| ??? 11/24/05 12:47 Modified: 11/24/05 12:59 Read: times |
#104110 - either i or o Responding to: ???'s previous message |
using a pin as o/p and then CLR P1.5 ; start motor testing it as an input is not recomanded JNB P1.5,HERE1 explaination: if you read the bible, even if you set the port latch you are not guarunteed to read the one at the port pin, thats because the input of the driven device may be sinking some current from the ports high impedence source, and even if your port latch is set you can read the nett voltage at pin as zero. you are reading the pin while you are setting the latch. Abee |
| Topic | Author | Date |
| C2051 & Magnetic pulse generator | 01/01/70 00:00 | |
| either i or o | 01/01/70 00:00 | |
| hmmm..but | 01/01/70 00:00 | |
| Debug suggestions | 01/01/70 00:00 | |
| Software Debounce | 01/01/70 00:00 | |
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| This could be the reason... | 01/01/70 00:00 | |
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| why the UG? | 01/01/70 00:00 | |
| pc scopes | 01/01/70 00:00 | |
| could you | 01/01/70 00:00 | |
| What tells the oscilloscope? | 01/01/70 00:00 | |
| Build simple test tools to fix your unit | 01/01/70 00:00 | |
| Excessive rise times during startup? | 01/01/70 00:00 | |
| Good, but even better would be | 01/01/70 00:00 | |
| Full story | 01/01/70 00:00 | |
| thanks, so can I... | 01/01/70 00:00 | |
| yes, if and only if the channel A | 01/01/70 00:00 | |
| cheerz | 01/01/70 00:00 | |
| Time bomb.. | 01/01/70 00:00 | |
| Perhaps a little explanation? | 01/01/70 00:00 | |
| setting the hysteresis | 01/01/70 00:00 | |
Thank, Erik! | 01/01/70 00:00 |