Suga koubou / DMX

DMX512, RDM send/recv library http://mbed.org/users/okini3939/notebook/dmx512

Dependents:   dmx_test ArtNodeLED SPK-DVIMXR SPK-DMXer ... more

DMX512 send/recv library

DMX512 is protocol for lighting.

調光プロトコル DMX512 を送受信するライブラリです。

see: http://mbed.org/users/okini3939/notebook/dmx512/

LPC1114 support is thanks to Stanly Chen

DMX.cpp@5:72039cd4c874, 2013-01-04 (annotated)

Committer:
okini3939
Date:
Fri Jan 04 04:31:53 2013 +0000
Revision:
5:72039cd4c874
Parent:
4:dd0544c80096
Child:
6:9e7b4eeac6ec
support LPC11U24

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:cbff6bf41542 1 /*
okini3939 0:cbff6bf41542 2 * DMX512 send/recv library
okini3939 0:cbff6bf41542 3 * Copyright (c) 2011 Hiroshi Suga
okini3939 0:cbff6bf41542 4 * Released under the MIT License: http://mbed.org/license/mit
okini3939 0:cbff6bf41542 5 */
okini3939 0:cbff6bf41542 6
okini3939 5:72039cd4c874 7 /** @file dmx.cpp
okini3939 0:cbff6bf41542 8 * @brief DMX512 send/recv
okini3939 0:cbff6bf41542 9 */
okini3939 0:cbff6bf41542 10
okini3939 0:cbff6bf41542 11 #include "mbed.h"
okini3939 0:cbff6bf41542 12 #include "DMX.h"
okini3939 0:cbff6bf41542 13
okini3939 5:72039cd4c874 14 DMX::DMX (PinName p_tx, PinName p_rx) : _dmx(p_tx, p_rx) {
okini3939 0:cbff6bf41542 15 int i;
okini3939 0:cbff6bf41542 16
okini3939 0:cbff6bf41542 17 for (i = 0; i < DMX_SIZE; i ++) {
okini3939 0:cbff6bf41542 18 data_tx[i] = 0;
okini3939 0:cbff6bf41542 19 data_rx[i] = 0;
okini3939 0:cbff6bf41542 20 }
okini3939 4:dd0544c80096 21 // mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 22 mode_tx = DMX_MODE_STOP;
okini3939 0:cbff6bf41542 23 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 24 is_recived = 0;
okini3939 0:cbff6bf41542 25 is_sent = 0;
okini3939 0:cbff6bf41542 26
okini3939 5:72039cd4c874 27 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
okini3939 0:cbff6bf41542 28 if (p_tx == p9) {
okini3939 0:cbff6bf41542 29 uart_lcr = &LPC_UART3->LCR;
okini3939 0:cbff6bf41542 30 uart_thr = &LPC_UART3->THR;
okini3939 0:cbff6bf41542 31 } else
okini3939 0:cbff6bf41542 32 if (p_tx == p13) {
okini3939 0:cbff6bf41542 33 uart_lcr = &LPC_UART1->LCR;
okini3939 0:cbff6bf41542 34 uart_thr = &LPC_UART1->THR;
okini3939 0:cbff6bf41542 35 } else
okini3939 0:cbff6bf41542 36 if (p_tx == p28) {
okini3939 0:cbff6bf41542 37 uart_lcr = &LPC_UART2->LCR;
okini3939 0:cbff6bf41542 38 uart_thr = &LPC_UART2->THR;
okini3939 0:cbff6bf41542 39 }
okini3939 0:cbff6bf41542 40 if (p_rx == p10) {
okini3939 0:cbff6bf41542 41 uart_lsr = &LPC_UART3->LSR;
okini3939 0:cbff6bf41542 42 uart_rbr = &LPC_UART3->RBR;
okini3939 0:cbff6bf41542 43 NVIC_SetPriority(UART3_IRQn, 1);
okini3939 0:cbff6bf41542 44 } else
okini3939 0:cbff6bf41542 45 if (p_rx == p14) {
okini3939 0:cbff6bf41542 46 uart_lsr = &LPC_UART1->LSR;
okini3939 0:cbff6bf41542 47 uart_rbr = &LPC_UART1->RBR;
okini3939 0:cbff6bf41542 48 NVIC_SetPriority(UART1_IRQn, 1);
okini3939 0:cbff6bf41542 49 } else
okini3939 0:cbff6bf41542 50 if (p_rx == p27) {
okini3939 0:cbff6bf41542 51 uart_lsr = &LPC_UART2->LSR;
okini3939 0:cbff6bf41542 52 uart_rbr = &LPC_UART2->RBR;
