| ??? 05/20/09 20:07 Modified: 05/20/09 20:12 Read: times |
#165517 - is possible to filter the pwm output... Responding to: ???'s previous message |
is possible to filter the pwm output to lower the sansation of pulsing/blinking of the led?
How can I achieve this? Also: I'm having a trouble here, but I think it hard to solve. I'm driving 8 leds by software PWM, all with 8bit depth pwm. The intensity of each led is controlled by an incoming serial data, a byte arrives at every 44uS continuosly. So, every 44uS the microcontroller needs to stop the PWM routine to process the serial byte, this gives a jitter/flicker(?) in the leds. Some idea to solve this? Other types of solutions are ok too. Does exists some type of analogic voltage latch? Thanks. |
| Topic | Author | Date |
| Simple PWM to drive led | 01/01/70 00:00 | |
| Loop lasts too long! | 01/01/70 00:00 | |
| I put the delay... | 01/01/70 00:00 | |
| Did you see? | 01/01/70 00:00 | |
| didnt noticed! | 01/01/70 00:00 | |
| Ok, try the following... | 01/01/70 00:00 | |
| the JMP | 01/01/70 00:00 | |
| I thought this was your intention... | 01/01/70 00:00 | |
| Another try | 01/01/70 00:00 | |
| is possible to filter the pwm output... | 01/01/70 00:00 | |
| PWM from a Timer interrupt? | 01/01/70 00:00 | |
| questions | 01/01/70 00:00 | |
| best code until now | 01/01/70 00:00 | |
| read replies | 01/01/70 00:00 | |
| will lower refresh rate | 01/01/70 00:00 | |
| Time to switch... | 01/01/70 00:00 | |
| Wrong. | 01/01/70 00:00 | |
| my code is doing what I want | 01/01/70 00:00 | |
| TIming | 01/01/70 00:00 | |
| FOR NOW!!!! | 01/01/70 00:00 | |
| The old story... | 01/01/70 00:00 | |
| DJNZ | 01/01/70 00:00 | |
| Dec | 01/01/70 00:00 | |
| Do nothing? | 01/01/70 00:00 | |
| Speed | 01/01/70 00:00 | |
| slowdown | 01/01/70 00:00 | |
| Chico | 01/01/70 00:00 | |
| Not yet... | 01/01/70 00:00 | |
good catch | 01/01/70 00:00 |