Lib for Noritake Itron CU209SCPB VFD Module (1 Line, 20 Chars), Serial interface
Dependents: mbed_CU209SCPB_T20
More info is here.
CU209SCPB.cpp
- Committer:
- wim
- Date:
- 2017-12-10
- Revision:
- 0:93ae875cbb7a
File content as of revision 0:93ae875cbb7a:
/* mbed Library for Noritake Itron CU209SCPB-T20 VFD module * * Copyright (c) 2017, v01: WH, Initial version * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "mbed.h" #include "CU209SCPB.h" #include "CU209SCPB_UDC.inc" /** Constructor for class for driving Noritake Itron CU209SCPB VFD module * * @brief Supports 1 line of 20 chars (5x7 matrix segments). * Serial bus interface device. * @param PinName TX Serial bus pin * @param Baud baud selects baudrate (default 19200) * @param Int Parity selects paritybits (default Even) */ CU209SCPB::CU209SCPB(PinName TXD, Baud baud, SerialBase::Parity parity) : _serial(TXD,NC), _baud(baud), _parity(parity) { _init(); _column = 0; _columns = CU209SCPB_NR_COLS; } /** Init the CU209SCPB interface and the module * * @param none * @return none */ void CU209SCPB::_init(){ //init Serial _serial.baud(_baud); _serial.format(8, _parity, 1); // CU209SCPB uses 8 databits, parity, 1 stopbit //init module // _serial.putc(D_ESC); // _serial.putc(int('I')); // Reset all settings // // _serial.putc(D_DC1); // Automatic CR mode, Cursor to 0 when reaching right end (Default) // _serial.putc(D_DC2); // Overputc mode, Overputc when reaching right end, Cursor does not move // _serial.putc(D_DC3); // Scroll mode, Text shifts left when reaching right end, Cursor does not move // // _serial.putc(D_CT0); // International Character Font (Default) // _serial.putc(D_CT1); // Katakana Character Font // // _serial.putc(D_ESC); // _serial.putc(int('T')); // _serial.putc(20); // Cursor Blinkspeed = 20 * 14.5ms (Default) _serial.putc(80); // Cursor Blinkspeed = 80 * 14.5ms setBrightness(CU209SCPB_BRT_DEF); // Default Brightness // Clear the DCRAM (undefined at Reset) cls(); // Clear the UDC RAM (undefined at Reset) const char udc_none[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00}; for (int idx=0; idx < CU209SCPB_NR_UDC; idx++) { setUDC(idx, (char *)udc_none); } } /** Clear the screen and locate to 0 * * @param none * @return none */ void CU209SCPB::cls() { _serial.putc(D_CLR); //Clear _serial.putc(D_CR); //Cursor left _column = 0; } /** Locate cursor to a screen column * * @param column The horizontal position from the left, indexed from 0 * @return none */ void CU209SCPB::locate(int column) { //sanity check if (column < 0) {column = 0;} if (column > (_columns - 1)) {column = _columns - 1;} _serial.putc(D_ESC); _serial.putc(int('H')); _serial.putc(column); _column = column; } /** Number of screen columns * * @param none * @return columns */ int CU209SCPB::columns() { return _columns; } /** Set Brightness * * @param char brightness (valid range 0..FF) * @return none */ void CU209SCPB::setBrightness(char brightness){ //Sanity check brightness = brightness & CU209SCPB_BRT_MSK; // mask invalid bits _serial.putc(D_ESC); _serial.putc(int('L')); _serial.putc(brightness); } /** Set the Cursor mode On/off * * @param bool cursor mode * @return none */ void CU209SCPB::setCursor(bool on) { if (on) { _serial.putc(D_DC5); // Blinking Cursor } else { _serial.putc(D_DC4); // Invisible } } /** Set Font * * @param int font (valid range: 0 == International, other == Katakana) * @return none */ void CU209SCPB::setFont(int font){ if (font == 0) { _serial.putc(D_CT0); // International (Default) } else { _serial.putc(D_CT1); // Katakana } } /** Set User Defined Characters (UDC) * * @param unsigned char udc_idx The Index of the UDC (0..7) * @param UDCData_t udc_data The bitpattern for the UDC (7 bytes) * @return none */ void CU209SCPB::setUDC(unsigned char udc_idx, UDCData_t udc_data) { //Sanity check udc_idx = udc_idx & CU209SCPB_UADR_MSK; // mask invalid bits _serial.putc(D_ESC); _serial.putc(int('C')); // UDC command _serial.putc(udc_idx); _serial.putc( ((udc_data[1] & 0x07) << 5) | ((udc_data[0] & 0x1F) << 0) ); // P8 ...... P1 _serial.putc( ((udc_data[3] & 0x01) << 7) | ((udc_data[2] & 0x1F) << 2) | ((udc_data[1] & 0x18) >> 3) ); // P16 ...... P9 _serial.putc( ((udc_data[4] & 0x0F) << 4) | ((udc_data[3] & 0x1E) >> 1) ); // P24 ...... P17 _serial.putc( ((udc_data[6] & 0x03) << 6) | ((udc_data[5] & 0x1F) << 1) | ((udc_data[4] & 0x10) >> 4) ); // P32 ...... P25 _serial.putc( ((udc_data[6] & 0x1C) >> 2) ); // ... P35 P34 P33 } /** putc a single character (Stream implementation) * * @param value char to print * @return value; */ int CU209SCPB::_putc(int value) { if ((value == '\n') || (value == '\r')) { //No character to display _serial.putc(D_CR); // Cursor to 0, Text remains as is //Update Cursor _column = 0; } else if ( ((value >= 0) && (value < CU209SCPB_NR_UDC)) || ((value >= CU209SCPB_CHR_STRT) && (value < CU209SCPB_CHR_END)) ){ //UDCs or Characters to display _serial.putc(value); //Update Cursor _column++; if (_column > (CU209SCPB_NR_COLS - 1)) { _column = 0; } } return value; } /** Get a single character (Stream implementation) * * @param none * @return -1 */ int CU209SCPB::_getc() { return -1; }