| ??? 01/05/09 13:32 Read: times |
#161304 - Error % is incremental. Responding to: ???'s previous message |
Hello Sir,
By 'CLR TR0 'I mean that I want a fresh count of pulses/sec,for every run of program, which must be equal every time. Eventhough your 'less than 1% error' thinking sounds fine,one thing I'm unable to understnad is that for every run of the main loop, the TL0 count increments by one(44,45,46...). Now after executing the program once again,the count in TL0 varied in the range 0f 38 t0 57(806Hz to 863Hz),whereas the count in TH0 remains constant i.e 3. So the error keeps on increasing. |
| Topic | Author | Date |
| Frequency (Event) Counter Problem | 01/01/70 00:00 | |
| less than 1% error | 01/01/70 00:00 | |
| Error % is incremental. | 01/01/70 00:00 | |
| ;STARTING BOTH THE TIMERS AT THE SAME TIME | 01/01/70 00:00 | |
| Less variations in TL0 but still error | 01/01/70 00:00 | |
| I do not know, but | 01/01/70 00:00 | |
| CRO Frequency Measurement | 01/01/70 00:00 | |
| Better But Still An Issue | 01/01/70 00:00 | |
| How stabile is your signal source? | 01/01/70 00:00 | |
| Very Good Point... | 01/01/70 00:00 | |
| Easier if 89c52 is used | 01/01/70 00:00 | |
| How stabile is your signal source? | 01/01/70 00:00 | |
NE555 is popular but not a precision device | 01/01/70 00:00 |