Mikroelektronika MIKROE-350 Fiche De Données

Note: Not all of the MCUs have 16bit PWM, and not all of the MCUs have both Timer/Counter1
and Timer/Counter3. Sometimes, like its the case with ATmega168, MCU has only
Timer/Counter1 and channels A and B. Therefore constants that have in their name Timer3 or
channel C are invalid (for ATmega168) and will not be visible from Code Assistant. It is highly
advisable to use this feature, since it handles all the constants (available) and eliminates any
chance of typing error.

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- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

sub procedure PWM16bit_Init(dim wave_mode as byte, dim prescaler as
byte, dim inverted as byte, dim duty as word, dim timer as byte)

Nothing.

Initializes the PWM module. Parameter 

wave_mode

is a desired PWM-16bit

mode. 
There are several modes included :

- PWM, Phase Correct, 8-bit 
- PWM, Phase Correct, 9-bit 
- PWM, Phase Correct, 10-bit 
- Fast PWM, 8-bit 
- Fast PWM, 9-bit 
- Fast PWM, 10-bit 

Parameter 

prescaler

chooses prescale value N = 1,8,64,256 or 1024 (some

modules support 32 and 128, but for this you will need to check the datasheet
for the desired MCU). Paremeter 

inverted

is for choosing between inverted

and non inverted PWM signal. Parameter 

duty

sets duty ratio from 0 to TOP

value (this value varies on the PWM wave mode selected). PWM signal graphs
and formulas are shown below.