Library to use Arduino USB host shield on mbed
ArduinoのUSB Host Shield 2.0をmbedで使えるようにしたライブラリです。
大体のコードがArduinoからそのまま移植可能です。
Arduino UNOやMega用のホストシールド以外にもミニサイズのホストシールドでも使用可能です
シールドについて
3.3VのI/O用にシールドの改造が必要になりますがネット上に記事がたくさんあるのでそちらを参考にしてください
接続例
使い方
Arduinoのコードと違うのはUSBのインスタンスの宣言部分のみです。
ピンを自分で指定できるようにしたので使いやすくなりました。
仕様
- Arduinoのmillis関数、micros関数の移植のために内部でTimerクラスを使用しています。
main.cpp
#include "mbed.h" #include <PS3BT.h> #include <usbhub.h> Serial pc(USBTX, USBRX, 115200); //Nucleo f303k8用 USB Usb(A6, A5, A4, A3, A2); // mosi, miso, sclk, ssel, intr BTD Btd(&Usb); PS3BT PS3(&Btd); int main() { bool printAngle = false; if (Usb.Init() == -1) { pc.printf("\r\nOSC did not start"); while (1); // Halt } pc.printf("\r\nPS3 USB Library Started"); while (1) { Usb.Task(); if (PS3.PS3Connected || PS3.PS3NavigationConnected) { if (PS3.getAnalogHat(LeftHatX) > 137 || PS3.getAnalogHat(LeftHatX) < 117 || PS3.getAnalogHat(LeftHatY) > 137 || PS3.getAnalogHat(LeftHatY) < 117 || PS3.getAnalogHat(RightHatX) > 137 || PS3.getAnalogHat(RightHatX) < 117 || PS3.getAnalogHat(RightHatY) > 137 || PS3.getAnalogHat(RightHatY) < 117) { pc.printf("\r\nLeftHatX: %d", PS3.getAnalogHat(LeftHatX)); pc.printf("\tLeftHatY: %d", PS3.getAnalogHat(LeftHatY)); if (PS3.PS3Connected) { // The Navigation controller only have one joystick pc.printf("\tRightHatX: %d", PS3.getAnalogHat(RightHatX)); pc.printf("\tRightHatY: %d", PS3.getAnalogHat(RightHatY)); } } // Analog button values can be read from almost all buttons if (PS3.getAnalogButton(L2) || PS3.getAnalogButton(R2)) { pc.printf("\r\nL2: %d", PS3.getAnalogButton(L2)); if (!PS3.PS3NavigationConnected) { pc.printf("\tR2: %d", PS3.getAnalogButton(R2)); } } if (PS3.getButtonClick(PS)) { PS3.disconnect(); pc.printf("\r\nPS"); } if (PS3.getButtonClick(TRIANGLE)) pc.printf("\r\nTriangle"); if (PS3.getButtonClick(CIRCLE)) pc.printf("\r\nCircle"); if (PS3.getButtonClick(CROSS)) pc.printf("\r\nCross"); if (PS3.getButtonClick(SQUARE)) pc.printf("\r\nSquare"); if (PS3.getButtonClick(UP)) { pc.printf("\r\nUp"); PS3.setLedOff(); PS3.setLedOn(CONTROLLER_LED4); } if (PS3.getButtonClick(RIGHT)) { pc.printf("\r\nRight"); PS3.setLedOff(); PS3.setLedOn(CONTROLLER_LED1); } if (PS3.getButtonClick(DOWN)) { pc.printf("\r\nDown"); PS3.setLedOff(); PS3.setLedOn(CONTROLLER_LED2); } if (PS3.getButtonClick(LEFT)) { pc.printf("\r\nLeft"); PS3.setLedOff(); PS3.setLedOn(CONTROLLER_LED3); } if (PS3.getButtonClick(L1)) pc.printf("\r\nL1"); if (PS3.getButtonClick(L3)) pc.printf("\r\nL3"); if (PS3.getButtonClick(R1)) pc.printf("\r\nR1"); if (PS3.getButtonClick(R3)) pc.printf("\r\nR3"); if (PS3.getButtonClick(SELECT)) { pc.printf("\r\nSelect - "); PS3.printStatusString(); } if (PS3.getButtonClick(START)) { pc.printf("\r\nStart"); printAngle = !printAngle; } if (printAngle) { pc.printf("\r\nPitch: %.3lf", PS3.getAngle(Pitch)); pc.printf("\tRoll: %.3lf", PS3.getAngle(Roll)); } } else { pc.printf("not connect\n"); } } }
USB_Host/max_LCD.cpp@1:da31140f2a1c, 2020-05-02 (annotated)
