EaLcdBoardGPIO.h

00001 /*
00002  *  Copyright 2013 Embedded Artists AB
00003  *
00004  *  Licensed under the Apache License, Version 2.0 (the "License");
00005  *  you may not use this file except in compliance with the License.
00006  *  You may obtain a copy of the License at
00007  *
00008  *    http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  *  Unless required by applicable law or agreed to in writing, software
00011  *  distributed under the License is distributed on an "AS IS" BASIS,
00012  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *  See the License for the specific language governing permissions and
00014  *  limitations under the License.
00015  */
00016 
00017 #ifndef EALCDBOARDGPIO_H
00018 #define EALCDBOARDGPIO_H
00019 
00020 #include "EaLcdBoard.h"
00021 
00022 /** An interface to Embedded Artists LCD Boards
00023  *
00024  */
00025 class EaLcdBoardGPIO : public EaLcdBoard {
00026 public:
00027 
00028     EaLcdBoardGPIO(PinName sda, PinName scl);
00029 
00030     void setBC(uint32_t val) { setBacklightContrast(val); };
00031 
00032 protected:
00033     virtual void setWriteProtect(bool enable);
00034     virtual void set3V3Signal(bool enabled);
00035     virtual void set5VSignal(bool enabled);
00036     virtual void setDisplayEnableSignal(bool enabled);
00037     virtual void setBacklightContrast(uint32_t value);
00038 
00039 private:
00040     //DigitalOut pinWP;
00041     DigitalOut pin3v3;
00042     DigitalOut pin5v;
00043     DigitalOut pinDE;
00044     //DigitalOut pinContrast;
00045     PwmOut pinContrast;
00046 };
00047 
00048 #endif
00049 
00050