| ??? 08/28/06 17:26 Read: times |
#123217 - why is the delay not being excecuted? Responding to: ???'s previous message |
In the 'CONFRIM_KEY_PRESS' routine, I have reset P0 to '0f0h'. Atleast this should stop the MC from jumping into 'KEY_PRESS_CONFIRMED' loop(if no button is pressed, which i have not while testing) and ultimately entering the 'keypad_ready1' routine where it waits for a key to be pressed.
My point is, the MC should execute the delay loop if no key is pressed and then execute 'SJMP SECOND_KEY_SCAN1'. |
| Topic | Author | Date |
| problem with delays | 01/01/70 00:00 | |
| Omitted pull-ups at Port 0? | 01/01/70 00:00 | |
| No, it's pulled high | 01/01/70 00:00 | |
| You should see the connection... | 01/01/70 00:00 | |
| could it be your approach? | 01/01/70 00:00 | |
| p0 initialised as input port | 01/01/70 00:00 | |
| post the WHOLE code | 01/01/70 00:00 | |
| WHOLE code | 01/01/70 00:00 | |
| Try this | 01/01/70 00:00 | |
| WHOLE code | 01/01/70 00:00 | |
| Assuming that the external pullups are not working | 01/01/70 00:00 | |
| why is the delay not being excecuted? | 01/01/70 00:00 | |
| HOW DO YOU KNOW | 01/01/70 00:00 | |
| Through debugging | 01/01/70 00:00 | |
| I know nothing about keil debugger | 01/01/70 00:00 | |
| make code that resembles the flowchart and you wil | 01/01/70 00:00 | |
| whole? | 01/01/70 00:00 | |
| Ashwins stack handling is totally unsuited! | 01/01/70 00:00 | |
| to generate tone of octave(8keys)with 89c51 | 01/01/70 00:00 | |
sandy please start a new thread | 01/01/70 00:00 |