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Re: I2C Problem
Hi!
You can put the master to "enumerate" the available slaves on the bus, by sending write address transactions (R/W bit is 0).
The address field will take the all values in the bit format (7bit or 10bit addressing) except protocol reserved addresses.
The slaves on the bus...
make a code library
Hi everybody!
I'm trying to make a stack for a specific protocol and I would like to place all my fuctions into a library.
From that point on an user application can use my low level functions from this library.
My target is a midrange PIC Mcu. Compiler is picc from Hitec...
Hello all!
I want to make a galvanic isolation interface using an optocoupler!
The problem is I need to enssure a 20Mhz freq of data.
I couldn't find such a high speed opto?
Does anyone have a clue?
What about an alternate solution?
Re: How to do the ac stability simulation of bandgap circuit
I would try for instance to feed the circuit with a modulated clock(predifined values ... let's say a triangle modulator of x Mhz),
and at the output I would aplly a FFT and see if the can observe the same values.
Best regards!
voltage divider 3.3 2.5
Hello all!
I want to conevert a ttl level signal to 3.3 or 2.5 V.
I was wondering if a basic voltage divider could do the job?
Is it really necessary a smart Ic for this conversion?
Best regards!
Hello all!
I was wondering how can one decide whether a line is an input or an output.
I want to create a ptotection interface for several DIO lines. I would need to decide the sense.
Some current comparators(current mirrors) could do the job? So I wiil be able to
detect the poalrity of...
esd ttl
Hello all!
I'm working on a protection circuit for a pxi interface.
Basically I have to isolate the DUT from the command circuit through a pcb
that protects galvanic/ against Esd/ against UnderVolt-Overvoltage.
Now I've chosen an optocoupler for the galvanic isolation.
But I need to...
Hello all!
I am currently working on a protection circuit for a pxi interface and I need
an under/overvoltge protection circuit for ttl Dio lines.
I am open to suggestions/comments or links toward related application notes!
Best regards!
Protection circuitry
Hello all!
I need some guidins about a protection interface for TTL signals!
Can anyone give me a hint where I can find some application notes
regrarding this topic?
Best regards!
Hy!
Just take a look on the data sheet of the Mos and make sure that it doesn't have a built-in diode between drain and source, for fly-back voltage purpose.
It would be futile to put another one in the circuit!
Try this : use a dc motor from a 5 inch old floppy disk unit. 4 phase unipolar. It is very easy to drive. You can use any npn tansistors (like bc, bd) with diodes connected to cut the inverted electomagnetic field when motor it's switching off. Having in mind the order of phases, it's just a...
Agp malfunction
Hello!
Can anyone give me a hint about this :
My graphics card is working only with 2x agp factor(instead of 4x)!
Motherboard Gigabyte 7DXE: 4x
Graph. card Asus 9180SE: 8x, latest drivers.
Now this could be interesting : in the past it used to work with 4x factor, until my...
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