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@16:4eeb749806e5, 2015-08-20 (annotated)

Committer:
okini3939
Date:
Thu Aug 20 09:21:28 2015 +0000
Revision:
16:4eeb749806e5
Parent:
15:4ea4a31c7609
Child:
17:c9198630ba05
fix LPC4088

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
okini3939 12:1f176eee2d28 16 clear();
okini3939 4:dd0544c80096 17 // mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 18 mode_tx = DMX_MODE_STOP;
okini3939 0:cbff6bf41542 19 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 20 is_recived = 0;
okini3939 0:cbff6bf41542 21 is_sent = 0;
okini3939 16:4eeb749806e5 22 memset(data_tx, 0, sizeof(data_tx));
okini3939 16:4eeb749806e5 23 memset(data_rx, 0, sizeof(data_rx));
okini3939 0:cbff6bf41542 24
okini3939 5:72039cd4c874 25 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
okini3939 11:cb132e066057 26 if (p_rx == P0_3) {
okini3939 11:cb132e066057 27 _uart = (LPC_UART_TypeDef*)LPC_UART0;
okini3939 11:cb132e066057 28 NVIC_SetPriority(UART0_IRQn, 1);
okini3939 0:cbff6bf41542 29 } else
okini3939 0:cbff6bf41542 30 if (p_rx == p14) {
okini3939 8:d4a45bba41d2 31 _uart = (LPC_UART_TypeDef*)LPC_UART1;
okini3939 0:cbff6bf41542 32 NVIC_SetPriority(UART1_IRQn, 1);
okini3939 0:cbff6bf41542 33 } else
okini3939 0:cbff6bf41542 34 if (p_rx == p27) {
okini3939 8:d4a45bba41d2 35 _uart = LPC_UART2;
okini3939 0:cbff6bf41542 36 NVIC_SetPriority(UART2_IRQn, 1);
okini3939 11:cb132e066057 37 } else
okini3939 11:cb132e066057 38 if (p_rx == p10) {
okini3939 11:cb132e066057 39 _uart = LPC_UART3;
okini3939 11:cb132e066057 40 NVIC_SetPriority(UART3_IRQn, 1);
okini3939 0:cbff6bf41542 41 }
okini3939 13:9841af9ac344 42 #elif defined(TARGET_LPC4088)
okini3939 16:4eeb749806e5 43 if (p_rx == p10 || p_rx == P0_26 || p_rx == P4_29) {
okini3939 13:9841af9ac344 44 _uart = LPC_UART3;
okini3939 13:9841af9ac344 45 NVIC_SetPriority(UART3_IRQn, 1);
okini3939 13:9841af9ac344 46 } else
okini3939 13:9841af9ac344 47 if (p_rx == p31) {
okini3939 13:9841af9ac344 48 _uart = (LPC_UART_TypeDef*)LPC_UART4;
okini3939 13:9841af9ac344 49 NVIC_SetPriority(UART4_IRQn, 1);
okini3939 16:4eeb749806e5 50 } else
okini3939 16:4eeb749806e5 51 if (p_rx == P0_3) {
okini3939 16:4eeb749806e5 52 _uart = LPC_UART0;
okini3939 16:4eeb749806e5 53 NVIC_SetPriority(UART0_IRQn, 1);
okini3939 16:4eeb749806e5 54 } else
okini3939 16:4eeb749806e5 55 if (p_rx == P0_16 || p_rx == P2_1 || p_rx == P3_17) {
okini3939 16:4eeb749806e5 56 _uart = (LPC_UART_TypeDef*)LPC_UART1;
okini3939 16:4eeb749806e5 57 NVIC_SetPriority(UART1_IRQn, 1);
okini3939 16:4eeb749806e5 58 } else
okini3939 16:4eeb749806e5 59 if (p_rx == P0_11 || p_rx == P2_9 || p_rx == P4_23) {
okini3939 16:4eeb749806e5 60 _uart = LPC_UART2;
okini3939 16:4eeb749806e5 61 NVIC_SetPriority(UART2_IRQn, 1);
okini3939 13:9841af9ac344 62 }
okini3939 15:4ea4a31c7609 63 #elif defined(TARGET_LPC11UXX)
okini3939 5:72039cd4c874 64 if (p_rx == p10) {
okini3939 8:d4a45bba41d2 65 _uart = LPC_USART;
okini3939 5:72039cd4c874 66 NVIC_SetPriority(UART_IRQn, 1);
okini3939 5:72039cd4c874 67 }
stanly88 10:b748aab8404c 68 #elif defined(TARGET_LPC11XX)
okini3939 11:cb132e066057 69 // LPC1114 support by Stanly Chen
stanly88 10:b748aab8404c 70 if (p_rx == P1_6) {
okini3939 13:9841af9ac344 71 _uart = (LPC_UART_TypeDef*)UART_0;
stanly88 10:b748aab8404c 72 NVIC_SetPriority(UART_IRQn, 1);
stanly88 10:b748aab8404c 73 }
okini3939 5:72039cd4c874 74 #endif
okini3939 0:cbff6bf41542 75
