Internship← Embedded Systems learning pathEmbedded Systems · Module 3 of 10
Embedded C programming
Write efficient C for microcontrollers.
📖 Key ideas
- Embedded C works close to hardware registers.
- Bitwise operators set, clear and toggle bits: |=, &= ~, ^=.
- volatile tells the compiler a value can change unexpectedly (hardware, ISRs).
- Fixed-width types: uint8_t, uint16_t, uint32_t.
- Avoid dynamic memory allocation in small systems.
💡 Real-life example: Bit manipulation is flipping individual light switches on a big switchboard.
Bitwise operatorOperates on individual bits
volatilePrevents compiler optimising away hardware reads
uint8_tUnsigned 8-bit integer
RegisterHardware control location