yes,The 3 and 4 pins of the flexible circuit board are connected togetherMy flex cable have pin 3 and 4 shorted and works well
yes,The 3 and 4 pins of the flexible circuit board are connected togetherMy flex cable have pin 3 and 4 shorted and works well
The pull-down resistor keeps the gate of the FET low in the default state, and if there is no resistance, the default state of the gate of the FET is high-impedance, which may cause the FET to be turned on until it burns大神,那source 和gate的电阻有什么作用2.2k。如果我们用mosfet改需要含上那电阻吗
It is capacitorsJank ultra pro max. The mosfet is not the same as the officially known supported one. Incidentally, are the tiny things resistors or capacitors? Coz Im measuring 160 ohms or so on one of them
The pull-down resistor keeps the gate of the FET low in the default state, and if there is no resistance, the default state of the gate of the FET is high-impedance, which may cause the FET to be turned on until it burns
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It is capacitors
thanks for your explanation, it's all clear as crystal.The pull-down resistor keeps the gate of the FET low in the default state, and if there is no resistance, the default state of the gate of the FET is high-impedance, which may cause the FET to be turned on until it burns
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It is capacitors
Use a multimeter to measure whether the 1V power supply of the CPU has been shorted to GND, if it is short-circuited, it is a fault, and under normal circumstances, there should be a resistance value of several hundred ohmsGot it. Is there a way to know i havent ruined anything yet?
The resistance value of the pull-down resistor is about 1~10KΩ.thanks for your explanation, it's all clear as crystal.
Are there specific points i can test that at? I'm reading 15 or so ohms across the capacitor with the mosfet on.Use a multimeter to measure whether the 1V power supply of the CPU has been shorted to GND, if it is short-circuited, it is a fault, and under normal circumstances, there should be a resistance value of several hundred ohms
The easiest way is to measure whether the resistance across the capacitor is 0Ω, or use a multimeter buzzer to see if it ringsAre there specific points i can test that at? I'm reading 15 or so ohms across the capacitor with the mosfet on.
Also, when soldering the wires for dat0 et al; it seems like there are pairs of them. Is it okay to solder both, or should only one of those be soldered?
The two contacts are internally connected/Okay, the capacitor probably isnt shorted. I have a switch lite btw. What i mean by pairs is that there are two contacts highlighted for D0, CMD and CLK in the pinout_lite diagram.
Both connection points will doSo should I be soldering only the left side of these pads, or both?
ok master,please accept my best thanksUse a multimeter to measure whether the 1V power supply of the CPU has been shorted to GND, if it is short-circuited, it is a fault, and under normal circumstances, there should be a resistance value of several hundred ohms
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The resistance value of the pull-down resistor is about 1~10KΩ.
You can buy an rp2040-zero and flex ribbon cables from aliexpresswhere do i buy this from
Ahhh bugger, yes!!