okini3939 0:cbff6bf41542 53 NVIC_SetPriority(UART2_IRQn, 1);
okini3939 0:cbff6bf41542 54 }
okini3939 5:72039cd4c874 55 #elif defined(TARGET_LPC11U24)
okini3939 5:72039cd4c874 56 if (p_tx == p9) {
okini3939 5:72039cd4c874 57 uart_lcr = &LPC_USART->LCR;
okini3939 5:72039cd4c874 58 uart_thr = &LPC_USART->THR;
okini3939 5:72039cd4c874 59 }
okini3939 5:72039cd4c874 60 if (p_rx == p10) {
okini3939 5:72039cd4c874 61 uart_lsr = &LPC_USART->LSR;
okini3939 5:72039cd4c874 62 uart_rbr = &LPC_USART->RBR;
okini3939 5:72039cd4c874 63 NVIC_SetPriority(UART_IRQn, 1);
okini3939 5:72039cd4c874 64 }
okini3939 5:72039cd4c874 65 #endif
okini3939 0:cbff6bf41542 66
okini3939 5:72039cd4c874 67 _dmx.baud(250000);
okini3939 5:72039cd4c874 68 _dmx.format(8, Serial::None, 2);
okini3939 5:72039cd4c874 69 _dmx.attach(this, &DMX::int_rx, Serial::RxIrq);
okini3939 0:cbff6bf41542 70
okini3939 4:dd0544c80096 71 // timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 72 }
okini3939 0:cbff6bf41542 73
okini3939 0:cbff6bf41542 74 void DMX::put (int ch, int data) {
okini3939 0:cbff6bf41542 75 data_tx[ch] = data;
okini3939 0:cbff6bf41542 76 }
okini3939 0:cbff6bf41542 77
okini3939 0:cbff6bf41542 78 int DMX::get (int ch) {
okini3939 0:cbff6bf41542 79 return data_rx[ch];
okini3939 0:cbff6bf41542 80 }
okini3939 0:cbff6bf41542 81
okini3939 0:cbff6bf41542 82 void DMX::int_timer () {
okini3939 0:cbff6bf41542 83
okini3939 0:cbff6bf41542 84 switch (mode_tx) {
okini3939 0:cbff6bf41542 85 case DMX_MODE_BEGIN:
okini3939 0:cbff6bf41542 86 // Break Time
okini3939 0:cbff6bf41542 87 timeout01.detach();
okini3939 0:cbff6bf41542 88 *uart_lcr |= (1 << 6);
okini3939 0:cbff6bf41542 89 mode_tx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 90 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
okini3939 0:cbff6bf41542 91 break;
okini3939 0:cbff6bf41542 92
okini3939 0:cbff6bf41542 93 case DMX_MODE_BREAK:
okini3939 0:cbff6bf41542 94 // Mark After Break
okini3939 0:cbff6bf41542 95 timeout01.detach();
okini3939 0:cbff6bf41542 96 *uart_lcr &= ~(1 << 6);
okini3939 0:cbff6bf41542 97 mode_tx = DMX_MODE_MAB;
okini3939 0:cbff6bf41542 98 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
okini3939 0:cbff6bf41542 99 break;
okini3939 0:cbff6bf41542 100
okini3939 0:cbff6bf41542 101 case DMX_MODE_MAB:
okini3939 0:cbff6bf41542 102 // Start code
okini3939 0:cbff6bf41542 103 timeout01.detach();
okini3939 0:cbff6bf41542 104 addr_tx = 0;
okini3939 0:cbff6bf41542 105 mode_tx = DMX_MODE_DATA;
okini3939 5:72039cd4c874 106 _dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
okini3939 2:d7677060f8eb 107 #ifdef DMX_UART_DIRECT
okini3939 2:d7677060f8eb 108 *uart_thr = 0;
okini3939 2:d7677060f8eb 109 #else
okini3939 5:72039cd4c874 110 _dmx.putc(0);
okini3939 2:d7677060f8eb 111 #endif
okini3939 0:cbff6bf41542 112 break;
okini3939 0:cbff6bf41542 113 }
okini3939 0:cbff6bf41542 114 }
okini3939 0:cbff6bf41542 115
okini3939 0:cbff6bf41542 116 void DMX::int_tx () {
okini3939 0:cbff6bf41542 117 // Data
okini3939 0:cbff6bf41542 118 if (mode_tx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 119 if (addr_tx < DMX_SIZE) {
