Yoshihiro TSUBOI / Mbed 2 deprecated AQM0802_test

A example code of animated logo on AQM0802A-RN-GBW, a I2C text LCD

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 0:0543430a6bd1, committed 2013-06-19

Comitter:
ytsuboi
Date:
Wed Jun 19 15:58:03 2013 +0000
Child:
1:86115f060482
Commit message:
Revision 1.0 19-June-2013; First release.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 19 15:58:03 2013 +0000
@@ -0,0 +1,208 @@
+/*
+ *  LCD module "AQM0802A-RN-GBW" sample program
+ *
+ *  AQM0802A-RN-GBW is an I2C text LCD panel (Controller: Sitronix ST7032i)
+ *  I bought this from AKIZUKI DENSHI TSUSHO CO.,LTD.
+ *  http://akizukidenshi.com/catalog/g/gP-06669/ (Online shop page (Japanese))
+ *  http://akizukidenshi.com/download/ds/sitronix/st7032.pdf (datasheet of the chip)
+ *
+ *  Original Arduino version was developed by
+ *  Copyright (c) 2013 Masahiro WAKAYAMA at SWITCH SCIENCE
+ *
+ *  Copyright (c) 2013 Yoshihiro TSUBOI
+ *
+ *  Released under the MIT License: http://mbed.org/license/mit
+ *
+ *  revision 1.0  19-June-2013   a. 1st release
+ *
+ */
+ 
+ #include "mbed.h"
+
+I2C i2c(p28, p27); // sda, scl
+const int AQCM0802_addr = 0x7C;
+
+unsigned char mode;
+unsigned char contrast = 0; // 0-63
+unsigned char contrastFlag = false;
+int CGcounter;
+int FADEcounter;
+
+void lcd_cmd(char x) {
+  char data[2];
+  data[0] = 0x00; // CO = 0,RS = 0
+  data[1] = x;
+  i2c.write(AQCM0802_addr, data, 2);
+}
+
+void lcd_contdata(char x) {
+  char data[2];
+  data[0] = 0xC0; //0b11000000 CO = 1, RS = 1
+  data[1] = x;
+  i2c.write(AQCM0802_addr, data, 2);
+}
+
+void lcd_lastdata(char x) {
+  char data[2];
+  data[0] = 0x40; //0b11000000 CO = 0, RS = 1
+  data[1] = x;
+  i2c.write(AQCM0802_addr, data, 2);
+}
+
+void lcd_printStr(const char *s) {
+  while(*s) {
+    if(*(s + 1)) {
+      lcd_contdata(*s);
+    } else {
+      lcd_lastdata(*s);
+    }
+    s++;
+  }
+}
+
+void lcd_printHex(unsigned char num) {
+  lcd_contdata(num);
+}
+
+void lcd_init() {
+  wait(0.04);
+  // LCD initialize
+  lcd_cmd(0x38); // function set
+  lcd_cmd(0x39); // function set
+  lcd_cmd(0x04); // EntryModeSet
+  lcd_cmd(0x14); // interval osc
+  lcd_cmd(0x70 | (contrast & 0xF)); // contrast Low
+  lcd_cmd(0x5C | ((contrast >> 4) & 0x3)); // contast High/icon/power
+  lcd_cmd(0x6C); // follower control
+  wait(0.2);
+  lcd_cmd(0x38); // function set
+  lcd_cmd(0x0C); // Display On
+  lcd_cmd(0x01); // Clear Display
+  wait(0.2); // need additional wait to Clear Display
+}
+
+void lcd_setCursor(unsigned char x,unsigned char y) {
+  lcd_cmd(0x80 | (y * 0x40 + x));
+}
+
+unsigned char cg[13 * 8] = {
+/*
+  0b00001111,0b00010000,0b00010000,0b00001110,0b00000001,0b00000001,0b00011110,0b00000000,
+  0b00010001,0b00010001,0b00010001,0b00010101,0b00010101,0b00010101,0b00001010,0b00000000,
+  0b00001110,0b00000100,0b00000100,0b00000100,0b00000100,0b00000100,0b00001110,0b00000000,
+  0b00011111,0b00000100,0b00000100,0b00000100,0b00000100,0b00000100,0b00000100,0b00000000,
+  0b00001110,0b00010001,0b00010000,0b00010000,0b00010000,0b00010001,0b00001110,0b00000000,
+  0b00010001,0b00010001,0b00010001,0b00011111,0b00010001,0b00010001,0b00010001,0b00000000,
+*/
+  0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E,0x00, // S
+  0x11,0x11,0x11,0x15,0x15,0x15,0x0A,0x00, // W
+  0x0E,0x40,0x40,0x40,0x40,0x40,0x0E,0x00, // I
+  0x1F,0x40,0x40,0x40,0x40,0x40,0x40,0x00, // T
+  0x0E,0x11,0x10,0x10,0x10,0x11,0x0E,0x00, // C
+  0x11,0x11,0x11,0x1F,0x11,0x11,0x11,0x00, // H
+/*
+  0b00001111,0b00010000,0b00010000,0b00001110,0b00000001,0b00000001,0b00011110,0b00000000,
