petonx
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Posts posted by petonx
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No, they dont changes. Vpp always enabled(then 74c14 are on their places).
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I have a problem with my PIC burner. It detecting by P18pp, but Vdd & Vpp leds dnot changes, then I click Vdd/Vpp on/off buttons. Vpp(red) led is always ON. I use 74c14 instead 74hc14, is it my problem? they differ? see photo.
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Can I use hd44780 based LCD?(I haven't any other) Where connects CS pins?(are they important?) If I need a special driver?
problem with PIC burner
in Testing/Troubleshooting
Posted
Solution found :D I replace 74c14 with our Russian 555TL2 :tongue: . It works excellent!