Revision 0:f86833c58a5f, committed 2020-01-28

Comitter:

piroro4560

Date:

Tue Jan 28 08:03:22 2020 +0000

Child:

1:ab257f9b56d2

Commit message:

aqm0802

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/aqm0802.cpp	Tue Jan 28 08:03:22 2020 +0000
@@ -0,0 +1,87 @@
+#include "aqm0802.h"
+
+aqm0802::aqm0802(PinName sda, PinName scl)
+    : i2c_(sda, scl)
+{
+    wait_ms(40);
+    // LCD initialize
+    cmd(0x39); // function set
+    cmd(0x14); // interval osc
+    cmd(0x70); // contrast Low
+    cmd(0x56); // contast High/icon/power
+    cmd(0x6C); // follower control
+    wait_ms(200);
+    cmd(0x38); // function set
+    cmd(0x0C); // Display On
+    cmd(0x01); // Clear Display
+    wait_ms(200);
+}
+
+void aqm0802::cmd(char x)
+{
+    char data[2];
+    data[0] = 0x00; // CO = 0,RS = 0
+    data[1] = x;
+    i2c_.write(AQCM0802_addr, data, 2);
+}
+
+void aqm0802::contdata(char x)
+{
+    char data[2];
+    data[0] = 0xC0; //0b11000000 CO = 1, RS = 1
+    data[1] = x;
+    i2c_.write(AQCM0802_addr, data, 2);
+}
+
+void aqm0802::lastdata(char x)
+{
+    char data[2];
+    data[0] = 0x40; //0b11000000 CO = 0, RS = 1
+    data[1] = x;
+    i2c_.write(AQCM0802_addr, data, 2);
+}
+
+void aqm0802::print(const char *s)
+{
+    while(*s) {
+    if (*(s + 1)) {
+        contdata(*s);
+    } else {
+        lastdata(*s);
+    }
+        s++;
+    }
+}
+
+void aqm0802::print(int num)
+{
+    char itoa[8];
+    sprintf(itoa, "%d", num);
+    print(itoa);
+}
+
+void aqm0802::setCursor(uint8_t x,uint8_t y)
+{
+    cmd(0x80 | (y*0x40 + x));
+}
+
+void aqm0802::setCG(int src,int dst,int len)
+{
+    cmd(0x38);
+    cmd(0x40 + dst);
+
+    for (int i = 0;i < len;i++) contdata(cg[src + i] * (src>=0));
+}
+
+void aqm0802::setContrast(uint8_t c)
+{
+    cmd(0x39);
+    cmd(0x70 | (c & 0x0f)); // contrast Low
+    cmd(0x5C | ((c >> 4) & 0x03)); // contast High/icon/power
+    cmd(0x38);
+}
+
+void aqm0802::clear()
+{
+    cmd(0x01);
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/aqm0802.h	Tue Jan 28 08:03:22 2020 +0000
@@ -0,0 +1,78 @@
+//-------------------------------------------------------
+//  Class for LCD, AQM0802A (Header)
+//
+//  Default pin assignments
+//      D14  SDA ---- to pin4 of LCD module
+//      D15  SCL ---- to pin3 of LCD module
+//
+//  Assignment of I2C ports
+//                SDA                SCL
+//      I2C1   PB_7 or PB_9(D14)  PB_6(D10) or PB_8(D15)
+//      I2C2   PB_3(D3)           PB_10(D6)
+//      I2C3   PB_4(D5) or PC_9   PA_8(D7)
+//
+//     01234567 x
+//    +--------+
+//   0|        |
+//   1|        |
+//   y+--------+
+//   
+//
+//-------------------------------------------------------
+
+#ifndef AQM0802_H
+#define AQM0802_H
+
+#include "mbed.h"
+
+class aqm0802 {
+public :
+    // Constructor
+    aqm0802(PinName sda, PinName scl);
+
+    // Send command
+    void cmd(char x);
+
+    // Write string
+    void print(const char *s);
+    
+    void print(int num);
+
+    // Set cursol
+    void setCursor(uint8_t x,uint8_t y);
+
+    // Set contrast
+    void setContrast(uint8_t c);
+
+    void contdata(char x);
+
+    void lastdata(char x);
+
+    void setCG(int src,int dst,int len);
+    
+    void clear();
+
+//private :
+    const int AQCM0802_addr = 0x7C;
+    
+    I2C i2c_;
+    unsigned char cg[13 * 8] = {
+
+0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E,0x00, // S
+0x11,0x11,0x11,0x15,0x15,0x15,0x0A,0x00, // W
+0x0E,0x04,0x04,0x04,0x04,0x04,0x0E,0x00, // I
+0x1F,0x04,0x04,0x04,0x04,0x04,0x04,0x00, // T
+0x0E,0x11,0x10,0x10,0x10,0x11,0x0E,0x00, // C
+0x11,0x11,0x11,0x1F,0x11,0x11,0x11,0x00, // H
+  
+0x0F,0x10,0x10,0x0E,0x01,0x01,0x1E,0x00, // S
+0x0E,0x11,0x10,0x10,0x10,0x11,0x0E,0x00, // C
+0x0E,0x04,0x04,0x04,0x04,0x04,0x0E,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
+};
+
+};
+#endif
\ No newline at end of file