okini3939 5:72039cd4c874 76 _dmx.baud(250000);
okini3939 5:72039cd4c874 77 _dmx.format(8, Serial::None, 2);
okini3939 5:72039cd4c874 78 _dmx.attach(this, &DMX::int_rx, Serial::RxIrq);
okini3939 0:cbff6bf41542 79
okini3939 4:dd0544c80096 80 // timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 81 }
okini3939 0:cbff6bf41542 82
okini3939 6:9e7b4eeac6ec 83 void DMX::put (int addr, int data) {
okini3939 6:9e7b4eeac6ec 84 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 85 data_tx[addr] = data;
okini3939 0:cbff6bf41542 86 }
okini3939 0:cbff6bf41542 87
okini3939 6:9e7b4eeac6ec 88 void DMX::put (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 89 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 90 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 91 memcpy(&data_tx[addr], buf, len);
okini3939 6:9e7b4eeac6ec 92 }
okini3939 6:9e7b4eeac6ec 93
okini3939 6:9e7b4eeac6ec 94 int DMX::get (int addr) {
okini3939 6:9e7b4eeac6ec 95 if (addr < 0 || addr >= DMX_SIZE) return -1;
okini3939 6:9e7b4eeac6ec 96 return data_rx[addr];
okini3939 6:9e7b4eeac6ec 97 }
okini3939 6:9e7b4eeac6ec 98
okini3939 6:9e7b4eeac6ec 99 void DMX::get (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 100 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 101 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 102 memcpy(buf, &data_rx[addr], len);
okini3939 0:cbff6bf41542 103 }
okini3939 0:cbff6bf41542 104
okini3939 0:cbff6bf41542 105 void DMX::int_timer () {
okini3939 0:cbff6bf41542 106
okini3939 0:cbff6bf41542 107 switch (mode_tx) {
okini3939 0:cbff6bf41542 108 case DMX_MODE_BEGIN:
okini3939 0:cbff6bf41542 109 // Break Time
okini3939 0:cbff6bf41542 110 timeout01.detach();
okini3939 8:d4a45bba41d2 111 _uart->LCR |= (1 << 6);
okini3939 0:cbff6bf41542 112 mode_tx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 113 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
okini3939 0:cbff6bf41542 114 break;
okini3939 0:cbff6bf41542 115
okini3939 0:cbff6bf41542 116 case DMX_MODE_BREAK:
okini3939 0:cbff6bf41542 117 // Mark After Break
okini3939 0:cbff6bf41542 118 timeout01.detach();
okini3939 8:d4a45bba41d2 119 _uart->LCR &= ~(1 << 6);
okini3939 0:cbff6bf41542 120 mode_tx = DMX_MODE_MAB;
okini3939 0:cbff6bf41542 121 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
okini3939 0:cbff6bf41542 122 break;
okini3939 0:cbff6bf41542 123
okini3939 0:cbff6bf41542 124 case DMX_MODE_MAB:
okini3939 0:cbff6bf41542 125 // Start code
okini3939 0:cbff6bf41542 126 timeout01.detach();
okini3939 0:cbff6bf41542 127 addr_tx = 0;
okini3939 0:cbff6bf41542 128 mode_tx = DMX_MODE_DATA;
okini3939 5:72039cd4c874 129 _dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
okini3939 2:d7677060f8eb 130 #ifdef DMX_UART_DIRECT
okini3939 9:e687f321c428 131 while(!(_uart->LSR & (1<<5)));
okini3939 9:e687f321c428 132 _uart->THR = DMX_START_CODE;
okini3939 2:d7677060f8eb 133 #else
okini3939 9:e687f321c428 134 _dmx.putc(DMX_START_CODE);
okini3939 2:d7677060f8eb 135 #endif
okini3939 0:cbff6bf41542 136 break;
okini3939 0:cbff6bf41542 137 }
okini3939 0:cbff6bf41542 138 }
okini3939 0:cbff6bf41542 139
okini3939 0:cbff6bf41542 140 void DMX::int_tx () {
okini3939 0:cbff6bf41542 141 // Data
okini3939 0:cbff6bf41542 142 if (mode_tx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 143 if (addr_tx < DMX_SIZE) {
okini3939 1:f0d988e15810 144 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 145 _uart->THR = (uint8_t)data_tx[addr_tx];
