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45 Threads found on edaboard.com: hd44780 Pic
Hello, bought pic programer(mikroProg) from mikroElektronika and i have some problems with LCD could you help me out? Im using pic16F628A and Hitachi hd44780 LCD. My code in C looks like this : sbit LCD_RS at RA0_bit; sbit LCD_EN at RA1_bit; sbit LCD_D4 at RB0_bit; sbit LCD_D5 at RB1_bit; sbit LCD_D6 at RB2_bit; sbit LCD_D7 at RB3
This is Multiple I2C LCD code. It is written using CCS C Compiler version 5.044. This si tested in Proteus and also Easypic v7 development board with 2 x 20x4 LCDs. LCDs should be hd44780 or compatible. I have used I2C LCDs and I2C LCD modules from Banggood. I will soon post mikroC PRO pic and AVR versions of the code here. With this (...)
I have got my 4x20 LCD working so I can write data to it but I cannot succesfully read the busy flag. This is a 3.3v pic so I am using open drain outputs and 5v tollerant inputs. After scoping the Enable and D7 lines I can see the D7 level is low when it should be reading but my routine (lcd_status) always returns 1. I have been trying all manne
A hd44780 based or compatible LCD display requires a proper amount of time to powerup, initialize and arrive at a known state. If you display resembles the It usually indicates the LCD was not allowe
its a simple lcd 16x02 It's surely hd44780 compatbile, but you should pay attention to the port expander/interface chip shown on the photo in your initial post. It decides if you can use the built-in mikroC libararies or need to write something on your own.
Hi everyone i'm trying to use hd44780-based Character-LCD(4line20character) . I found some material from some forums but couldn't make it. If you check my software steps i appreciate it: 1st: I designate port configurations #define RS PORTA,0 #define RW PORTA,1 #define E PORTA,2 #define LCD_DATA PORTB #def
I assume you're using an hd44780 based LCD, as I could understand from other posts of yours. Before reading you must enable the pic to read data from the LCD data pins, so change the TRIS registers values to 1 for the LCD pins (except for En, RS, and RW). Then set RW to 1 (READ) - the LCD will return some data on the LCD data pins. In case of 4-
What a union does is let the compiler know that you want to be able to access the same location in memory in more than one way. So, for a simple example, here's how I do this in my hd44780 LCD code: union { struct { unsigned bit0: 1; unsig
//Project: LCD hd44780 Lesson, LCD 16X2 Example //Programmer: Shahrulnizam Mat Rejab //pic: pic16F877A, pic16F887, pic18F4550 //Crystal Frequency: 20MHz //Compiler: HI-TECH C for pic10/12/16 V9.83, pic18 V9.65 //Last Modified: 31 August 2012 //Website: (...)
//Project: GSM Modem Lesson //Programmer: Shahrulnizam Mat Rejab //pic: pic16F877A, pic16F887, pic18F4550 //Crystal Frequency: 20MHz //Compiler: HI-TECH C for pic10/12/16 V9.83, pic18 V9.65 //Last Modified: 8 August 2012 //Website: shahrulnizam.com #define UART #define (...)
If you using C Language, can refer here LCD hd44780. The header here.
The hd44780 chipset offers either 8-bit or 4-bit data I/O, not 16-bit. The interface and coding method is similar to utilizing the device with an 8-bit pic. There are numerous hd44780 compatible LCD libraries available. Are you coding in C or Assembly Language? If C, what compiler are you using? BigDog
You can create header file, it's extension is .h. Then, in the C code, you can include the File Name.h. Ex, code for LCD hd44780, the with the header file. Beginner now, not know how the LCD operation, just use the function/header created by m
LCD Lesson and Header File.
Most LCD's have a common command set, here is a link to some info. hd44780 Commands For formatting Your editor should have an option to use TABS or Spaces. If you convert the tabs to spaces, your indentation will be ok.
Hey guys, I need a little help displaying the time on a hd44780 lcd. Compiling on pic basic Pro. There are two of us having the same issue. Below is the code I used. The display is Time=00:00:00 Date=00:00:00 Any suggestions would be helpful, not very good at these things. I will owe you a burrito if we can get her running.
I should reset power of both pic and LCD to bring LCD back to normal. Does it work? I assume that you are using an industry standard Hitachi hd44780 compatible LCD. The dataheet has detailed instructions how to perform a reset without cycling the LCD power.
Industry standard hd44780 compatible LCD controllers have a TTL level specification. They can work 3.3V with CMOS output signals. On the other hand, pic24F I/Os are 5V tolerant (except for some analog pins), so it has no problem to read e.g. the busy bit from LCD controller. In other words, just connecting the LCD and pic24F should be fine. (...)
If you use hitech c or CCS, drivers for a standard hd44780 compliant LCD are in the install directories of both of them, by drivers I mean sample codes. If you search the forum for "interfacing LCD with 16F877A" I think dozens of thread will come up and in many cased there will be working codes. I remember posting a working code for the same
in JHD162A JHD is the Company Name/etc 162 mean 16x2 but this lcd uses the same controller hd44780