Thanks everybody !!! This forum is awesome

Well, didn't quit so easily... Just put the Delay_ms(100) as the first line of my code. It is NOW that everything work like a dream...always ! So, the final conclusion from this giant thread is : Use a delay in the beginning to stabilize current if you mess with GLCDs !!! :) It was THAT easy after a...

Pity ! Worked again only once, when reprogrammed it stopped working on PortC and D. I quit !!

It is clear now. Sometimes EP2 goes on USB2.0 mode ! The gauge speed difference is obvious. I wonder why that happens.... anyway, I know now, thanks very much !

GOOD HEAVENS !!!! This small delay solved the PORTC and PORTD problem as well !!! Charlie you are a PIC-GOD !!!!! Thanks a very lot !

Now everything is running like a dream !

Thanks a lot isaacn. It seems that sometimes EP2 connects to USB2 mode, rather than 1.1. The slider really goes much faster, and then...errors. I will follow your advice right away. Thanks !

Is there any code out there ? Thanks for the help pizon ! I am now constructing the keypad pcb and need to write the software later.

Thanks very much Charlie ! Excellent idea. Just a Delay_ms(100); did the job nicely

I am using a laptop with 2 USB ports in the back and two on the right side. I think that they are equivalent.

The EP2 used to work fine with top USB speed some days ago but now I have to use low speeds in order to program without errors...do you believe that something is wrong with the board ?

I disconnected the jumpers as you say but nothing happens. Another thing that I have to note here : When the GLCD is configured using PORTB and PORTD, it immediately works fine after the PIC is programmed with PICFlash. However, when I disconnect the power and reconnect it again, it needs a reset be...

This is a good idea. I am using PIC18F452 and I have plenty of pins. I want to build a 4x7 keypad at least so I have to split rows and columns into two different ports. Nevertheless, since the source code of keypad library is not available, I would really appreciate if someone has any piece of code ...

I am using EASYPIC2 ? Do you think that it has a problem ?

The cables connecting EP2 with GLCD are checked over and over,
no problems there. Besides, it works ok with PORTB and D, but
not with C and D.

I don't really know what is going on...maybe I should change
the board.

This is the all code I am using program GLCD; var x,ch, Pos,Lin : byte; begin Keypad_Init(PORTC); GLCD_Init(PORTB,2,1,3,4,6,5,PORTD); // CS1, CS2, RS, RW, RST, EN GLCD_Fill(0); Pos := 0; Lin := 0; while true do begin // Wait for key to be pressed repeat x := Keypad_Read(); until x <> $FF; // Select ...

I am using PicFLASH Programmer v5.0.07.2005 with the newest device driver USB745 v5.0.2.2 I am lately experiencing speed problems. The programmer does not work at full USB speed (USB -> Configure), leading to extensive errors, but works only when I lower the speed to 1/3 of the maximum. Does anyone ...

Hmm, unfortunately it worked only once !!! Using a new blank PIC18F452 I managed to make it work on PORTC and PORTD only once ! When I reprogrammed the PIC for the second time, it stopped working ! Now I can use it only on PORTB and PORTD. Am I missing something ? Should I turn off any special inter...