atmega_common/include/cpu.h

Common implementations and headers for ATmega family based micro-controllers.

Basic definitions for the ATmega common module

When ever you want to do something hardware related, that is accessing MCUs registers directly, just include this file. It will then make sure that the MCU specific headers are included.

PERIPH_I2C_NEED_READ_REG

PERIPH_I2C_NEED_WRITE_REG

PERIPH_I2C_NEED_READ_REGS

PERIPH_I2C_NEED_WRITE_REGS

enum @8

CPU_ATMEGA_CLK_SCALE_DIV1 = 0

CPU_ATMEGA_CLK_SCALE_DIV2 = 1

CPU_ATMEGA_CLK_SCALE_DIV4 = 2

CPU_ATMEGA_CLK_SCALE_DIV8 = 3

CPU_ATMEGA_CLK_SCALE_DIV16 = 4

CPU_ATMEGA_CLK_SCALE_DIV32 = 5

CPU_ATMEGA_CLK_SCALE_DIV64 = 6

CPU_ATMEGA_CLK_SCALE_DIV128 = 7

CPU_ATMEGA_CLK_SCALE_DIV256 = 8

CPU_ATMEGA_CLK_SCALE_DIV512 = 9

uint8_t __in_isr

global in-ISR state variable

void __enter_isr(void)

Run this code on entering interrupt routines.

void thread_yield_isr(void)

Exit ISR mode and yield with a return from interrupt.

Use at the end of ISRs in place of thread_yield_higher. If thread_yield is needed, use thread_yield followed by thread_yield_isr instead of thread_yield alone.

void __exit_isr(void)

Run this code on exiting interrupt routines.

void cpu_init(void)

Initialization of the CPU.

void cpu_print_last_instruction(void)

Print the last instruction’s address.

void atmega_set_prescaler(uint8_t clk_scale)

Initializes system clock prescaler.

void atmega_stdio_init(void)

Initializes avrlibc stdio.