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@13:9841af9ac344, 2014-01-24 (annotated)

Committer:
okini3939
Date:
Fri Jan 24 06:48:41 2014 +0000
Revision:
13:9841af9ac344
Parent:
12:1f176eee2d28
Child:
15:4ea4a31c7609
LPC4088 supported.

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 0:cbff6bf41542 22
okini3939 5:72039cd4c874 23 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
okini3939 11:cb132e066057 24 if (p_rx == P0_3) {
okini3939 11:cb132e066057 25 _uart = (LPC_UART_TypeDef*)LPC_UART0;
okini3939 11:cb132e066057 26 NVIC_SetPriority(UART0_IRQn, 1);
okini3939 0:cbff6bf41542 27 } else
okini3939 0:cbff6bf41542 28 if (p_rx == p14) {
okini3939 8:d4a45bba41d2 29 _uart = (LPC_UART_TypeDef*)LPC_UART1;
okini3939 0:cbff6bf41542 30 NVIC_SetPriority(UART1_IRQn, 1);
okini3939 0:cbff6bf41542 31 } else
okini3939 0:cbff6bf41542 32 if (p_rx == p27) {
okini3939 8:d4a45bba41d2 33 _uart = LPC_UART2;
okini3939 0:cbff6bf41542 34 NVIC_SetPriority(UART2_IRQn, 1);
okini3939 11:cb132e066057 35 } else
okini3939 11:cb132e066057 36 if (p_rx == p10) {
okini3939 11:cb132e066057 37 _uart = LPC_UART3;
okini3939 11:cb132e066057 38 NVIC_SetPriority(UART3_IRQn, 1);
okini3939 0:cbff6bf41542 39 }
okini3939 13:9841af9ac344 40 #elif defined(TARGET_LPC4088)
okini3939 13:9841af9ac344 41 if (p_rx == p10) {
okini3939 13:9841af9ac344 42 _uart = LPC_UART3;
okini3939 13:9841af9ac344 43 NVIC_SetPriority(UART3_IRQn, 1);
okini3939 13:9841af9ac344 44 } else
okini3939 13:9841af9ac344 45 if (p_rx == p31) {
okini3939 13:9841af9ac344 46 _uart = (LPC_UART_TypeDef*)LPC_UART4;
okini3939 13:9841af9ac344 47 NVIC_SetPriority(UART4_IRQn, 1);
okini3939 13:9841af9ac344 48 }
okini3939 5:72039cd4c874 49 #elif defined(TARGET_LPC11U24)
okini3939 5:72039cd4c874 50 if (p_rx == p10) {
okini3939 8:d4a45bba41d2 51 _uart = LPC_USART;
okini3939 5:72039cd4c874 52 NVIC_SetPriority(UART_IRQn, 1);
okini3939 5:72039cd4c874 53 }
stanly88 10:b748aab8404c 54 #elif defined(TARGET_LPC11XX)
okini3939 11:cb132e066057 55 // LPC1114 support by Stanly Chen
stanly88 10:b748aab8404c 56 if (p_rx == P1_6) {
okini3939 13:9841af9ac344 57 _uart = (LPC_UART_TypeDef*)UART_0;
stanly88 10:b748aab8404c 58 NVIC_SetPriority(UART_IRQn, 1);
stanly88 10:b748aab8404c 59 }
okini3939 5:72039cd4c874 60 #endif
okini3939 0:cbff6bf41542 61
okini3939 5:72039cd4c874 62 _dmx.baud(250000);
okini3939 5:72039cd4c874 63 _dmx.format(8, Serial::None, 2);
okini3939 5:72039cd4c874 64 _dmx.attach(this, &DMX::int_rx, Serial::RxIrq);
okini3939 0:cbff6bf41542 65
okini3939 4:dd0544c80096 66 // timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 67 }
okini3939 0:cbff6bf41542 68
okini3939 6:9e7b4eeac6ec 69 void DMX::put (int addr, int data) {
okini3939 6:9e7b4eeac6ec 70 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 71 data_tx[addr] = data;
okini3939 0:cbff6bf41542 72 }
okini3939 0:cbff6bf41542 73
okini3939 6:9e7b4eeac6ec 74 void DMX::put (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 75 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 76 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 77 memcpy(&data_tx[addr], buf, len);
