| ??? 05/09/04 17:03 Read: times |
#70071 - Back to basics Responding to: ???'s previous message |
" got digital signals as output from ADC by connecting "OEC, SC & ALE" togather using mode "0". " What is mode "0" of which ? "do you have any idea how to get control of that without MCU." None whatsoever. " have three ports of 8255 connecting to "P0" of AT89C52. but i have no idea how to talk to that registers. " Idea is an understatement. What you need is solid tutorial. Try this for a start and Google for more: http://www.utdallas.edu/~parik/ee...slides.pdf Understand the 8255, as you seem to be hell bent on using it. And going by your queries, 8255 is going to turn out a hard nut ( chip?) to crack. Good luck. Raghu |
| Topic | Author | Date |
| ADC 0809....with 555 timer | 01/01/70 00:00 | |
| RE: ADC 0809....with 555 timer | 01/01/70 00:00 | |
| controlling ADC 0809....throug 555 timer | 01/01/70 00:00 | |
| RE: controlling ADC 0809....throug 555 timer | 01/01/70 00:00 | |
| RE: ADC 0809....with 555 timer | 01/01/70 00:00 | |
| RE: ADC 0809....with 555 timer | 01/01/70 00:00 | |
| RE: ADC 0809....with 555 timer | 01/01/70 00:00 | |
| RE: ADC 0809....with 555 timer | 01/01/70 00:00 | |
| photodiode!! | 01/01/70 00:00 | |
| RE: photodiode!! | 01/01/70 00:00 | |
| RE: photodiode!! | 01/01/70 00:00 | |
| Back to basics | 01/01/70 00:00 | |
RE: Back to basics | 01/01/70 00:00 |