大家好 我们部门的任务是介绍DALI数字接口。 此外，还演示了该界面的操作。 如果有必要，那么这是必要的。 我们只是没有做。 为此，提供了两个用于LED照明器的控制模块。 两者都被驱动。 主人呢？ 我们开始选择控制器来控制此接口。 结果，价格要么很高，要么交货时间相同。 假期快到了，我不想再推迟了。 我们再次查看了这些特征，并提请注意此数字协议的特征：
- DALI是一种开放协议；
- DALI是分散式总线，也就是说，它没有中央控制器，并且允许任何拓扑。
所有这些看起来都很有吸引力，而且任务似乎也不难。 乍看之下。 我们决定在Arduino上制作DALI大师。
非常感谢Timur Nabiev
在哈布雷上的发表 。 请阅读。 我不会重复我自己，他规定了一个很好的理论。 界面布局-这并不容易。 但是在他出版的图书馆中，有些事情对我们来说不是很好。
因此，我们决定制作草图。 他们做了两个。 首先是为网络的所有“成员”分配短地址。
检视#define DALI_TX_PIN 3 #define DALI_RX_PIN A0 #define LED_PIN 13 #define RESET 0b00100000 #define INITIALISE 0xA5 #define RANDOMISE 0xA7 #define SEARCHADDRH 0xB1 #define SEARCHADDRM 0xB3 #define SEARCHADDRL 0xB5 #define PRG_SHORT_ADDR 0xB7 #define COMPARE 0xA9 #define WITHDRAW 0xAB #define TERMINATE 0xA1 #define START_SHORT_ADDR 2 #define DALI_ANALOG_LEVEL 650 #define DALI_HALF_BIT_TIME 416 //microseconds #define DALI_TWO_PACKET_DELAY 10 //miliseconds #define DALI_RESPONSE_DELAY_COUNT 15 // // uint8_t ShortAddr = START_SHORT_ADDR; void setup() { pinMode(LED_PIN, OUTPUT); digitalWrite(LED_PIN, LOW); pinMode(DALI_TX_PIN, OUTPUT); digitalWrite(DALI_TX_PIN, HIGH); Serial.begin(115200); DaliInit(); } //----------------------------------------------------- void loop() { } //----------------------------------------------------- void DaliInit() { Serial.println("Initialization..."); DaliTransmitCMD(RESET, 0x00); delay(2*DALI_TWO_PACKET_DELAY); DaliTransmitCMD(RESET, 0x00); delay(2*DALI_TWO_PACKET_DELAY); delay(100); DaliTransmitCMD(INITIALISE, 0x00); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(INITIALISE, 0x00); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(INITIALISE, 0x00); delay(DALI_TWO_PACKET_DELAY); delay(100); DaliTransmitCMD(RANDOMISE, 0x00); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(RANDOMISE, 0x00); delay(DALI_TWO_PACKET_DELAY); delay(100); while(ShortAddr < 64) { long SearchAddr = 0xFFFFFF; bool Response = 0; long LowLimit = 0; long HighLimit = 0x1000000; Response = SearchAndCompare(SearchAddr); delay(DALI_TWO_PACKET_DELAY); if(Response) { digitalWrite(LED_PIN, LOW); Serial.println("Device detected, address searching..."); if(!SearchAndCompare(SearchAddr - 1)) { delay(DALI_TWO_PACKET_DELAY); SearchAndCompare(SearchAddr); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(PRG_SHORT_ADDR, ((ShortAddr << 1) | 1)); delay(3*DALI_TWO_PACKET_DELAY); DaliTransmitCMD(WITHDRAW, 0x00); Serial.print("24-bit address found: 0x"); Serial.println(SearchAddr, HEX); Serial.print("Assigning short address "); Serial.println(ShortAddr); break; } } else { Serial.println("No devices