ST-LINK V2 Documentation

Component Name

ST-LINK V2

Overview

The ST-LINK V2 is a in-circuit debugger and programmer for STM32 and STM8 microcontrollers. It is a versatile tool that allows users to debug, program, and test their microcontroller-based projects with ease.

Functionality

The ST-LINK V2 provides the following functionalities
In-Circuit Debugging (ICD)	The ST-LINK V2 enables real-time debugging of microcontroller-based applications. It allows users to step through code, set breakpoints, and examine variable values, making it easier to identify and fix errors.

Programming

The ST-LINK V2 can program flash memory in STM32 and STM8 microcontrollers, allowing users to update their firmware or load new applications.

Voltage Measurement

The ST-LINK V2 can measure the voltage of the target device, helping users to identify power-related issues.

Communication

The ST-LINK V2 supports various communication protocols, including UART, SPI, I2C, and CAN, allowing users to interact with their microcontroller-based projects.

USB Interface

The ST-LINK V2 connects to a host computer via a standard USB interface, making it easy to use with a wide range of devices.

High-Speed Debugging

The ST-LINK V2 supports high-speed debugging, allowing users to debug their applications at speeds of up to 1.5 MHz.

Compact Design

The ST-LINK V2 is designed to be compact and lightweight, making it easy to integrate into a variety of applications.

Multi-Platform Support

The ST-LINK V2 is compatible with a wide range of operating systems, including Windows, macOS, and Linux.

LED Indicators

The ST-LINK V2 features LED indicators that provide visual feedback on the debugging and programming process.

Compatible with STM32 and STM8 Microcontrollers

The ST-LINK V2 is designed to work with a wide range of STM32 and STM8 microcontrollers, making it a versatile tool for a variety of applications.

Dimensions

40mm x 20mm x 10mm (1.57" x 0.79" x 0.39")

Weight

20g (0.71 oz)

Power Consumption

100mA (typical)

Operating Temperature

0C to 50C (32F to 122F)

Storage Temperature

-20C to 70C (-4F to 158F)

Software Support

The ST-LINK V2 is supported by a range of software tools, including
STM32CubeMX	A graphical software configuration tool that allows users to configure their STM32 microcontrollers.

Keil Vision

A popular integrated development environment (IDE) that provides a comprehensive set of tools for debugging, programming, and testing microcontroller-based applications.

IAR Embedded Workbench

A powerful IDE that provides a range of tools for developing, debugging, and testing microcontroller-based applications.

Conclusion

The ST-LINK V2 is a versatile and powerful tool that provides a range of features and functionalities for debugging, programming, and testing microcontroller-based applications. Its compact design, high-speed debugging capabilities, and multi-platform support make it an ideal choice for a wide range of applications, from hobbyist projects to industrial-grade designs.

Pin Configuration

ST-LINK V2 Documentation
The ST-LINK V2 is a popular In-Circuit Debugger and Programmer for STM32 microcontrollers. It provides an interface between the microcontroller and a computer, enabling debugging, programming, and testing of embedded systems. Here is a detailed explanation of the ST-LINK V2 pins:
Pinout:
The ST-LINK V2 has a 10-pin connector, with the following pinout:
Pin 1: VDD_TARGET
Function: Target voltage supply
Description: This pin provides the power supply to the target microcontroller. The voltage level is typically 3.3V or 5V, depending on the target device.
Pin 2: GND
Function: Ground
Description: This pin is connected to the ground of the target system and provides a return path for the signals.
Pin 3: SWCLK
Function: Serial Wire Clock
Description: This pin is used to clock the serial wire protocol, which is used for communication between the ST-LINK V2 and the target microcontroller.
Pin 4: SWDIO
Function: Serial Wire Data Input/Output
Description: This pin is used for bidirectional data transfer between the ST-LINK V2 and the target microcontroller. It is used to transfer commands, data, and status information.
Pin 5: NRST
Function: Reset
Description: This pin is used to reset the target microcontroller. When this pin is driven low, the target device is reset.
Pin 6: SWO
Function: Serial Wire Output
Description: This pin is used to output debug information from the target microcontroller, such as printf() output or trace data.
Pin 7: JTCK
Function: JTAG Clock
Description: This pin is used to clock the JTAG protocol, which is used for debugging and testing of the target microcontroller.
Pin 8: JTDO
Function: JTAG Data Output
Description: This pin is used for outputting data from the target microcontroller during JTAG debugging and testing.
Pin 9: JTMS
Function: JTAG Mode Select
Description: This pin is used to select the JTAG mode of operation. It is used to switch between different JTAG modes, such as boundary scan and debugging.
Pin 10: JTDI
Function: JTAG Data Input
Description: This pin is used for inputting data to the target microcontroller during JTAG debugging and testing.
Connection Structure:
When connecting the ST-LINK V2 to a target microcontroller, follow these steps:
1. Connect VDD_TARGET (Pin 1) to the target microcontroller's power supply (typically 3.3V or 5V).
2. Connect GND (Pin 2) to the target microcontroller's ground.
3. Connect SWCLK (Pin 3) to the target microcontroller's SWCLK pin.
4. Connect SWDIO (Pin 4) to the target microcontroller's SWDIO pin.
5. Connect NRST (Pin 5) to the target microcontroller's reset pin.
6. Connect SWO (Pin 6) to the target microcontroller's SWO pin (if available).
7. Connect JTCK (Pin 7) to the target microcontroller's JTCK pin (if JTAG is used).
8. Connect JTDO (Pin 8) to the target microcontroller's JTDO pin (if JTAG is used).
9. Connect JTMS (Pin 9) to the target microcontroller's JTMS pin (if JTAG is used).
10. Connect JTDI (Pin 10) to the target microcontroller's JTDI pin (if JTAG is used).
Note: The specific connections may vary depending on the target microcontroller and the development board being used. Always refer to the target device's datasheet and the ST-LINK V2 documentation for specific connection diagrams and guidelines.

