| ??? 05/17/12 10:36 Read: times |
#187392 - uC sine generator Responding to: ???'s previous message |
Andy Peters said:
Or you could use a microcontroller to generate sine values, again using a lookup table or perhaps just calling a math library with a sine function. Use a timer to get a new value on a regular interval. Hi Andy, This is what I did, implemented in a ATmega48 running overclocked at 32MHz, works great but for 8 bits resolution I can get up to 2KHz sine. The problem with the above, is it is right on the limit of design, I'm having to overclock the Mega and I don't like to do that. Anyhow, I've ordered some at28C64 eeproms(parallel) 8k 150ns access time. Cheers |
| Topic | Author | Date |
| 256bit x 8 proms | 01/01/70 00:00 | |
| What frequency Sine wave & Clock ? | 01/01/70 00:00 | |
| Thank you | 01/01/70 00:00 | |
| DDS (Direct Digital Synthesis) | 01/01/70 00:00 | |
| digital sine wave | 01/01/70 00:00 | |
| uC sine generator | 01/01/70 00:00 | |
| DMA | 01/01/70 00:00 | |
| neither do I | 01/01/70 00:00 | |
| ARN | 01/01/70 00:00 | |
| 'F120 Series | 01/01/70 00:00 | |
| Other solutions | 01/01/70 00:00 | |
| 150nS access time is so long | 01/01/70 00:00 | |
| is that realy the case? | 01/01/70 00:00 | |
| Of course my solution | 01/01/70 00:00 | |
| Hmmm.., nice but... | 01/01/70 00:00 | |
| Those are actually PALs not CPLDs | 01/01/70 00:00 | |
| ATF750CL for PT clocks | 01/01/70 00:00 | |
| ATF750 | 01/01/70 00:00 | |
| ATF750C ? | 01/01/70 00:00 | |
| Yes, Jim You are exactly right. | 01/01/70 00:00 | |
| Can I suggest | 01/01/70 00:00 | |
| ATDH1150USB | 01/01/70 00:00 | |
| Update : ATDH1150VPC | 01/01/70 00:00 | |
Thanks JIM | 01/01/70 00:00 |