Keypad is fine LCD still trouble. I have more details.

Started by cubddh2003 in 68HC1214 years ago 3 replies

For my LCD, I tie the contrast brightness pin 3 to ground. Im pretty sure this is fine. I know all my signals are connected...

For my LCD, I tie the contrast brightness pin 3 to ground. Im pretty sure this is fine. I know all my signals are connected properly. When i write a character to the screen, I get a dark block. IF i write 2 characters i get 2 dark blocks. ect. It is 2x16 and i always have 1 line


problem with graphical lcd

Started by eng_mohamedelkordy in 68HC1213 years ago 1 reply

i'm using CME-12BC32 and i want to output my results as bar charts on a 128*64 pixel "Graphical LCD" but i can't. i want to know to...

i'm using CME-12BC32 and i want to output my results as bar charts on a 128*64 pixel "Graphical LCD" but i can't. i want to know to what ports should i connect the data pins and control ones. please don't tell me to connect it to port S,P (when i do so the key pad doesn't work)also when i connect it to port B the kit hanged.


OT: Small LCD display to interface with HC12

Started by Erik Blake 68HC12 in 68HC1215 years ago 10 replies

Perhaps someone can help... I'm looking for a small (max 0.5" wide - a packaging issue) 7-segment LCD display module that is...

Perhaps someone can help... I'm looking for a small (max 0.5" wide - a packaging issue) 7-segment LCD display module that is relatively easy to interface with an HC12. Ideally, it would have a serial interface, and 4 full characters plus sign. At a minimum, I only want


TLCD Bean and the C32

Started by hc08jb8 in 68HC1214 years ago 3 replies

Hello Folks I am using the C32's PORTT to connect to a 16x2 Hitachi based LCD, I use CW 3.0 with the ProcExpert's TLCD bean. ...

Hello Folks I am using the C32's PORTT to connect to a 16x2 Hitachi based LCD, I use CW 3.0 with the ProcExpert's TLCD bean. When I hook up the LCD to PORTT in the following manner, it fails (no display at all):- PT0 PT1 PT2 PT3 PT4 PT5 PT6 PT7 RS


Connecting external RAM & LCD to the 9S12DP256

Started by m_bernier in 68HC1215 years ago 1 reply

Hi, I looked through a lot of application notes from Motorola (AN2287 & AN2408) but i have no clear answer on how to use the...

Hi, I looked through a lot of application notes from Motorola (AN2287 & AN2408) but i have no clear answer on how to use the external bus. I want to use expanded narrow mode (8 bit data) to interface a external SRAM & LCD controller (T6963). I need the intern


Display float/double on LCD

Started by neoalosh in 68HC1213 years ago 7 replies

Hi guys, i'm trying to multiply 53e-7 * 20 and display it on an interfaced LCD. i'm using ICC12 to compile my program. In Project-> ...

Hi guys, i'm trying to multiply 53e-7 * 20 and display it on an interfaced LCD. i'm using ICC12 to compile my program. In Project-> options i set PRINTF version to FLOAT. the line i'm using to produce the result is: sprintf(tmpstr1,"%2.8f",period_count*CYCLE_TIME); where unsigned int period_count = 20; and float CYCLE_TIME = 53


Problem to display integer on LCD

Started by folg...@yahoo.com in 68HC129 years ago 6 replies

Hello, I have a problem to display an integer on a LCD. I convert the integer into a string. However, this apparently does not seem to work. The...

Hello, I have a problem to display an integer on a LCD. I convert the integer into a string. However, this apparently does not seem to work. The values are not displayed properly. Sometimes the value is shon rigt, sometimes any other characters are shown and sometimes the programm stops durig the conversion from int into a string. The Integer takes values from 0 to 255. Maybe somebody can h...


HCS12 SCI Flash Programming Help

Started by jssimbe in 68HC129 years ago 1 reply

I'm using and HCS12 with icc12 compiler. I'm using SCI1 to communicate to a touch screen LCD. This program loads the LCD GUI. When I try...

I'm using and HCS12 with icc12 compiler. I'm using SCI1 to communicate to a touch screen LCD. This program loads the LCD GUI. When I try loading the program into flash, it doesn't work. When I'm not using flash, the program works fine and GUI is loaded on the screen. When I flash the board, I include the vectors_dp256 file and set the abs_address to 0xef80. Any help would be greatly apprecia...


Displaying a Float data type on HD44780 LCD

Started by neoalosh in 68HC1213 years ago 6 replies

Hello Everyone, i wanted to ask for advice on how to display a Float or an integer data type on a HD44780 LCD connected to the HC12. I'm ...

Hello Everyone, i wanted to ask for advice on how to display a Float or an integer data type on a HD44780 LCD connected to the HC12. I'm using ImageCraft C compiler. I'm able to display char data types easily, but i'm having trouble finding a way to display a different data type. Any suggestions???


I need help!!!!

