![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This demo shows a number of dots projected on a rotating sphere.
Diff: EaLcdBoardGPIO.cpp
- Revision:
- 0:79b286950b60
diff -r 000000000000 -r 79b286950b60 EaLcdBoardGPIO.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EaLcdBoardGPIO.cpp Fri Oct 03 13:15:25 2014 +0000 @@ -0,0 +1,96 @@ +/* + * Copyright 2013 Embedded Artists AB + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/****************************************************************************** + * Includes + *****************************************************************************/ + +#include "mbed.h" +#include "EaLcdBoardGPIO.h" + +/****************************************************************************** + * Defines and typedefs + *****************************************************************************/ + + +EaLcdBoardGPIO::EaLcdBoardGPIO(PinName sda, PinName scl) + : EaLcdBoard(sda, scl), /*pinWP(P4_15),*/ pin3v3(P2_0), pin5v(P2_21), pinDE(P2_11), pinContrast(P2_1) +{ + pinContrast.period_ms(10); + setWriteProtect(true); + set3V3Signal(false); + set5VSignal(false); + setDisplayEnableSignal(false); + setBacklightContrast(0); +} + + +void EaLcdBoardGPIO::setWriteProtect(bool enable) +{ + // Not Applicable +} + +void EaLcdBoardGPIO::set3V3Signal(bool enabled) { //P2.0 L=3.3V on + if (enabled) { + pin3v3 = 0; + } else { + pin3v3 = 1; + } +} + +void EaLcdBoardGPIO::set5VSignal(bool enabled) { //P2.21 H=5V on + if (enabled) { + pin5v = 1; + } else { + pin5v = 0; + } +} + +void EaLcdBoardGPIO::setDisplayEnableSignal(bool enabled) { //P2.11 H=enabled + LPC_IOCON->P2_11 &= ~7; /* GPIO2[11] @ P2.11 */ + if (enabled) { + pinDE = 1; + } else { + pinDE = 0; + } +} + +void EaLcdBoardGPIO::setBacklightContrast(uint32_t value) { //P2.1, set to 4.30 for now +#if 0 + LPC_IOCON->P2_1 &= ~7; /* GPIO2[1] @ P2.1 */ + if (value > 50) { + pinContrast = 1; + } else { + pinContrast = 0; + } +#else + uint32_t tmp = LPC_IOCON->P2_1; + tmp &= ~7; + tmp |= 1; + LPC_IOCON->P2_1 = tmp; /* PWM2[1] @ P2.1 */ + float f = value; + pinContrast = f/100.0f; +#endif + +// if (value > 100) return; + +// pca9532_setBlink0Duty(100-value); +// pca9532_setBlink0Period(0); +// pca9532_setBlink0Leds(LCDB_CTRL_BL_C); +} + + +