Suga koubou
DMX512 library test http://mbed.org/users/okini3939/notebook/dmx512
Revision 3:f8a105b2daf3, committed 2011-06-03
- Comitter:
- okini3939
- Date:
- Fri Jun 03 13:20:01 2011 +0000
- Parent:
- 2:eeb225671cac
- Child:
- 4:4a566dc74bfb
- Commit message:
Changed in this revision
--- a/DMX.lib Sun May 08 14:50:41 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/okini3939/code/DMX/#2156e39c3363
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/DMX/DMX.cpp Fri Jun 03 13:20:01 2011 +0000
@@ -0,0 +1,136 @@
+/*
+ * DMX512 send/recv library
+ * Copyright (c) 2011 Hiroshi Suga
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+/** @file DMX.cpp
+ * @brief DMX512 send/recv
+ */
+
+#include "mbed.h"
+#include "DMX.h"
+
+DMX::DMX (PinName p_tx, PinName p_rx) : dmx(p_tx, p_rx) {
+ int i;
+
+ for (i = 0; i < DMX_SIZE; i ++) {
+ data_tx[i] = 0;
+ data_rx[i] = 0;
+ }
+ mode_tx = DMX_MODE_BEGIN;
+ mode_rx = DMX_MODE_BEGIN;
+
+ if (p_tx == p9) {
+ uart_lcr = &LPC_UART3->LCR;
+ } else
+ if (p_tx == p13) {
+ uart_lcr = &LPC_UART1->LCR;
+ } else
+ if (p_tx == p28) {
+ uart_lcr = &LPC_UART2->LCR;
+ }
+ if (p_rx == p10) {
+ uart_lsr = &LPC_UART3->LSR;
+ } else
+ if (p_rx == p14) {
+ uart_lsr = &LPC_UART1->LSR;
+ } else
+ if (p_rx == p27) {
+ uart_lsr = &LPC_UART2->LSR;
+ }
+
+ dmx.baud(250000);
+ dmx.format(8, Serial::None, 2);
+ dmx.attach(this, &DMX::int_rx, Serial::RxIrq);
+
+ timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
+}
+
+void DMX::put (int ch, int data) {
+ data_tx[ch] = data;
+}
+
+int DMX::get (int ch) {
+ return data_rx[ch];
+}
+
+void DMX::int_timer () {
+
+ switch (mode_tx) {
+ case DMX_MODE_BEGIN:
+ // Break Time
+ timeout01.detach();
+ *uart_lcr |= (1 << 6);
+ mode_tx = DMX_MODE_BREAK;
+ timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BREAK);
+ break;
+
+ case DMX_MODE_BREAK:
+ // Mark After Break
+ timeout01.detach();
+ *uart_lcr &= ~(1 << 6);
+ mode_tx = DMX_MODE_MAB;
+ timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_MAB);
+ break;
+
+ case DMX_MODE_MAB:
+ // Start code
+ timeout01.detach();
+ addr_tx = 0;
+ mode_tx = DMX_MODE_DATA;
+ dmx.attach(this, &DMX::int_tx, Serial::TxIrq);
+ dmx.putc(0);
+ break;
+ }
+}
+
+void DMX::int_tx () {
+ // Data
+ if (mode_tx == DMX_MODE_DATA) {
+ dmx.putc(data_tx[addr_tx]);
+ addr_tx ++;
+
+ if (addr_tx >= DMX_SIZE) {
+ dmx.attach(0, Serial::TxIrq);
+ mode_tx = DMX_MODE_BEGIN;
+ timeout01.attach_us(this, &DMX::int_timer, DMX_TIME_BETWEEN);
+ }
+ }
+}
+
+void DMX::int_rx () {
+ int flg, dat;
+
+ flg = *uart_lsr;
+ dat = dmx.getc();
+
+ if (flg & (1 << 3) || flg & (1 << 4)) {
+ // Break Time
+ mode_rx = DMX_MODE_BREAK;
+ return;
+ }
+
+ if (mode_rx == DMX_MODE_BREAK) {
+
+ // Start Code
+ if (dat == 0) {
+ addr_rx = 0;
+ mode_rx = DMX_MODE_DATA;
