i m using CDP68HC68T1 RTC to trigger the interrupt once after one minute i receive data from zigbee. however, now the problem is that the interrupt of RTC will trigger once when i receive the data. this is a part of program for RTC interrupt.
void ext_int0(void) interrupt 0 { EX0=0; sprintf(s,"start alarm "); for(i=0; i<strlen(s); i++) Uart_Tx1(s[i]); LED=1; LED_ON(); LED_ONflag=1; LED_stop=1; LED_sec=0; //Read Status Reg to activate interrupt (set alarm interrupt) CS2 = 1; Read_SPI(STATUS_REG); SPI_Out(0x0A); //00001010 CS2 = 0; _nop_(); _nop_(); }