SW4STM32C datasheet(58/99 Pages) STMICROELECTRONICS

Part #	SW4STM32C

Description	STM32 microcontroller debug toolbox

PDF	99 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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58 / 99 page

Printf debugging

AN4989

58/99

DocID030181 Rev 2

Printf debugging

Printf debugging is one of the most straight-forward and used solution in order to start

investigating a non-working system.

This chapter is a getting started guide to quickly setup a printf data path through

semihosting, USART or SWO, benefiting from facilities offered by STMicroelectronics

hardware kits and ecosystem tools.

7.1

STM32 Virtual-COM port driver

STM32 Virtual-COM Port Driver (VCP) is a feature supported by ST-LINKV2-B embedded in

most of recent hardware kits (refer to Section 2.1: Hardware development tools on page 9).

It is a RS232 emulation through ST-LINK USB connection.

On the PC side, this requires driver software package (STSW-STM32102) included in ST-

LINK driver (STSW-0009).

Once the target is connected, it is seen as a serial port on the PC. An example is presented

in Figure 39.

Figure 39. Virtual-COM port on Windows® PC

SW4STM32C Datasheet(PDF) 58 Page - STMicroelectronics