[nms48]

mình viết chương trình này nhưng nó bảo lỗi như thế này: có ai biết sửa lỗi này kô.help me
"Interrupts disabled during call to prevent re-entrancy: (kich)"

#include <18f4520.h>
#DEVICE ADC=10
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, STOP=1)
int16  U=0,I=0;

// ngat ngoai
#int_EXT
void kich(int16 a=0)   //a goc kich
{
   set_timer0(a);
}

//ngat timer0
#int_timer0
void timer0_isr()
{
   set_timer1(15534);     //10ms thi tran
   output_high(pin_D0);
   delay_us(10);
   output_low(pin_D0);
}
#int_timer1
void timer1_isr()
{
   output_high(pin_D0);
   delay_us(10);
   output_low(pin_D0);
}
//doc ADC
void doc_ADC()
{
   set_ADC_channel(0);
   delay_us(10);
   ap=read_ADC();

   set_ADC_channel(1);
   delay_us(10);
   dong=read_ADC();
}


// chuong trinh chinh
void main()
{
   setup_ADC(All_Analog);
   setup_ADC(ADC_CLOCK_INTERNAL);
   enable_interrupts(int_EXT);
   EXT_int_edge(L_TO_H);
   setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
   enable_interrupts(int_timer0);
   setup_timer_1(T1_INTERNAL|T1_DIV_by_1);
   enable_interrupts(int_timer1);
   enable_interrupts(global);
while(1)
 {
    doc_ADC();
    kich(ap);
    U=U*220/512;
    I=I*200/1024;
    printf("%lu %lu \n\r",U,I);
 }
 }