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DALI send/recv library.
DALI send/recv library
lighting control protocol.
設備照明の調光プロトコル DALI を送受信するライブラリです。
DALI インターフェースの回路図などは次を参照。
- http://ww1.microchip.com/downloads/jp/AppNotes/01465A_JP.pdf
- https://www.mouser.com/pdfdocs/AN11174.pdf
Revision 1:319d52b5116b, committed 2020-07-27
- Comitter:
- okini3939
- Date:
- Mon Jul 27 05:53:55 2020 +0000
- Parent:
- 0:6cb7026982fc
- Commit message:
- bug fix;
Changed in this revision
| DALI.cpp | Show annotated file Show diff for this revision Revisions of this file |
| DALI.h | Show annotated file Show diff for this revision Revisions of this file |
diff -r 6cb7026982fc -r 319d52b5116b DALI.cpp
--- a/DALI.cpp Wed Jul 22 03:04:04 2020 +0000
+++ b/DALI.cpp Mon Jul 27 05:53:55 2020 +0000
@@ -13,11 +13,11 @@
#define BUFFER_SIZE 20
-#define TIME_BITTIME 833 // us, 1200bps
-#define TIME_BITTIME1p2 417 // us, 1200bps 3/4
+#define TIME_BITTIME 833 // us, 1200bps
+#define TIME_BITTIME1p2 417 // us, 1200bps 1/2
#define TIME_BITTIME3p4 625 // us, 1200bps 3/4
+#define TIME_BETWEEN 10000 // us >22Te
-extern Serial pc;
DALI::DALI (PinName tx, PinName rx) : _tx(tx), _rx(rx) {
_rx.mode(PullUp);
@@ -39,22 +39,22 @@
if (recv_buf->dequeue(&dat)) {
if (dat & (1<<16)) {
- *frame = DALI_BACKWARD;
+ *frame = BACKWARD;
*value = dat & 0xff;
} else {
if (dat & (1<<15)) {
// group
if (dat & (1<<8)) {
- *frame = DALI_FORWARD_GROUP_IAP;
+ *frame = FORWARD_GROUP_IAP;
} else {
- *frame = DALI_FORWARD_GROUP_DAP;
+ *frame = FORWARD_GROUP_DAP;
}
} else {
// short
if (dat & (1<<8)) {
- *frame = DALI_FORWARD_SHORT_IAP;
+ *frame = FORWARD_SHORT_IAP;
} else {
- *frame = DALI_FORWARD_SHORT_DAP;
+ *frame = FORWARD_SHORT_DAP;
}
}
*addr = (dat >> 9) & 0x3f;
@@ -71,6 +71,21 @@
void DALI::isr_send () {
+ if (! busy) {
+ if (mode) return; // recv working
+
+ _ticker.detach();
+ // next data
+ int dat, bit;
+ busy = 1;
+ send_buf->dequeue(&dat);
+ bit = (dat >> 20) & 0x0fff;
+ send_bit = (1 << bit) << 2;
+ send_data = dat & 0x0fffff;
+ halfbit = 0;
+ _ticker.attach_us(this, &DALI::isr_send, TIME_BITTIME1p2);
+ }
+
if (send_bit & 3) {
// stop bit
_tx = 0;
@@ -88,18 +103,12 @@
send_bit >>= 1;
if (send_bit == 0) {
- if (send_buf->isEmpty()) {
- // end
- _ticker.detach();
- busy = 0;
- } else {
- // next
- int dat, bit;
- send_buf->dequeue(&dat);
- bit = (dat >> 20) & 0x0fff;
- send_bit = (1 << bit) << 2;
- send_data = dat & 0x0fffff;
- halfbit = 0;
+ // end of data
+ _ticker.detach();
+ busy = 0;
+ if (! send_buf->isEmpty()) {
+ // next data
+ _ticker.attach_us(this, &DALI::isr_send, TIME_BETWEEN);
}
}