okini3939 1:f0d988e15810 120 #ifdef DMX_UART_DIRECT
okini3939 0:cbff6bf41542 121 *uart_thr = (uint8_t)data_tx[addr_tx];
okini3939 0:cbff6bf41542 122 #else
okini3939 5:72039cd4c874 123 _dmx.putc(data_tx[addr_tx]);
okini3939 0:cbff6bf41542 124 #endif
okini3939 0:cbff6bf41542 125 addr_tx ++;
okini3939 0:cbff6bf41542 126 } else {
okini3939 5:72039cd4c874 127 _dmx.attach(0, Serial::TxIrq);
okini3939 0:cbff6bf41542 128 mode_tx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 129 is_sent = 1;
okini3939 0:cbff6bf41542 130 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 131 }
okini3939 0:cbff6bf41542 132 }
okini3939 0:cbff6bf41542 133 }
okini3939 0:cbff6bf41542 134
okini3939 0:cbff6bf41542 135 void DMX::int_rx () {
okini3939 0:cbff6bf41542 136 int flg, dat;
okini3939 0:cbff6bf41542 137
okini3939 0:cbff6bf41542 138 flg = *uart_lsr;
okini3939 1:f0d988e15810 139 #ifdef DMX_UART_DIRECT
okini3939 1:f0d988e15810 140 dat = *uart_rbr;
okini3939 1:f0d988e15810 141 #else
okini3939 5:72039cd4c874 142 dat = _dmx.getc();
okini3939 1:f0d988e15810 143 #endif
okini3939 0:cbff6bf41542 144
okini3939 0:cbff6bf41542 145 if (flg & ((1 << 7)|(1 << 3)|(1 << 4))) {
okini3939 0:cbff6bf41542 146 // Break Time
okini3939 0:cbff6bf41542 147 if (addr_rx > 0) {
okini3939 0:cbff6bf41542 148 is_recived = 1;
okini3939 0:cbff6bf41542 149 }
okini3939 0:cbff6bf41542 150 mode_rx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 151 return;
okini3939 0:cbff6bf41542 152 }
okini3939 0:cbff6bf41542 153
okini3939 0:cbff6bf41542 154 if (mode_rx == DMX_MODE_BREAK) {
okini3939 0:cbff6bf41542 155
okini3939 0:cbff6bf41542 156 // Start Code
okini3939 0:cbff6bf41542 157 if (dat == 0) {
okini3939 0:cbff6bf41542 158 addr_rx = 0;
okini3939 0:cbff6bf41542 159 mode_rx = DMX_MODE_DATA;
okini3939 0:cbff6bf41542 160 } else {
okini3939 0:cbff6bf41542 161 mode_rx = DMX_MODE_ERROR;
okini3939 0:cbff6bf41542 162 }
okini3939 0:cbff6bf41542 163
okini3939 0:cbff6bf41542 164 } else
okini3939 0:cbff6bf41542 165 if (mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 166
okini3939 0:cbff6bf41542 167 // Data
okini3939 0:cbff6bf41542 168 data_rx[addr_rx] = dat;
okini3939 0:cbff6bf41542 169 addr_rx ++;
okini3939 0:cbff6bf41542 170
okini3939 0:cbff6bf41542 171 if (addr_rx >= DMX_SIZE) {
okini3939 0:cbff6bf41542 172 is_recived = 1;
okini3939 0:cbff6bf41542 173 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 174 }
okini3939 0:cbff6bf41542 175 }
okini3939 0:cbff6bf41542 176 }
okini3939 0:cbff6bf41542 177
okini3939 4:dd0544c80096 178 void DMX::start () {
okini3939 4:dd0544c80096 179 if (mode_tx == DMX_MODE_STOP) {
okini3939 4:dd0544c80096 180 mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 181 is_sent = 0;
okini3939 4:dd0544c80096 182 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 4:dd0544c80096 183 }
okini3939 4:dd0544c80096 184 }
okini3939 4:dd0544c80096 185
okini3939 4:dd0544c80096 186 void DMX::stop () {
okini3939 5:72039cd4c874 187 _dmx.attach(0, Serial::TxIrq);
okini3939 3:2eb66b4d99bd 188 timeout01.detach();
okini3939 4:dd0544c80096 189 mode_tx = DMX_MODE_STOP;
okini3939 3:2eb66b4d99bd 190 }