Please update the Raspberry compiler toolchain

[github-rkaiser]

Please update the compiler toolchains for the boards. For Raspberry gcc version 14 is available for some time.

For Raspberry Pico gcc is currently on Version 7.2.1,
For Raspberry Pico W beta gcc is currently on Version 10.3.0,

Thanks
Richard

[urish]

Updated the community Arduino core to the latest version, 4.5.2.

You can see an example here: https://wokwi.com/projects/428871464465633281

[github-rkaiser]

Hi Urish,

thanks for your blog post.
However, I still get the gcc version 7.2.1 when executing

#include <string>
#include <iostream>

void show_gcc_version()
{ 
  Serial1.println("Examples: Various ways to print the GCC Version ");
  Serial1.print("1. Serial.println GCC Version: ");
  Serial1.print(__GNUC__); Serial.print(".");
  Serial1.print(__GNUC_MINOR__); Serial.print(".");
  Serial1.println(__GNUC_PATCHLEVEL__);

  std::string vs = "std::string GCC Version: " +
    std::to_string(__GNUC__) +
    "." + std::to_string(__GNUC_MINOR__) +
    "." + std::to_string(__GNUC_PATCHLEVEL__);
  printf("%s\n", ("4. printf " + vs).c_str()); // printf in the C++ way
  Serial.println(("5. Serial.println " + vs).c_str());
  // 5. Serial.println accepts char* arguments, but not std::string 
                                                     // arguments 
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");  
  // Serial1.println("Core version: " + String(ARDUINO_PICO_VERSION_STR));
  // Serial1.println("SDK version: " + String(PICO_SDK_VERSION_STRING));
  show_gcc_version();
}

void loop() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(500);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500);
}

What I need is a current version of the gcc compiler, as I get it for ESP32 or STM32 projects.

Thanks
Richard

[urish]

Hi Richard,

The toolchain is not directly maintained by us - it's part of the Raspberry Pi Pico Arduino core. I updated my demo project to print the GCC version, in a similar fashion to your example code, and it says 14.2.0:

https://wokwi.com/projects/428871464465633281

Note that for the Pi Pico, you need to set the "env" attribute in diagram.json to "arduino-community" to build with the up to date core, as in the following example:

  "parts": [
    {
      "type": "wokwi-pi-pico",
      "id": "pico",
      "top": 0,
      "left": 0,
      "attrs": { "env": "arduino-community" }
    }
  ],

This is now the default for all new projects.