RM0	Cortex-M0 / Cortex-M0+ implementation

This course covers both Cortex-M0 and Cortex-M0+ ARM CPUs

Objectives This course is split into 3 important parts: Processor architecture Software implementation Hardware implementation. A tutorial has been developed by ACSYS to facilitate the understanding of Cortex-M0 low level programming, therefore labs can be replayed after the course. The course explains how to design a SoC based on Cortex-M0 / Cortex-M0+, clarifying the operation of the interconnect and the debug facilities integrated in the CPU. This training has been delivered several times to companies developing SoCs for wireless / consumer market. Labs are run under Keil A more detailed course description is available on request at info@ac6-training.com

Prerequisites
	Basic knowledge of processor or DSP.

Plan

First day CORTEX-M0/M0+ ARCHITECTURE Instruction pipeline Internal bus matrix, fixed memory map Highlighting the differences between Cortex-M0 and Cortex-M3 Implementation options Cortex-M0+ additional features, dual privilege levels, dual stack ARM V6-M PROGRAMMING Program registers, xPSR format Thumb 16-bit instruction set Keil library functions, divide Barrier instruction, use cases DEBUG Coresight overview CPU-dependent coresight units, breakpoints, watchpoints Vector catch Serial Wire Debug Optional Micro Trace Buffer (Cortex-M0+) MEMORY PROTECTION UNIT - CORTEX-M0+ Memory protection overview, ARM v7 PMSA Cortex-M0 MPU and bus faults Region overview, memory type and access control, sub-regions Setting up the MPU Second day

EXCEPTION MECHANISM AND LOW POWER MODES Exception vs interrupt Automatic state saving on exception entry and exit, CISC approach Interrupt priority levels, nesting Tail-chaining and late arriving interrupts Fault management OS system call and task switching LOW POWER MODES Standby and deep sleep with state retention Event vs interrupt Optional wake-up interrupt controller SysTick hardware timer Requirements for the Power Management Unit EMBEDDED SOFTWARE DESIGN Application startup Placing code, data, stack and heap in the memory map, scatterloading Reset and initialisation Placing a minimal vector table Further memory map considerations, 8-byte stack alignment in handlers Long branch veneers CMSIS library HARDWARE IMPLEMENTATION Bus architecture, von Neuman operation Single-cycle I/O port (Cortex-M0+) Address pipelining Sequential transfers AHB-lite specification

 

Durée	Prix	Calendrier
2 jours	1400 €