okini3939 6:9e7b4eeac6ec 78 }
okini3939 6:9e7b4eeac6ec 79
okini3939 6:9e7b4eeac6ec 80 int DMX::get (int addr) {
okini3939 6:9e7b4eeac6ec 81 if (addr < 0 || addr >= DMX_SIZE) return -1;
okini3939 6:9e7b4eeac6ec 82 return data_rx[addr];
okini3939 6:9e7b4eeac6ec 83 }
okini3939 6:9e7b4eeac6ec 84
okini3939 6:9e7b4eeac6ec 85 void DMX::get (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 86 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 87 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 88 memcpy(buf, &data_rx[addr], len);
okini3939 0:cbff6bf41542 89 }
okini3939 0:cbff6bf41542 90
okini3939 0:cbff6bf41542 91 void DMX::int_timer () {
okini3939 0:cbff6bf41542 92
okini3939 0:cbff6bf41542 93 switch (mode_tx) {
okini3939 0:cbff6bf41542 94 case DMX_MODE_BEGIN:
okini3939 0:cbff6bf41542 95 // Break Time
okini3939 0:cbff6bf41542 96 timeout01.detach();
okini3939 8:d4a45bba41d2 97 _uart->LCR |= (1 << 6);
okini3939 0:cbff6bf41542 98 mode_tx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 99 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
okini3939 0:cbff6bf41542 100 break;
okini3939 0:cbff6bf41542 101
okini3939 0:cbff6bf41542 102 case DMX_MODE_BREAK:
okini3939 0:cbff6bf41542 103 // Mark After Break
okini3939 0:cbff6bf41542 104 timeout01.detach();
okini3939 8:d4a45bba41d2 105 _uart->LCR &= ~(1 << 6);
okini3939 0:cbff6bf41542 106 mode_tx = DMX_MODE_MAB;
okini3939 0:cbff6bf41542 107 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
okini3939 0:cbff6bf41542 108 break;
okini3939 0:cbff6bf41542 109
okini3939 0:cbff6bf41542 110 case DMX_MODE_MAB:
okini3939 0:cbff6bf41542 111 // Start code
okini3939 0:cbff6bf41542 112 timeout01.detach();
okini3939 0:cbff6bf41542 113 addr_tx = 0;
okini3939 0:cbff6bf41542 114 mode_tx = DMX_MODE_DATA;
okini3939 5:72039cd4c874 115 _dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
okini3939 2:d7677060f8eb 116 #ifdef DMX_UART_DIRECT
okini3939 9:e687f321c428 117 while(!(_uart->LSR & (1<<5)));
okini3939 9:e687f321c428 118 _uart->THR = DMX_START_CODE;
okini3939 2:d7677060f8eb 119 #else
okini3939 9:e687f321c428 120 _dmx.putc(DMX_START_CODE);
okini3939 2:d7677060f8eb 121 #endif
okini3939 0:cbff6bf41542 122 break;
okini3939 0:cbff6bf41542 123 }
okini3939 0:cbff6bf41542 124 }
okini3939 0:cbff6bf41542 125
okini3939 0:cbff6bf41542 126 void DMX::int_tx () {
okini3939 0:cbff6bf41542 127 // Data
okini3939 0:cbff6bf41542 128 if (mode_tx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 129 if (addr_tx < DMX_SIZE) {
okini3939 1:f0d988e15810 130 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 131 _uart->THR = (uint8_t)data_tx[addr_tx];
okini3939 0:cbff6bf41542 132 #else
okini3939 5:72039cd4c874 133 _dmx.putc(data_tx[addr_tx]);
okini3939 0:cbff6bf41542 134 #endif
okini3939 0:cbff6bf41542 135 addr_tx ++;
okini3939 0:cbff6bf41542 136 } else {
okini3939 5:72039cd4c874 137 _dmx.attach(0, Serial::TxIrq);
okini3939 0:cbff6bf41542 138 mode_tx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 139 is_sent = 1;