- Committer:
- robo_ichinoseki_a
- Date:
- Sat May 02 05:56:48 2020 +0000
- Revision:
- 1:da31140f2a1c
- Parent:
- 0:b1ce54272580
update
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
kotakku | 0:b1ce54272580 | 1 | /* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. |
kotakku | 0:b1ce54272580 | 2 | |
kotakku | 0:b1ce54272580 | 3 | This software may be distributed and modified under the terms of the GNU |
kotakku | 0:b1ce54272580 | 4 | General Public License version 2 (GPL2) as published by the Free Software |
kotakku | 0:b1ce54272580 | 5 | Foundation and appearing in the file GPL2.TXT included in the packaging of |
kotakku | 0:b1ce54272580 | 6 | this file. Please note that GPL2 Section 2[b] requires that all works based |
kotakku | 0:b1ce54272580 | 7 | on this software must also be made publicly available under the terms of |
kotakku | 0:b1ce54272580 | 8 | the GPL2 ("Copyleft"). |
kotakku | 0:b1ce54272580 | 9 | |
kotakku | 0:b1ce54272580 | 10 | Contact information |
kotakku | 0:b1ce54272580 | 11 | ------------------- |
kotakku | 0:b1ce54272580 | 12 | |
kotakku | 0:b1ce54272580 | 13 | Circuits At Home, LTD |
kotakku | 0:b1ce54272580 | 14 | Web : http://www.circuitsathome.com |
kotakku | 0:b1ce54272580 | 15 | e-mail : support@circuitsathome.com |
kotakku | 0:b1ce54272580 | 16 | */ |
kotakku | 0:b1ce54272580 | 17 | #include "max_LCD.h" |
kotakku | 0:b1ce54272580 | 18 | #include <string.h> |
kotakku | 0:b1ce54272580 | 19 | |
kotakku | 0:b1ce54272580 | 20 | // pin definition and set/clear |
kotakku | 0:b1ce54272580 | 21 | |
kotakku | 0:b1ce54272580 | 22 | #define RS 0x04 // RS pin |
kotakku | 0:b1ce54272580 | 23 | #define E 0x08 // E pin |
kotakku | 0:b1ce54272580 | 24 | |
kotakku | 0:b1ce54272580 | 25 | #define SET_RS lcdPins |= RS |
kotakku | 0:b1ce54272580 | 26 | #define CLR_RS lcdPins &= ~RS |
kotakku | 0:b1ce54272580 | 27 | #define SET_E lcdPins |= E |
kotakku | 0:b1ce54272580 | 28 | #define CLR_E lcdPins &= ~E |
kotakku | 0:b1ce54272580 | 29 | |
kotakku | 0:b1ce54272580 | 30 | #define SENDlcdPins() pUsb->gpioWr( lcdPins ) |
kotakku | 0:b1ce54272580 | 31 | |
kotakku | 0:b1ce54272580 | 32 | #define LCD_sendcmd(a) { CLR_RS; \ |
kotakku | 0:b1ce54272580 | 33 | sendbyte(a); \ |
kotakku | 0:b1ce54272580 | 34 | } |
kotakku | 0:b1ce54272580 | 35 | |
kotakku | 0:b1ce54272580 | 36 | #define LCD_sendchar(a) { SET_RS; \ |
kotakku | 0:b1ce54272580 | 37 | sendbyte(a); \ |
kotakku | 0:b1ce54272580 | 38 | } |
kotakku | 0:b1ce54272580 | 39 | |
kotakku | 0:b1ce54272580 | 40 | static uint8_t lcdPins; //copy of LCD pins |
kotakku | 0:b1ce54272580 | 41 | |
kotakku | 0:b1ce54272580 | 42 | Max_LCD::Max_LCD(USB *pusb) : pUsb(pusb) { |
kotakku | 0:b1ce54272580 | 43 | lcdPins = 0; |
kotakku | 0:b1ce54272580 | 44 | } |
kotakku | 0:b1ce54272580 | 45 | |
kotakku | 0:b1ce54272580 | 46 | void Max_LCD::init() { |
kotakku | 0:b1ce54272580 | 47 | _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS; |
kotakku | 0:b1ce54272580 | 48 | |
