delayMicroseconds(delayvalue);
+}
+
+// ACCEPT ADDRESS  (C1: 0, C2: 1, C3: 1)
+void ER1400::acceptAddress(int adr) {
+	i;
+
+  adr1 = 1 << (adr / 10);
+  adr2 = 1 << (adr % 10);
+
+  for (i = 0; i < 10; i++)  {
+    digitalWrite(clockPin, 0);
+    digitalWrite(c1Pin, 0);
+    digitalWrite(c2Pin, 1);
+    digitalWrite(c3Pin, 1);
+    digitalWrite(outPin, !!(adr1 & (1 << (9 - i))));
+    delayMicroseconds(delayvalue);
+    digitalWrite(clockPin, 1);
+    delayMicroseconds(delayvalue);
+  }
+  for (i = 0; i < 10; i++)  {
+    digitalWrite(clockPin, 0);
+    digitalWrite(c1Pin, 0);
+    digitalWrite(c2Pin, 1);
+    digitalWrite(c3Pin, 1);
+    digitalWrite(outPin, !!(adr2 & (1 << (9 - i))));
+    delayMicroseconds(delayvalue);
+    digitalWrite(clockPin, 1);
+    delayMicroseconds(delayvalue);
+  }
+	
+	standby();
+}
+
+// READ            (C1: 1, C2: 0, C3: 0)
+void ER1400::read() {
+  digitalWrite(clockPin, 0);
+  digitalWrite(c1Pin, 1);
+  digitalWrite(c2Pin, 0);
+  digitalWrite(c3Pin, 0);
+  digitalWrite(outPin, 0);
+  delayMicroseconds(delayvalue);
+  digitalWrite(clockPin, 1);
+  delayMicroseconds(delayvalue);
+	
+	standby();
+}
+
+// SHIFT DATA OUT  (C1: 1, C2: 0, C3: 1)
+int ER1400::shiftDataOut() {
+  x = 0;
+  y = 0;
+
+  for (i = 0; i < 14; i++)  {
+    digitalWrite(clockPin, 0);
+    digitalWrite(c1Pin, 1);
+    digitalWrite(c2Pin, 0);
+    digitalWrite(c3Pin, 1);
+    delayMicroseconds(delayvalue);
+    digitalWrite(clockPin, 1);
+    y = digitalRead(inPin);
+    y = y << 14;
+    x = x + y;
+    x = x >> 1;
+    delayMicroseconds(delayvalue);
+  }
+
+	standby();
+	
+	return x;
+}
+
+// ERASE           (C1: 0, C2: 1, C3: 0)
+void ER1400::erase() {
+  digitalWrite(clockPin, 0);
+  digitalWrite(c1Pin, 0);
+  digitalWrite(c2Pin, 1);
+  digitalWrite(c3Pin, 0);
+  digitalWrite(outPin, 0);
+  delayMicroseconds(delayvalue);
+  digitalWrite(clockPin, 1);
+  delayMicroseconds(delayvalue);
+	
+	standby();
+}
+
+// ACCEPT DATA     (C1: 1, C2: 1, C3: 1)
+void ER1400::acceptData(int data) {
+  x = 0;
+  y = 0;
+
+  for (i = 0; i < 14; i++)  {
+    digitalWrite(clockPin, 0);
+    digitalWrite(c1Pin, 1);
+    digitalWrite(c2Pin, 1);
+    digitalWrite(c3Pin, 1);
+    digitalWrite(outPin, map(bitRead(data, i), 0, 1, 1, 0));
+    delayMicroseconds(delayvalue);
+    digitalWrite(clockPin, 1);
+    delayMicroseconds(delayvalue);
+  }
+	
+	standby();
+}
+
+// WRITE           (C1: 1, C2: 1, C3: 0)
+void ER1400::write() {
+  digitalWrite(clockPin, 0);
+  digitalWrite(c1Pin, 1);
+  digitalWrite(c2Pin, 1);
+  digitalWrite(c3Pin, 0);
+  digitalWrite(outPin, 0);
+  delayMicroseconds(delayvalue);
+  digitalWrite(clockPin, 1);
+  delayMicroseconds(delayvalue);
+	
+	standby();
+}