|
Re: 18F4550 running 3.3V (serin2) and 16F877 running 5v (serout2), is possible?
Gusse,
You was rigth! My problem was grounding between PICs. My wiring was wrong! Sorry!
Using a 1k to 10k resistor between Tx(5v) and Rx(3,3v) it is working fine.
Then, I put 2 diodes without resistor and doesn't work. I removed 1 diode and works fine. Then I puted a 10k + 1n4007 and works fine too.
I tried with 2 diodes 1N4148 but its fail. Using just 1 signal diode fail also.
Now my circuit is 10k resistor in serie with 1 diode 1N4007! Do you think it is ok?
Thanks again!
|
Re: 18F4550 running 3.3V (serin2) and 16F877 running 5v (serout2), is possible?
I suggest to remove the diodes and leave the 10k, hence add a 20k resistor from the 3.3V input pin to ground, in order to create 1/3 divider network.
Cheers
Al.
Last edited by aratti; - 27th January 2014 at 12:52.
All progress began with an idea
|
Re: 18F4550 running 3.3V (serin2) and 16F877 running 5v (serout2), is possible?
Aratti,
I removed the diode and used your suggestion with sucess. Divider network was the better solution!
Thanks
Members who have read this thread : 0You do not have permission to view the list of names.
Posting Permissions
Bookmarks