kotakku | 0:b1ce54272580 | 49 | // MAX3421E::gpioWr(0x55); |
kotakku | 0:b1ce54272580 | 50 | |
kotakku | 0:b1ce54272580 | 51 | begin(16, 1); |
kotakku | 0:b1ce54272580 | 52 | } |
kotakku | 0:b1ce54272580 | 53 | |
kotakku | 0:b1ce54272580 | 54 | void Max_LCD::begin(uint8_t cols __attribute__((unused)), uint8_t lines, uint8_t dotsize) { |
kotakku | 0:b1ce54272580 | 55 | if(lines > 1) { |
kotakku | 0:b1ce54272580 | 56 | _displayfunction |= LCD_2LINE; |
kotakku | 0:b1ce54272580 | 57 | } |
kotakku | 0:b1ce54272580 | 58 | _numlines = lines; |
kotakku | 0:b1ce54272580 | 59 | _currline = 0; |
kotakku | 0:b1ce54272580 | 60 | |
kotakku | 0:b1ce54272580 | 61 | // for some 1 line displays you can select a 10 pixel high font |
kotakku | 0:b1ce54272580 | 62 | if((dotsize != 0) && (lines == 1)) { |
kotakku | 0:b1ce54272580 | 63 | _displayfunction |= LCD_5x10DOTS; |
kotakku | 0:b1ce54272580 | 64 | } |
kotakku | 0:b1ce54272580 | 65 | |
kotakku | 0:b1ce54272580 | 66 | // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION! |
kotakku | 0:b1ce54272580 | 67 | // according to datasheet, we need at least 40ms after power rises above 2.7V |
kotakku | 0:b1ce54272580 | 68 | // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50 |
kotakku | 0:b1ce54272580 | 69 | delayMicroseconds(50000); |
kotakku | 0:b1ce54272580 | 70 | lcdPins = 0x30; |
kotakku | 0:b1ce54272580 | 71 | SET_E; |
kotakku | 0:b1ce54272580 | 72 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 73 | CLR_E; |
kotakku | 0:b1ce54272580 | 74 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 75 | delayMicroseconds(10000); // wait min 4.1ms |
kotakku | 0:b1ce54272580 | 76 | //second try |
kotakku | 0:b1ce54272580 | 77 | SET_E; |
kotakku | 0:b1ce54272580 | 78 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 79 | CLR_E; |
kotakku | 0:b1ce54272580 | 80 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 81 | delayMicroseconds(10000); // wait min 4.1ms |
kotakku | 0:b1ce54272580 | 82 | // third go! |
kotakku | 0:b1ce54272580 | 83 | SET_E; |
kotakku | 0:b1ce54272580 | 84 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 85 | CLR_E; |
kotakku | 0:b1ce54272580 | 86 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 87 | delayMicroseconds(10000); |
kotakku | 0:b1ce54272580 | 88 | // finally, set to 4-bit interface |
kotakku | 0:b1ce54272580 | 89 | lcdPins = 0x20; |
kotakku | 0:b1ce54272580 | 90 | //SET_RS; |
kotakku | 0:b1ce54272580 | 91 | SET_E; |
kotakku | 0:b1ce54272580 | 92 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 93 | //CLR_RS; |
kotakku | 0:b1ce54272580 | 94 | CLR_E; |
kotakku | 0:b1ce54272580 | 95 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 96 | delayMicroseconds(10000); |
kotakku | 0:b1ce54272580 | 97 | // finally, set # lines, font size, etc. |
kotakku | 0:b1ce54272580 | 98 | command(LCD_FUNCTIONSET | _displayfunction); |
kotakku | 0:b1ce54272580 | 99 | |
kotakku | 0:b1ce54272580 | 100 | // turn the display on with no cursor or blinking default |