detected"); break; } while(1) { SearchAddr = (long)((LowLimit + HighLimit) / 2); Response = SearchAndCompare(SearchAddr); delay(DALI_TWO_PACKET_DELAY); if (Response) { digitalWrite(LED_PIN, LOW); if ((SearchAddr == 0) || (!SearchAndCompare(SearchAddr - 1))) break; HighLimit = SearchAddr; } else LowLimit = SearchAddr; } delay(DALI_TWO_PACKET_DELAY); SearchAndCompare(SearchAddr); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(PRG_SHORT_ADDR, ((ShortAddr << 1) | 1)); delay(5*DALI_TWO_PACKET_DELAY); DaliTransmitCMD(WITHDRAW, 0x00); delay(DALI_TWO_PACKET_DELAY); Serial.print("24-bit address found: 0x"); Serial.println(SearchAddr, HEX); Serial.print("Assigning short address "); Serial.println(ShortAddr); ShortAddr++; // break; // } delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(TERMINATE, 0x00); delay(DALI_TWO_PACKET_DELAY); Serial.println("Init complete"); } //------------------------------------------------- bool SearchAndCompare(long SearchAddr) { bool Response = 0; uint8_t HighByte = SearchAddr >> 16; uint8_t MiddleByte = SearchAddr >> 8; uint8_t LowByte = SearchAddr; for(uint8_t i = 0; i < 3; i++) { DaliTransmitCMD(SEARCHADDRH, HighByte); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(SEARCHADDRM, MiddleByte); delay(DALI_TWO_PACKET_DELAY); DaliTransmitCMD(SEARCHADDRL, LowByte); delay(DALI_TWO_PACKET_DELAY); } DaliTransmitCMD(COMPARE, 0x00); delayMicroseconds(7 * DALI_HALF_BIT_TIME); for(uint8_t i = 0; i < DALI_RESPONSE_DELAY_COUNT; i++) { if (analogRead(DALI_RX_PIN) < DALI_ANALOG_LEVEL) { Response = 1; digitalWrite(LED_PIN, HIGH); break; } delayMicroseconds(DALI_HALF_BIT_TIME); } return Response; } //------------------------------------------------- void DaliTransmitCMD(uint8_t Part1, uint8_t Part2) { uint8_t DALI_CMD[] = { Part1, Part2 }; // digitalWrite(DALI_TX_PIN, LOW); delayMicroseconds(DALI_HALF_BIT_TIME); digitalWrite(DALI_TX_PIN, HIGH); delayMicroseconds(DALI_HALF_BIT_TIME); // for (uint8_t CmdPart = 0; CmdPart < 2; CmdPart++) { for(int i = 7; i >= 0; i--) { bool BitToSend = false; if ((DALI_CMD[CmdPart] >> i) & 1) BitToSend = true; if (BitToSend) digitalWrite(DALI_TX_PIN, LOW); else digitalWrite(DALI_TX_PIN, HIGH); delayMicroseconds(DALI_HALF_BIT_TIME); if (BitToSend) digitalWrite(DALI_TX_PIN, HIGH); else digitalWrite(DALI_TX_PIN, LOW); delayMicroseconds(DALI_HALF_BIT_TIME); } } digitalWrite(DALI_TX_PIN, HIGH); }
或下载这是一个测试。 我们控制连接到DALI的两个模块。
