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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,133 +1,21 @@ | ||
| /*! | ||
| * @file receiveInterrupt.ino | ||
| * @brief CAN-BUS Shield, receive data with interrupt mode when in interrupt mode, | ||
| * @n the data coming can't be too fast, must >20ms, or else you can use check mode | ||
| * @copyright Copyright (c) 2010 DFRobot Co.Ltd (http://www.dfrobot.com) | ||
| * @license The MIT License (MIT) | ||
| * @author Arduinolibrary | ||
| * @maintainer [qsjhyy]([email protected]) | ||
| * @version V1.0 | ||
| * @date 2022-05-25 | ||
| * @url https://github.com/DFRobot/DFRobot_MCP2515 | ||
| */ | ||
| #include "DFRobot_MCP2515.h" | ||
| #include <ADCInput.h> | ||
|
|
||
| const int SPI_CS_PIN = 17; | ||
| DFRobot_MCP2515 CAN(SPI_CS_PIN); // Set CS pin | ||
| ADCInput RPulse(A0); | ||
| // For stereo/dual mikes, could use thi | ||
| // ADCInput(A0, A1); | ||
|
|
||
| unsigned char flagRecv = 0; | ||
| unsigned char len = 0; | ||
| unsigned char buf[8]; | ||
| char str[20]; | ||
| String BuildMessage = ""; | ||
| void setup() { | ||
| Serial.begin(115200); | ||
|
|
||
| void setup() | ||
| { | ||
| Serial.begin(115200); | ||
| RPulse.begin(8000); | ||
|
|
||
| while (CAN.begin(CAN_500KBPS)) | ||
| { // init can bus : baudrate = 500k | ||
| Serial.println("DFROBOT's CAN BUS Shield init fail"); | ||
| Serial.println("Please Init CAN BUS Shield again"); | ||
| delay(3000); | ||
| } | ||
| Serial.println("DFROBOT's CAN BUS Shield init ok!\n"); | ||
|
|
||
| attachInterrupt(20, MCP2515_ISR, FALLING); // start interrupt | ||
| } | ||
|
|
||
| void MCP2515_ISR() | ||
| { | ||
| flagRecv = 1; | ||
| while (1) { | ||
| Serial.printf("%d\n", RPulse.read()); | ||
| // For stereo/dual mikes, use this | ||
| // Serial.printf("%d %d\n", mike. | ||
| } | ||
| } | ||
| #define INT32U unsigned long int | ||
| INT32U canId = 0x000; | ||
| unsigned char pidchk[8] = {2, 1, 0, 0, 0, 0, 0, 0}; | ||
| unsigned char milClr[8] = {2, 1, 1, 0, 0, 0, 0, 0}; | ||
| unsigned char coolTemp[8] = {2, 1, 5, 0, 0, 0, 0, 0}; | ||
| unsigned char rpmm[8] = {2, 1, 12, 0, 0, 0, 0, 0}; | ||
| unsigned char ambtemp[8] = {2, 1, 70, 0, 0, 0, 0, 0}; | ||
| void loop() | ||
| { | ||
|
|
||
| char Order = Serial.read(); | ||
| if (Order == '1') | ||
| { | ||
| CAN.sendMsgBuf(0x02, 0, 8, pidchk); | ||
| Order = 0; | ||
| } | ||
| else if (Order == '2') | ||
| { | ||
| CAN.sendMsgBuf(0x02, 0, 8, milClr); | ||
| Order = 0; | ||
| } | ||
| else if (Order == '3') | ||
| { | ||
| CAN.sendMsgBuf(0x02, 0, 8, coolTemp); | ||
| Order = 0; | ||
| } | ||
| else if (Order == '4') | ||
| { | ||
| CAN.sendMsgBuf(0x02, 0, 8, rpmm); | ||
| Order = 0; | ||
| } | ||
| else if (Order == '5') | ||
| { | ||
| CAN.sendMsgBuf(0x02, 0, 8, ambtemp); | ||
| Order = 0; | ||
| } | ||
| else if (Order == 0) | ||
| { | ||
| } | ||
| if (flagRecv) | ||
| { // check if get data | ||
|
|
||
| flagRecv = 0; // clear flag | ||
|
|
||
| // iterate over all pending messages | ||
| // If either the bus is saturated or the MCU is busy, | ||
| // both RX buffers may be in use and after having read a single | ||
| // message, MCU does clear the corresponding IRQ conditon. | ||
| while (CAN_MSGAVAIL == CAN.checkReceive()) | ||
| { | ||
| // read data, len: data length, buf: data buf | ||
| CAN.readMsgBuf(&len, buf); | ||
| canId = CAN.getCanId(); | ||
| if (canId == 0x7E8) | ||
| { | ||
| if (buf[0] == 4 && buf[1] == 65) | ||
| { | ||
| switch (buf[2]) | ||
| { | ||
| case 70: | ||
| Serial.print("Ambient Temperature: "); | ||
| Serial.println(buf[3]); | ||
| break; | ||
| case 63: | ||
| Serial.println("Status Cleared."); | ||
| break; | ||
| case 5: | ||
| Serial.print("Coolant Temperature: "); | ||
| Serial.println(buf[3], OCT); | ||
| break; | ||
| case 12: | ||
| Serial.print("TachoMeter: "); | ||
| Serial.println(buf[3], OCT); | ||
| break; | ||
|
|
||
| default: | ||
| break; | ||
| } | ||
| } | ||
| } else if (canId) | ||
| // print the data | ||
| for (int i = 0; i < len; i++) | ||
| { | ||
| BuildMessage = BuildMessage + buf[i] + ","; | ||
| } | ||
| Serial.println(BuildMessage); | ||
| BuildMessage = ""; | ||
| Serial.println(" "); | ||
| } | ||
| } | ||
| void loop() { | ||
| /* Nothing here */ | ||
| } |