kotakku | 0:b1ce54272580 | 101 | _displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF; |
kotakku | 0:b1ce54272580 | 102 | display(); |
kotakku | 0:b1ce54272580 | 103 | |
kotakku | 0:b1ce54272580 | 104 | // clear it off |
kotakku | 0:b1ce54272580 | 105 | clear(); |
kotakku | 0:b1ce54272580 | 106 | |
kotakku | 0:b1ce54272580 | 107 | // Initialize to default text direction (for romance languages) |
kotakku | 0:b1ce54272580 | 108 | _displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT; |
kotakku | 0:b1ce54272580 | 109 | // set the entry mode |
kotakku | 0:b1ce54272580 | 110 | command(LCD_ENTRYMODESET | _displaymode); |
kotakku | 0:b1ce54272580 | 111 | } |
kotakku | 0:b1ce54272580 | 112 | |
kotakku | 0:b1ce54272580 | 113 | /********** high level commands, for the user! */ |
kotakku | 0:b1ce54272580 | 114 | void Max_LCD::clear() { |
kotakku | 0:b1ce54272580 | 115 | command(LCD_CLEARDISPLAY); // clear display, set cursor position to zero |
kotakku | 0:b1ce54272580 | 116 | delayMicroseconds(2000); // this command takes a long time! |
kotakku | 0:b1ce54272580 | 117 | } |
kotakku | 0:b1ce54272580 | 118 | |
kotakku | 0:b1ce54272580 | 119 | void Max_LCD::home() { |
kotakku | 0:b1ce54272580 | 120 | command(LCD_RETURNHOME); // set cursor position to zero |
kotakku | 0:b1ce54272580 | 121 | delayMicroseconds(2000); // this command takes a long time! |
kotakku | 0:b1ce54272580 | 122 | } |
kotakku | 0:b1ce54272580 | 123 | |
kotakku | 0:b1ce54272580 | 124 | void Max_LCD::setCursor(uint8_t col, uint8_t row) { |
kotakku | 0:b1ce54272580 | 125 | int row_offsets[] = {0x00, 0x40, 0x14, 0x54}; |
kotakku | 0:b1ce54272580 | 126 | if(row > _numlines) { |
kotakku | 0:b1ce54272580 | 127 | row = _numlines - 1; // we count rows starting w/0 |
kotakku | 0:b1ce54272580 | 128 | } |
kotakku | 0:b1ce54272580 | 129 | |
kotakku | 0:b1ce54272580 | 130 | command(LCD_SETDDRAMADDR | (col + row_offsets[row])); |
kotakku | 0:b1ce54272580 | 131 | } |
kotakku | 0:b1ce54272580 | 132 | |
kotakku | 0:b1ce54272580 | 133 | // Turn the display on/off (quickly) |
kotakku | 0:b1ce54272580 | 134 | |
kotakku | 0:b1ce54272580 | 135 | void Max_LCD::noDisplay() { |
kotakku | 0:b1ce54272580 | 136 | _displaycontrol &= ~LCD_DISPLAYON; |
kotakku | 0:b1ce54272580 | 137 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 138 | } |
kotakku | 0:b1ce54272580 | 139 | |
kotakku | 0:b1ce54272580 | 140 | void Max_LCD::display() { |
kotakku | 0:b1ce54272580 | 141 | _displaycontrol |= LCD_DISPLAYON; |
kotakku | 0:b1ce54272580 | 142 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 143 | } |
kotakku | 0:b1ce54272580 | 144 | |
kotakku | 0:b1ce54272580 | 145 | // Turns the underline cursor on/off |
kotakku | 0:b1ce54272580 | 146 | |
kotakku | 0:b1ce54272580 | 147 | void Max_LCD::noCursor() { |
kotakku | 0:b1ce54272580 | 148 | _displaycontrol &= ~LCD_CURSORON; |
kotakku | 0:b1ce54272580 | 149 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 150 | } |
kotakku | 0:b1ce54272580 | 151 | |
kotakku | 0:b1ce54272580 | 152 | void Max_LCD::cursor() { |