+ } else {
+ mode_rx = DMX_MODE_ERROR;
+ }
+
+ } else
+ if (mode_rx == DMX_MODE_DATA) {
+
+ // Data
+ data_rx[addr_rx] = dat;
+ addr_rx ++;
+
+ if (addr_rx >= DMX_SIZE) {
+ mode_rx = DMX_MODE_BEGIN;
+ }
+ }
+}
+
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/DMX/DMX.h Fri Jun 03 13:20:01 2011 +0000
@@ -0,0 +1,71 @@
+/*
+ * DMX512 send/recv library
+ * Copyright (c) 2011 Hiroshi Suga
+ * Released under the MIT License: http://mbed.org/license/mit
+ */
+
+/** @file DMX.h
+ * @brief DMX512 send/recv
+ */
+
+#ifndef DMX_H
+#define DMX_H
+
+#include "mbed.h"
+
+#define DMX_SIZE 512
+#define DMX_TIME_BREAK 100 // 100us
+#define DMX_TIME_MAB 10 // 10us
+#define DMX_TIME_BETWEEN 10 // 10us
+
+enum DMX_MODE {
+ DMX_MODE_BEGIN,
+ DMX_MODE_START,
+ DMX_MODE_BREAK,
+ DMX_MODE_MAB,
+ DMX_MODE_DATA,
+ DMX_MODE_ERROR,
+};
+
+/** DMX512 class (sender/client)
+ */
+class DMX {
+public:
+ /** init DMX class
+ * @param p_tx TX serial port (p9, p13, p28)
+ * @param p_rx RX serial port (p10, p14, p27)
+ */
+ DMX (PinName p_tx, PinName p_rx);
+
+ /** Send the message
+ * @param ch DMX data address (0-511)
+ * @param data DMX data (0-255)
+ */
+ void put (int ch, int data);
+
+ /** Send the message
+ * @param ch DMX data address (0-511)
+ * @return DMX data (0-255)
+ */
+ int get (int ch);
+
+protected:
+
+ void int_timer ();
+ void int_tx ();
+ void int_rx ();
+
+ Serial dmx;
+ Timeout timeout01;
+ __IO uint8_t *uart_lcr;
+ __I uint8_t *uart_lsr;
+ volatile DMX_MODE mode_tx, mode_rx;
+ volatile int addr_tx, addr_rx;
+ unsigned char data_tx[512];
+ unsigned char data_rx[512];
+
+private:
+
+};
+
+#endif
\ No newline at end of file
--- a/main.cpp Sun May 08 14:50:41 2011 +0000
+++ b/main.cpp Fri Jun 03 13:20:01 2011 +0000
@@ -1,32 +1,40 @@
#include "mbed.h"
#include "DMX.h"
-DMX dmx(p9, p10);
-//DMX dmx(p13, p14);
-//DMX dmx(p28, p27);
+//DMX dmx0(p9, p10);
+DMX dmx1(p13, p14);
+DMX dmx2(p28, p27);
AnalogIn adc(p15);
-PwmOut led[] = {(LED1), (LED2), (LED3), (LED4)};
Serial pc(USBTX, USBRX);
+PwmOut led_r(p22), led_y(p23);
int main() {
int i, n;
+ // OUTPUT1: fade in / OUTPUT2: fade out
while(1) {
+ for (n = 0; n < 256; n ++) {
+ dmx1.put(0, n);
+ dmx2.put(0, 255 - n);
+ led_r = (float)n / 255;
+ led_y = (float)(255 - n) / 255;
+ wait(0.02);
+ }
+ }
+
+/*
+ // INPUT1 -> OUTPUT2 / INPUT2 -> OUTPUT1
+ while (1) {
+ for (i = 0; i < 512; i ++) {
+ n = dmx1.get(i);
+ dmx2.put(i, n);
+ n = dmx2.get(i);
+ dmx1.put(i, n);
+ }
+ led_r = (float)dmx1.get(0) / 255;
+ led_y = (float)dmx2.get(0) / 255;
wait(0.1);
-
- n = adc.read_u16() >> 8;
- dmx.put(0, n);
-
- pc.printf("tx: %d / ", n);
-
- pc.printf("rx: ", dmx.get(0));
- for (i = 0; i < 4; i ++) {
- n = dmx.get(i);
- led[i] = (float)n / 255.0;
- pc.printf("%d ", n);
- }
-
- pc.printf("\r\n");
}
+*/
}