Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This program displays a number of dots in a 3D-projected wave.
AR1021I2C.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 AR1021I2C_H 00018 #define AR1021I2C_H 00019 00020 #include "TouchPanel.h" 00021 00022 /** 00023 * Microchip Touch Screen Controller (AR1021). 00024 * 00025 * Please note that this touch panel has an on-board storage for 00026 * calibration data. Once a successful calibration has been performed 00027 * it is not needed to do additional calibrations since the stored 00028 * calibration data will be used. 00029 */ 00030 class AR1021I2C : public TouchPanel { 00031 public: 00032 00033 00034 /** 00035 * Constructor 00036 * 00037 * @param mosi I2C SDA pin 00038 * @param miso I2C SCL pin 00039 * @param siq interrupt pin 00040 */ 00041 AR1021I2C(PinName sda, PinName scl, PinName siq); 00042 00043 bool info(int* verHigh, int* verLow, int* resBits, int* type); 00044 00045 virtual bool init(uint16_t width, uint16_t height); 00046 virtual bool read(touchCoordinate_t &coord); 00047 virtual bool calibrateStart(); 00048 virtual bool getNextCalibratePoint(uint16_t* x, uint16_t* y); 00049 virtual bool waitForCalibratePoint(bool* morePoints, uint32_t timeout); 00050 00051 private: 00052 00053 00054 I2C _i2c; 00055 DigitalIn _siq; 00056 InterruptIn _siqIrq; 00057 bool _initialized; 00058 00059 00060 int32_t _x; 00061 int32_t _y; 00062 int32_t _pen; 00063 00064 uint16_t _width; 00065 uint16_t _height; 00066 uint8_t _inset; 00067 00068 int _calibPoint; 00069 00070 00071 int cmd(char cmd, char* data, int len, char* respBuf, int* respLen, bool setCsOff=true); 00072 int waitForCalibResponse(uint32_t timeout); 00073 void readTouchIrq(); 00074 }; 00075 00076 #endif 00077
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