sam7x, таймер Опции

[serikbei]

У меня проблема с теймером. Не могу запустить примерчик. Думаю проблема с прерываниями. Работаю с FreeRTOS использую компайлер gcc. Пишет что непонимает __ramfunc. Каким образом я могу запустить этот пример?

void AT91F_TC_Open ( AT91PS_TC TC_pt, unsigned int Mode, unsigned int TimerId)
{
unsigned int dummy;

//* First, enable the clock of the TIMER
AT91F_PMC_EnablePeriphClock ( AT91C_BASE_PMC, 1<< TimerId ) ;

//* Disable the clock and the interrupts
TC_pt->TC_CCR = AT91C_TC_CLKDIS ;
TC_pt->TC_IDR = 0xFFFFFFFF ;

//* Clear status bit
dummy = TC_pt->TC_SR;
//* Suppress warning variable "dummy" was set but never used
dummy = dummy;
//* Set the Mode of the Timer Counter
TC_pt->TC_CMR = Mode ;

//* Enable the clock
TC_pt->TC_CCR = AT91C_TC_CLKEN ;
}


__ramfunc void timer0_c_irq_handler(void)
{
AT91PS_TC TC_pt = AT91C_BASE_TC0;
unsigned int dummy;
//* Acknowledge interrupt status
dummy = TC_pt->TC_SR;
//* Suppress warning variable "dummy" was set but never used
dummy = dummy;
count_timer0_interrupt++;
//* Read the output state
if ( (AT91F_PIO_GetInput(AT91C_BASE_PIOA) & LED3 ) == LED3 )
{
AT91F_PIO_ClearOutput( AT91C_BASE_PIOA, LED3 );
}
else
{
AT91F_PIO_SetOutput( AT91C_BASE_PIOA, LED3 );
}
}

void timer_init ( void )
{
//init the timer interrupt counter
count_timer0_interrupt=0;
count_timer1_interrupt=0;

//* Open timer0
AT91F_TC_Open(AT91C_BASE_TC0,TC_CLKS_MCK1024,AT91C_ID_TC0);

//* Open Timer 0 interrupt
AT91F_AIC_ConfigureIt ( AT91C_BASE_AIC, AT91C_ID_TC0, TIMER0_INTERRUPT_LEVEL,AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, timer0_c_irq_handler);
AT91C_BASE_TC0->TC_IER = AT91C_TC_CPCS; // IRQ enable CPC
AT91F_AIC_EnableIt (AT91C_BASE_AIC, AT91C_ID_TC0);


//* Start timer0
AT91C_BASE_TC0->TC_CCR = AT91C_TC_SWTRG ;

//* End
}