| ??? 11/23/09 11:23 Modified: 11/23/09 11:41 Read: times |
#171060 - We have not seen the schematics Responding to: ???'s previous message |
but if START=0 and STOP=1 are in some way related to triac´s gate (and you are using inverted logic), there is a mistake. Triac is triggered and keep fired until Iak falls below some charasteristic value. It means that, for minimum bright, you have to fired the triac NEAR the next zero-crossing. And, for maximum power, you have to trigger it inmediately after one zero-crossing.
And the above is not what your software is done. Trigger pulse width can be quite short, deppending on triac. It is only to turn it on; it will turn off when current drops bellow sustain value. Daniel PD: what is msec_wait(9)? May be this external function changes interrupt states? For testing purposes simply complement LED outputs in ex0_irs. And may be your circuit is not firing correctly P3.2... |
| Topic | Author | Date |
| Intensity control | 01/01/70 00:00 | |
| show some CODE | 01/01/70 00:00 | |
| Dear Erik | 01/01/70 00:00 | |
| where are the comments? | 01/01/70 00:00 | |
| We can't read your mind | 01/01/70 00:00 | |
| Erik & Richard | 01/01/70 00:00 | |
| What prevents you from putting in the required comments? | 01/01/70 00:00 | |
| While putting in comments i saw one error | 01/01/70 00:00 | |
| Hmmmm... | 01/01/70 00:00 | |
| Jitter | 01/01/70 00:00 | |
| still no luck | 01/01/70 00:00 | |
| We have not seen the schematics | 01/01/70 00:00 | |
| Its working | 01/01/70 00:00 | |
| Another Program to test my interrupt !! | 01/01/70 00:00 | |
Code legibility | 01/01/70 00:00 |