i would like to know the c++ code to generate increasing pwm

"I'm also considering the -ChangeAllMagicNumbers switch to enable translation of nasty magic numbers to readable constants."

What we always have wanted.

enum {
    ONE = 1,
    TWELVE = 12
};

enum {
    UNSIGNED_ONE_SHIFTED_LEFT_12_STEPS = (unsigned)ONE << TWELVE
};

enum {
    MAGIC_BIT_TO_TURN_ON_POWER_TO_ADC0 = UNSIGNED_ONE_SHIFTED_LEFT_12_STEPS
};

A |= MAGIC_BIT_TO_TURN_ON_POWER_TO_ADC0;

"I'm also considering the -ChangeAllMagicNumbers switch to enable translation of nasty magic numbers to readable constants."

What we always have wanted.

enum {
    ONE = 1,
    TWELVE = 12
};

enum {
    UNSIGNED_ONE_SHIFTED_LEFT_12_STEPS = (unsigned)ONE << TWELVE
};

enum {
    MAGIC_BIT_TO_TURN_ON_POWER_TO_ADC0 = UNSIGNED_ONE_SHIFTED_LEFT_12_STEPS
};

A |= MAGIC_BIT_TO_TURN_ON_POWER_TO_ADC0;