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DALI transceiver not working

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akshaybhavsar

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Hi,

I am getting severe problem in testing DALI transceiver which we have designed as per AN1465 application note from microchip you can find it on below URL.I am using PIC18F4550 controller for generating DALI commands and interfaced DALI trasceiver with it.



https://www.microchip.com/wwwAppNotes/AppNotes.aspx?appnote=en559653



I am sending command to DALI transceiver but same command is reflected back on Rx pin.As usual,DALI Transmitter and receiver are supposed to be isolated from each other.

Please help me out.



Regards,

Akshay.
 

What is your problem? All tx data will be relfected the same way to rx. This is how this interface works. You should ignore/verify data that you sending.
 

Hi,

I assume the design of the application note does work.

So: What´s the difference between the Application note and your design?
Clock source, clock frequency, power supply, PCB layout, reset source, I/O configuration, code...?

Klaus

Added:
"severe problems" is not descriptive and therefore useless.
Imagine: I have severe problems to visit my grandmother. Because my grandmother is dead, or does she live far away, or mabe I don´t have the money, or I´m in prison....

--> give a more detailed description of what you expect and what you see instead.
 

Easyrider83 said:
What is your problem? All tx data will be relfected the same way to rx. This is how this interface works. You should ignore/verify data that you sending.
Click to expand...

Why is it that much complicated.If status of any one of the line changes then others also changes.

- - - Updated - - -

None of the application note mentions that Rx line changes if Tx lines changes.
 

Hi,

Why is it that much complicated
Click to expand...
What is complicated with ignoring Rx line?
ignore = do nothing.

Klaus
 

If possible could me please give me reference material where these things are mentioned.
 

KlausST said:
Hi,

.
Imagine: I have severe problems to visit my grandmother. Because my grandmother is dead, or does she live far away, or mabe I don´t have the money, or I´m in prison....

.
Click to expand...

:-D :-D :-D
"The ability to accurately describe a problem gets you halfway to the solution"

I don't remember who wrote this quote, but it is very true.
 

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