Mr. Integral
Embedded notes/Foundations

STAGE 01 OF 5

Foundations

The physics and the language underneath every line of firmware: how a pin carries a 0 or a 1, what the C compiler turns your code into, and what a processor actually does with memory.

3 units18 of 18 lessons available
∫ MR-INTEGRAL · 15 UNITS · 90 LESSONS016 lessonsPinssignals and circuits036 lessonsCPU coreand memory026 lessonsRegisters096 lessonsInterruptcontroller136 lessonsSchedulertasks and deadlines046 lessonsFlash imagebuilt by the toolchain156 lessonsSecure bootupdates and keys056 lessonsBoot ROMand reset066 lessonsDebug portprobe, trace146 lessonsPowersleep, brown-out126 lessonsDMA076 lessonsGPIOpins in and out086 lessonsClocksand timers106 lessonsUART · SPI · I²Cserial links116 lessonsADC · DACanalog
∫ MR-INTEGRAL · 15 UNITS01Pins · signals and circuits036 lessonsCPU coreand memory026 lessonsRegistersC close to the metal096 lessonsInterruptcontroller136 lessonsSchedulertasks and deadlines046 lessonsFlash imagebuilt by the toolchain156 lessonsSecure bootupdates and keys056 lessonsBoot ROMand reset066 lessonsDebug portprobe, trace146 lessonsPowersleep, brown-out126 lessonsDMA076 lessonsGPIOpins in and out086 lessonsClocksand timers106 lessonsUART · SPI · I²Cserial links116 lessonsADC · DACanalog

Signals and Circuits

Where the software meets the wire.

  1. Voltage, Current, and Ground
  2. Digital Signals and Logic Levels
  3. Resistors, Pull-Ups, and Pull-Downs
  4. Capacitors and Decoupling
  5. Switches, LEDs, and Interface Circuits
  6. Reading Schematics and Datasheets

Programming Close to Hardware

Where the C compiler meets the silicon.

  1. Binary, Hexadecimal, and Bit Operations
  2. Integer Types, Signedness, and Overflow
  3. Pointers, Arrays, and Addresses
  4. Structures, Alignment, and Data Layout
  5. Memory-Mapped Registers and Volatile
  6. Undefined Behavior and Safe Register Access

Processors and Memory

What the chip does with every address.

  1. What Is Inside a Microcontroller?
  2. Instructions, Registers, and the CPU
  3. Buses and Address Spaces
  4. Flash, RAM, and Nonvolatile Memory
  5. The Stack, the Heap, and Static Storage
  6. Clocks, Reset, and Execution