| ??? 09/08/09 20:56 Read: times |
#168806 - the analysis is fine... Responding to: ???'s previous message |
Richard Erlacher said:
To increase your confidence, you might write a string of different values all of which have a one in the P0.0 position.[...] ... and more similar tests could be devised; but it's faster to beep through the pins with a continuity checker. Jan |
| Topic | Author | Date |
| hd44780 16x2 lcd some letters display as other letters | 01/01/70 00:00 | |
| How fast is your 8051? | 01/01/70 00:00 | |
| speed | 01/01/70 00:00 | |
| incomplete init, or some hardware issue | 01/01/70 00:00 | |
| Looks like short between D0 and GND | 01/01/70 00:00 | |
| Pullup on D0 P0 | 01/01/70 00:00 | |
| Debug Tip: Always look for patterns! | 01/01/70 00:00 | |
| Oscilloscope | 01/01/70 00:00 | |
| will check D0 | 01/01/70 00:00 | |
| It could simply be open ... | 01/01/70 00:00 | |
| the analysis is fine... | 01/01/70 00:00 | |
It's easier if he has one ... | 01/01/70 00:00 |