Lpc2000

Hi ALL!
I tryed to work with ADC on my LPC2142 but I failed :-(
I  adjusted  ADC  to  hardware-triggered  conversion  mode. Conversion  
start by  rising
edge on the MAT1.0 signal and when is DONE release IRQ. I read ADC's value  
in ISR and send
it via UART. IRQ occur  normally but extracted values are trash! Also, ADC  
fail selftest
when input pin assign to port pin, always read off 0's independently of  
port pin
signals. I  checked  all the power pins (Vdd=Vref=Vdda=3V, Vss=Vssa=0V),  
it's connected OK.
Can anybody help me find a mistake?

void T1_setup(void)
{
	FIO0DIR |= BIT(12);
	PINSEL0 = (PINSEL0 & ~(BIT(25) | BIT(24))) | BIT(25); // P0.12 as Match  
1.0 signal
	T1TCR = 2;      // stop & reset T0
	T1PR = 0;
	T1MR0 = PCLK / F_ADC / 2 + 0.5; // F_ADC = 24000 Hz
	T1MCR = BIT(1); // Reset on MR1: the TC will be reset if MR1 matches it
	T1EMR = (3 << 4) | BIT(0); // toggle External Match bit/output to 1 on  
match
	T1TCR = 1;      // run T0
}

void ADC_setup(void)
{
	AD0INTEN = 0;
	FIO0DIR |= BIT(22) | BIT(29);
	FIO0CLR = BIT(29);
//	PINSEL1 = (PINSEL1 & ~(BIT(27) | BIT(26))) | BIT(26); // Activate P0.29  
as ADC
	AD0CR = BIT(21) | ((PCLK / 4000000 - 1) << 8) | BIT(2); // activate AD0.2

	VICVectAddr0 = (unsigned int)&AD0_ISR;
	VICVectCntl0 = 0x20 | VIC_AD0;
	VICIntEnable |= BIT(VIC_AD0);

	AD0INTEN = BIT(2);

	AD0CR |= (0x6 << 24); // AD0.2 is sampled by rising edge on the MAT1.0  
signal
}

#pragma type_attribute = __arm
void AD0_ISR(void)
{
	FIO0SET = BIT(22);

	while ((U0LSR & ULSR_THRE) == 0);
	U0THR = (AD0DR2 >> 8) & 0xFF;

	FIO0CLR = BIT(22);
}

-- 
Regards
Eugene