Started by ahkhibess in 68HC1213 years ago 3 replies

hi I want to know how can I use a graphic LCD screen with the 68hc12 , I wonna to plot it is output on this screen , I don't know what...

hi I want to know how can I use a graphic LCD screen with the 68hc12 , I wonna to plot it is output on this screen , I don't know what should I buy , or what type of screen can I use , so anyone have an experience in that field please help me!! thanks ah.kh.


help graphic lcd

Started by yel1232003 in 68HC1214 years ago 1 reply

Hello: I am working with display, I have a great problem I cannot visualize nothing in the screen, envio the program in asm for if...

Hello: I am working with display, I have a great problem I cannot visualize nothing in the screen, envio the program in asm for if you could hechar a look to him and orient to me in where I am being mistaken since I do not have experience with these thank you very much lcds


Can someone please tell me whats wrong with my code, please!

Started by gogosgeorge in 68HC1213 years ago 6 replies

Hi, Im really pulling out my hair at the moment. Im using that info from the weblink about interfacing a LCD module, but...

Hi, Im really pulling out my hair at the moment. Im using that info from the weblink about interfacing a LCD module, but STILL cant get it to work properly. I was hoping someone out there may be able to have a brief look at my code and tell me if they can see anythin


please help me

Started by Maged in 68HC1213 years ago

hi for all i make project using 68hc12 with board(cme12b/bc) and this is my first time to treat with microcontrollers because it's not...

hi for all i make project using 68hc12 with board(cme12b/bc) and this is my first time to treat with microcontrollers because it's not my field and i now need a program using assembly to interface LCD(DMC-20434) and Keypad(SERIES 96) please anyone can help me and send these programs to me or send brief notes in them to this mail ash_power2005@ash


Executing an event at regular interval

Started by nrmlguru in 68HC1213 years ago

Hello, Thanx alot for helping me in counting pulses from an external encoder.... Now I want to display it at regular...

Hello, Thanx alot for helping me in counting pulses from an external encoder.... Now I want to display it at regular intervals on the LCD panel. Say every 2 seconds display should update the speed. Can i use RTI for this? if so how it can be used? Please guide me in this regard. Thanx in advance


kit

Started by mohamed elramly in 68HC1213 years ago 1 reply

hi iwant to know the prices of 68HC12 IC & kits and graghical lcd woks with 68HC12 thank you ...

hi iwant to know the prices of 68HC12 IC & kits and graghical lcd woks with 68HC12 thank you --------------------------------- Yahoo! Personals Let fate take it's course directly to your email. See who's waiting for you Yahoo! Personals


Help Needed!

Started by onterrybell in 68HC1214 years ago 2 replies

I am having problems displaying the output voltage onto the lcd of the HC12, so i was wondering if anyone could take a look at my...

I am having problems displaying the output voltage onto the lcd of the HC12, so i was wondering if anyone could take a look at my code and see what i am doing wrong. The program is attempting to run a stepper motor off of a voltage range of 0 to 12 volts which has been scaled dow


HC12 Potentiometer

Started by billyboy_2345 in 68HC1213 years ago 3 replies

Hey everyone Im trying to program a HC12 using ImageCraft C to display a rotating graphical symbol or shape on the top line of the LCD (2...

Hey everyone Im trying to program a HC12 using ImageCraft C to display a rotating graphical symbol or shape on the top line of the LCD (2 * 8), with the rotation speed being set by the Front Panel (ADC) potentiometer. Im having some trouble getting into it. Would anyone have any code examples that would point me in the right direction? It would be a


Please Help...Programming Assitance Needed with Dragon12

Started by b_scheibe in 68HC129 years ago 7 replies

I am very new to programming/HC12 so please bare with me. The code i am currently dealing with is something my professor made available so...

I am very new to programming/HC12 so please bare with me. The code i am currently dealing with is something my professor made available so that i can modify it. I am trying to run a heater using the Dragon 12 with a relay hooked up between the two. I already have a thermistor set up on the board with temperature being displayed to the LCD. I am wanting the heater to turn on when the ...


Re: Please Help...Programming Assitance Needed with Dragon12

Started by Mich...@oit.edu in 68HC129 years ago

I am very new to programming/HC12 so please bare with me. The code i > am currently dealing with is something my professor made available...

I am very new to programming/HC12 so please bare with me. The code i > am currently dealing with is something my professor made available so > that i can modify it. I am trying to run a heater using the Dragon 12 > with a relay hooked up between the two. I already have a thermistor > set up on the board with temperature being displayed to the LCD. I am > wanting the heater to turn on


Need Help!

Started by onterrybell in 68HC1214 years ago 1 reply

Let me explain this from the top. I know the answer may be simple and i should get it but i am having difficulty with my logic....

Let me explain this from the top. I know the answer may be simple and i should get it but i am having difficulty with my logic. Alright the problem that i am having is with my C code for my interfacing with the 681c12 LCD. The problem is that i am trying to configure my code in a