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MDKST-KD-40000: Descriptionmdk-arm flex license; CategoryModule/solution; File Size1MB，33 Pages; ManufacturerKeil ( ARM ); Environmental Compliance

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STMicroelectronics STM32:

Cortex™-M4 Lab

ARM

Keil

™

MDK Toolkit

featuring Serial Wire Viewer and ETM Trace

For the STM3240G-EVAL board

Version 0.72

Robert Boys

bob.boys@arm.com

Introduction:

For the ST STM3240G-EVAL Evaluation Board with STM32F407

The purpose of this lab is to introduce you to the STMicroelectronics Cortex™-M4 processor family using the ARM

Keil™

MDK toolkit featuring the IDE

μVision

. We will use the Serial Wire Viewer (SWV) and ETM trace on the STM3240G-

EVAL evaluation board from STMicroelectroncs. At the end of this tutorial, you will be able to confidently work with

STM32 processors and MDK. Keil offers a similar board: MCBSTM32F400™. Examples are provided for both boards.

Keil MDK comes in an evaluation version that limits code and data size to 32 Kbytes. Nearly all Keil examples will compile

within this 32K limit. The addition of a license number will turn it into the full, unrestricted version. Contact Keil sales for a

temporary full version license if you need to evaluate MDK with programs greater than 32K. MDK includes a full version of

Keil RTX

™

RTOS. No royalty payments are required. RTX source code is now included with all versions of Keil MDK

™

Why Use Keil MDK ?

MDK provides these features particularly suited for Cortex-M3 and

Cortex-M4 users:

µVision IDE with Integrated Debugger, Flash programmer

and the ARM

Compiler toolchain. MDK is a turn-key

product with included examples.

2. Serial Wire Viewer and ETM trace capability is included.

A full feature Keil RTOS called RTX is included with

MDK with source code.

3. RTX Kernel Awareness window is updated in real-time.

Kernel Awareness exists for Keil RTX, CMX, Quadros

and Micrium. All RTOSs can compile with MDK.

Awareness can be provided by the supplier.

4. Choice of adapters: ULINK2

™

, ULINK-ME

™

, ULINKpro

™

or Segger J-Link (version 6 or later). ST-Link is

supported but it has no SWV or ETM support at this time. SWV for ST-Link is planned for 4Q11.

5. Keil Technical Support is included for one year and is renewable. This helps you get your project completed faster.

This document details these features:

Serial Wire Viewer (SWV) with ULINK2, ULINK-ME and ULINKpro. ETM Trace using ULINKpro.

Real-time Read and Write to memory locations for Watch, Memory and RTX Tasks windows. These are non-

intrusive to your program. No CPU cycles are stolen. No instrumentation code is added to your source files.

Six Hardware Breakpoints (can be set/unset on-the-fly) and four Watchpoints (also called Access Breaks).

RTX Viewer: a kernel awareness program for the Keil RTX RTOS that updates while the program is running.

Serial Wire Viewer (SWV):

Serial Wire Viewer

(SWV) displays PC Samples, Exceptions (including interrupts), data reads and writes, ITM (printf),

CPU counters and a timestamp. This information comes from the ARM CoreSight™ debug module integrated into the

Cortex-M4. SWV is output on the Serial Wire Output (SWO) pin found on the JTAG/SWD adapter connector.

SWV does not steal any CPU cycles and is completely non-intrusive except for ITM Debug printf Viewer. SWV is provided

by the Keil ULINK2, ULINK-ME, ULINKpro and the Segger J-Link. Best results are with a ULINK family adapter. The

STMicroelectronics ST-Link adapter does not support SWV at this time.

Embedded Trace Macrocell (ETM):

ETM adds all the program counter values to the data provided by SWV. This allows advanced debugging features including

timing of areas of code (Execution Profiling), Code Coverage, Performance Analysis and program flow debugging and

analysis. ETM requires a special debugger adapter such as the ULINKpro or Segger J-Trace. This document uses a

ULINKpro for ETM. A ULINK2 or ULINK-ME is used for the Serial Wire Viewer exercises in this lab.

STMicroelectronics Cortex-M3 Lab with STM3240G-EVAL board

www.keil.com

STM32 Evaluation Boards:

Keil makes six STM32 evaluation boards plus several with STR7 and STR9 processors. Examples are provided.

