| ??? 08/16/06 18:29 Read: times |
#122365 - Remote Control using AT89C2051 schematic Responding to: ???'s previous message |
Hello Marshall,
I did a remote control using a AT89C2051 a while back. Here is the schematic. http://members.aol.com/cpu8052/2051rmct.gif. I used the power down mode to save on batter current drain. It only consumed 400 MicroAmps while in the power down mode (PCON |= 0x02;). Any time a key is depressed it gets diode OR'd to the reset circuit. It was very reliable. Hope this helps with your design. Regards, Charles Bannister  |
| Topic | Author | Date |
| LPC 9xx Can't clear KBIF | 01/01/70 00:00 | |
| Turn it off? | 01/01/70 00:00 | |
| I could turn it off | 01/01/70 00:00 | |
| to turn the KBIF, you have to change the condition | 01/01/70 00:00 | |
| Thanks Erik - I'll give it a go | 01/01/70 00:00 | |
| an added comment | 01/01/70 00:00 | |
| What is the rate of change on the input signals? | 01/01/70 00:00 | |
| nothing of value except the ability to wake up the | 01/01/70 00:00 | |
| Interrupt for pulse train | 01/01/70 00:00 | |
| that's basically what the KBI does | 01/01/70 00:00 | |
| Rate of change ~<100kHz | 01/01/70 00:00 | |
| why not? | 01/01/70 00:00 | |
| I did not discuss | 01/01/70 00:00 | |
| It is ok but KBIF is set forever | 01/01/70 00:00 | |
| that you do not clear the reason | 01/01/70 00:00 | |
| I change the state of the pin before | 01/01/70 00:00 | |
| could be the problem | 01/01/70 00:00 | |
Simulators problem | 01/01/70 00:00 | |
| Remote Control using AT89C2051 schematic | 01/01/70 00:00 | |
| just great | 01/01/70 00:00 | |
| Another BS answer. | 01/01/70 00:00 | |
| No BS, I did | 01/01/70 00:00 |