| ??? 03/16/07 08:25 Read: times |
#135083 - Hints. Responding to: ???'s previous message |
microprocessor's port1 will light on the led.
How is the LED connected ? Port 1 has 8 pins. Does your device support digital output on Port 1 ? There are some that don't. What device are you using ? Did you check its datasheet for the exact output circuitry that Port 1 uses ? void main(void)
{
delay();
P1=0x00;
}
Your main() function returns ! What context does it return to ? On a PC, that would be the operating system, but on the uC, there is no operating system to return to. |
| Topic | Author | Date |
| Help with the delay program | 01/01/70 00:00 | |
| What does it do? | 01/01/70 00:00 | |
| Hints. | 01/01/70 00:00 | |
| Check with debugger | 01/01/70 00:00 | |
| could this be it ? | 01/01/70 00:00 | |
| Difficult to see | 01/01/70 00:00 | |
| that depends | 01/01/70 00:00 | |
| RET in main | 01/01/70 00:00 | |
| nope - and compiler dependent | 01/01/70 00:00 | |
| RET in functions | 01/01/70 00:00 | |
| how do you know that ? | 01/01/70 00:00 | |
| Because of Startup | 01/01/70 00:00 | |
| ah | 01/01/70 00:00 | |
| some contra | 01/01/70 00:00 | |
in other words - and who cares | 01/01/70 00:00 |