User manual ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 Introduction The ST-LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32 microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces, facilitate communication with any STM8 or STM32
UM1075 User manual
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32
Introduction
The ST-LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32 microcontroller families. The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces, facilitate communication with any STM8 or STM32 microcontroller located on an application board.
In addition to providing the same functionalities as the ST-LINK/V2, the ST-LINK/V2-ISOL features digital isolation between the PC and the target application board. It also withstands voltages of up to 2500 VRMS.
The USB full-speed interface allows communication with a PC and: STM8 devices via ST Visual Develop (STVD) or ST Visual Program (STVP) software
(which are available from STMicroelectronics) STM32 devices via Atollic, IAR, Keil, and TASKING integrated development
environments.
Table 1. Applicable tools
Type
Part number
Development tools
ST-LINK/V2
Order Code ST-LINK/V2 ST-LINK/V2-ISOL
Description
In-circuit debugger/programmer In-circuit debugger/programmer
with digital isolation
Figure 1. ST-LINK/V2 and ST-LINK/V2-ISOL
ST-LINK/V2
ST-LINK/V2-ISOL
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Contents
Contents
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1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Hardware configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Connection with STM8 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.1 Standard ERNI connection with SWIM flat ribbon . . . . . . . . . . . . . . . . . . 9
3.1.2 Low-cost SWIM connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.3 SWIM signals and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Connection with STM32 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 ST-LINK/V2 status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4
Software configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 ST-Link/V2 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 STM8 application development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 STM32 application development and Flash programming . . . . . . . . . . . . 15
5
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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List of tables
List of tables
Table 1. Table 2. Table 3. Table 4. Table 5. Table 6.
Applicable tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SWIM flat ribbon connections for ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 SWIM low-cost cable connections for ST-LINK/V2-ISOL . . . . . . . . . . . . . . . . . . . . . . . . . . 11 JTAG/SWD cable connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 How third party toolchains support ST-LINK/V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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List of figures
List of figures
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Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12.
ST-LINK/V2 and ST-LINK/V2-ISOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ST-LINK/V2 product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ST-LINK/V2-ISOL product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Connectors of the ST-LINK/V2 and ST-LINK/V2-ISOL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ERNI connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Key detail on connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Low-cost connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Target SWIM connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 JTAG and SWD connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 JTAG debugging flat ribbon layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 SWIM ST-LINK/V2 standard ERNI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SWIM ST-LINK/V2 low-cost cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
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Features
Features
5 V power supplied by a USB connector USB 2.0 full speed compatible interface USB standard A to mini B cable SWIM specific features
1.65 V to 5.5 V application voltage supported on SWIM interface SWIM low-speed and high-speed modes supported SWIM programming speed rate: 9.7 Kbytes/s in low speed and 12.8 Kbytes/s in
high speed SWIM cable for connection to the application via an ERNI standard vertical (ref:
284697 or 214017) or horizontal (ref: 214012) connector SWIM cable for connection to the application via a pin header or a 2.54 mm pitch
connector JTAG/serial wire debugging (SWD) specific features
1.65 V to 3.6 V application voltage supported on the JTAG/SWD interface and 5 V tolerant inputs
JTAG cable for connection to a standard JTAG 20-pin pitch 2.54 mm connector Supports JTAG communication Supports serial wire debug (SWD) and serial wire viewer (SWV) communication Direct firmware update feature supported (DFU) Status LED which blinks during communication with the PC 2500 VRMS high isolation voltage (ST-LINK/V2-ISOL only) Operating temperature 0 to 50 °C
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Product contents
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Product contents
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Figures ST-LINK/V2 product contents show the various cables delivered within the product. They include (from left to right in Figure 2 and Figure 3): USB standard A to mini B cable (A) ST-LINK/V2 debugging and programming (B) SWIM low-cost connector (C) SWIM flat ribbon with a standard ERNI connector at one end (D) JTAG or SWD and SWV flat ribbon with a 20-pin connector (E)
Figure 2. ST-LINK/V2 product contents
B
D C
E
A
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Figure 3. ST-LINK/V2-ISOL product contents
C D
A B
Product contents
E
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Hardware configuration
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Hardware configuration
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The ST-LINK/V2 is designed around the STM32F103C8 device which incorporates the highperformance ARM®, CortexTM-M3 core. It is available in a TQFP48 package. As shown in Figure 4, the ST-LINK/V2 provides two connectors: an STM32 connector for the JTAG/SWD and SWV interface an STM8 connector for the SWIM interface The ST-LINK/V2-ISOL provides one connector for the STM8 SWIM, STM32 JTAG/SWD and SWV interfaces.
