| ??? 03/15/05 19:24 Read: times |
#89744 - description Responding to: ???'s previous message |
ORG 0X0000
LJMP MAIN ORG 0X0013 /*EXTERNAL INTERRUPT*/ ISR_IE1: MOV R1,#0x00 RETI ORG 0X0030 MAIN: MOV R1,#0x01 /* HERE I AM SETTING THE R1 AS A FLAG IN ORDER TO CHECK WHETHER THE INTERRUPT OCCURS, IF IT OCCURS, THE INTERRUPT ROUTINE WILL CLEAR THIS R1 */ SETB TCON.2 MOV IE,#0x8C HERE1: CJNE R1,#0x00,HERE1 /*AFTER EXTERNAL INTERRUPT */ CLR IE.2 /*PULSE GENERATION STARTS*/ ........................... ............................. the code after this is just a look-up table fetching routine, i tested that section without any interrupts and it works well. my aim is this section(look-up table) should start after the external interrupt. but unconditionally the interrupt occurs and starts my pulses. that was my problem |
| Topic | Author | Date |
| external interupt problem | 01/01/70 00:00 | |
| grounding or noise | 01/01/70 00:00 | |
| initially connected high | 01/01/70 00:00 | |
| Triggered signal generator | 01/01/70 00:00 | |
| Re:external interupt problem | 01/01/70 00:00 | |
| USED CODE | 01/01/70 00:00 | |
| Goobldeygook | 01/01/70 00:00 | |
| formatted code | 01/01/70 00:00 | |
| Formatted ??? | 01/01/70 00:00 | |
| only interrupt routine | 01/01/70 00:00 | |
| questions | 01/01/70 00:00 | |
| description | 01/01/70 00:00 | |
| that was my problem | 01/01/70 00:00 | |
| without interrupt | 01/01/70 00:00 | |
| OK what happens | 01/01/70 00:00 | |
| timer? | 01/01/70 00:00 | |
| source of confoosion | 01/01/70 00:00 | |
| To Vijayganesh! | 01/01/70 00:00 | |
code confusion | 01/01/70 00:00 |