kotakku | 0:b1ce54272580 | 153 | _displaycontrol |= LCD_CURSORON; |
kotakku | 0:b1ce54272580 | 154 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 155 | } |
kotakku | 0:b1ce54272580 | 156 | |
kotakku | 0:b1ce54272580 | 157 | |
kotakku | 0:b1ce54272580 | 158 | // Turn on and off the blinking cursor |
kotakku | 0:b1ce54272580 | 159 | |
kotakku | 0:b1ce54272580 | 160 | void Max_LCD::noBlink() { |
kotakku | 0:b1ce54272580 | 161 | _displaycontrol &= ~LCD_BLINKON; |
kotakku | 0:b1ce54272580 | 162 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 163 | } |
kotakku | 0:b1ce54272580 | 164 | |
kotakku | 0:b1ce54272580 | 165 | void Max_LCD::blink() { |
kotakku | 0:b1ce54272580 | 166 | _displaycontrol |= LCD_BLINKON; |
kotakku | 0:b1ce54272580 | 167 | command(LCD_DISPLAYCONTROL | _displaycontrol); |
kotakku | 0:b1ce54272580 | 168 | } |
kotakku | 0:b1ce54272580 | 169 | |
kotakku | 0:b1ce54272580 | 170 | // These commands scroll the display without changing the RAM |
kotakku | 0:b1ce54272580 | 171 | |
kotakku | 0:b1ce54272580 | 172 | void Max_LCD::scrollDisplayLeft(void) { |
kotakku | 0:b1ce54272580 | 173 | command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT); |
kotakku | 0:b1ce54272580 | 174 | } |
kotakku | 0:b1ce54272580 | 175 | |
kotakku | 0:b1ce54272580 | 176 | void Max_LCD::scrollDisplayRight(void) { |
kotakku | 0:b1ce54272580 | 177 | command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT); |
kotakku | 0:b1ce54272580 | 178 | } |
kotakku | 0:b1ce54272580 | 179 | |
kotakku | 0:b1ce54272580 | 180 | // This is for text that flows Left to Right |
kotakku | 0:b1ce54272580 | 181 | |
kotakku | 0:b1ce54272580 | 182 | void Max_LCD::leftToRight(void) { |
kotakku | 0:b1ce54272580 | 183 | _displaymode |= LCD_ENTRYLEFT; |
kotakku | 0:b1ce54272580 | 184 | command(LCD_ENTRYMODESET | _displaymode); |
kotakku | 0:b1ce54272580 | 185 | } |
kotakku | 0:b1ce54272580 | 186 | |
kotakku | 0:b1ce54272580 | 187 | // This is for text that flows Right to Left |
kotakku | 0:b1ce54272580 | 188 | |
kotakku | 0:b1ce54272580 | 189 | void Max_LCD::rightToLeft(void) { |
kotakku | 0:b1ce54272580 | 190 | _displaymode &= ~LCD_ENTRYLEFT; |
kotakku | 0:b1ce54272580 | 191 | command(LCD_ENTRYMODESET | _displaymode); |
kotakku | 0:b1ce54272580 | 192 | } |
kotakku | 0:b1ce54272580 | 193 | |
kotakku | 0:b1ce54272580 | 194 | // This will 'right justify' text from the cursor |
kotakku | 0:b1ce54272580 | 195 | |
kotakku | 0:b1ce54272580 | 196 | void Max_LCD::autoscroll(void) { |
kotakku | 0:b1ce54272580 | 197 | _displaymode |= LCD_ENTRYSHIFTINCREMENT; |
kotakku | 0:b1ce54272580 | 198 | command(LCD_ENTRYMODESET | _displaymode); |
kotakku | 0:b1ce54272580 | 199 | } |
kotakku | 0:b1ce54272580 | 200 | |
kotakku | 0:b1ce54272580 | 201 | // This will 'left justify' text from the cursor |
kotakku | 0:b1ce54272580 | 202 | |
kotakku | 0:b1ce54272580 | 203 | void Max_LCD::noAutoscroll(void) { |
kotakku | 0:b1ce54272580 | 204 | _displaymode &= ~LCD_ENTRYSHIFTINCREMENT; |
