![]() (With a manual switch, a few microseconds of delay wont be noticed. Wa_cq_url: "/content/www/us/en/docs/programmable/683771/current/internal-weak-pull-up-and-weak-pull. A high pull-up or pull-down resistance along with the capacitance will form a low-pass filter and it wont pull-up or down as fast when the switch is open. Contrary to the pull up resistor, you can’t set this up with just the code, you’ll have to use an external resistor. There are control bits (/RBPU & /RDPU) that enable/disable these pull ups. Thus, the default button’s state will be LOW, and when you press it it will become HIGH. On the 18F4550 PORTB and PORTD have internal weak pull ups. Wa_audience: "emtaudience:business/btssbusinesstechnologysolutionspecialist/developer/fpgaengineer", This is another option you can choose, which is also a quite popular one: add a pull down resistor. ![]() Wa_english_title: "Internal Weak Pull-Up and Weak Pull-Down Resistor", ![]() Wa_emtsubject: "emtsubject:design/fpgadesign/embeddedmemory,emtsubject:design/fpgadesign/remotesystemupgrades,emtsubject:design/fpgadesign/externalmemoryinterfaces,emtsubject:design/fpgadesign/clocking,emtsubject:design/fpgadesign/thermalmanagement,emtsubject:design/fpgadesign/signalintegrity", Wa_curated: "curated:donotuseinexternalfilters/recommended", Wa_primarycontenttagging: "primarycontenttagging:intelfpgas/intelprogrammabledevices/intelarria/intelarria10fpgasandsocfpgas,primarycontenttagging:intelfpgas/intelprogrammabledevices",
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