WebMar 31, 2008 · it usually means you did something wrong if your output stuck vcc/gnd. Not necssary. In some cases, you have e. g. a chip enable, that is permantly active in a design. Then you get the warning. With Quartus, there are exactly two warnings for outputs: 1. Web"shorting" an input pin with VCC or GND is what you do with a button or switch anyway. The resistor in that case is used to hold the pin in the opposite direction when the button isn't …

DECEMBER 2011 Resistor-ProgrammableTemperature Switch …

WebMay 28, 2024 · So basically there is a few unknown pins on a PCB circuit. The guy first used a multimeter to probe the pin against GND and measured a resistance value of 0 ohm. … WebUsing GPIO0, GPIO2 and GPIO15 as Outputs. As noted above, these pins will already have a resistor connected to either VCC (GPIO0 and GPIO2) or GND for GPIO15. This determines how any external device, like a relay or led+resistor, must be connected. For GPIO0 and GPIO2, an external relay must be connected between VCC and the pin so … thiriet marne

Experiment: Debugging Circuits - University of California, …

The most common method of ensuring that the inputs of digital logic gates and circuits can not self-bias and float about is to either connect the unused pins directly to ground (0V) for a constant low “0” input, (OR and NOR gates) … See more All digital logic gates, circuits and micro-controllers are limited not only by their operating voltage, but in the current sinking and sourcing ability of each input pin. Digital logic circuits operate using two binary states which … See more Thus far we have seen that we can use either a pull-up resistor or a pull-down resistor to control the voltage level of a logic gate. But we can also use pull-up resistors on the output of a gate to allow different gate … See more Two TTL 74LS00 NAND Gates along with a single-pole double-throw switch are to be used to make a simple Set-Rest bistable flip-flop. … See more A Pull-down resistorworks in the same way as the previous pull-up resistor, except this time the logic gates input is tied to ground, logic level “0” (LOW) or it may go HIGH by the operation of a mechanical switch. … See more WebNote: This pin should be connected to either “VCC” or “GND”. MODE1 MODE0 Output Channels Disable channel 1 1 1200 - 1 0 1152 OUT[577] ~ OUT[624] ... The channel output returns to normal status as soon as OE go back to “L”. 5.2. Device power supply The EK73215 must be used by the following conditions. * VGH – VGL = 40V (max.) thiriet nancy