Figure 4. Connectors of the ST-LINK/V2 and ST-LINK/V2-ISOL
A B
D
C D
3.1
1. A = STM32 JTAG and SWD target connector 2. B = STM8 SWIM target connector 3. C = STM8 SWIM, STM32 JTAG and SWD target connector 4. D = Communication activity LED
Connection with STM8 applications
For STM8 developments, the ST-LINK/V2 can be connected to the target board by two different cables, depending on the connector available on the application board. These cables are: SWIM flat ribbon with a standard ERNI connector at one end SWIM cable with two 4-pin, 2.54 mm connector or SWIM separate-wires cable
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Hardware configuration
3.1.1
Standard ERNI connection with SWIM flat ribbon
Figure 5 shows how to connect the ST-LINK/V2 if a standard ERNI 4-pin SWIM connector is present on the application board.
Figure 5. ERNI connection
A B
A
B C
C
1. A = Target application board with ERNI connector 2. B = Wire cable with ERNI connector at one end 3. C = STM8 SWIM target connector 4. See Figure 11: SWIM ST-LINK/V2 standard ERNI cable.
Figure 6 shows that pin 16 is missing on the ST-LINK/V2-ISOL target connector. This missing pin is used as a safety key on the cable connector to guarantee connection of the SWIM cable in the correct position on the target connector even pins, used for both SWIM and JTAG cables.
Figure 6. Key detail on connectors
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3.1.2
Low-cost SWIM connection
Figure 7 shows how to connect the ST-LINK/V2 if a 4-pin, 2.54 mm, low-cost SWIM connector is present on the application board.
Figure 7. Low-cost connection
A B
C
A B C
1. A = Target application board with 4-pin, 2.54 mm, low-cost connector 2. B = Wire cable with a 4-pin connector or separate-wires cable 3. C = STM8 SWIM target connector 4. See Figure 12: SWIM ST-LINK/V2 low-cost cable
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Hardware configuration
3.1.3
SWIM signals and connections
Table 2 summarizes the signal names, functions, and target connection signals using the wire cable with a 4-pin connector.
Table 2. SWIM flat ribbon connections for ST-LINK/V2
Pin no.
Name
Function
Target connection
1
VDD
Target VCC(1)
MCU VCC
2
DATA
SWIM
MCU SWIM pin
3
GND
GROUND
GND
4
RESET
RESET
MCU RESET pin
1. The power supply from the application board is connected to the ST-LINK/V2 debugging and programming board to ensure signal compatibility between both boards.
Figure 8. Target SWIM connector
Table 3 summarizes the signal names, functions, and target connection signals using the separate-wires cable.
As the SWIM separate-wires cable has independent connectors for all pins on one side, it is possible to connect the ST-LINK/V2-ISOL to an application board without a standard SWIM connector. On this flat ribbon, all signals are referenced by a specific color and a label to ease the connection on target.
Table 3. SWIM low-cost cable connections for ST-LINK/V2-ISOL
Color
Cable pin name
Function
Target connection
Red
TVCC
Target VCC(1)
MCU VCC
Green Blue Yellow
UART-RX UART-TX BOOT0
Unused
Reserved (2) (not connected on the target board)
Orange
SWIM
SWIM
MCU SWIM pin
Black
GND
GROUND
GND
White
SWIM-RST
RESET
MCU RESET pin
1. The power supply from the application board is connected to the ST-LINK/V2 debugging and programming board to ensure signal compatibility between both boards.
2. BOOT0, UART-TX and UART-RX are reserved for future developments.
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TVCC, SWIM, GND and SWIM-RST can be connected to a low-cost 2.54 mm pitch connector or to pin headers available on the target board.
