Stanly Chen / DMX

Add support new target MCU: LPC1114FN28 or LPC11XX

Fork of DMX by Suga koubou

DMX.cpp@10:b748aab8404c, 2013-09-05 (annotated)

Committer:
stanly88
Date:
Thu Sep 05 10:01:59 2013 +0000
Revision:
10:b748aab8404c
Parent:
9:e687f321c428 
Add support Target MCU: LPC1114FN28, or LPC11XX

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_rx == p10) {
okini3939 8:d4a45bba41d2 29 _uart = LPC_UART3;
okini3939 0:cbff6bf41542 30 NVIC_SetPriority(UART3_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 0:cbff6bf41542 39 }
okini3939 5:72039cd4c874 40 #elif defined(TARGET_LPC11U24)
okini3939 5:72039cd4c874 41 if (p_rx == p10) {
okini3939 8:d4a45bba41d2 42 _uart = LPC_USART;
okini3939 5:72039cd4c874 43 NVIC_SetPriority(UART_IRQn, 1);
okini3939 5:72039cd4c874 44 }
stanly88 10:b748aab8404c 45 #elif defined(TARGET_LPC11XX)
stanly88 10:b748aab8404c 46 if (p_rx == P1_6) {
stanly88 10:b748aab8404c 47 _uart = (LPC_UART_TypeDef*) UART_0;
stanly88 10:b748aab8404c 48 NVIC_SetPriority(UART_IRQn, 1);
stanly88 10:b748aab8404c 49 }
stanly88 10:b748aab8404c 50 if (p_tx == P1_7) {
stanly88 10:b748aab8404c 51 _uart = (LPC_UART_TypeDef*) UART_0;
stanly88 10:b748aab8404c 52 NVIC_SetPriority(UART_IRQn, 1);
stanly88 10:b748aab8404c 53 }
okini3939 5:72039cd4c874 54 #endif
okini3939 0:cbff6bf41542 55
okini3939 5:72039cd4c874 56 _dmx.baud(250000);
okini3939 5:72039cd4c874 57 _dmx.format(8, Serial::None, 2);
okini3939 5:72039cd4c874 58 _dmx.attach(this, &DMX::int_rx, Serial::RxIrq);
okini3939 0:cbff6bf41542 59
okini3939 4:dd0544c80096 60 // timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 61 }
okini3939 0:cbff6bf41542 62
okini3939 6:9e7b4eeac6ec 63 void DMX::put (int addr, int data) {
okini3939 6:9e7b4eeac6ec 64 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 65 data_tx[addr] = data;
okini3939 0:cbff6bf41542 66 }
okini3939 0:cbff6bf41542 67
okini3939 6:9e7b4eeac6ec 68 void DMX::put (unsigned char *buf, int addr, int len) {
okini3939 6:9e7b4eeac6ec 69 if (addr < 0 || addr >= DMX_SIZE) return;
okini3939 6:9e7b4eeac6ec 70 if (len > DMX_SIZE - addr) len = DMX_SIZE - addr;
okini3939 6:9e7b4eeac6ec 71 memcpy(&data_tx[addr], buf, len);
okini3939 6:9e7b4eeac6ec 72 }
okini3939 6:9e7b4eeac6ec 73
okini3939 6:9e7b4eeac6ec 74 int DMX::get (int addr) {
okini3939 6:9e7b4eeac6ec 75 if (addr < 0 || addr >= DMX_SIZE) return -1;
okini3939 6:9e7b4eeac6ec 76 return data_rx[addr];
okini3939 6:9e7b4eeac6ec 77 }
okini3939 6:9e7b4eeac6ec 78
okini3939 6:9e7b4eeac6ec 79 void DMX::get (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(buf, &data_rx[addr], len);
okini3939 0:cbff6bf41542 83 }
okini3939 0:cbff6bf41542 84
okini3939 0:cbff6bf41542 85 void DMX::int_timer () {
okini3939 0:cbff6bf41542 86
okini3939 0:cbff6bf41542 87 switch (mode_tx) {
okini3939 0:cbff6bf41542 88 case DMX_MODE_BEGIN:
okini3939 0:cbff6bf41542 89 // Break Time
okini3939 0:cbff6bf41542 90 timeout01.detach();
okini3939 8:d4a45bba41d2 91 _uart->LCR |= (1 << 6);
okini3939 0:cbff6bf41542 92 mode_tx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 93 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
okini3939 0:cbff6bf41542 94 break;
okini3939 0:cbff6bf41542 95
okini3939 0:cbff6bf41542 96 case DMX_MODE_BREAK:
okini3939 0:cbff6bf41542 97 // Mark After Break
okini3939 0:cbff6bf41542 98 timeout01.detach();
okini3939 8:d4a45bba41d2 99 _uart->LCR &= ~(1 << 6);
okini3939 0:cbff6bf41542 100 mode_tx = DMX_MODE_MAB;
okini3939 0:cbff6bf41542 101 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
okini3939 0:cbff6bf41542 102 break;
okini3939 0:cbff6bf41542 103
okini3939 0:cbff6bf41542 104 case DMX_MODE_MAB:
okini3939 0:cbff6bf41542 105 // Start code
okini3939 0:cbff6bf41542 106 timeout01.detach();
okini3939 0:cbff6bf41542 107 addr_tx = 0;
okini3939 0:cbff6bf41542 108 mode_tx = DMX_MODE_DATA;
