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This commit is contained in:
Kelvin Lawson
2013-08-22 01:49:15 +01:00
parent 1f2879e03f
commit 1d25a82de8
1 changed files with 16 additions and 16 deletions
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32
ports/arm/platforms/dm36x/atomport-private.c
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@@ -92,25 +92,25 @@ void _mainCRTStartup(void)
int
low_level_init (void)
{
/* Initialise TIMER0 registers for interrupt 100 times per second */
/* Initialise TIMER0 registers for interrupt 100 times per second */
/* Reset & disable all TIMER0 timers */
TIMER0_REG(DM36X_TIMER_INTCTL_STAT) = 0; /* Disable interrupts */
TIMER0_REG(DM36X_TIMER_TCR) = 0; /* Disable all TIMER0 timers */
TIMER0_REG(DM36X_TIMER_TGCR) = 0; /* Put all TIMER0 timers in reset */
TIMER0_REG(DM36X_TIMER_TIM12) = 0; /* Clear Timer 1:2 */
/* Reset & disable all TIMER0 timers */
TIMER0_REG(DM36X_TIMER_INTCTL_STAT) = 0; /* Disable interrupts */
TIMER0_REG(DM36X_TIMER_TCR) = 0; /* Disable all TIMER0 timers */
TIMER0_REG(DM36X_TIMER_TGCR) = 0; /* Put all TIMER0 timers in reset */
TIMER0_REG(DM36X_TIMER_TIM12) = 0; /* Clear Timer 1:2 */
/* Set up Timer 1:2 in 32-bit unchained mode */
TIMER0_REG(DM36X_TIMER_TGCR) = (1 << 2); /* Select 32-bit unchained mode (TIMMODE) */
TIMER0_REG(DM36X_TIMER_TGCR) |= (1 << 0); /* Remove Timer 1:2 from reset (TIM12RS) */
TIMER0_REG(DM36X_TIMER_PRD12) = (TIMER_CLK / SYSTEM_TICKS_PER_SEC) - 1; /* Set period to 100 ticks per second (PRD12) */
TIMER0_REG(DM36X_TIMER_TCR) |= (0 << 8); /* Select external clock source for Timer 1:2 (CLKSRC12) */
/* Set up Timer 1:2 in 32-bit unchained mode */
TIMER0_REG(DM36X_TIMER_TGCR) = (1 << 2); /* Select 32-bit unchained mode (TIMMODE) */
TIMER0_REG(DM36X_TIMER_TGCR) |= (1 << 0); /* Remove Timer 1:2 from reset (TIM12RS) */
TIMER0_REG(DM36X_TIMER_PRD12) = (TIMER_CLK / SYSTEM_TICKS_PER_SEC) - 1; /* Set period to 100 ticks per second (PRD12) */
TIMER0_REG(DM36X_TIMER_TCR) |= (0 << 8); /* Select external clock source for Timer 1:2 (CLKSRC12) */
/* Enable interrupts */
TIMER0_REG(DM36X_TIMER_INTCTL_STAT) = (1 << 1) | (1 << 0); /* Enable/ack Compare/Match interrupt for Timer 1:2 */
/* Enable interrupts */
TIMER0_REG(DM36X_TIMER_INTCTL_STAT) = (1 << 1) | (1 << 0); /* Enable/ack Compare/Match interrupt for Timer 1:2 */
/* Enable timer */
TIMER0_REG(DM36X_TIMER_TCR) |= (2 << 6); /* Enable Timer 1:2 continuous (ENAMODE12) */
/* Enable timer */
TIMER0_REG(DM36X_TIMER_TCR) |= (2 << 6); /* Enable Timer 1:2 continuous (ENAMODE12) */
return 0 ;
}
@@ -150,7 +150,7 @@ __interrupt_dispatcher (void)
atomTimerTick();
/* Ack the interrupt */
INTC_REG((vector >= 32) ? DM36X_INTC_IRQ1 : DM36X_INTC_IRQ0) = (1 << (vector >= 32) ? (vector - 32) : vector);
INTC_REG((vector >= 32) ? DM36X_INTC_IRQ1 : DM36X_INTC_IRQ0) = (1 << (vector >= 32) ? (vector - 32) : vector);
/* Call the interrupt exit routine */
atomIntExit(TRUE);