If you want to make sure that you have all of the ARM headers for your program you can enter and run the following task:

{
  "label": "copyARMheaders",
  "type": "shell",
  "command": "mkdir ${workspaceFolder}/include/;
       scp -r  ${config:sshUser}@${config:sshEndpoint}:
             /usr/include ${workspaceFolder}/include/ ",
  "problemMatcher": [],
   "presentation": {
        "showReuseMessage": true,
        "clear": true
   }
}

This copies all of the headers to a new include folder. You will also need to add:

#define __ARM_PCS_VFP

to the start of some of your programs to make all of the spurious intelligent errors go away. This symbol is defined by the compiler at run time to select hardware or software floating point operations. Programs that use headers that depend on the hardware specification generate errors on the local machine as they don’t know the configuration. Notice that none of this has any effect on the program that runs on the remote machine it simply suppresses errors that you see on the local machine as VS Code attempts to find pre-compile errors.

The complete tasks.json is:

{
 "version": "2.0.0",
 "tasks": 
   {
    "label": "copyToRemote",
    "type": "shell",
    "command": "scp -r ${fileDirname} ${config:sshUser}@
       ${config:sshEndpoint}:${config:remoteDirectory}/",
    "problemMatcher": [],
    "presentation": {
     "showReuseMessage": false,
     "clear": true
    }
  },
  {
     "label": "copyHeader",
     "type": "shell",
     "command": "mkdir ${workspaceFolder}/headers/ ;
       scp -r  ${config:sshUser}@${config:sshEndpoint}:
          ${config:header} ${workspaceFolder}/headers/ ",
     "problemMatcher": [],
     "presentation": {
      "showReuseMessage": false,
      "clear": true
     }
   },
   
   {
     "label": "buildRemote",
     "type": "shell",
     "command": "ssh ${config:sshUser}@
          ${config:sshEndpoint} 
          'gcc  -g -std=${config:std} 
        ${config:remoteDirectory}/${relativeFileDirname}/
               ${fileBasename} ${config:libs}  
     -o${config:remoteDirectory}/${relativeFileDirname}/
                ${fileBasenameNoExtension}.exe'",
     "problemMatcher": [],
     "presentation": {
       "showReuseMessage": false,
       "clear": false
      }
  },
  {
     "label": "runRemote",
     "type": "shell",
     "command": "ssh ${config:sshUser}@${config:sshEndpoint} 
        '${config:remoteDirectory}/${relativeFileDirname}/
                    ${fileBasenameNoExtension}.exe'",
     "problemMatcher": [
        "$gcc"
      ],
     "presentation": {
        "showReuseMessage": true,
        "clear": false
     }
  },
  {
     "label": "CopyBuildRunRemote",
     "dependsOrder": "sequence",
     "dependsOn": [
        "copyToRemote",
        "buildRemote",
        "runRemote"
      ],
     "problemMatcher": [],
     "group": {
         "kind": "build",
         "isDefault": true
     }
  },
  {
     "label": "CopyBuildRemote",
     "dependsOrder": "sequence",
     "dependsOn": [
         "copyToRemote",
         "buildRemote",            
     ],
     "problemMatcher": [],      
  },
  {
     "label": "StopREmoteC",
     "type": "shell",
     "command": "ssh ${config:sshUser}@
           ${config:sshEndpoint} 
           'pkill ${fileBasenameNoExtension}.exe'",
     "problemMatcher": [],
     "presentation": {
       "showReuseMessage": true,
      }
  },
  {
     "label": "copyARMheaders",
     "type": "shell",
     "command": "mkdir ${workspaceFolder}/include/;
        scp -r  ${config:sshUser}@${config:sshEndpoint}:
           /usr/include
            ${workspaceFolder}/include/ ",
     "problemMatcher": [],
     "presentation": {
       "showReuseMessage": true,
       "clear": true
      }
   },
 ],    
}

All of the files can be downloaded from iopress.info.

Raspberry Pi And The IoT In C Second Edition

By Harry Fairhead

Buy from Amazon.

Contents

1. Why Pi For IoT?
2. Getting Started
3. Getting Started With The GPIO
4. Simple Output
5. Some Electronics
6. Simple Input
7. GPIO The Linux Way
      Extract 1:The Linux GPIO Driver 
8. Advanced Input – Events, Threads, Interrupts
      Extract 1: Events & Interrupts 
9. Pulse Width Modulation - Servos And More
      Extract 1:Basic Pulse Width Modulation 
10. Using The I2C Bus
11. The DHT22 Sensor Implementing A Custom Protocol
12. Exploring - 1‑Wire Bus Basics ***NEW!
13. Using iButtons
14. DS18B20 Temperature Sensor
      Extract 1: The DS18B20 Temperature Sensor 
15. The Multidrop 1‑Wire Bus
16. The Serial Port
      Extract 1: 1-wire Via Serial 
17. Getting Started With The SPI Bus
18. A to D With The SPI Bus
19. Connecting With The Web - Sockets
20. Memory-Mapped GPIO
21. Almost Real-Time Linux
22. Appendix I GPIO Sysfs Interface
23. Appendix II Using VS Code For Remote C Development

 <ASIN:1871962633>

<ASIN:B08KLNT2JC>

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