Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Recent content by Twisty

  1. T

    Solar Panel reverse polarity protection

    As you have described it then NO your system will not provide reverse polarity protection in the case of battery being connected the wrong way round. If you change the system so that it only switches on the N-MOSFET after checking that: 1) Polarity of both the solar panel and battery are...
  2. T

    [PIC] Completed PIC16F -> HD47780 interface in ASM

    I've completed the coding for my little LCD project now so I am sharing the code back in case any of it is helpful for people in the future. I've tried to squeeze as much as I could into the 4k program memory. It looks up groups of messages and CGRAM sets from tables, displays the messages in...
  3. T

    [PIC] Completed PIC16F -> HD47780 interface in ASM

    Re: Interfacing HD77480 to PIC16f648A-I/P I have one remaining little mystery relating to the snippet of code directly below. After doing 'MOVWF PCL' it appears that a 'RETURN' is being invoked and kicking the thread into the previous block. I bodged a fix by implementing the MOVWF using a...
  4. T

    [PIC] Completed PIC16F -> HD47780 interface in ASM

    Re: Interfacing HD77480 to PIC16f648A-I/P This was the missing link. I'm now connecting LCD RS to RA0 and it is actually working! I am so happy. After tweaking a few things (I was generally losing the plot) my working ASM looks like the below. The C code, however, is still not working I'll...
  5. T

    [PIC] Completed PIC16F -> HD47780 interface in ASM

    Re: Interfacing HD77480 to PIC16f648A-I/P Thanks for the prompt replies, I will look into the bank macros selection. I much prefer C but used assembly as there appears to be very little code around for PIC6F in C, is it fine compiling C code for the PIC16F? Sounds like reading data back from...
  6. T

    [PIC] Completed PIC16F -> HD47780 interface in ASM

    Interfacing HD77480 to PIC16f648A-I/P Please help. I appreciate this is a very newbie post, however I have spent a long time trying to fix this myself and as I am now at the end of my tether and really would appreciate some guidance. I've pasted the code below and would be thankful for any...

Part and Inventory Search

Back
Top