} else {
@@ -107,33 +116,35 @@
}
}
+int DALI::writable () {
+ return ! send_buf->isFull();
+}
+
int DALI::write (enum DALI_FRAME frame, int addr, int value) {
int dat, bit;
- while ((volatile int)send_bit);
-
switch (frame) {
- case DALI_FORWARD_SHORT_DAP:
+ case FORWARD_SHORT_DAP:
dat = (0<<15) | ((addr & 0x3f) << 9) | (0<<8) | (value & 0xff);
bit = 16;
break;
- case DALI_FORWARD_SHORT_IAP:
+ case FORWARD_SHORT_IAP:
dat = (0<<15) | ((addr & 0x3f) << 9) | (1<<8) | (value & 0xff);
bit = 16;
break;
- case DALI_FORWARD_GROUP_DAP:
+ case FORWARD_GROUP_DAP:
dat = (1<<15) | ((addr & 0x3f) << 9) | (0<<8) | (value & 0xff);
bit = 16;
break;
- case DALI_FORWARD_GROUP_IAP:
+ case FORWARD_GROUP_IAP:
dat = (1<<15) | ((addr & 0x3f) << 9) | (1<<8) | (value & 0xff);
bit = 16;
break;
- case DALI_BACKWARD:
+ case BACKWARD:
dat = (value & 0xff);
bit = 8;
break;
@@ -147,6 +158,8 @@
send_buf->queue(dat);
if (! busy) {
+ while (mode); // wait recv
+ // begin data
busy = 1;
send_buf->dequeue(&dat);
bit = (dat >> 20) & 0x0fff;
diff -r 6cb7026982fc -r 319d52b5116b DALI.h
--- a/DALI.h Wed Jul 22 03:04:04 2020 +0000
+++ b/DALI.h Mon Jul 27 05:53:55 2020 +0000
@@ -16,20 +16,51 @@
class DALI {
public:
enum DALI_FRAME {
- DALI_FORWARD_SHORT_DAP,
- DALI_FORWARD_SHORT_IAP,
- DALI_FORWARD_GROUP_DAP,
- DALI_FORWARD_GROUP_IAP,
- DALI_BACKWARD,
+ FORWARD_SHORT_DAP, // DIRECT ARC POWER
+ FORWARD_SHORT_IAP, // COMMAND
+ FORWARD_GROUP_DAP,
+ FORWARD_GROUP_IAP,
+ BACKWARD,
+ };
+
+ enum DALI_COMMAND {
+ OFF = 0x00,
+ UP = 0x01,
+ DOWN = 0x02,
+ STEP_UP = 0x03,
+ STEP_DOWN = 0x04,
+ RECALL_MAX_LEVEL = 0x05,
+ RECALL_MIN_LEVEL = 0x06,
+ STEP_DOWN_AND_OFF = 0x07,
+ ON_AND_STEP_UP = 0x08,
+ RESET = 0x20,
+ QUERY_STATUS = 0x90,
};
+ /** init DALI class
+ * @param tx TX port
+ * @param rx RX port (interrupt)
+ */
DALI (PinName tx, PinName rx);
+ /** Recv the data
+ * @param frame enum DALI_FRAME
+ * @param addr DALI address (short:0-63, group:0-15,63 broadcast)
+ * @param value DALI value
+ */
int read (enum DALI_FRAME *frame, int *addr, int *value);
+
int readable ();
+ /** Send the data
+ * @param frame enum DALI_FRAME
+ * @param addr DALI address (short:0-63, group:0-15,63 broadcast)
+ * @param value DALI value
+ */
int write (enum DALI_FRAME frame, int addr, int value);
+ int writable ();
+
private:
InterruptIn _rx;
DigitalOut _tx;
@@ -39,7 +70,7 @@
CircBuffer<int> *recv_buf;
CircBuffer<int> *send_buf;
- int mode;
+ volatile int mode;
int count;
int timeflg;
int recv_bit;
@@ -48,7 +79,7 @@
int send_data;
int send_bit;
int halfbit;
- int busy;
+ volatile int busy;
void isr_rx ();
void isr_timer ();