检视 #define DALI_TX_PIN 3 #define DALI_RX_PIN A0 #define BROADCAST_CMD 0b11111111 #define DOWN 0b00000010 #define UP 0b00000001 #define DALI_CHNL_COUNT 4 #define LAMP_OFF_VALUE 0 #define DALI_HALF_BIT_TIME 416 //microseconds #define DALI_TWO_PACKET_DELAY 10 //miliseconds // uint8_t AnalogPins[DALI_CHNL_COUNT] = {A1, A2, A3, A4, }; // uint8_t KeyPins[DALI_CHNL_COUNT] = {4, 5, 6, 7, }; uint8_t DALIPrevVals[DALI_CHNL_COUNT] = {0, 0, 0, 0}; uint8_t LampState[DALI_CHNL_COUNT] = {0, 0, 0, 0}; void setup() { pinMode(DALI_TX_PIN, OUTPUT); digitalWrite(DALI_TX_PIN, HIGH); for(uint8_t i = 0; i < DALI_CHNL_COUNT; i++) { pinMode(KeyPins[i], INPUT); digitalWrite(KeyPins[i], HIGH); } } void loop() { for(uint8_t PWM = 2; PWM < DALI_CHNL_COUNT; PWM++) { if (LampState[PWM] == 1) { uint16_t ADCValue = analogRead(AnalogPins[PWM]); if (ADCValue > 1016) ADCValue = 1016; ADCValue /= 4; uint8_t PWMVal = ADCValue; if (abs(DALIPrevVals[PWM] - PWMVal) >= 1) { DALIPrevVals[PWM] = PWMVal; DaliTransmitCMD(PWM << 1, PWMVal); if (LampState[PWM] == 0) LampState[PWM] = 1; delay(DALI_TWO_PACKET_DELAY); } } } for(uint8_t KEY = 0; KEY < DALI_CHNL_COUNT; KEY++) { if (digitalRead(KeyPins[KEY]) == LOW) { delay(70); if (KEY == 0) { DaliTransmitCMD(BROADCAST_CMD, UP); delay(DALI_TWO_PACKET_DELAY); break; } else if (KEY == 1) { DaliTransmitCMD(BROADCAST_CMD, DOWN); delay(DALI_TWO_PACKET_DELAY); break; } if (digitalRead(KeyPins[KEY]) == LOW) { if (LampState[KEY] == 0) { LampState[KEY] = 1; uint16_t ADCValue = analogRead(AnalogPins[KEY]); if (ADCValue > 1016) ADCValue = 1016; ADCValue /= 4; uint8_t PWMVal = ADCValue; DaliTransmitCMD(KEY << 1, PWMVal); } else { LampState[KEY] = 0; DaliTransmitCMD(KEY << 1, LAMP_OFF_VALUE); } delay(DALI_TWO_PACKET_DELAY); } delay(500); } } } //------------------------------------------------- void DaliTransmitCMD(uint8_t Part1, uint8_t Part2) { uint8_t DALI_CMD[] = { Part1, Part2 }; // digitalWrite(DALI_TX_PIN, LOW); delayMicroseconds(DALI_HALF_BIT_TIME); digitalWrite(DALI_TX_PIN, HIGH); delayMicroseconds(DALI_HALF_BIT_TIME); // for (uint8_t CmdPart = 0; CmdPart < 2; CmdPart++) { for(int i = 7; i >= 0; i--) { bool BitToSend = false; if ((DALI_CMD[CmdPart] >> i) & 1) BitToSend = true; if (BitToSend) digitalWrite(DALI_TX_PIN, LOW); else digitalWrite(DALI_TX_PIN, HIGH); delayMicroseconds(DALI_HALF_BIT_TIME); if (BitToSend) digitalWrite(DALI_TX_PIN, HIGH); else digitalWrite(DALI_TX_PIN, LOW); delayMicroseconds(DALI_HALF_BIT_TIME); } } digitalWrite(DALI_TX_PIN, HIGH); }
或下载许多工作已经完成，因此我想与大家分享。 也许这会使某人的开发更加容易。
在网络上找不到完整的库。 请使用，一切都正常。 提出问题，我将尽力与同事一起回答所有问题。 也许不是马上，我们真的假期了两个星期。
在视频报告中完成了工作。
从Mean Well测试了DAP-04和LCM-60DA模块。 但它可以与其他任何人一起使用。
这是Arduino主体套件方案，可将其同时传输到DALI主模式和电源。
这是测试草图的按钮的连接。
这是一个小型的DALI网络