kotakku | 0:b1ce54272580 | 205 | command(LCD_ENTRYMODESET | _displaymode); |
kotakku | 0:b1ce54272580 | 206 | } |
kotakku | 0:b1ce54272580 | 207 | |
kotakku | 0:b1ce54272580 | 208 | // Allows us to fill the first 8 CGRAM locations |
kotakku | 0:b1ce54272580 | 209 | // with custom characters |
kotakku | 0:b1ce54272580 | 210 | |
kotakku | 0:b1ce54272580 | 211 | void Max_LCD::createChar(uint8_t location, uint8_t charmap[]) { |
kotakku | 0:b1ce54272580 | 212 | location &= 0x7; // we only have 8 locations 0-7 |
kotakku | 0:b1ce54272580 | 213 | command(LCD_SETCGRAMADDR | (location << 3)); |
kotakku | 0:b1ce54272580 | 214 | for(int i = 0; i < 8; i++) { |
kotakku | 0:b1ce54272580 | 215 | write(charmap[i]); |
kotakku | 0:b1ce54272580 | 216 | } |
kotakku | 0:b1ce54272580 | 217 | } |
kotakku | 0:b1ce54272580 | 218 | |
kotakku | 0:b1ce54272580 | 219 | /*********** mid level commands, for sending data/cmds */ |
kotakku | 0:b1ce54272580 | 220 | |
kotakku | 0:b1ce54272580 | 221 | inline void Max_LCD::command(uint8_t value) { |
kotakku | 0:b1ce54272580 | 222 | LCD_sendcmd(value); |
kotakku | 0:b1ce54272580 | 223 | delayMicroseconds(100); |
kotakku | 0:b1ce54272580 | 224 | } |
kotakku | 0:b1ce54272580 | 225 | |
kotakku | 0:b1ce54272580 | 226 | #if defined(ARDUINO) && ARDUINO >=100 |
kotakku | 0:b1ce54272580 | 227 | |
kotakku | 0:b1ce54272580 | 228 | inline size_t Max_LCD::write(uint8_t value) { |
kotakku | 0:b1ce54272580 | 229 | LCD_sendchar(value); |
kotakku | 0:b1ce54272580 | 230 | return 1; // Assume success |
kotakku | 0:b1ce54272580 | 231 | } |
kotakku | 0:b1ce54272580 | 232 | #else |
kotakku | 0:b1ce54272580 | 233 | |
kotakku | 0:b1ce54272580 | 234 | inline void Max_LCD::write(uint8_t value) { |
kotakku | 0:b1ce54272580 | 235 | LCD_sendchar(value); |
kotakku | 0:b1ce54272580 | 236 | } |
kotakku | 0:b1ce54272580 | 237 | #endif |
kotakku | 0:b1ce54272580 | 238 | |
kotakku | 0:b1ce54272580 | 239 | void Max_LCD::sendbyte(uint8_t val) { |
kotakku | 0:b1ce54272580 | 240 | lcdPins &= 0x0f; //prepare place for the upper nibble |
kotakku | 0:b1ce54272580 | 241 | lcdPins |= (val & 0xf0); //copy upper nibble to LCD variable |
kotakku | 0:b1ce54272580 | 242 | SET_E; //send |
kotakku | 0:b1ce54272580 | 243 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 244 | delayMicroseconds(2); |
kotakku | 0:b1ce54272580 | 245 | CLR_E; |
kotakku | 0:b1ce54272580 | 246 | delayMicroseconds(2); |
kotakku | 0:b1ce54272580 | 247 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 248 | lcdPins &= 0x0f; //prepare place for the lower nibble |
kotakku | 0:b1ce54272580 | 249 | lcdPins |= (val << 4) & 0xf0; //copy lower nibble to LCD variable |
kotakku | 0:b1ce54272580 | 250 | SET_E; //send |
kotakku | 0:b1ce54272580 | 251 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 252 | CLR_E; |
kotakku | 0:b1ce54272580 | 253 | SENDlcdPins(); |
kotakku | 0:b1ce54272580 | 254 | delayMicroseconds(100); |
kotakku | 0:b1ce54272580 | 255 | } |
kotakku | 0:b1ce54272580 | 256 |