不韋 呂 / UIT_AQM1602

I2C 接続の LCD AQM1602XA-RN-GBW 用のライブラリ． Library for LCD 1602XA-RN-GBW connected using I2C interface.

Dependents:   UIT2_MovingAv_Intr UIT2_VariableFIR UIT2_VowelSynthesizer UIT2_ALE_LeakyLMS ... more

AQM1602.cpp@1:18cd1c4212c3, 2015-06-09 (annotated)

Committer:
MikamiUitOpen
Date:
Tue Jun 09 09:29:34 2015 +0000
Revision:
1:18cd1c4212c3
Parent:
0:f177013dc4fc
Child:
3:414f98234c94
2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:f177013dc4fc 1 //-------------------------------------------------------
MikamiUitOpen 0:f177013dc4fc 2 // Class for LCD, AQM1602XA-RN-GBW
MikamiUitOpen 0:f177013dc4fc 3 //
MikamiUitOpen 1:18cd1c4212c3 4 // 2014/06/09, Copyright (c) 2015 MIKAMI, Naoki
MikamiUitOpen 0:f177013dc4fc 5 //-------------------------------------------------------
MikamiUitOpen 0:f177013dc4fc 6
MikamiUitOpen 0:f177013dc4fc 7 #include "AQM1602.hpp"
MikamiUitOpen 0:f177013dc4fc 8
MikamiUitOpen 0:f177013dc4fc 9 namespace Mikami
MikamiUitOpen 0:f177013dc4fc 10 {
MikamiUitOpen 0:f177013dc4fc 11 // Constructor
MikamiUitOpen 0:f177013dc4fc 12 Aqm1602::Aqm1602(PinName sda, PinName scl, uint32_t clock,
MikamiUitOpen 0:f177013dc4fc 13 bool cursor, bool blink)
MikamiUitOpen 0:f177013dc4fc 14 : i2c_(sda, scl)
MikamiUitOpen 0:f177013dc4fc 15 {
MikamiUitOpen 0:f177013dc4fc 16 if (clock != 100000) i2c_.frequency(clock);
MikamiUitOpen 0:f177013dc4fc 17
MikamiUitOpen 0:f177013dc4fc 18 wait_ms(40);
MikamiUitOpen 0:f177013dc4fc 19 WriteCmd(0x39); // To extended command
MikamiUitOpen 0:f177013dc4fc 20 WriteCmd(0x14); // Internal OSC frequency
MikamiUitOpen 0:f177013dc4fc 21 WriteCmd(0x70 | 0x00); // Contrast set
MikamiUitOpen 0:f177013dc4fc 22 WriteCmd(0x54 | 0x02); // Power/ICON/Contrast control
MikamiUitOpen 0:f177013dc4fc 23 WriteCmd(0x6C); // Follower control
MikamiUitOpen 0:f177013dc4fc 24 wait_ms(200);
MikamiUitOpen 0:f177013dc4fc 25
MikamiUitOpen 0:f177013dc4fc 26 WriteCmd(0x38); // data length：8-bit, 2-line, 5×8 dots
MikamiUitOpen 0:f177013dc4fc 27 WriteCmd(0x0C | (cursor << 1) | blink);
MikamiUitOpen 0:f177013dc4fc 28 Clear(); // Clear display
MikamiUitOpen 0:f177013dc4fc 29 }
MikamiUitOpen 0:f177013dc4fc 30
MikamiUitOpen 0:f177013dc4fc 31 // All clear
MikamiUitOpen 0:f177013dc4fc 32 void Aqm1602::Clear()
MikamiUitOpen 0:f177013dc4fc 33 {
MikamiUitOpen 0:f177013dc4fc 34 WriteCmd(0x01);
MikamiUitOpen 0:f177013dc4fc 35 wait_ms(50);
MikamiUitOpen 0:f177013dc4fc 36 }
MikamiUitOpen 0:f177013dc4fc 37
MikamiUitOpen 0:f177013dc4fc 38 // Write string
MikamiUitOpen 0:f177013dc4fc 39 void Aqm1602::WriteString(const char str[])
MikamiUitOpen 0:f177013dc4fc 40 {
MikamiUitOpen 0:f177013dc4fc 41 for (int n=0; n<N_CHR; n++)
MikamiUitOpen 0:f177013dc4fc 42 if (str[n] == 0) break;
MikamiUitOpen 0:f177013dc4fc 43 else WriteChar(str[n]);
MikamiUitOpen 0:f177013dc4fc 44 }
MikamiUitOpen 0:f177013dc4fc 45
MikamiUitOpen 0:f177013dc4fc 46 // Write string from specified position
MikamiUitOpen 0:f177013dc4fc 47 void Aqm1602::WriteStringXY(const char str[],
MikamiUitOpen 0:f177013dc4fc 48 uint8_t x, uint8_t y)
MikamiUitOpen 0:f177013dc4fc 49 {
MikamiUitOpen 0:f177013dc4fc 50 SetXY(x, y);
MikamiUitOpen 0:f177013dc4fc 51 WriteString(str);
MikamiUitOpen 0:f177013dc4fc 52 }
MikamiUitOpen 0:f177013dc4fc 53
MikamiUitOpen 0:f177013dc4fc 54 // Clear of specified line
MikamiUitOpen 0:f177013dc4fc 55 void Aqm1602::ClearLine(uint8_t line)
MikamiUitOpen 0:f177013dc4fc 56 {
MikamiUitOpen 0:f177013dc4fc 57 SetXY(0, line);
MikamiUitOpen 0:f177013dc4fc 58 for (int n=0; n<N_CHR; n++)
MikamiUitOpen 0:f177013dc4fc 59 WriteString(" ");
MikamiUitOpen 0:f177013dc4fc 60 }
MikamiUitOpen 0:f177013dc4fc 61
MikamiUitOpen 0:f177013dc4fc 62 // Set contrast
MikamiUitOpen 0:f177013dc4fc 63 void Aqm1602::SetContrast(uint8_t c)
MikamiUitOpen 0:f177013dc4fc 64 {
MikamiUitOpen 0:f177013dc4fc 65 WriteCmd(0x39);
MikamiUitOpen 0:f177013dc4fc 66 WriteCmd(0x70 | (c & 0x0f)); // Lower 4 bits
MikamiUitOpen 0:f177013dc4fc 67 WriteCmd(0x5C | ((c >> 4) & 0x03)); // Higher 2 bits
MikamiUitOpen 0:f177013dc4fc 68 WriteCmd(0x38);
MikamiUitOpen 0:f177013dc4fc 69 }
MikamiUitOpen 0:f177013dc4fc 70
MikamiUitOpen 0:f177013dc4fc 71 //---------------------------------------------------
MikamiUitOpen 0:f177013dc4fc 72 // Following functions: private
MikamiUitOpen 0:f177013dc4fc 73
MikamiUitOpen 0:f177013dc4fc 74 // Send command and data
MikamiUitOpen 0:f177013dc4fc 75 void Aqm1602::LcdTx(uint8_t cmdData, uint8_t data)
MikamiUitOpen 0:f177013dc4fc 76 {
MikamiUitOpen 0:f177013dc4fc 77 char tx[2] = { cmdData, data };
MikamiUitOpen 0:f177013dc4fc 78 i2c_.write(LCD_ADDRESS_, tx, 2);
MikamiUitOpen 0:f177013dc4fc 79 }
MikamiUitOpen 0:f177013dc4fc 80 }
MikamiUitOpen 0:f177013dc4fc 81
MikamiUitOpen 1:18cd1c4212c3 82