Config.h

Purpose: Identifies the MCU and validates package and operating-grade selections.

The library defines the device identity macro MCU_ATMEGA328P and generic feature flags such as MCU_HAS_GPIO, MCU_HAS_ADC, and MCU_HAS_SPI.

The consuming configuration may select one package and one operating grade before including any ATmega328P header:

#define MCU_PACKAGE_PDIP28
#define MCU_GRADE_INDUSTRIAL_85C
 
#include <atmega328p/ATmega328P.h>

Available package selectors:

• MCU_PACKAGE_PDIP28
• MCU_PACKAGE_MLF28
• MCU_PACKAGE_TQFP32
• MCU_PACKAGE_MLF32

Available grade selectors:

• MCU_GRADE_INDUSTRIAL_85C
• MCU_GRADE_INDUSTRIAL_105C
• MCU_GRADE_AUTOMOTIVE_125C

For MLF32, select MCU_MLF32_PUNCH or MCU_MLF32_SAWN when the package drawing identifies the manufacturing style.

The optional MCU_REQUIRE_PACKAGE, MCU_REQUIRE_GRADE, and MCU_REQUIRE_MLF32_STYLE macros make a missing selection a compile-time error.

Config.h contains selection checks only. Device characteristics are exposed by their corresponding C++ namespaces.