DMX.h

00001 /*
00002  * DMX512 send/recv library
00003  * Copyright (c) 2013 Hiroshi Suga
00004  * Released under the MIT License: http://mbed.org/license/mit
00005  */
00006 
00007 /** @file
00008  * @brief DMX512 send/recv
00009  */
00010  
00011 
00012 
00013 #ifndef DMX_H
00014 #define DMX_H
00015 
00016 #include "mbed.h"
00017 #include "RawSerial.h"
00018 
00019 
00020 #define DMX_UART_DIRECT
00021 
00022 #define DMX_SIZE 512
00023 #define DMX_TIME_BREAK 100 // 100us (88us-1s)
00024 #define DMX_TIME_MAB 10 // 10us (8us-1s)
00025 #define DMX_TIME_BETWEEN 200 // 10us (0-1s)
00026 #define DMX_START_CODE 0
00027 
00028 enum DMX_MODE {
00029     DMX_MODE_BEGIN,
00030     DMX_MODE_START,
00031     DMX_MODE_BREAK,
00032     DMX_MODE_MAB,
00033     DMX_MODE_DATA,
00034     DMX_MODE_ERROR,
00035     DMX_MODE_STOP,
00036 };
00037 
00038 /** DMX512 class (sender/client)
00039  */
00040 class DMX {
00041 public:
00042     /** init DMX class
00043      * @param p_tx TX serial port (p9, p13, p28)
00044      * @param p_rx RX serial port (p10, p14, p27)
00045      */
00046     DMX (PinName p_tx, PinName p_rx); 
00047 
00048     /** Send the data
00049      * @param addr DMX data address (0-511)
00050      * @param data DMX data (0-255)
00051      */
00052     void put (int addr, int data);
00053     /** Send the data
00054      * @param buf DMX data buffer
00055      * @param addr DMX data address
00056      * @param len data length
00057      */
00058     void put (unsigned char *buf, int addr = 0, int len = DMX_SIZE);
00059 
00060     /** Send the data
00061      * @param addr DMX data address (0-511)
00062      * @return DMX data (0-255)
00063      */
00064     int get (int addr);
00065     /** Send the data
00066      * @param buf DMX data buffer
00067      * @param addr DMX data address
00068      * @param len data length
00069      */
00070     void get (unsigned char *buf, int addr = 0, int len = DMX_SIZE);
00071 
00072     /** Start DMX send operation
00073      */
00074     void start ();
00075     /** Stop DMX send operation
00076      */
00077     void stop ();
00078     /** Clear DMX data
00079      */
00080     void clear ();
00081     
00082     /** Get the receiver Mode
00083      */
00084     int get_mode_rx(){return mode_rx;}
00085 
00086     volatile int is_recived, is_sent;
00087 
00088 protected:
00089 
00090     void int_timer  ();
00091     void int_tx ();
00092     void int_rx  ();
00093 
00094 //    Serial _dmx;
00095     RawSerial _dmx;
00096     Timeout timeout01;
00097     volatile DMX_MODE mode_tx, mode_rx;
00098     volatile int addr_tx, addr_rx;
00099     unsigned char data_tx[DMX_SIZE];
00100     unsigned char data_rx[DMX_SIZE];
00101 
00102 private:
00103     
00104 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088)
00105     LPC_UART_TypeDef *_uart;
00106 #elif defined(TARGET_LPC11UXX)
00107     LPC_USART_Type *_uart;
00108 #elif defined(TARGET_LPC11XX)
00109     LPC_UART_TypeDef *_uart;
00110 #elif defined(TARGET_KL46Z)
00111 /**
00112     The UART type changes for the Freescale KL46Z
00113 */
00114     UARTLP_Type *_uart;
00115 #else
00116     #error "this CPU not supported."
00117 #endif
00118 
00119 };
00120 
00121 #endif