okini3939 5:72039cd4c874 109 _dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
okini3939 2:d7677060f8eb 110 #ifdef DMX_UART_DIRECT
okini3939 9:e687f321c428 111 while(!(_uart->LSR & (1<<5)));
okini3939 9:e687f321c428 112 _uart->THR = DMX_START_CODE;
okini3939 2:d7677060f8eb 113 #else
okini3939 9:e687f321c428 114 _dmx.putc(DMX_START_CODE);
okini3939 2:d7677060f8eb 115 #endif
okini3939 0:cbff6bf41542 116 break;
okini3939 0:cbff6bf41542 117 }
okini3939 0:cbff6bf41542 118 }
okini3939 0:cbff6bf41542 119
okini3939 0:cbff6bf41542 120 void DMX::int_tx () {
okini3939 0:cbff6bf41542 121 // Data
okini3939 0:cbff6bf41542 122 if (mode_tx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 123 if (addr_tx < DMX_SIZE) {
okini3939 1:f0d988e15810 124 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 125 _uart->THR = (uint8_t)data_tx[addr_tx];
okini3939 0:cbff6bf41542 126 #else
okini3939 5:72039cd4c874 127 _dmx.putc(data_tx[addr_tx]);
okini3939 0:cbff6bf41542 128 #endif
okini3939 0:cbff6bf41542 129 addr_tx ++;
okini3939 0:cbff6bf41542 130 } else {
okini3939 5:72039cd4c874 131 _dmx.attach(0, Serial::TxIrq);
okini3939 0:cbff6bf41542 132 mode_tx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 133 is_sent = 1;
okini3939 0:cbff6bf41542 134 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 0:cbff6bf41542 135 }
okini3939 0:cbff6bf41542 136 }
okini3939 0:cbff6bf41542 137 }
okini3939 0:cbff6bf41542 138
okini3939 0:cbff6bf41542 139 void DMX::int_rx () {
okini3939 0:cbff6bf41542 140 int flg, dat;
okini3939 0:cbff6bf41542 141
okini3939 8:d4a45bba41d2 142 flg = _uart->LSR;
okini3939 1:f0d988e15810 143 #ifdef DMX_UART_DIRECT
okini3939 8:d4a45bba41d2 144 dat = _uart->RBR;
okini3939 1:f0d988e15810 145 #else
okini3939 5:72039cd4c874 146 dat = _dmx.getc();
okini3939 1:f0d988e15810 147 #endif
okini3939 0:cbff6bf41542 148
okini3939 0:cbff6bf41542 149 if (flg & ((1 << 7)|(1 << 3)|(1 << 4))) {
okini3939 0:cbff6bf41542 150 // Break Time
okini3939 8:d4a45bba41d2 151 if (addr_rx >= 24) {
okini3939 0:cbff6bf41542 152 is_recived = 1;
okini3939 0:cbff6bf41542 153 }
okini3939 0:cbff6bf41542 154 mode_rx = DMX_MODE_BREAK;
okini3939 0:cbff6bf41542 155 return;
okini3939 0:cbff6bf41542 156 }
okini3939 0:cbff6bf41542 157
okini3939 0:cbff6bf41542 158 if (mode_rx == DMX_MODE_BREAK) {
okini3939 0:cbff6bf41542 159
okini3939 0:cbff6bf41542 160 // Start Code
okini3939 9:e687f321c428 161 if (dat == DMX_START_CODE) {
okini3939 0:cbff6bf41542 162 addr_rx = 0;
okini3939 0:cbff6bf41542 163 mode_rx = DMX_MODE_DATA;
okini3939 0:cbff6bf41542 164 } else {
okini3939 0:cbff6bf41542 165 mode_rx = DMX_MODE_ERROR;
okini3939 0:cbff6bf41542 166 }
okini3939 0:cbff6bf41542 167
okini3939 0:cbff6bf41542 168 } else
okini3939 0:cbff6bf41542 169 if (mode_rx == DMX_MODE_DATA) {
okini3939 0:cbff6bf41542 170
okini3939 0:cbff6bf41542 171 // Data
okini3939 0:cbff6bf41542 172 data_rx[addr_rx] = dat;
okini3939 0:cbff6bf41542 173 addr_rx ++;
okini3939 0:cbff6bf41542 174
okini3939 0:cbff6bf41542 175 if (addr_rx >= DMX_SIZE) {
okini3939 0:cbff6bf41542 176 is_recived = 1;
okini3939 0:cbff6bf41542 177 mode_rx = DMX_MODE_BEGIN;
okini3939 0:cbff6bf41542 178 }
okini3939 0:cbff6bf41542 179 }
okini3939 0:cbff6bf41542 180 }
okini3939 0:cbff6bf41542 181
okini3939 4:dd0544c80096 182 void DMX::start () {
okini3939 4:dd0544c80096 183 if (mode_tx == DMX_MODE_STOP) {
okini3939 4:dd0544c80096 184 mode_tx = DMX_MODE_BEGIN;
okini3939 4:dd0544c80096 185 is_sent = 0;
okini3939 4:dd0544c80096 186 timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
okini3939 4:dd0544c80096 187 }
okini3939 4:dd0544c80096 188 }
okini3939 4:dd0544c80096 189
okini3939 4:dd0544c80096 190 void DMX::stop () {
okini3939 5:72039cd4c874 191 _dmx.attach(0, Serial::TxIrq);
okini3939 3:2eb66b4d99bd 192 timeout01.detach();
okini3939 4:dd0544c80096 193 mode_tx = DMX_MODE_STOP;
okini3939 3:2eb66b4d99bd 194 }