microprocessors - 3PMEMICR

Goal(s)

Understand:

• the structure of a microprocessor system: CPU/memory/peripherals/shared bus communication/memory map,
• the role of the components of a CPU's external architecture, as seen by the programmer: PC/SP/general-purpose registers,
• what a CPU's instruction sets and addressing modes are,
• what the execution stack is and its uses,
• the development flow for converting C code to machine code,
• the different techniques for handling events (polling/interrupts) in a microprocessor system.

Be able to:
*program a microprocessor system in low-level C: bit-level information manipulation, peripheral implementation,
*use a development tool for programming and debugging a low-level program by observing:

• • CPU registers and peripherals,
  • memory,
  • step-by-step execution of C or assembly code.

The various concepts covered in this course are implemented on a Texas Instrument MSP430 microcontroller.

Content(s)

Session 1

• Presentation of the architecture of a microprocessor system
• Getting started with the IAR Embedded Workbench development environment
• Implementation of a GPIO device in C

Session 2
Implementation of an external device (ADC) connected to the MSP430 microcontroller via an SPI bus:

• Writing functions to send data to be converted to analog (requires the use of GPIO and the USI device)
• Generation of different waveforms (square, sawtooth, sine)

Sessions 3 and 4

• C compilation flow
• External CPU architecture
• Instruction set and addressing modes

Session 5

• Execution stack
• Study of low-level function implementation mechanisms (call/return/passing parameters and return values)
• Recursive function calls

Session 6
Study and comparison of mechanisms (polling/interrupt) for handling events in a microprocessor system.

Digital electronics
C programming

Test

CC1:
CRs submitted at the end of the sessions.

ET1 and ET2:
Exams, all documents and PHELMA calculators permitted.

Partie microprocesseur : N_µP= 20%CC+80%DS_µP

Additional Information