Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
spi max distance
Paul ill look into this straight away, i have used some mA transmitters from TI before ill have a look at these and see what freq i can work with.
Ill also check out the CAN SPi devices
Thanks fo the advice
Chris
distance spi
Paul,
I would certainly like to use CAN bus but only one of the modules im designing has a processer with CAN the remaining modules just have SPI IC's thus no processor. Which meant SPI was the easy way to go forward.
I cannot use a processor on the remaining modules as...
spi bus distance
Guys,
I have up to 16 devices and our software engineers have specified a clock speed of 2MHz although this will most likely change during the development phase.
My environment is potentially very noisy (industrial) which means i must also isolate each SPI interface with...
spi distance
Hi
Im designing 4 cirucit boards, one is a processor module (PIC33F device) the other 3 are for sensor measurments, each has a simple A2D with (SPI) interface.
The circuit boards will be connected directly with a plug and socket arrangement (no wires).
What is the maximum...
Guys
Many thanks for both your replies, i will use IanP suggestion and go with the capacitor and resistor.
Funnily enough when i asked two engineers at work one suggested that all i needed was capacitor and the other believed just the resistor would do :)
Regards
Chris
Hi
I just designed a simple power supply which steps down mains 230V to +15V and -15V, i have rectified, smoothed etc the voltages and all is well.
My only concern is that the secondary voltages are essentially floating with respect to Earth.
I was told i could simply capacitively couple (1nF...
Thanks for the suggestion guys i will use these ideas and look around for some more material.
Question for the edge:
What wattage of zener diode do you use for your circut?
The pullup resistor before the RC is this a very high value? (100k)
I currently have to design a analogue input circuit that measures 0-10v for an industrial envronment. The 0-10V will be buffered (op-amp) and then low pass filtered (RC) then used as a input to a ADC.
What circuits do people use to protect their inputs from over voltage, voltage spikes, shorts...
All
I just came across this article on how to "Build a complete industrial-ADC interface using a microcontroller and a sigma-delta modulator":
**broken link removed**
Whilst a very interesting article it avoided the the more difficult question of input protection. Transorbs, diodes...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
