| ??? 04/18/08 20:21 Read: times |
#153690 - need help....8051 output voltages... |
hi all
please ,,,, the 8051 MC is working so fine but when i send " 1 " to a pin it gives only 0.9 Volt and when i send " 0 " it works fine and send 0 volt ,,,,i wonder why is that ,,i changed 4 microcontrollers and same problem there ! what could it be note : nothing is connected the output pins except a led only and the same voltages presenet with or without the leds thank you |
| Topic | Author | Date |
| need help....8051 output voltages... | 01/01/70 00:00 | |
| Which port? | 01/01/70 00:00 | |
| thank Daniel but,,,, | 01/01/70 00:00 | |
| i`'m using at89c51 | 01/01/70 00:00 | |
| From the datasheet | 01/01/70 00:00 | |
| thank you | 01/01/70 00:00 | |
| made it a FAQ | 01/01/70 00:00 | |
| What? The hint to have a look at datasheet? | 01/01/70 00:00 | |
| OK I added that, too | 01/01/70 00:00 | |
| And this FAQ | 01/01/70 00:00 | |
| try this | 01/01/70 00:00 | |
| Rather useless | 01/01/70 00:00 | |
| Re-Kai Klaas | 01/01/70 00:00 | |
LED connection | 01/01/70 00:00 |