3.2
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Connection with STM32 applications
For STM32 developments, the ST-LINK/V2 needs to be connected to the application using the standard 20-pin JTAG flat ribbon provided.
Table 4 summarizes the signals names, functions, and target connection signals of the standard 20-pin JTAG flat ribbon.
Table 4. JTAG/SWD cable connections
Pin no.
ST-LINK/V2 connector (CN3)
ST-LINK/V2 function
Target connection (JTAG)
Target connection (SWD)
1 VAPP
2
3 TRST
4 GND
5 TDI
6 GND
Target VCC
JTAG TRST GND JTAG TDO GND
MCU VDD(1)
JNTRST GND(3) JTDI GND(3)
MCU VDD(1)
GND(2) GND(3) GND(2) GND(3)
7 TMS_SWDIO 8 GND
JTAG TMS, SW IO GND
JTMS GND(3)
SWDIO GND(3)
9 TCK_SWCLK 10 GND
JTAG TCK, SW CLK JTCK
GND
GND(3)
SWCLK GND(3)
11 NC 12 GND 13 TDO_SWO 14 GND
Not connected GND JTAG TDI, SWO GND
Not connected GND(3) JTDO GND(3)
Not connected GND(3) TRACESWO(4) GND(3)
15 NRST 16 GND
NRST GND
NRST GND(3)
NRST GND(3)
17 NC 18 GND 19 VDD 20 GND
Not connected GND VDD (3.3V)(5) GND
Not connected GND(3) Not connected GND(3)
Not connected GND(3) Not connected GND(3)
1. The power supply from the application board is connected to the ST-LINK/V2 debugging and programming board to ensure signal compatibility between both boards.
2. Connect to GND for noise reduction on the ribbon.
3. At least one of this pin must be connected to the ground for correct behavior (connecting all of them is recommended).
4. Optional: for Serial Wire Viewer (SWV) trace.
5. Available on ST-LINK/V2 only and not connected on ST-LINK/V2/OPTO.
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Hardware configuration
Figure 9 shows how to connect the ST-LINK/V2 to a target using the JTAG cable. Figure 9. JTAG and SWD connection
A
B
A
B
C C
1. A = Target application board with JTAG connector 2. B = JTAG/SWD 20-wire flat cable 3. C= STM32 JTAG and SWD target connector
The reference of the connector needed on the target application board is: 2x10C header wrapping 2x40C H3/9.5 (pitch 2.54) - HED20 SCOTT PHSD80.
Figure 10. JTAG debugging flat ribbon layout
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2 Viewed from above PCB
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Note:
For low cost applications or when the standard 20 pins pitch 2.54mm connector footprint is too big, it is possible to implement the Tag-Connect solution to save cost and space on the application board. The Tag-Connect adapter and cable provide a simple reliable means of connecting ST-LINK/V2 or ST-LINK/V2-ISOL to your PCB without requiring a mating
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component on application PCB. For more details on this solution and application PCB footprint information, please visit www.Tag-Connect.com.
The references of components compatible with JTAG and SWD interfaces are: a) TC2050-ARM2010 adapter (20pins to 10pins interface board) b) TC2050-IDC or TC2050-IDC-NL (No Legs) (10pins cable) c) TC2050-CLIP retaining clip for use with TC2050-IDC-NL (optional)
3.3
ST-LINK/V2 status LEDs
The LED labeled `COM' on top of the ST-LINK/V2 shows the ST-LINK/V2 status (whatever the connection type).
When the: LED is blinking RED: the first USB enumeration with the PC is taking place. LED is RED: communication between the PC and ST-LINK/V2 is established (end of
enumeration). LED is blinking GREEN/RED: data are being exchanged between the target and the
PC. LED is GREEN: the last communication has been successful. LED is ORANGE: ST-LINK/V2 communication with the target has failed.
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Software configuration
Software configuration
4.1
ST-Link/V2 firmware upgrade
The ST-Link/V2 embeds a firmware upgrade mechanism for in-situ upgrade through the USB port. As the firmware might evolve during the whole life of the ST-Link/V2 product (new functionality, bug fixes, support for new microcontroller families ...), it is recommended to visit www.st.com/stlinkv2 periodically in order to stay up-to-date with the latest firmware version.
