Eight engineers for the schematic design, really enough!

Eight engineers are discussing the Schematic Design Specification. It was still very harmonious before the last second! ●

When the next second discusses how to draw the schematic, everyone's opinions are very different!

Similar to "Does soy milk is sweet or salty?", "Is there a date in the dumplings or a meat?" This is the problem!

â–¼The first big difference: the representation of the resistance!

Are you the first or the second? Is the box or the fold line in the middle? How big is the box?

The scene was chaotic and immediately divided into N factions.

The ordinary resistors are like this. When so many kinds of resistors appeared, I was messy at the time.

â–¼ The second major difference: the representation of the polarity of the capacitor!

The picture below is amazing! One picture shows three ways, and there are several kinds of schematic diagrams in the world's top 500. .

There are enough types of capacitors, which makes people feel bad when they are selected. The way capacitors are expressed is just as bad.

â–¼The third major difference: the hierarchy map is divided

The right side of the debate: to the level map, the level map is conducive to the schematic as a modular sharing.

Counterparts: Don't want a level map. The level map brings unnecessary trouble. After separating the schematic, it is easy to ignore some problems and let me not feel at ease.

â–¼The fourth major difference: differential pair representation: +, - N, P

Pin description: standard N, P, network name +, -

485: Take me to play!

â–¼The fifth major difference: power and ground representation:

Is the positive power supply plus +? +5V VS 5V0

Representation of the decimal point: 5.0V, 3.3V VS 5V0 3V3

Digital analog separation: DVDD5V0 AVDD3V3 VS 5V0_DVDD 3V3_ AVDD

â–¼ sixth big difference: the pressure value of the capacitor, need to fill in the Value?

â–¼ seventh big difference: 100nF or 0.1uF or 104

â–¼The eighth major difference: the representation of magnetic beads

By the way, is the magnetic bead nominal LB or FB?

More hate, the magnetic beads are directly drawn into the inductor, the bit number is called LX.

â–¼ The ninth major difference: TX, RX network name, how to calculate?

Who is the main device?

Some people say that CPU is the main, MCU, FPGA, DSP are slave devices;

So what about FPGAs and DSPs?

Have you died on this many times?

â–¼ Tenth Divergence: Where and what direction the bit number and Value are placed on the device.

Once, it was late to work overtime. I asked the old grandson to change the drawings and then go, then we worked overtime until 12 o'clock in the evening. His wife came by phone, and the two felt that they were quarreling on the phone. I said, "Let's go first, I will change!" He said: "Well, I will go home first, but you don't want to move my drawings. I will come over tomorrow morning."

Then he left first. . . .

The next morning, in the morning, he asked me: "You moved me!"

I said, "No!"

He said: "You must move my schematic, my capacitors are placed on the left, how do these get to the right!!!!!"

I. . . . . .

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