| ??? 02/22/05 00:59 Read: times |
#88104 - Both also I tried before Responding to: ???'s previous message |
a) col -- Vcc and row -- Gnd
Actually between col and Vcc there is 10k Resistor so is Vcc - 10K Ohm - Col Pins and Ports node, these are the nodes. for Row, I connected to Gnd. Once. b) Col -- Vcc and row -- port pin Vcc - 10K Ohm - Col Pins and Ports node, these are the nodes. for Row, I connected port What the response I get for 2nd connection is, all key work except 3,6,9,# which is Col 3. Meanwhile, the other keys which is working also takes long time to refresh, within the period if I press then error message will appear. I check and modify my delay subroutine in the program. But That delay in the program is the delay for the word appear on pc screen via Rs232. Thanks. |
| Topic | Author | Date |
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| A suggestion | 01/01/70 00:00 | |
| Commenting - may answer own question! | 01/01/70 00:00 | |
| Port can be spoilt? | 01/01/70 00:00 | |
| please clarify | 01/01/70 00:00 | |
| Both also I tried before | 01/01/70 00:00 | |
| remarks | 01/01/70 00:00 | |
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| eh?? | 01/01/70 00:00 | |
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