Libraries and Example of mbed parallel bus using I2C port expanders
Dependencies: HDSP253X mbed PCF8574_Bus
MBED_ControlBus.h
- Committer:
- wim
- Date:
- 2011-08-31
- Revision:
- 0:2467aed99127
File content as of revision 0:2467aed99127:
/* MBED_ControlBus - Use the MBED Port pins for controlling the Bus * Copyright (c) 2011 Wim Huiskamp * * Released under the MIT License: http://mbed.org/license/mit * * version 0.2 Initial Release */ #ifndef _MBED_CONTROLBUS_H #define _MBED_CONTROLBUS_H //Enums for Control Bus #include "BusEnums.h" /** Create an MBED_ControlBus object connected to the specified Pins * * @param PinName WR the Write pin * @param PinName RD the Read pin * @param PinName DTR the databuffer Transmit/Receive direction pin * @param PinName CDBUF the databuffer enable pin * @param PinName CDINT the Keyboard interrupt pin */ class MBED_ControlBus { public: MBED_ControlBus(PinName WR, PinName RD, PinName DTR, PinName CDBUF, PinName CDINT); void WR (Bit_Level wr_level); void RD (Bit_Level rd_level); void busdir (Bus_Dir buf_dir); void busctrl (Bus_Ena buf_ena, Bus_Dir buf_dir); Bit_Level CDINT (); protected: DigitalOut _WR; // Write pin DigitalOut _RD; // Read pin DigitalOut _DTR; // Databuffer Transmit/Receive direction pin DigitalOut _CDBUF; // Databuffer enable pin //Plain digital input pin DigitalIn _CDINT; // Keyboard interrupt pin //Plain digital interrupt pin // InterruptIn _CDINT; // Keyboard interrupt pin //Debounced and Edge detected input pin (Andy Kirkmans's Lib) // PinDetect _CDINT; // Keyboard interrupt pin bool _CDINT_detected; void _init(); }; #endif