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Hi,
What - in values - is the exact issue?
You need a scope to verify it. And for sure you might see a higher value because of noise and hum .. but you might see lower value because of too weak charging current or too high capacitive coupling from gate.
You need to go into details if you...
Hi,
In short: It´s still a mystery to me what you want to teach us.
I asked a couple of questions (delimited with a question mark). Did you answer a single one .. with a clear statement?
There is only one alsmost complete sentence of you:
But what do you (or should we) focus on?
I can...
Hi,
The "frequency divider" problem is as old as digital electronics.
Thus - since decades (long before FPGAs were invented) - there are many documents, solutions, explanations, even videos ....
Did you at least go through one of them?
If yes:
* post a link to it.
* show your design, your...
Hi,
I expect the informations to be written in the datasheet .. or any additional documents provided by the manufacturer.
Did you read the datasheet?
Did you look for other documents maybe about "security" or "programming" .. or similar topics?
Klaus
Hi,
"integer" and "binary" are two different things.
--> INTEGER is a data format. Let´s say "one byte unsigned integer" = uint8
other examples: float, char, int32 ...
The information of this uint8 is stored in 1 byte = 8 bits.
--> BINARY is just a form of representation. ... how a value is...
Hi,
This are only vague informations. Nothing we can work with.
If you need a useful answer, provide detailed informations.
Your PCB could be
* a temperature measurement unit with expected accuracy of 0.01°C
* a BLDC motor control for 3 x 500A
* a GHz transmitter
* a low noise Audio...
Hi,
If set up correctly the DMA read takes zero processing power for all 500 x 2 bytes.
You never do a "WHILE(spi_does_something)"
Do you understand the basic concept of DMA?
I don´t have example codes, but there is plenty in the internet. ... with explanations, even videos.
For sure you are...
Hi,
I already answered: Use DMA. This minimizes processing power. No need to wait for data being transferred.
What? Now you have three in parallel? How? You never mentioned this before. No schematic either.
What other imortant informations do you hide?
For me speaking: I will continue the...
Hi,
I don´t get it.
What exact information can we get from these documents
* that is not written in the thread already?
* or that is an counter-argument to what is written in the thread?
The title of the one document is "Barkhausen Criterion and Another Necessary Condition for Steady State...
Hi,
I´m doing some math for you (you should have done on youe own)
110mA x 5.8V = 0.64W
The case seems to be big enough to handle 0.64W. And if operated according the datasheet I expect it to take several minutes to heat up.
You are free to add a heatsink to keep temperature low.
From your...
I have no clue what you refer to. I can find nothing about "homework", "attach...", "page 15". WTH are you talking about?
... already given.
Thanks, this really is useful information. Never heard about it, learned something new.
Is it something you would recommend for the OP?
Klaus
Hi,
* define your signal you want to measure
* define your signals to protect against
* define the limits of the RPi
* then do a search for protection devices / protection circuits according the above specifications.
Example:
If you want to protect against ESD, according HBM then you will...
Hi,
I´m not familiar with your STM .. thus I don´t know all features.
With other microcontrollers I did it this way:
* Set up a buffer for 500x 2 bytes to store the SPI_receive results
* set up the SPI for the SS to be controlled "manually" (i.e. not by software), and all other parameters for...
Hi,
if I´m not mistaken, NEC sends one code on key_down ... and does repeat a different code as long as the key is pressed.
So for each key you have to know both codes.
Klaus
Hi,
Fair enough.
But a beep sound is a rather coarse way to do a measurement. It follows no standard. Each multimeter has it´s own way to measure and it´s own threshold.
Some test with 10mA, others with 0.1mA, some use a resistor as current limiter... In best case it is written in the...
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