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@11:cb132e066057, 2013-09-20 (annotated)

Committer:
okini3939
Date:
Fri Sep 20 01:52:31 2013 +0000
Revision:
11:cb132e066057
Parent:
10:b748aab8404c
Child:
12:1f176eee2d28
support uart0

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