Timeline for Need help with 16F887 and Microchips 44-pin demo board
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| Dec 18, 2011 at 1:40 | vote | accept | Michael | ||
| Dec 15, 2011 at 16:12 | answer | added | Michael | timeline score: 3 | |
| Dec 15, 2011 at 16:11 | history | edited | Michael | CC BY-SA 3.0 |
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| Dec 15, 2011 at 5:48 | history | edited | Michael | CC BY-SA 3.0 |
added 112 characters in body
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| Dec 15, 2011 at 4:50 | history | edited | Michael | CC BY-SA 3.0 |
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| Dec 15, 2011 at 4:49 | comment | added | Michael | You are right, of course. that did work. I will delete that problem from my original thread. | |
| Dec 15, 2011 at 4:28 | comment | added | Chris Stratton | When you remove the connection, does that mean there is nothing connected to the pin? If so, the read value may be indeterminate, unless there's an internal pullup or pulldown resistor or comparable behavior implicit in the design of the input stage. Try putting a resistor (any value between 1K and 10K) between an input pin and VCC, and then touching and removing a wire connecting the input pin to ground. If the program is working, the output you copy it to should change immediately, since in both states the pin is driven rather than left floating. | |
| Dec 15, 2011 at 4:17 | history | edited | Michael | CC BY-SA 3.0 |
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| Dec 15, 2011 at 2:35 | history | edited | Michael | CC BY-SA 3.0 |
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| Dec 15, 2011 at 2:22 | answer | added | Dave.Mech.Eng | timeline score: 0 | |
| Dec 15, 2011 at 2:08 | history | asked | Michael | CC BY-SA 3.0 |