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?
User | Revision | Line number | New 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 |