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@7:16d6874076dd, 2013-01-13 (annotated)

Committer:
okini3939
Date:
Sun Jan 13 01:35:53 2013 +0000
Revision:
7:16d6874076dd
Parent:
6:9e7b4eeac6ec
Child:
8:d4a45bba41d2
fix;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:cbff6bf41542 1 /*
okini3939 0:cbff6bf41542 2 * DMX512 send/recv library
okini3939 6:9e7b4eeac6ec 3 * Copyright (c) 2013 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 7:16d6874076dd 7 /** @file
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 6:9e7b4eeac6ec 74 void DMX::put (int addr, int data) {
okini3939 6:9e7b4eeac6ec 75 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 76 data_tx[addr] = data;
okini3939 0:cbff6bf41542 77 }
okini3939 0:cbff6bf41542 78
okini3939 6:9e7b4eeac6ec 79 void DMX::put (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 80 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 81 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 82 memcpy(&data_tx[addr], buf, len);
okini3939 6:9e7b4eeac6ec 83 }
okini3939 6:9e7b4eeac6ec 84
okini3939 6:9e7b4eeac6ec 85 int DMX::get (int addr) {
okini3939 6:9e7b4eeac6ec 86 if (addr < 0 || addr >= DMX_SIZE) return -1;
okini3939 6:9e7b4eeac6ec 87 return data_rx[addr];
okini3939 6:9e7b4eeac6ec 88 }
okini3939 6:9e7b4eeac6ec 89
okini3939 6:9e7b4eeac6ec 90 void DMX::get (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 91 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 92 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 93 memcpy(buf, &data_rx[addr], len);
okini3939 0:cbff6bf41542 94 }
okini3939 0:cbff6bf41542 95
okini3939 0:cbff6bf41542 96 void DMX::int_timer () {
okini3939 0:cbff6bf41542 97
okini3939 0:cbff6bf41542 98 switch (mode_tx) {
okini3939 0:cbff6bf41542 99 case DMX_MODE_BEGIN:
okini3939 0:cbff6bf41542 100 // Break Time
okini3939 0:cbff6bf41542 101 timeout01.detach();
okini3939 0:cbff6bf41542 102 *uart_lcr |= (1 << 6);
okini3939 0:cbff6bf41542 103 mode_tx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 104 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
okini3939 0:cbff6bf41542 105 break;
okini3939 0:cbff6bf41542 106
okini3939 0:cbff6bf41542 107 case DMX_MODE_BREAK:
okini3939 0:cbff6bf41542 108 // Mark After Break
okini3939 0:cbff6bf41542 109 timeout01.detach();
okini3939 0:cbff6bf41542 110 *uart_lcr &= ~(1 << 6);
okini3939 0:cbff6bf41542 111 mode_tx = DMX_MODE_MAB;
okini3939 0:cbff6bf41542 112 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
okini3939 0:cbff6bf41542 113 break;
okini3939 0:cbff6bf41542 114
okini3939 0:cbff6bf41542 115 case DMX_MODE_MAB:
okini3939 0:cbff6bf41542 116 // Start code
okini3939 0:cbff6bf41542 117 timeout01.detach();
okini3939 0:cbff6bf41542 118 addr_tx = 0;
okini3939 0:cbff6bf41542 119 mode_tx = DMX_MODE_DATA;
okini3939 5:72039cd4c874 120 _dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
okini3939 2:d7677060f8eb 121 #ifdef DMX_UART_DIRECT
okini3939 2:d7677060f8eb 122 *uart_thr = 0;
okini3939 2:d7677060f8eb 123 #else
okini3939 5:72039cd4c874 124 _dmx.putc(0);
okini3939 2:d7677060f8eb 125 #endif
okini3939 0:cbff6bf41542 126 break;
okini3939 0:cbff6bf41542 127 }
okini3939 0:cbff6bf41542 128 }
okini3939 0:cbff6bf41542 129
okini3939 0:cbff6bf41542 130 void DMX::int_tx () {
