[SOLVED] STM32F4 Series and expand it

What are ARM tools
What is Keil
What are
Installing Keil Lite

Copyright By Assignmentchef assignmentchef

Create a new project using Keil
Stepping through a simple assembly program Understanding an assembly program

What isDK-ARM?
Keil is a Cortex-M Development platform There are many other platforms
MDK-ARM stands for Microcontroller Development Kit for ARM
Keils latest version is 5: www2.keil.com/mdk5
There are many components toDK-ARM uVision Integrated Development Environment (IDE)
Compilation tools (C/C++)
Assembler
Link unities (used to program the physical device) Simulator (when no hardware is available)
Aside from Keil there are many other open source and commercial tools: https://en.wikipedia.org/wiki/List_of_ARM_Cortex-M_development_tools

What isDK-ARM?

DK-ARM Editions See http://www.keil.com/mdk5/selector
MDK-Professional contains all features of MDK-Plus. In addition, it supports IPv4/IPv6 dual-stack networking, IoT connectivity, and a USB Host stack. Once available, MDK-Professional includes ARMv8-M architecture support and a license for DS-MDK.
MDK-Plus contains middleware libraries for IPv4 networking, USB Device, File System, and Graphics. It supports ARM Cortex-M, selected ARM Cortex-R, ARM7, and ARM9 processor based microcontrollers.
MDK-Cortex-M supports Cortex-M processor-based microcontrollers.
MDK-Lite is code size restricted to 32 KByte and intended for product evaluation, small projects, and the educational market.

Compilation Flow in Keil

Cortex Microcontroller Software Interface Standard (CMSIS)
CMSIS provides the interface between the microcontroller peripherals and the MDK Middleware
For our projects we need to have CMSIS CORE and DEVICES Startup files added to our code

Installing Keil-1
visit www2.keil.com/mdk5/
Download MDK-Lite
After the download has finished, double click the .exe to install the program.
Once installed, click finish
The pack installer will load, and it takes some time for it to find all the
new packages available for install.
Allow the pack installer to finish searching (shown by the action bar at the bottom of the screen)

Installing Keil 2
On the left side of the window under Devices, click to expand STMicroelectronics.
Find STM32F4 Series and expand it
Double click on STM32F401RE and it should add it to the packs list on the right side.
Click all the buttons that say Install or Update to get all the features/packages that Keil offers.

Open Keil uVision 5 from your Windows
Make sure all projects are closed:
ProjectCloseProject
Click on Projectnew uVision Project [1]
In the window click on [1]
Type the name of the project: ASM_NewProject [2]
Go to the new folder that you just created [3]

Start A-2
The Select Device window pops up
In the search type: STM32F401RETx
Click on the device (STM32F401RETx) that showed up and then click OK

Start A-3
At this point the Manage Run window pops up
CHECK CMSIS CORE and DEVICESTARTUP boxes note that the color changes
Then click OK

Start A-4
At tis point your Project window should show the CMSIS and DEVICE these are the CMSIS system initialization files and startup files in order for the RUN TIME to operate [1]
Click on the OPTIONS FOR TARGET [2]
Click on DEBUG tab [3]
CHECK the SIMULATOR [4]
Click on OK
In the PROJECT window click on Source Group 1 and select ADD NEW ITEM.
In the new window select

Start A-5
In the PROJECT window click on Source Group 1 and select ADD NEW ITEM.
In the new window select ASM files
Then type the name of the ASM file: ASM_NewProject.s
Click on ADD

Start A-6
In the project window click on ASM_NewProject.s under the Source Group 1 folder
Open the file
Type in the following code
Save the file
Press F7 and make sure there are no
errors (as shown below)
Click on the debug button shown above
Make sure there are no errors and step through the code as you click on the STEP IN button shown above
*** Using Compiler V5.06 update 5 (build 528), folder: C:Keil_v5ARMARMCCBinBuild target Target 1assembling change_register.slinkingProgram Size: Code=188 RO-data=404 RW-data=0 ZI-data=1536 .ObjectsNewProject.axf 0 Error(s), 0 Warning(s).Build Time Elapsed: 00:00:00

Start A-7
Setup your project windows are shown below
To do so, click on VIEW and select the appropriate window
Assembly & Startup)
Disassembler

Lets Examine The Code
What are the values of the registers after you step through the entire code?
What is the value of P?
What happens if we change #P to P and remove #?
In the Disassembler note how the codes are displayed. What is the starting memory location for the assembly code?
What is the OPCODE for MOV instruction?
What is the OPCODE for ADD instruction?
How large (in terms of bits) is register R0?
What exactly the following command achieves? ADD r2,r0,r1

Computers as Components 3e 2012 Marilyn Wolf

Example 1: CPRS STATUS
Computers as Components 3e 2012 Marilyn Wolf

Example 2: CPRS STATUS
Computers as Components 3e 2012 Marilyn Wolf

Example 1: Arithmetic Instructions

Example 2: Arithmetic Instructions
Computers as Components 3e 2012 Marilyn Wolf

Example: Logical Instructions
Computers as Components 3e 2012 Marilyn Wolf

Example: Comparison Instructions
Computers as Components 3e 2012 Marilyn Wolf

Example: ADDS VS CMN Instructions
ADDS is the same as CMN but it affects the content of R0
Remember: ADD will affects the content of R0 but not the CPRS
Computers as Components 3e 2012 Marilyn Wolf

Example: SUBS VS CMP Instructions
SUBS is the same as CMP but it affects the content of R0
Remember: SUB will affects the content of R0 but not the CPRS
Computers as Components 3e 2012 Marilyn Wolf

Example: EORS VS TEQ Instructions
EORS is the same as TEQ but it affects the content of R0
Computers as Components 3e 2012 Marilyn Wolf

Example: ANDS VS TST Instructions
ANDS is the same as TST but it affects the content of R0
Computers as Components 3e 2012 Marilyn Wolf

Load and Store Instructions
Computers as Components 3e 2012 Marilyn Wolf

Load and Store Instructions
Moving Block1 to Block2 using LDRB (Byte at a time) 2012 Marilyn Wolf
Computers as Components 3e

Load and Store Instructions
Moving Block1 to Block2 using LDR (word at a time)
2012 Marilyn Wolf
Computers as Components 3e

Multiplication
Computers as Components 3e 2012 Marilyn Wolf

Multiplication Example.
Computers as Components 3e 2012 Marilyn Wolf

Multiplication Example.
Computers as Components 3e 2012 Marilyn Wolf

CS: assignmentchef QQ: 1823890830 Email: [email protected]