Embedded C Programming Notes
1. **Introduction to Embedded Systems**
- **Definition**: Embedded systems are specialized computing systems that perform dedicated
functions or tasks.
- **Examples**: Microcontrollers in household appliances, automotive controllers, medical devices,
etc.
2. **Embedded C vs. Standard C**
- **Hardware Interaction**: Embedded C includes direct access to hardware and memory-mapped
I/O.
- **Limited Resources**: Focus on optimizing for limited memory and processing power.
- **Real-Time Constraints**: Often requires real-time performance with deterministic timing.
3. **Microcontroller Basics**
- **Microcontroller Units (MCUs)**: Small computing devices that integrate a processor, memory,
and I/O peripherals on a single chip.
- **Common Microcontrollers**: AVR, PIC, ARM Cortex-M series.
4. **Development Environment**
- **Integrated Development Environment (IDE)**: Tools like Keil, MPLAB, IAR, and Atmel Studio.
- **Compiler**: Converts Embedded C code to machine code (e.g., GCC for ARM).
- **Debugger**: Tools to debug code directly on the hardware (e.g., JTAG, SWD).
5. **Basic Structure of Embedded C Program**
- **Header Files**: Inclusion of necessary libraries and definitions (e.g., `<avr/io.h>`, `<xc.h>`).
- **Main Function**: Entry point of the program.
```c
#include <avr/io.h>
int main(void) {
// Setup and configuration
// Main loop
1. **Introduction to Embedded Systems**
- **Definition**: Embedded systems are specialized computing systems that perform dedicated
functions or tasks.
- **Examples**: Microcontrollers in household appliances, automotive controllers, medical devices,
etc.
2. **Embedded C vs. Standard C**
- **Hardware Interaction**: Embedded C includes direct access to hardware and memory-mapped
I/O.
- **Limited Resources**: Focus on optimizing for limited memory and processing power.
- **Real-Time Constraints**: Often requires real-time performance with deterministic timing.
3. **Microcontroller Basics**
- **Microcontroller Units (MCUs)**: Small computing devices that integrate a processor, memory,
and I/O peripherals on a single chip.
- **Common Microcontrollers**: AVR, PIC, ARM Cortex-M series.
4. **Development Environment**
- **Integrated Development Environment (IDE)**: Tools like Keil, MPLAB, IAR, and Atmel Studio.
- **Compiler**: Converts Embedded C code to machine code (e.g., GCC for ARM).
- **Debugger**: Tools to debug code directly on the hardware (e.g., JTAG, SWD).
5. **Basic Structure of Embedded C Program**
- **Header Files**: Inclusion of necessary libraries and definitions (e.g., `<avr/io.h>`, `<xc.h>`).
- **Main Function**: Entry point of the program.
```c
#include <avr/io.h>
int main(void) {
// Setup and configuration
// Main loop
