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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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13th May 2008, 08:49 AM
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| Experienced Member   |  PORTA output problem Hello all, I'm facing a problem which PORTA is not working properly. Can anyone tell me if PORTA,4 would work as output if I have an external crystal and TMR1 working? I've made TRISA b'00001111', I suppose I would still be able to use RA4 as output? But still there isn't any voltage coming out from RA4 after I turned it on. RA6,7 is used for external crystal. I've uploaded the full code if anyone wants to check it out. |
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13th May 2008, 08:51 AM
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| Super Moderator   | A4 is an open-collector output (read the datasheet), you need a pullup resistor to use it as a normal output. |
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13th May 2008, 10:47 AM
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| Experienced Member | thanks, got it now. |
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