okini3939 0:cbff6bf41542 131 // Data
okini3939 0:cbff6bf41542 132 if (mode_tx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 133 if (addr_tx < DMX_SIZE) {
okini3939 1:f0d988e15810 134 #ifdef DMX_UART_DIRECT
okini3939 0:cbff6bf41542 135 *uart_thr = (uint8_t)data_tx[addr_tx];
okini3939 0:cbff6bf41542 136 #else
okini3939 5:72039cd4c874 137 _dmx.putc(data_tx[addr_tx]);
okini3939 0:cbff6bf41542 138 #endif
okini3939 0:cbff6bf41542 139 addr_tx ++;
okini3939 0:cbff6bf41542 140 } else {
okini3939 5:72039cd4c874 141 _dmx.attach(0, Serial::TxIrq);
okini3939 0:cbff6bf41542 142 mode_tx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 143 is_sent = 1;
okini3939 0:cbff6bf41542 144 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 145 }
okini3939 0:cbff6bf41542 146 }
okini3939 0:cbff6bf41542 147 }
okini3939 0:cbff6bf41542 148
okini3939 0:cbff6bf41542 149 void DMX::int_rx () {
okini3939 0:cbff6bf41542 150 int flg, dat;
okini3939 0:cbff6bf41542 151
okini3939 0:cbff6bf41542 152 flg = *uart_lsr;
okini3939 1:f0d988e15810 153 #ifdef DMX_UART_DIRECT
okini3939 1:f0d988e15810 154 dat = *uart_rbr;
okini3939 1:f0d988e15810 155 #else
okini3939 5:72039cd4c874 156 dat = _dmx.getc();
okini3939 1:f0d988e15810 157 #endif
okini3939 0:cbff6bf41542 158
okini3939 0:cbff6bf41542 159 if (flg & ((1 << 7)|(1 << 3)|(1 << 4))) {
okini3939 0:cbff6bf41542 160 // Break Time
okini3939 0:cbff6bf41542 161 if (addr_rx > 0) {
okini3939 0:cbff6bf41542 162 is_recived = 1;
okini3939 0:cbff6bf41542 163 }
okini3939 0:cbff6bf41542 164 mode_rx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 165 return;
okini3939 0:cbff6bf41542 166 }
okini3939 0:cbff6bf41542 167
okini3939 0:cbff6bf41542 168 if (mode_rx == DMX_MODE_BREAK) {
okini3939 0:cbff6bf41542 169
okini3939 0:cbff6bf41542 170 // Start Code
okini3939 0:cbff6bf41542 171 if (dat == 0) {
okini3939 0:cbff6bf41542 172 addr_rx = 0;
okini3939 0:cbff6bf41542 173 mode_rx = DMX_MODE_DATA;
okini3939 0:cbff6bf41542 174 } else {
okini3939 0:cbff6bf41542 175 mode_rx = DMX_MODE_ERROR;
okini3939 0:cbff6bf41542 176 }
okini3939 0:cbff6bf41542 177
okini3939 0:cbff6bf41542 178 } else
okini3939 0:cbff6bf41542 179 if (mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 180
okini3939 0:cbff6bf41542 181 // Data
okini3939 0:cbff6bf41542 182 data_rx[addr_rx] = dat;
okini3939 0:cbff6bf41542 183 addr_rx ++;
okini3939 0:cbff6bf41542 184
okini3939 0:cbff6bf41542 185 if (addr_rx >= DMX_SIZE) {
okini3939 0:cbff6bf41542 186 is_recived = 1;
okini3939 0:cbff6bf41542 187 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 188 }
okini3939 0:cbff6bf41542 189 }
okini3939 0:cbff6bf41542 190 }
okini3939 0:cbff6bf41542 191
okini3939 4:dd0544c80096 192 void DMX::start () {
okini3939 4:dd0544c80096 193 if (mode_tx == DMX_MODE_STOP) {
okini3939 4:dd0544c80096 194 mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 195 is_sent = 0;
okini3939 4:dd0544c80096 196 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 4:dd0544c80096 197 }
okini3939 4:dd0544c80096 198 }
okini3939 4:dd0544c80096 199
okini3939 4:dd0544c80096 200 void DMX::stop () {
okini3939 5:72039cd4c874 201 _dmx.attach(0, Serial::TxIrq);
okini3939 3:2eb66b4d99bd 202 timeout01.detach();
okini3939 4:dd0544c80096 203 mode_tx = DMX_MODE_STOP;
okini3939 3:2eb66b4d99bd 204 }