okini3939 0:cbff6bf41542 146 #else
okini3939 5:72039cd4c874 147 _dmx.putc(data_tx[addr_tx]);
okini3939 0:cbff6bf41542 148 #endif
okini3939 0:cbff6bf41542 149 addr_tx ++;
okini3939 0:cbff6bf41542 150 } else {
okini3939 5:72039cd4c874 151 _dmx.attach(0, Serial::TxIrq);
okini3939 0:cbff6bf41542 152 mode_tx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 153 is_sent = 1;
okini3939 0:cbff6bf41542 154 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 155 }
okini3939 0:cbff6bf41542 156 }
okini3939 0:cbff6bf41542 157 }
okini3939 0:cbff6bf41542 158
okini3939 0:cbff6bf41542 159 void DMX::int_rx () {
okini3939 0:cbff6bf41542 160 int flg, dat;
okini3939 0:cbff6bf41542 161
okini3939 8:d4a45bba41d2 162 flg = _uart->LSR;
okini3939 1:f0d988e15810 163 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 164 dat = _uart->RBR;
okini3939 1:f0d988e15810 165 #else
okini3939 5:72039cd4c874 166 dat = _dmx.getc();
okini3939 1:f0d988e15810 167 #endif
okini3939 0:cbff6bf41542 168
okini3939 0:cbff6bf41542 169 if (flg & ((1 << 7)|(1 << 3)|(1 << 4))) {
okini3939 0:cbff6bf41542 170 // Break Time
okini3939 15:4ea4a31c7609 171 if (addr_rx >= 24 && mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 172 is_recived = 1;
okini3939 0:cbff6bf41542 173 }
okini3939 0:cbff6bf41542 174 mode_rx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 175 return;
okini3939 0:cbff6bf41542 176 }
okini3939 0:cbff6bf41542 177
okini3939 0:cbff6bf41542 178 if (mode_rx == DMX_MODE_BREAK) {
okini3939 0:cbff6bf41542 179
okini3939 0:cbff6bf41542 180 // Start Code
okini3939 9:e687f321c428 181 if (dat == DMX_START_CODE) {
okini3939 0:cbff6bf41542 182 addr_rx = 0;
okini3939 0:cbff6bf41542 183 mode_rx = DMX_MODE_DATA;
okini3939 0:cbff6bf41542 184 } else {
okini3939 0:cbff6bf41542 185 mode_rx = DMX_MODE_ERROR;
okini3939 0:cbff6bf41542 186 }
okini3939 0:cbff6bf41542 187
okini3939 0:cbff6bf41542 188 } else
okini3939 0:cbff6bf41542 189 if (mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 190
okini3939 0:cbff6bf41542 191 // Data
okini3939 0:cbff6bf41542 192 data_rx[addr_rx] = dat;
okini3939 0:cbff6bf41542 193 addr_rx ++;
okini3939 0:cbff6bf41542 194
okini3939 0:cbff6bf41542 195 if (addr_rx >= DMX_SIZE) {
okini3939 0:cbff6bf41542 196 is_recived = 1;
okini3939 0:cbff6bf41542 197 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 198 }
okini3939 0:cbff6bf41542 199 }
okini3939 0:cbff6bf41542 200 }
okini3939 0:cbff6bf41542 201
okini3939 4:dd0544c80096 202 void DMX::start () {
okini3939 4:dd0544c80096 203 if (mode_tx == DMX_MODE_STOP) {
okini3939 4:dd0544c80096 204 mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 205 is_sent = 0;
okini3939 4:dd0544c80096 206 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 4:dd0544c80096 207 }
okini3939 4:dd0544c80096 208 }
okini3939 4:dd0544c80096 209
okini3939 4:dd0544c80096 210 void DMX::stop () {
okini3939 5:72039cd4c874 211 _dmx.attach(0, Serial::TxIrq);
okini3939 3:2eb66b4d99bd 212 timeout01.detach();
okini3939 4:dd0544c80096 213 mode_tx = DMX_MODE_STOP;
okini3939 3:2eb66b4d99bd 214 }
okini3939 12:1f176eee2d28 215
okini3939 12:1f176eee2d28 216 void DMX::clear () {
okini3939 12:1f176eee2d28 217 int i;
okini3939 12:1f176eee2d28 218
okini3939 12:1f176eee2d28 219 for (i = 0; i < DMX_SIZE; i ++) {
okini3939 12:1f176eee2d28 220 data_tx[i] = 0;
okini3939 12:1f176eee2d28 221 data_rx[i] = 0;
okini3939 12:1f176eee2d28 222 }
okini3939 12:1f176eee2d28 223 }