Datasheet

Library Example
The example changes PWM duty ratio on pin PB3 continually. If LED is connected
to PB3, you can observe the gradual change of emitted light.
program PWM_Test
dim current_duty as byte
current_duty1 as byte
main:
DDB0_bit = 0 ' Set PORTB pin 0 as input
DDB1_bit = 0 ' Set PORTB pin 1 as input
DDC0_bit = 0 ' Set PORTC pin 0 as input
DDC1_bit = 0 ' Set PORTC pin 1 as input
current_duty = 127 ' initial value for current_duty
current_duty1 = 127 ' initial value for current_duty
DDB3_bit = 1 ' Set PORTB pin 3 as output pin
for the PWM (according to datasheet)
DDD7_bit = 1 ' Set PORTD pin 7 as output pin
for the PWM1 (according to datasheet)
PWM_Init(_PWM_PHASE_CORRECT_MODE, _PWM_PRESCALER_8,
_PWM_NON_INVERTED, 127)
PWM1_Init(_PWM1_PHASE_CORRECT_MODE, _PWM1_PRESCALER_8,
_PWM1_NON_INVERTED, 127)
while TRUE ' Endless loop
if (PINB0_bit <> 0) then ' Detect if PORTB pin 0 is pressed
Delay_ms(40) ' Small delay to avoid deboucing effect
Inc(current_duty) ' Increment duty ratio
PWM_Set_Duty(current_duty) ' Set incremented duty
end if
if (PINB1_bit <> 0) then ' Detect if PORTB pin 1 is pressed
Delay_ms(40) ' Small delay to avoid deboucing effect
Dec(current_duty) ' Decrement duty ratio
PWM_Set_Duty(current_duty) ' Set decremented duty ratio
end if
if (PINC0_bit <> 0) then ' Detect if PORTC pin 0 is pressed
Delay_ms(40) ' Small delay to avoid deboucing effect
Inc(current_duty1) ' Increment duty ratio
PWM1_Set_Duty(current_duty1) ' Set incremented duty
end if
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MIKROELEKTRONIKA - SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD
Libraries
mikroBasic PRO for AVR
CHAPTER 6