Hi all, I am a new member but I am not a programmer, have been in electronics all my working life mainly in RF.
I am refurbishing/updating some older 2way radios for ham use and need a method of channel changing. Basically I need a replacement for 2 BCD thumbwheel switches. I have rotary switches that have 2 sets of contacts, 1 makes and breaks in one direction and the other makes and breaks in the other direction, these will need to be debounced. I want to use these as the input device. On the other end I need 2 BCD outputs to select the eprom outputs selectable to be active high or active low. My next requirement if possible would be to have each of the BCD outputs drive a 7 segment display and be independant of the active state of the BCD outputs.
I would like to use a PIC if possible (16F84 or similar) I have a pic programmer and have programmed a number of them from someone elses HEX files.
Can anyone point me to someone who may have done this before, I imagine it would have been done many times but it is beyond my programming capabilities. I can visualise what needs to happen but what happens inside the chip no way, I'm lost.
TIA.
Don....
I am refurbishing/updating some older 2way radios for ham use and need a method of channel changing. Basically I need a replacement for 2 BCD thumbwheel switches. I have rotary switches that have 2 sets of contacts, 1 makes and breaks in one direction and the other makes and breaks in the other direction, these will need to be debounced. I want to use these as the input device. On the other end I need 2 BCD outputs to select the eprom outputs selectable to be active high or active low. My next requirement if possible would be to have each of the BCD outputs drive a 7 segment display and be independant of the active state of the BCD outputs.
I would like to use a PIC if possible (16F84 or similar) I have a pic programmer and have programmed a number of them from someone elses HEX files.
Can anyone point me to someone who may have done this before, I imagine it would have been done many times but it is beyond my programming capabilities. I can visualise what needs to happen but what happens inside the chip no way, I'm lost.
TIA.
Don....
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