Keil part number

MCBSTM32™

Processor

STM32F103VB

Characteristics Debug Connectors

monochrome LCD

color LCD

color touch LCD

MCBSTM32F400™

JTAG/SWD

Cortex Debug and ETM

ST board equivalent

STM32F10X-128K-EVAL (color LCD)

STM3210E-EVAL

STM3210C-EVAL

MCBSTM32E™

replaced by EXL

STM32F103ZE

MCBSTM32EXL™

MCBSTM32C™

MCBSTM32F200™

STM32F103ZG

STM32F107VC

Cortex-M4:

Keil MDK provides example projects for these STMicroelectronics boards:

CQ-STARM

STM32100E-EVAL

EK-STM32F

Cortex-M4:

STM32-Discovery

STM3240G-EVAL

STM32F10X-EVAL

STM32L152-EVAL

STM32F4-Discovery (MDK has examples for this board)

Five Steps to Get Connected and Configured:

Physically connect a ULINK to the STM3240G or other target board. Power both of these appropriately.

Configure µVision to use a ULINK2, ULINK-ME or ULINKpro to communicate with the JTAG or SWD port.

Configure the Flash programmer inside µVision to program the STM32 internal flash memory.

If desired, configure the Serial Wire Viewer. Add the STM32F4xx_SWO.ini initialization file (see below).

If desired, configure the ETM trace with the ULINKpro. Add the STM32F4xx_TP.ini initialization file (see below).

STM32 processors need a special .ini file that configures the CoreSight Serial Wire Viewer and ETM trace. If you do not

intend to use SWV or ETM you do not need this file. It is entered in the Options for Target window under the Debug tab. It

can be configured for either SWO or 4 bit Trace Port operation. Instructions are provided on Page 30.

Software Installation:

This document was written for Keil MDK 4.22a or later which contains µVision 4. The evaluation copy of MDK is available

free on the Keil website. Do not confuse µVision4 with MDK 4.0. The number “4” is a coincidence.

To obtain a copy of MDK go to

www.keil.com/arm

and select the Download icon:

You can use the evaluation version of MDK and a ULINK2, ULINK-ME, ULINKpro or J-Link for this lab. You must make

certain adjustments for non-ULINK adapters such as the ST-Link and not all features shown here will be available.

The addition of a license number converts the evaluation into a full, unrestricted copy of MDK.

The ULINKpro adds Cortex-M3 ETM trace support. It also adds faster programming time and better trace display. Most

STMicroelectronics Cortex-M3/M4 parts are equipped with ETM. All have SWV.

JTAG and SWD Definitions:

It is useful to have an understanding of these terms:

JTAG:

JTAG provides access to the CoreSight debugging module located on the STM32 processor. It uses 4 to 5 pins.

SWD:

Serial Wire Debug is a two pin alternative to JTAG and has about the same capabilities except no Boundary Scan.

SWD is referenced as SW in the µVision Cortex-M Target Driver Setup. See page 5, middle picture.

SWV:

Serial Wire Viewer: A trace capability providing display of reads, writes, exceptions, PC Samples and printf.

SWO:

Serial Wire Output: SWV frames usually come out this one pin output. It shares the JTAG signal TDIO.

Trace Port:

A 4 bit port that ULINKpro uses to output ETM frames and optionally SWV (rather than the SWO pin).

ETM:

Embedded Trace Macrocell: Provides all the program counter values. Only the ULINKpro works with ETM.

Example Programs:

See

www.keil.com/st

for additional information.

Example projects for STMicroelectronics boards are found in C:\Keil\ARM\boards\ST and in C:\Keil\ARM\boards\Keil for

Keil boards. Most example projects are pre-configured to use a ULINK2 or a ULINK-ME. Serial Wire Viewer is not

usually configured: you can do this yourself easily. Projects that contain a Ulp in their name are configured to use a

ULINKpro and SWV and ETM are pre-configured. It is easy to select different debug adapters in µVision.

Most example projects will compile within the 32 K code and data limit of the evaluation version of MDK. An exception is

LCD_Blinky. A compiled executable called Blinky.axf file is provided to allow you to run, evaluate and debug these

programs. If you attempt to compile these projects, the Blinky.axf file will be erased. It is a good idea to back this file up.

STMicroelectronics Cortex-M3 Lab with STM3240G-EVAL board

www.keil.com

MDKST-KD-40000 Related Products

	MDKST-KD-40000	MDK-PRO	MDKCM-KD-40000	MDKPR-KD-40000
Description	mdk-arm flex license	mdk-arm pro with RL-arm	mdk-arm cortex M flex license	mdk-pro flex license

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