okini3939 0:cbff6bf41542 140 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 141 }
okini3939 0:cbff6bf41542 142 }
okini3939 0:cbff6bf41542 143 }
okini3939 0:cbff6bf41542 144
okini3939 0:cbff6bf41542 145 void DMX::int_rx () {
okini3939 0:cbff6bf41542 146 int flg, dat;
okini3939 0:cbff6bf41542 147
okini3939 8:d4a45bba41d2 148 flg = _uart->LSR;
okini3939 1:f0d988e15810 149 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 150 dat = _uart->RBR;
okini3939 1:f0d988e15810 151 #else
okini3939 5:72039cd4c874 152 dat = _dmx.getc();
okini3939 1:f0d988e15810 153 #endif
okini3939 0:cbff6bf41542 154
okini3939 0:cbff6bf41542 155 if (flg & ((1 << 7)|(1 << 3)|(1 << 4))) {
okini3939 0:cbff6bf41542 156 // Break Time
okini3939 8:d4a45bba41d2 157 if (addr_rx >= 24) {
okini3939 0:cbff6bf41542 158 is_recived = 1;
okini3939 0:cbff6bf41542 159 }
okini3939 0:cbff6bf41542 160 mode_rx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 161 return;
okini3939 0:cbff6bf41542 162 }
okini3939 0:cbff6bf41542 163
okini3939 0:cbff6bf41542 164 if (mode_rx == DMX_MODE_BREAK) {
okini3939 0:cbff6bf41542 165
okini3939 0:cbff6bf41542 166 // Start Code
okini3939 9:e687f321c428 167 if (dat == DMX_START_CODE) {
okini3939 0:cbff6bf41542 168 addr_rx = 0;
okini3939 0:cbff6bf41542 169 mode_rx = DMX_MODE_DATA;
okini3939 0:cbff6bf41542 170 } else {
okini3939 0:cbff6bf41542 171 mode_rx = DMX_MODE_ERROR;
okini3939 0:cbff6bf41542 172 }
okini3939 0:cbff6bf41542 173
okini3939 0:cbff6bf41542 174 } else
okini3939 0:cbff6bf41542 175 if (mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 176
okini3939 0:cbff6bf41542 177 // Data
okini3939 0:cbff6bf41542 178 data_rx[addr_rx] = dat;
okini3939 0:cbff6bf41542 179 addr_rx ++;
okini3939 0:cbff6bf41542 180
okini3939 0:cbff6bf41542 181 if (addr_rx >= DMX_SIZE) {
okini3939 0:cbff6bf41542 182 is_recived = 1;
okini3939 0:cbff6bf41542 183 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 184 }
okini3939 0:cbff6bf41542 185 }
okini3939 0:cbff6bf41542 186 }
okini3939 0:cbff6bf41542 187
okini3939 4:dd0544c80096 188 void DMX::start () {
okini3939 4:dd0544c80096 189 if (mode_tx == DMX_MODE_STOP) {
okini3939 4:dd0544c80096 190 mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 191 is_sent = 0;
okini3939 4:dd0544c80096 192 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 4:dd0544c80096 193 }
okini3939 4:dd0544c80096 194 }
okini3939 4:dd0544c80096 195
okini3939 4:dd0544c80096 196 void DMX::stop () {
okini3939 5:72039cd4c874 197 _dmx.attach(0, Serial::TxIrq);
okini3939 3:2eb66b4d99bd 198 timeout01.detach();
okini3939 4:dd0544c80096 199 mode_tx = DMX_MODE_STOP;
okini3939 3:2eb66b4d99bd 200 }
okini3939 12:1f176eee2d28 201
okini3939 12:1f176eee2d28 202 void DMX::clear () {
okini3939 12:1f176eee2d28 203 int i;
okini3939 12:1f176eee2d28 204
okini3939 12:1f176eee2d28 205 for (i = 0; i < DMX_SIZE; i ++) {
okini3939 12:1f176eee2d28 206 data_tx[i] = 0;
okini3939 12:1f176eee2d28 207 data_rx[i] = 0;
okini3939 12:1f176eee2d28 208 }
okini3939 12:1f176eee2d28 209 }