Matrix user forums

I had exactly the same error message when I first tried to id the 16F88. I think I solved it by moving the switch from XTAL to RC. Perhaps the 16F88 doesn't support XTAL mode? Anyway, I also noticed that the red LEDs were running a pattern as if the chip was already running a program. I guess that w...

After initialization and before you send the H, you need a delay of at least 1.55ms. The Clear Display and Home commands take a longer time to execute than any of the others which need around 40us.

John

Hi asa, Looks like I already answered your other message. :lol: I'm sorry but I don't actually know what VHDL is. I'm using PIC18 assembler. If you want the assembler code let me know. The thing with this 4-bit connection is that you have to send the byte in two parts. First the high 4 bits and then...

It sounds like the LCD is running in 4-bit mode on that system. I recently figured out 99% how to program it and with the help of Steve who sent me a code sample I have now got the LCD obeying my every command. Here is the thread that has this information: http://www.matrixmultimedia.com/mmforums/vi...

Thanks Steve, I didn't mean my message to come across as a complaint, more just as a way of sharing what I've learned. There's no one here that I can share this stuff with and I'm sure I'm not alone with that. I must admit I was pretty sure my RCON trick was a hack but I couldn't figure out a better...

I have now had my HP-488 for a couple of days and it's fantastic, but I have suffered the torments of hell trying to get the LCD working properly. Just in case there are other people out there going through the same thing, I'd like to point out a critical piece of information that is missing from bo...

Ben,

Thanks for the clear explanation. I am no longer confused!

John

Ben,

Thanks for the quick reply. Do you know what the manual means when it says there is "no point trying"? Did I completely misunderstand what it was saying? As long as I can use the LCD with a PIC18F2550 I'm in business.

Thanks again,

John

Hi, I'm very impressed with the look of the E-Blocks system and I'm thinking of buying the HP488 as my first PIC programmer. However, before I do, I'd like to clear up some confusion. Regarding the LVP problem involving port B, I understand that if I want to use the LCD from a PIC that uses RB5 in L...