OT: LCD BIAS understanding

Started by Anonymous in MSP43012 years ago 11 replies
LCD

Hi all, Can anyone explain me what bias means on an lcd module? As far as I understand it it has something to do with the LCD contrast,...

Hi all, Can anyone explain me what bias means on an lcd module? As far as I understand it it has something to do with the LCD contrast, but if that the case than it would not matter how I drive the lcd ?, 1/3 bias or what ever. Unfortunate this is not trough, why?? I?ve written a small test programm and had a lot of looks through sample code on driving LCD?s using the MSP430F413 or


8 bit LCD

Started by mpbwork in MSP4308 years ago 3 replies
LCD

Hi Is there any LCD examples on the TI web site for parralell LCD modules like the ones that use a HD44780 controler or equivalent? Not the built...

Hi Is there any LCD examples on the TI web site for parralell LCD modules like the ones that use a HD44780 controler or equivalent? Not the built in LCD MUX function. Any MSP but I use the MSP430FG4618. Thanks, I looked but couldent find any. ------------------------------------


MSP430F415 and a custom LCD

Started by ljbdeshler in MSP43012 years ago
LCD

We made a custom, 72 segment lcd and it is 1/3 duty, 1/3 bias and 3.3vdc operating voltage. The pc board is nothing but 3 buttons, 3.3v...

We made a custom, 72 segment lcd and it is 1/3 duty, 1/3 bias and 3.3vdc operating voltage. The pc board is nothing but 3 buttons, 3.3v regulator, MSP430F415 and LCD. We had the LCD remade because the viewing angle (6oclock) looked better at 12oclock than 6. I had 2 boards with the new lcd made. They are identical boards. One powered up and looks great. The other one turns on lcd


How to drive 5v LCD from 3.3v output?

Started by Craig in MSP43011 years ago 11 replies

Hi All, After getting my Timer_A to work correctly, I would now like to see and make sure everything is working correctly by hooking up an...

Hi All, After getting my Timer_A to work correctly, I would now like to see and make sure everything is working correctly by hooking up an LCD. The mspgcc compiler has a nice sample for hooking up and running an LCD. I purchased the LCD, got it wired up and nothing happens. Well, I went back and looked at the LCD and it requires 5v to run. I searched the archives and it looks like...


nokia6100 lcd interface with msp430f2618

Started by imshareef2003 in MSP4309 years ago 1 reply

Hello everyone, Am having problems running a nokia 6100 lcd with msp430f2618. i have modified the code given...

Hello everyone, Am having problems running a nokia 6100 lcd with msp430f2618. i have modified the code given in http://electronique.marcel.free.fr/LCD%20Nokia%20couleurs.html appropriately to fit into msp430f2618. But things dont seem to work. First of all the LCD pin configuration given in the above site did not match mine, though i had a similar looking lcd display. i could find ...


LCD problem

Started by ramesh babu nalagarla in MSP43014 years ago 1 reply
LCD

Hi Friends!I'am working with MSP430f412 on LCD interface module.I'am using LCD controller in 4MUX mode with following settings. LCDCTL =...

Hi Friends!I'am working with MSP430f412 on LCD interface module.I'am using LCD controller in 4MUX mode with following settings. LCDCTL = LCDON + LCD4MUX + LCDP1+LCDP0; BTCTL = BTFRFQ1; P5SEL = 0xFC; I'am writing letters 0-9 on LCD infinet loop.But after some time LCD is not glowing.probably micro may enter into low power mode.But I'am not calling any


LCD static/mux?

Started by IL in MSP43013 years ago 6 replies
LCD

> Does anyone know what type of LCD is on the olimex MSP430F413STK2 board? Since the COM lines are used, I am assuming it is a mux LCD. In the...

> Does anyone know what type of LCD is on the olimex MSP430F413STK2 board? Since the COM lines are used, I am assuming it is a mux LCD. In the schematics, COM0 is shown with no connection, while COM1, COM2 and COM3 have connections. So is it a 3-mux LCD? The documentation for the board is pathetic. > Thanks, > Joseph It is a 4-MUX LCD. Requires all four Com lines to display character


Color LCD

Started by Jim Carlson in MSP4309 years ago 8 replies
LCD

I am interested in changing from a standard LCD to a color display. Does anyone have a recommendation on a reasonable cost Color LCD? I am...

I am interested in changing from a standard LCD to a color display. Does anyone have a recommendation on a reasonable cost Color LCD? I am using the MSP430FG4619 and can re-assign the LCD drive ports to interface to a 16 bit serial style unit. Thanks, Jim ------------------------------------


MSP430 basic queries

Started by souvagya_suva in MSP43013 years ago 1 reply

Hi, Can anybody suggest me regarding the general enquiry 1. Can I use a UART for both SPI and Serial at a time. 2. Does the built in LCD driver...

Hi, Can anybody suggest me regarding the general enquiry 1. Can I use a UART for both SPI and Serial at a time. 2. Does the built in LCD driver versions of MSP430 support LCD Module or Just LCD. 3. Can the built in LCD driver be used for Grphics LCD as well. 4. What are noise reduction techniques for MSP430. 5. When external interrupt is activated a simple touch over the masked track


Strange LCD Behavior

Started by Richard in MSP43011 years ago 2 replies
LCD

I am using the MSP430F42x with a static LCD. Some units are failing with many LCD segments coming partially on that should be off. I...

