Arduino for STM32

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);
  Serial.begin(9600);
  Serial.println("Hello World");
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);                       // wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
  Serial.println("2 secs");
  
}

Sketch uses 24372 bytes (4%) of program storage space. Maximum is 524288 bytes.
Global variables use 3684 bytes (2%) of dynamic memory, leaving 127388 bytes for local variables. Maximum is 131072 bytes.
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STM32CubeProgrammer v2.6.0
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ST-LINK SN : 066AFF303430484257142040
ST-LINK FW : V2J37M26
Board : STM32F4DISCOVERY
Voltage : 2.91V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x413
Revision ID : Rev Y
Device name : STM32F405xx/F407xx/F415xx/F417xx
Flash size : 1 MBytes (default)
Device type : MCU
Device CPU : Cortex-M4



Memory Programming ...
Opening and parsing file: Blink_Demo.ino.bin
File : Blink_Demo.ino.bin
Size : 24800 Bytes
Address : 0x08000000


Erasing memory corresponding to segment 0:
Erasing internal memory sectors [0 1]
Download in Progress:


File download complete
Time elapsed during download operation: 00:00:00.864

RUNNING Program ...
Address: : 0x8000000
Application is running
Start operation achieved successfully

U(S)ART support: "Enabled (generic Serial)"
USB support : CDC (generic Serial supersede U(S)ART"
USB speed : "Low/Full Speed"
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Upload method : "STM32CubeProgrammer (SWD)"
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Programmer : No programmers available for this board
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