Search found 64 matches

But 18F4685's PORTD pins are not TTL. its ST(Schmitt Trigger)

OK. I made a communication between two PIC by RS485. But i get %30 incorrect data and %70 correct data. I can't understand why i am getting %30 incorrec data.

So what can be max. cable length betwe ...

Can i make buffer circuits with Rail to Rail 5MHz MCP6284?

So what do you think about "Shift Registers" for this job ? Can i do Parallel to Serial and Serial to Parallel ?

I looked RS485. But i can't learn totally. I get incorrect sometimes. I can't set a good communication system. So i haven't got enough times for learn RS485. Now please tell me should i use buffer?

Finally i did it Smile

I made a PCB board for PortD & T6963C application so now everyhing okey. Problem was in my breadboard. Frustrating. I lost my time but i did it. Thank you and i am sorry for ...

Ok. I ordered new GLCDs (240x128). It will come monday. when arrives my orders. I will take picture of my hardware with my codes (PORTB and PORTD versions). Thank you for your help

ARRRGH.... ISIS !!!

When posting you MUST tell us if you're using REAL HARDWARE or defective simulator called ISIS/Proteus....

No wonder it 'doesn't work', it isn't REAL hardware.

ISIS.Proteu ...

hmm.. another question

Did you have it working on PORT B at all THEN change to PORT D?

If possible, I'd start with the 'default' of using PORT B.

Jay

My code working very well with PortB. ...

hmm....

from your code...
first line in main()
...
setup_psp(TRUE); // PSP birimi devre dışı
...

The Parallel Slave Port is on PORTD so you do NOT want to enable it(true).

has ...

my GLCD is Newhaven NHD-240128WG-ATFH-VZ#

http://www.newhavendisplay.com/specs/NHD-240128WG-ATFH-VZ.pdf

i changed like this char deger_str[10];

Hello,
I am still can't solve this problem. Please help me. When i am using PORTD (changed everything in T6963c library for using PORTD). When system turn on on GLCD shows irregular black spots. What ...

Hello,

I am still trying RS485 communication and i need to change 4 MHz crystal to 20 MHz. System working with 4MHz crystal but when i change with 20 MHz PIC not working. There isn't any image on G ...

thank you. I saw different tables for BRGH=1 and BRGH=0. What is this?

I am using RS485 communication. What should be baudrate value for 20 MHz crystal frequency ? Can you give a formula or table/chart?