Thanks for the report

is debug on of off?

is "vmicro>compiler>deep search" on or off?

which version of visual micro shows in "tools>extensions and updates"?

I'll have to give it a try. One thing that might or might not help is ensuring the arduino.h gets included before other files. Visual Micro will auto insert the arduino.h #include during .ino build before the first code line. In your case that would be after the #includes in your code.

int dummy = 0;

#define SD_PIN 4
#define RESPONSE_BUF_SIZE 512
#define LINE_MAX 128

#include <SPI.h>
#include <Ethernet.h>

// Modify this for testing.
//#define USE_SDFAT
#ifdef USE_SDFAT
  #include <SdFat.h>
#else
  #include <SD.h>
#endif

char response_buf[RESPONSE_BUF_SIZE + 1];
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(10, 2, 1, 33);
EthernetServer http(80);
#ifdef USE_SDFAT
  SdFat SD;
#endif
bool hasSD = false;
String method;
String url;


void setup() {
  pinMode(9, OUTPUT);
  digitalWrite(9, LOW);   // begin reset the WIZ820io
  pinMode(10, OUTPUT);
  digitalWrite(10, HIGH); // de-select WIZ820io
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);  // de-select the SD Card
  digitalWrite(9, HIGH);  // end reset pulse

  hasSD = SD.begin(SD_PIN);

  Ethernet.begin(mac, ip);

  http.begin();
  Serial.print("Server is at ");
  Serial.println(Ethernet.localIP());
}

void loop() {
  EthernetClient client = http.available();
  if (client) {
    String method = "";
    String url = "";
    int numRead = 0;

    // First line is request method, url and version
    int readVal;
    while (numRead++ < LINE_MAX) {
      readVal = client.read();
      if (readVal < 0) return; // end of stream
      if (readVal == ' ') break;
      method.append((char)readVal);
    }
    while (numRead++ < LINE_MAX) {
      readVal = client.read();
      if (readVal < 0) return; // end of stream
      if (readVal == ' ') break;
      url.append((char)readVal);
    }

    // Request ends with empty line, so just read until blank line
    char prev = '\0';
    while (true) {
      readVal = client.read();
      if (readVal < 0) return; // end of stream
      if (prev == '\n' && readVal == '\n') break; // emtpy line
      if (readVal != '\r') prev = readVal;
    }

    Serial.print("method = ");
    Serial.println(method);
    Serial.print("url = ");
    Serial.println(url);

    if (method == "GET") {
      String filename = "www" + url;
      if (hasSD && SD.exists(filename.c_str())) {
        client.println("HTTP/1.1 200 OK");
        client.println("Content-Type: text/plain");
        client.println("Connection: close");
        client.println();

#ifdef USE_SDFAT
        SdFile file;
        if (file.open(filename.c_str(), FILE_READ)) {
#else
        File file = SD.open(filename.c_str());
        if (file) {
#endif
          int numRead;
          while ((numRead = file.read(response_buf, RESPONSE_BUF_SIZE)) > 0)
          {
            client.write(response_buf, numRead);
          }
          file.close();
        }
        else {
          client.println("HTTP/1.1 404 NOT FOUND");
          client.println("Content-Type: text/plain");
          client.println("Connection: close");
          client.println();

          Serial.print("Unable to open file: ");
          Serial.println(filename);
        }
      }
      else {
        client.println("HTTP/1.1 404 NOT FOUND");
        client.println("Content-Type: text/plain");
        client.println("Connection: close");
        client.println();

        Serial.print("Unable to access SD or file does not exist: ");
        Serial.println(filename);
      }

      delay(1);
      client.stop();

      Serial.println("Done");
    }
  }
}
  

Please switch on file>preferences>compile verbose in the arduino ide and build then copy the output to a .txt.

Then in visual micro switch on vmicro>compiler>verbose and "show build properties". then build and copy the output to a .txt

Then email both text files to info[at]visualmicro.com along with a link to this thread

Thanks

Thanks for the files. I think the issue is as suspected.

You can see in the Visual Micro output that these Teensy specific libraries have been discovered for the teensy board:-

C:/Program%20Files%20(x86)/Arduino/hardware/teensy/avr/libraries/SPI
C:/Program%20Files%20(x86)/Arduino/hardware/teensy/avr/libraries/Ethernet
C:/Program%20Files%20(x86)/Arduino/hardware/teensy/avr/libraries/SD


Yet we can see the Arduino IDE ignores the Teensy libraries and uses the ones installed with the IDE or ones that you have installed in documents\arduino\libraries.

C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\SPI
C:\Users\stonecypherv\Documents\Arduino\libraries\Ethernet
C:\Users\stonecypherv\Documents\Arduino\libraries\SdFat\


For now I suggest you delete the Teensy specific libraries in C:/Program%20Files%20(x86)/Arduino/hardware/teensy/avr/libraries then restart Visual Studio

I will write to Paul at Teensy to ask him what he intended for his architecture specific libraries. It doesn't make sense to me to ignore all other libs when we have libs made for the board.

The latest release in the market place should resolve the issue.

In recent builds the platform\architecture folder was given priority but this has been reverted to the following

1) Sketchbook/Libraries
2) Platform/Libraries
3) IDE/Libraries

Visual Micro v1810.3.1