Silicon Laboratories Stepper Machine Uživatelský manuál stáhnout pdf (Strana 20)

AN155

20 Rev. 1.1

Figure D3. Timer ISR

Timer_ISR

forward ?

increment StepIndex.

increment position.

done ?

get value from table.

multiply by Tzero.

write value to timer.

decrement StepIndex.

decrement position.

decrement

slewCount.

Return from

Interrupt

Y

Y

N

get StepPattern using index.

write pattern to P0.

evaluate motor state.

accelerate?

else

decelerate?

decrement

TableIndex.

increment

TableIndex.

set ET0

clear ET0.

stop T0.

turn-off LED.

set doneFlag.

Y

Y

else

slewing?

Y

N

N

N

N

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 35 36

Komentáře k této Příručce

Žádné komentáře