Cortex®-M23, M33: Armv8-M Architecture Training with Security Extension - Face-to-Face Training

Cortex®-M23, M33: Armv8-M Architecture Training with Security Extension - Face-to-Face Training

Inhalt

TrustZone for Armv8-M

• Secure state transitions
• Function calls from secure state to non-secure state
• Function returns from non-secure state
• Practical exercises: Developing and setting up mixed secure state/non-secure state projects for Cortex-M33

Cortex®-M (Armv8-M) Processor Architecture

• Register organization, special purpose register
• Operation modes (handler/thread, privileged/unprivileged)
• Main stack, process stack, stack limit register
• Cortex®-M pipeline concept
• Cortex®-M memory map, system control block
• Practical exercises with the new stack limit registers
• Differences to the Armv6-M and Armv7-M processor architecture

Cortex®-M33, M23, M7, M4, M3, M1, M0+, M0 Instruction Set

• Thumb-2 instruction set
• Data processing instructions
• Branch and control flow instructions, subroutines
• Branch table, if ... then conditional blocks
• Data access instructions
• Security instructions
• Assembler directives
• Practical exercises: Assembler routine development, assembler debugging, code optimization

Exception and Interrupt Handling

• Exception model
• Reset, NMI, faults, SysTick, debug, supervisor calls, external interrupts
• Tail chaining, late arriving, tail chaining with security transitions
• Nested vector interrupt controller (NVIC)
• Interrupt configuration and status
• Interrupt prioritization, priority grouping
• Security targeting
• Banked exceptions
• Secure faults
• Practical exercises with system tick, supervisor call and PendSV in the context of RTOS applications
• Practical exercises with fault handlers and output of status information

Memory Protection Unit MPU for Embedded Systems

• Armv6-M and Armv7-M MPU
• New Armv8-M MPU
• Practical exercises: MPU programming and dynamic reprogramming in the scheduler

Security Attribution Unit (SAU and IDAU)

• Overview: Security and implementation defined attribution unit
• Attribution attributes secure, non-secure, non-secure callable
• Practical exercise: Programming the security attribution unit

Embedded Core Debugging

• Core and system debugging
• JTAG debug port
• 2-pin single wire debug port
• Trace port interface unit
• Embedded trace macrocell
• Practical exercise: Debugging C code with the µVision debugger and print output to the debug console

Embedded Software Development

• Adjustment of library routines to hardware (retargeting)
• Placing code and data in memory (scatter loading)
• Linker description files
• Processor start-up, start-up file
• Practical exercise: Placing code and data at predefined addresses

Efficient C-Programming for Cortex Architectures

• Compiler optimization, compiler options
• Interface C - Assembler
• Programming guidelines for Cortex compilers
• Optimized utilization of local and global data
• Tools: Arm, IAR, GNU

Hardware-near C-Programming According to CMSIS

• Cortex Microcontroller Software Interface Standard (CMSIS)
• Software architecture for embedded systems
• Structured description of peripherals
• Access to peripherals in C
• C statements and their execution in Assembler
• CMSIS extensions for Armv8-M

Practical Exercises with Keil µVision in Assembler and C

• Armv6-M and Armv7-M programs are developed and tested on a Cortex-M based evaluation board
• Exercises for Armv8-M are performed using a LPCXpresso55S69 board

MicroConsult PLUS:

• Download of exercises
• In addition, installation instructions and download links for the tool environment will allow you to repeat the exercises after the training.

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FREE: Attendees of select trainings dates (please check back with us) get a free LPCXpresso55S69 board featuring an LPC55S69 dual-core Arm Cortex®-M33 microcontroller.