Debug management

AN4325

18/27

DocID024966 Rev 1

4

Debug management

4.1

Introduction

The host/target interface is the hardware equipment that connects the host to the application

board. This interface is made of three components: a hardware debug tool, an SWD

connector and a cable connecting the host to the debug tool.

Figure 6 shows the connection of the host to the evaluation board (STM320518_EVAL).

The STM320518_EVAL evaluation board embeds the debug tools (ST-LINK).

Consequently, it can be directly connected to the PC through a USB cable.

Figure 6. Host-to-board connection

4.2

SWD port (serial wire debug)

standard CoreSight™ debug port with a 2-pin (clock + data) interface to the debug access

port.

4.3

Pinout and debug port pins

The STM32F030 MCU is offered in various packages with varying numbers of available

pins.

4.3.1

Serial wire debug (SWD) pin assignment

The same SWD pin assignment is available on all STM32F030 packages.

Table 3. SWD port pins

SWD pin name

SWD port

Pin assignment

Type

Debug assignment

SWDIO

I/O

Serial wire data input/output

PA13

SWCLK

I

Serial wire clock

PA14