Embedded C

C for microcontrollers — the C foundations you need, then fixed-width types, register bit operations, volatile, memory-mapped I/O, GPIO, interrupts, SysTick timing, ring buffers, drivers, startup code, linker sections, fixed-point and MISRA-style reliability, with real code compiled for an ARM Cortex-M4.

Lessons

• What Is Embedded C?
• Fixed-Width Types & Integer Promotion
• Register Bit Operations
• The volatile Keyword
• Memory-Mapped Registers
• GPIO: Driving LEDs & Reading Buttons
• Interrupts & ISRs in C
• SysTick, Timing & Non-Blocking Delays
• UART Driver with a Ring Buffer
• State Machines in Embedded C
• Driver & HAL Design
• Flash, RAM & the Memory Map
• Startup Code & the Reset Handler
• Stack, Heap & Static Allocation
• Fixed-Point Arithmetic
• Safe & Defensive Embedded C (MISRA C)
• Low Power & Optimization
• Debugging Embedded C