I am trying to do CAN DATE Analyze by using Arduino NANO+MCP2515 module, got a error message of:invalid conversion from 'const char*' to 'int' [-fpermissive]
need help please.
Thanks
Adam
// this sketch was brutally hacked together by TJ Bruno --- https://medium.com/@tbruno25
#include <mcp_can.h>
#include <SPI.h>
unsigned long int rxId;
unsigned char len = 0;
unsigned char rxBuf[8];
bool displayOnce;
bool displaySend;
bool x;
bool msgInput;
bool idInput;
bool lengthInput;
bool selection;
byte idLength;
char id[10];
char msg[35];
unsigned char byteMsg[9];
int r;
int t;
int y;
int byteLength;
long int byteId;
String command;
#define CAN0_INT 2 // Set INT to pin 2
MCP_CAN CAN0(10); // Set CS to pin 10
void setup()
{
Serial.begin(115200);
if (CAN0.begin(MCP_ANY, CAN_125KBPS, MCP_8MHZ) == CAN_OK)
{
CAN0.setMode(MCP_NORMAL);
pinMode(CAN0_INT, INPUT);
}
}
void loop1()
{
if (displayOnce == false) {
menu();
}
while (selection == false)
{
if (Serial.available())
{
command = Serial.readStringUntil('\n');
if (command.equals("receive"))
{
selection = true;
loop();
}
else if (command.equals("send"))
{
selection = true;
for (int x = 0; x < 50; x++) Serial.println();
send();
}
}
}
}
void send()
{
sendMenu();
clear();
for (int x = 0; x < 1; x++)
{
if (byteId > 2048)
{
r = 1;
}
else
{
r = 0;
}
Serial.print("id = "); Serial.print(byteId, HEX);
Serial.print(" length = "); Serial.print(byteLength);
Serial.print(" msg = "); while (t < byteLength)
{
Serial.print(byteMsg[t], HEX); Serial.print(" "); t++;
}
Serial.println(); Serial.println(); Serial.println("To send , press [enter].");
Serial.println(); Serial.println();
}
while (msgInput = true)
{
if (Serial.available())
{
command = Serial.readStringUntil('\n');
if (command.equals(""))
{
byte sndStat = CAN0.sendMsgBuf(byteId, r, byteLength, byteMsg);
Serial.println("Message Sent!");
}
if (command.equals("C") or command.equals("c"))
{
clear();
t = 0;
byteLength = "";
displayOnce = false;
msgInput = false;
selection = false;
loop1();
}
}
}
}
void loop()
{
while (!digitalRead(CAN0_INT))
{
CAN0.readMsgBuf(&rxId, &len, rxBuf);
Serial.print("FRAME:ID=");
if ((rxId & 0x80000000) == 0x80000000)
{
Serial.print(rxId & 0x1FFFFFFF);
}
else
{
Serial.print(rxId);
}
Serial.print(":LEN=");
Serial.print(len);
char msgString[3];
for (byte i = 0; i < len; i++)
{
Serial.print(":");
snprintf(msgString, 3, "%02X", rxBuf[i]);
Serial.print(msgString);
}
if (Serial.available())
{
command = Serial.readStringUntil('\n');
if (command.equals("C") or command.equals("c"))
{
clear();
selection = false;
x = false;
loop1();
}
}
Serial.println();
}
if (digitalRead(CAN0_INT))
{
if (x == false)
{
clear();
Serial.println("||||| Nothing to read ||||| or ||||| Can bus not detected |||||");
for (int x = 0; x < 12 ; x++)Serial.println();
x = true;
}
}
if (Serial.available())
{
command = Serial.readStringUntil('\n');
if (command.equals("C") or command.equals("c"))
{
clear();
selection = false;
x = false;
loop1();
}
}
}
void clear()
{
while (Serial.available())
{
char t = Serial.read();
}
for (int x = 0; x < 50; x++) Serial.println(); // clear the monitor text
displayOnce = false; //display menu options
}
void menu()
{
delay(750);
Serial.println(); Serial.println(); Serial.println();
Serial.println("Type 'receive' to monitor the bus");
Serial.println(" or");
Serial.println("Type 'send' to transmit a message");
Serial.println(); Serial.println(); Serial.println();
delay(1000);
Serial.println("Type 'C' to return back to this menu");
Serial.println(); Serial.println(); Serial.println(); Serial.println();
displayOnce = true;
return;
}
void sendMenu()
{
Serial.println("What is the can id?");
Serial.println(); Serial.println(); Serial.println();
while (idInput == false)
{
if (Serial.available())
{
Serial.readBytesUntil('\n', id, 10);
unsigned long k;
char *endptr;
k = strtol(id, &endptr, 16);
byteId = k;
idInput = true;
}
}
Serial.println("How many bytes is the message?");
Serial.println(); Serial.println(); Serial.println();
while (lengthInput == false)
{
if (Serial.available())
{
byteLength = Serial.parseInt();
if ((byteLength > 0) && (byteLength < 9))
{
lengthInput = true;
}
}
}
Serial.print("Input the message data"); Serial.print(" ");
Serial.print("***NOTE: "); Serial.print("Use the following format: A1,B2,C3,etc."); Serial.println();
while (msgInput == false)
{
if (Serial.available())
{
Serial.readBytesUntil(',', msg, 3);
int z;
char *endptr;
z = strtol(msg, &endptr, 16);
byteMsg[y - 1] = z;
y++;
}
if (y > byteLength )
{
idInput = false;
lengthInput = false;
msgInput = true;
y = 0;
}
}
}
post004.txt (9.09 KB)