+  0b00001110,0b00010001,0b00010000,0b00010000,0b00010000,0b00010001,0b00001110,0b00000000,
+  0b00001110,0b00000100,0b00000100,0b00000100,0b00000100,0b00000100,0b00001110,0b00000000,
+  0b00011111,0b00010000,0b00010000,0b00011110,0b00010000,0b00010000,0b00011111,0b00000000,
+  0b00010001,0b00010001,0b00011001,0b00010101,0b00010011,0b00010001,0b00010001,0b00000000,
+  0b00001110,0b00010001,0b00010000,0b00010000,0b00010000,0b00010001,0b00001110,0b00000000,
+  0b00011111,0b00010000,0b00010000,0b00011110,0b00010000,0b00010000,0b00011111,0b00000000,
+*/
+  0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E,0x00, // S
+  0x0E,0x11,0x10,0x10,0x10,0x11,0x0E,0x00, // C
+  0x0E,0x40,0x40,0x40,0x40,0x40,0x0E,0x00, // I
+  0x1F,0x10,0x10,0x1E,0x10,0x10,0x1F,0x00, // E
+  0x11,0x11,0x19,0x15,0x13,0x11,0x11,0x00, // N
+  0x0E,0x11,0x10,0x10,0x10,0x11,0x0E,0x00, // C
+  0x1F,0x10,0x10,0x1E,0x10,0x10,0x1F,0x00  // E
+};
+
+void setCG(int src,int dst,int len) {
+  lcd_cmd(0x38);
+  lcd_cmd(0x40 + dst);
+  if (src >= 0) {
+    for (int i = 0;i < len;i++) lcd_printHex(cg[src + i]);
+  } else {
+    for (int i = 0;i < len;i++) lcd_printHex(0);
+  }
+}
+
+void setContrast(unsigned char c) {
+  lcd_cmd(0x39);
+  lcd_cmd(0x70 | (c & 0x0f)); // contrast Low
+  lcd_cmd(0x5C | ((c >> 4) & 0x03)); // contast High/icon/power
+  lcd_cmd(0x38);
+}
+
+int main() {
+    lcd_init();
+    while(1) {
+      switch(mode) {
+        case 0:  // init
+          lcd_setCursor(0, 0);
+          for (int i = 0;i < 6;i++) lcd_printHex(i);
+          lcd_setCursor(1, 1);
+          lcd_printStr("       ");
+          setCG(-1,0,6 * 8);
+          contrast = 35;
+          setContrast(contrast);
+          CGcounter = 0;
+          mode++;
+          break;
+        case 1:  // SWITCH
+          if(CGcounter <= (6 * 8)) {
+            setCG((CGcounter / 8) * 8,((CGcounter / 8) * 8) + 7 - (CGcounter % 8),CGcounter % 8);
+            CGcounter++;
+          } else {
+            lcd_setCursor(0, 0);
+            lcd_printStr("SWITCH");
+            setCG(-1,0,3 * 8);
+            lcd_setCursor(1, 1);
+            for (int i = 0;i < 3;i++) lcd_printHex(i);
+            CGcounter = 0;
+            mode++;
+          }
+          break;
+        case 2:  // SCI
+          if(CGcounter <= (3 * 8)) {
+            setCG(((CGcounter / 8) + 6) * 8,((CGcounter / 8) * 8) + 7 - (CGcounter % 8),CGcounter % 8);
+            CGcounter++;
+          } else {
+            lcd_setCursor(1, 1);
+            lcd_printStr("SCI");
+            setCG(-1,0,4 * 8);
+            lcd_setCursor(4, 1);
+            for (int i = 0;i < 4;i++) lcd_printHex(i);
+            CGcounter = 0;
+            mode++;
+          }
+          break;
+        case 3:  // ENCE
+          if(CGcounter <= (4 * 8)) {
+            setCG(((CGcounter / 8) + 9) * 8,((CGcounter / 8) * 8) + 7 - (CGcounter % 8),CGcounter % 8);
+            CGcounter++;
+          } else {
+            lcd_setCursor(4, 1);
+            lcd_printStr("ENCE");
+            FADEcounter = 0;
+            mode++;
+          }
+          break;
+        case 4:
+          if (contrastFlag == false) {
+            if (++contrast >= 54) contrastFlag = true;
+          } else {
+            if (--contrast <= 17) {
+              contrastFlag = false;
+              if(++FADEcounter >= 2) {
+                mode = 0;
+              }
+            }
+          }
+          setContrast(contrast);
+          break;
+      }
+      wait(0.05);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jun 19 15:58:03 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/b3110cd2dd17
\ No newline at end of file