I am using the MSP430F42x with a static LCD. Some units are failing with many LCD segments coming partially on that should be off. I have tried replacing the micro and the LCD to no avail. On the segments that should be off I can see a pulse train of about 50mV PTP. Perhaps there is a problem in the PCB, I can find none. Failure rate is about 5-10%. I am wondering if anyone else has had


LCD Drive Requirements

Started by ljbdeshler in MSP43012 years ago
LCD

From the data book for MSP430F415: "The voltages required for the LCD signals are supplied externally to pins R33,R23, R13, and R03....R is...

From the data book for MSP430F415: "The voltages required for the LCD signals are supplied externally to pins R33,R23, R13, and R03....R is typically 680 k ohms Values of R from 100k ohm to 1M ohm can be used depending on LCD requirements." If I want to go out and have a custom LCD manufactured, 1/3 duty, 1/3 bias, what design feature of the lcd determines the value of the e


Small LCD

Started by Richard in MSP43012 years ago
LCD

I need to drive a small 3-digit LCD with an MSP430. I have never driven an LCD directly, I have used LCD MODULES. I would appreciate any tips...

I need to drive a small 3-digit LCD with an MSP430. I have never driven an LCD directly, I have used LCD MODULES. I would appreciate any tips on doing this and reccomendations for a small (1"-1.5") 3-digit LCD display. Right now I am looking at the Lumex LCD_S301C31TR Thanks Rich


MCU too big?

Started by abufadel in MSP4308 years ago 6 replies
LCD

Hello, I would like to drive a two digit lcd display totaling 14 segments. The smallest msp430 that drives an lcd has 48 pins...

Hello, I would like to drive a two digit lcd display totaling 14 segments. The smallest msp430 that drives an lcd has 48 pins (MSP430FG477/8/9). This means there will be a lot of pins that are not connected. In addition to lcd, I would be using one a/d input pin and I2C. Is this a good choice for what I want or can I get by with a smaller part that is not meant specifically for an LCD disp...


LCD Module or Panel?

Started by nutley1 in MSP43012 years ago 1 reply
LCD

Hi, I am trying to select a LCD for my project. I believe dot matrix LCD module is easier on the hardware side, but it uses more power. On...

Hi, I am trying to select a LCD for my project. I believe dot matrix LCD module is easier on the hardware side, but it uses more power. On the hand, MSP430 provides the LCD driver. So use the LCD panel driven by MSP430 directly will save power. Am I right? Thanks. Josh


Interfacing HDD4780 with 3.3V supply

Started by linked82 in MSP43011 years ago 2 replies
LCD

Hi all, I would like to interface my LCD with my MSP. I've made this in the past, but the LCD was powered from a 5 V supply because...

Hi all, I would like to interface my LCD with my MSP. I've made this in the past, but the LCD was powered from a 5 V supply because the specification said that it was not able of work with less than 4.5 V. My only solution was always write on the LCD. Now I've a 2x16 characters LCD in which Vsupply(min) is 2.75 V, and I want to write and read from it with a 3.3V supply. I think there is


Re: MSP430F449 LCD lines as digital O ports

Started by Anonymous in MSP43014 years ago 4 replies

Hi Kobus, you wrote on 29/09/2003 16:27:24: The "static" on a LCD driver means that it is not multiplexed, but LCD is allways drived with AC...

Hi Kobus, you wrote on 29/09/2003 16:27:24: The "static" on a LCD driver means that it is not multiplexed, but LCD is allways drived with AC voltage. The outputs will be a sqare wave and you will need a "back plane" AC output (generated by LCD controller also, COM0). The datasheet of MSP430F449 says that S2..S33 outputs is for the LCD driver only and they aren't accessed


Custom LCD in simulator

Started by TapiTapo in MSP43010 years ago

Good morning, Did someone know if it is possible to make a custom LCD interface with the LCD windows of IAR simulator? Two different .lcd...

Good morning, Did someone know if it is possible to make a custom LCD interface with the LCD windows of IAR simulator? Two different .lcd files are provided from IAR a 7 and 14 segment, but I can't understand the code with an hexadecimal reader. If someone have an idea;) --


LCD difficulty

Started by Omer Yalhi in MSP43014 years ago 1 reply
LCD

I have a custom board and I have soldered an lcd on it. I know that the LCD is working. However, after soldering the lcd to the board, some...

I have a custom board and I have soldered an lcd on it. I know that the LCD is working. However, after soldering the lcd to the board, some of the segments appear lighter than they should be. Increasing the contrast does not help either. (some are still lighter). Is there a way to find out what is causing this?


interfacing nokia 6100 LCD

Started by kishor babu in MSP4309 years ago

Hello all, =A0has anyone tried interfacing nokia LCD=A0module with msp430? we are usin= g msp430f2618. we took the code from...

Hello all, =A0has anyone tried interfacing nokia LCD=A0module with msp430? we are usin= g msp430f2618. we took the code from http://electronique.marcel.free.fr/LCD= _Nokia/Sources/Test_Nokia_7210_MSP430_SPI.c=A0and modified according to our= f26x. unfortunately it is not working. we could not see any character on= =A0=A0LCD. we are "directly" driving LCD SPI pins with MSP UCSI. if you hav= ...


MSP430FG4618 Experimental Board LCD Write

Started by randy ram in MSP4309 years ago
LCD

I was wondering if anyone has tried to write to the LCD on this experimental board from TI.All I am trying to do is find a way to write values...

I was wondering if anyone has tried to write to the LCD on this experimental board from TI.All I am trying to do is find a way to write values (digits) to the LCD.I found an example from TI that cycles through the LCD to show it works. But trying to figure out how to actually write something that I want into it. When I used to do it in PICBASIC it was just likeLCDOUT "temp"and this will just ...