| Per Westermark 01/20/10 09:45 Read: 172 times Sweden |
#172614 - Enough power? Responding to: Yash Chitalia's previous message |
You have now tried a number of different coding styles to control the servos. Most probably, there should be a significant speed difference between the different implementations.
You still always gets into troubles when running more than three motors. Are you sure that you have enough power to feed the current to all your motors? Concept of running 32 servo motors? Easy. Just build a chip with more hardware for PWM or similar. Note that many processors and specific chips have hardware to drive a motor, so it doesn't consume any processing load at all as long as you don't need to modulate the speed. |
| Topic | Author | Date |
| Controlling multiple servo motors | Yash Chitalia | 01/17/10 14:47 |
| executing code takes time | Erik Malund | 01/17/10 15:27 |
| PWM code | Steve M. Taylor | 01/17/10 15:35 |
| Thanks...now, about the PCA timer.. | Yash Chitalia | 01/17/10 16:06 |
| If SDCC Then Keil | Michael Karas | 01/17/10 16:15 |
| PWM IRQ code in C, bitops, 45 byte | Frieder Ferlemann | 01/18/10 05:19 |
| Optimization having no effect. | Yash Chitalia | 01/18/10 11:36 |
| PWM IRQ code in C, lookup table, 32 byte | Frieder Ferlemann | 01/18/10 05:29 |
| I haven't understood the table lookup concept very well... | Yash Chitalia | 01/19/10 00:55 |
| table lookup | Frieder Ferlemann | 01/19/10 02:39 |
| PWM IRQ code in C, lookup table, 30 byte | Frieder Ferlemann | 01/19/10 03:07 |
| Compiler specifics | Andy Neil | 01/19/10 04:35 |
| absolutely-locating xdata at 256 byte boundary | Frieder Ferlemann | 01/19/10 05:00 |
| I see. | Andy Neil | 01/19/10 06:34 |
| An example code.. | Yash Chitalia | 01/20/10 02:20 |
| Keil: Specifics and non-specifics | Andy Neil | 01/20/10 02:50 |
| Not really working... | Yash Chitalia | 01/20/10 03:55 |
| Enough power? | Per Westermark | 01/20/10 09:45 |
| RE: running 32 servo motors | Andy Neil | 01/20/10 10:34 |
| The chip sounds perfect... | Yash Chitalia | 01/18/10 11:47 |
| not worth it | Erik Malund | 01/18/10 12:10 |
| Servo control will become difficult then... | Yash Chitalia | 01/18/10 12:42 |
| output | Andy Peters | 01/18/10 12:52 |
| HCT chips have ... | Erik Malund | 01/18/10 14:12 |
| Eval a concept with a single PCA and 3:8 HCT multiplexer? | Frieder Ferlemann | 01/18/10 14:36 |
| Check their website | Andy Neil | 01/18/10 14:44 |
| Here is the code... | Yash Chitalia | 01/18/10 15:28 |
| "sbit MTRS=P2^0;" is not OK here | Frieder Ferlemann | 01/18/10 16:11 |
| Keil syntax? | Andy Neil | 01/18/10 17:36 |
| "#define" not working.."sbit" works | Yash Chitalia | 01/18/10 23:32 |
| Yes, you were correct originally! | Andy Neil | 01/19/10 01:22 |
| Seconded | Andy Neil | 01/18/10 12:45 |
| Servo_0.1.zip | Murray R. Van Luyn | 01/18/10 15:02 |
links | James Hinnant | 02/18/10 21:10 |
| Eventually feed the guys at http://servomaster.sf.net ? | Frieder Ferlemann | 01/18/10 15:12 |
| servomaster.sf.net FLOSS | James Hinnant | 02/04/10 11:48 |
| Maybe of some use... | James Bowmaster | 02/10/10 14:40 |
| Whoops... found a bug | James Bowmaster | 02/10/10 16:35 |
| What bug? | Andy Neil | 02/10/10 16:41 |
| Bug | James Bowmaster | 02/10/10 18:47 |
| Improved version uploaded | James Bowmaster | 02/12/10 21:26 |