4.2
STM8 application development
Please refer to ST toolset Pack24 with Patch 1 or more recent, which includes ST Visual Develop (STVD) and ST Visual Programmer (STVP).
4.3
STM32 application development and Flash programming
Third party toolchains, Atollic TrueSTUDIO, IAR EWARM, Keil MDK-ARM, and TASKING VX-toolset support ST-LINK/V2 according to the versions given inTable 5 or the most recent version available.
Table 5. How third party toolchains support ST-LINK/V2
Third party
Toolchain
Atollic
TrueSTUDIO
2.1
IAR
EWARM
6.20
Keil
MDK-ARM
4.20
TASKING
VX-toolset for ARM Cortex-M 4.0.1
Version
The ST-LINK/V2 requires a dedicated USB driver. If the toolset installed it automatically, file stlink_winusb.inf is installed in <WINDIR>/inf (where <WINDIR> is typically C:/Windows).
If the toolset setup did not install it automatically, the driver can be found on www.st.com: 1. Connect to www.st.com. 2. In the search tab, part number field, look for ST-Link/V2. 3. Click on the Generic Part Number column's hyperlink to ST-Link/V2. 4. In the Design support tab, SW drivers section, click on the icon to download st-
link_v2_usbdriver.zip. 5. Unzip and run ST-Link_V2_USBdriver.exe.
For more information on third party tools, please visit: www.atollic.com www.iar.com www.keil.com www.tasking.com
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Schematics
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Schematics
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Figure 11. SWIM ST-LINK/V2 standard ERNI cable
Target board (horizontal mount)
ST-LINK/V2 board
Note: connector located on the edge of the board
1 2 3 4
PCB Footprint
Target board (vertical mount)
214012
ERNI 1
CN3 1
224394
Cable lenght 100mm
Low cost femal
connector 02 201 3047
Note: Black wire location
ST-LINK/V2 male
connector 02 20 227 2041
PIN 1 - VDD
PIN 2 - DATA USB
PIN 3 - GND PIN 4 - RESET
CN4
1 2 3 4
PCB Footprint
214017
1. Legend for pin descriptions: VDD = Target voltage sense DATA = SWIM DATA line between target and debug tool GND = Ground voltage RESET = Target system reset
PCB
USB
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Target board
Schematics
ST-LINK/V2 board
PCB
Application male connector
02 20 227 2041
Low cost femal
connector 02 201 3047
Cable lenght 100 mm
Low cost femal
connector 02 201 3047
1 1
PIn 1 - VDD PIn 2 - DATA PIn 3 - GND PIn 4 - RESET
1 1
ST-LINK/V2 male
connector 02 20 227 2041
CN3
PIn 1 - VDD PIn 2 - DATA PIn 3 - GND
USB
PIn 4 - RESET
CN4
PCB
1. Legend for pin descriptions: VDD = Target voltage sense DATA = SWIM DATA line between target and debug tool GND = Ground voltage RESET = Target system reset
PCB
USB
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Revision history
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Revision history
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Table 6. Document revision history
Date
Revision
Changes
22-Apr-2011
1
Initial release.
03-Jun-2011
Table 2: SWIM flat ribbon connections for ST-LINK/V2: added footnote 1 to the function "Target VCC".
2
Table 4: JTAG/SWD cable connections: added footnote to the function "Target VCC".
Table 5: How third party toolchains support ST-LINK/V2: updated the "Versions" of IAR and Keil.
19-Aug-2011
3
Added USB driver details to Section 4.3.
11-May-2012
4
Added SWD and SWV to JTAG connection features. Modified Table 4: JTAG/SWD cable connections.
13-Sep-2012
Added ST-LINK/V2-ISOL order code. Updated Section 4.1: STM8 application development on page 15
5
Added Note 5. in Table 4.
Added Note "For low cost applications..." before Section 3.3: STLINK/V2 status LEDs on page 14
18-Oct-2012
6
Added Section 4.1: ST-Link/V2 firmware upgrade on page 15.
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