Code Examples

ST-LINK V2 Documentation

Overview

The ST-LINK V2 is a compact, in-circuit debugger and programmer for STM32 microcontrollers. It provides a USB interface for connecting to a host computer and a JTAG/SWD interface for connecting to a target device. The ST-LINK V2 is a popular tool for developing, debugging, and programming STM32-based IoT projects.

Features

Supports JTAG and SWD protocols
 USB 2.0 full-speed interface
 Compatible with STM32 microcontrollers
 On-board 3 V or 5 V target voltage supply
 Supports Windows, Linux, and macOS operating systems
 Compact and affordable design

Code Examples

Example 1: Programming an STM32 Microcontroller using ST-LINK V2 and STM32CubeIDE

In this example, we will use the ST-LINK V2 to program an STM32F103C8T6 microcontroller with a simple "Hello World" program using STM32CubeIDE.

Hardware Requirements

ST-LINK V2
 STM32F103C8T6 microcontroller
 Breadboard and jumper wires

Software Requirements

STM32CubeIDE (version 1.6.0 or later)
 STM32CubeMX (version 5.6.0 or later)

Code
```c
#include "stm32f1xx_hal.h"

int main(void)
{
    HAL_Init();

uint8_t data[] = "Hello World!";
    USART_HandleTypeDef huart1;
    huart1.Instance = USART1;
    huart1.Init.BaudRate = 9600;
    huart1.Init.WordLength = USART_WORDLENGTH_8B;
    huart1.Init.StopBits = USART_STOPBITS_1;
    huart1.Init.Parity = USART_PARITY_NONE;
    huart1.Init.Mode = USART_MODE_TX;
    if (HAL_USART_Init(&huart1) != HAL_OK)
    {
        Error_Handler();
    }

while (1)
    {
        HAL_USART_Transmit(&huart1, data, sizeof(data), 100);
        HAL_Delay(1000);
    }
}
```

Steps to Program the Microcontroller

1. Connect the ST-LINK V2 to the STM32F103C8T6 microcontroller.
2. Open STM32CubeIDE and create a new project for the STM32F103C8T6 microcontroller.
3. Write the code above and compile it.
4. Click on the "Debug" button to upload the code to the microcontroller using the ST-LINK V2.
5. The microcontroller will start sending the "Hello World!" message to the serial terminal.

Example 2: Debugging an STM32 Microcontroller using ST-LINK V2 and OpenOCD

In this example, we will use the ST-LINK V2 to debug an STM32F411RE microcontroller using OpenOCD.

Hardware Requirements

ST-LINK V2
 STM32F411RE microcontroller
 Breadboard and jumper wires

Software Requirements

OpenOCD (version 0.10.0 or later)
 GDB (version 7.12 or later)

Code
```c
#include "stm32f4xx_hal.h"

int main(void)
{
    HAL_Init();

uint32_t i = 0;
    while (1)
    {
        i++;
        HAL_Delay(1000);
    }
}
```

Steps to Debug the Microcontroller

1. Connect the ST-LINK V2 to the STM32F411RE microcontroller.
2. Open a terminal and navigate to the directory where the OpenOCD configuration file is located.
3. Run the following command to start the OpenOCD server: `openocd -f interface/stlink-v2.cfg -f target/stm32f4x.cfg`
4. In another terminal, run the following command to connect to the OpenOCD server using GDB: `gdb -p 3333`
5. Use GDB commands to set breakpoints, step through the code, and inspect variables.

These examples demonstrate how to use the ST-LINK V2 to program and debug STM32 microcontrollers in various contexts. The ST-LINK V2 is a versatile tool that can be used in a wide range of IoT development projects.

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