| ??? 07/07/06 16:50 Read: times |
#119825 - 2 problems off the top Responding to: ???'s previous message |
(1)
timercounts = (TH0*256) + TL0; // OK time = timercounts/921583; // time will be 0 rpm = (unsigned int)(30/time); // this would work if time != 0 (2) You are doing floating point math in the interupt. A very bad idea. It will take a long time. The compiler will push everything on the stack. Do the math in main(). Better yet do not use floats here. It is not required in you program. depending on the details an int or long will work. |
| Topic | Author | Date |
| frequency of a digital pulse | 01/01/70 00:00 | |
| Variable definitions ? | 01/01/70 00:00 | |
| Please post formatted code | 01/01/70 00:00 | |
| Some points: | 01/01/70 00:00 | |
| misconceptions cleared | 01/01/70 00:00 | |
| inappropiate response | 01/01/70 00:00 | |
| the entire problem again | 01/01/70 00:00 | |
| flag=!flag ? | 01/01/70 00:00 | |
| The value of Flag is known! | 01/01/70 00:00 | |
| I see, but I don't C | 01/01/70 00:00 | |
| It's illogical, Captain... | 01/01/70 00:00 | |
It is worse than that | 01/01/70 00:00 | |
| nope | 01/01/70 00:00 | |
| Please post formatted code!! | 01/01/70 00:00 | |
| he did follow the instructions | 01/01/70 00:00 | |
| Oh no he didn't! | 01/01/70 00:00 | |
| Argument | 01/01/70 00:00 | |
| well, I saw the indentions and - shame | 01/01/70 00:00 | |
| formatted code................. | 01/01/70 00:00 | |
| thus therefore undefined | 01/01/70 00:00 | |
| Formatted, but not the same code! | 01/01/70 00:00 | |
| 2 problems off the top | 01/01/70 00:00 | |
| a blatant understatement | 01/01/70 00:00 | |
| Implicit casting mess. | 01/01/70 00:00 | |
| commentless code is worthless | 01/01/70 00:00 |