| ??? 08/21/09 03:41 Read: times |
#168424 - @jan Responding to: ???'s previous message |
hi jan..... i am doing a password based door lock system using microcontroller..... i am using keypad of phone to enter password, i used cm8870 to decode dtmf signals into binary code.... once i switch on the power it is taking the values itself(the previous value which i entered)... i used the loop
again:mov a,P0 anl a,#0fh cjne a,#0fh,next sjmp again next:......... .............. but this loop is not working.... Port 0 is stored with the previous value.... how to make all bits of port 0 high????? |
| Topic | Author | Date |
| HELP ME PLZZZZZZZ.............. | 01/01/70 00:00 | |
| keyboard problem? | 01/01/70 00:00 | |
| If you play by the rules... | 01/01/70 00:00 | |
@jan | 01/01/70 00:00 | |
| @jan | 01/01/70 00:00 |