- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
What is the part number of the display, and a schematic of your
connections to power, contrast,ground, PSOC.
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Rename your "LCD_Char_1" to "LCD" and compilation will have less errors.
Bob
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Of course you know you can replace this -
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_0); /* Puts "C" at 2nd column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_1); /* Puts "Y" at 4th column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_2); /* Puts "P" at 6th column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_3); /* Puts "R" at 8th column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_4); /* Puts "E" at 10th column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_5); /* Puts "S" at 12th column on first row */
pos += 2u;
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_6); /* Puts "S" at 14th column on first row */
pos += 2u;
with this -
LCD_Position( row, pos );
LCD_PrintString( "Cypress" ); // Print out string
or -
strbuff[ 17 ] = "Cypress"; // LCD 16 char + 1 for nul character
LCD_Position( row, pos );
LCD_PrintString( &strbuff[ 0 ] ); // Print out string
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Here is an LCD program that you can use on any pin on the PSOC unlike the original library that has to start at Port 0 and then increase from there. Such as P1(0) or P2(0) or P3(0). This is an easier part to use if you design has a lot of resources. Also in your LCD component you did not click the User defined setting that would have been necessary in your design. The example I am sending is a bar graph but you can convert it to ASCII characters.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I did not see any attachment in your post
when I write LCD_start(); function I am getting 2 Error. I don't understand why I am getting error
Build error: undefined reference to `LCD_start'
Address the error(s) specified in this message and rebuild the project.
/* ========================================
*
* Copyright YOUR COMPANY, THE YEAR
* All Rights Reserved
* UNPUBLISHED, LICENSED SOFTWARE.
*
* CONFIDENTIAL AND PROPRIETARY INFORMATION
* WHICH IS THE PROPERTY OF your company.
*
* ========================================
*/
#include <project.h>
int main()
{
LCD_start();
/* Place your initialization/startup code here (e.g. MyInst_Start()) */
/* CyGlobalIntEnable; */ /* Uncomment this line to enable global interrupts. */
for(;;)
{
/* Place your application code here. */
}
}
/* [] END OF FILE */
look at this two statement
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_0); /* Puts "C" at 2nd column on first row */
pos += 2u;
which is column 2nd clumn and first row ?
LCD_Position(row, pos);
LCD_PutChar(LCD_CUSTOM_1); /* Puts "Y" at 4th column on first row */
pos += 2u;
which is column 4th clumn and first row ?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
This LCD_start( ); should be typed as LCD_Start( );
Regards, Dana
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
From the LCD datasheet -
Vee is a contrast adjustment, from LCD datasheet -
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Sorry about the down load here it is!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
@bobgoar
...everyone has got three tries .... ;-))
Bob
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I do not know what is wrong with my file attachments I tried yesterday and today and it is not posted. I am going to move the fike to another computer and try it again.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
What happen with reward store??
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
@vead
You can name a port as you like. For your better understanding it was named "LCDPort" from which - as you can see - 7 pins are needed. The usual writing is "portmame" an underscore "_" and the pin number, so
LCDPort_3 is talking about pin 3 of the LCDPort. Remember that pin counting always start with zero (0). Stick to the connection tables Dana posted. On the LCD-module the pins for DB0 to DB3 are not connected and left floating.
Bob
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Which pin is enable pin of MCU (psoc 4 kit )?
Which pin is RS pin of MCU (psoc 4 kit )?
Which pin is R/W pin of MCU (psoc 4 kit )?
Pin 1 should be connecte with ground
Pin 2 should be connected with VDD
Pin 3 should be connecte
Pin 4 should be connecte
Pin 5 should be connecte
Pin 6 should be connecte
Pin 7 should be connecte with data pin of microcontroller
Pin 8 should be connecte with data pin of microcontroller
Pin 9 should be connecte with data pin of microcontroller
Pin 10 should be connecte with data pin of microcontroller
Pin 11 should be connecte with data pin of microcontroller
Pin 12 should be connecte with data pin of microcontroller
Pin 13 should be connecte with data pin of microcontroller
Pin 14 should be connecte with data pin of microcontroller
Pin 15 X
Pin 16 X
I tried to open your workspace. But when I try I get error
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
It is in PSOC Creator 3.1 SP2 (3.1.0.2177). you need to unzip the program to a working Dir before you can load it into your PSOC program. Also what LCD module are you using? Check the CDWR file in the PSOC program to seen the ports and wiring information.
I have checked the file I uploaded to Cypress by downloading it on my system and it worked with out errors.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I could successfully download, unzip and open the workspace, check what you did and tell us the errormessage.
Bob
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
If you get a solderless breadboard and a Arduino proto board such as
Arduino ProtoShield Prototype Kit Shield Prototyping with 170 Mini Breadboard
At Amazon BI00170 for $5.03 then you can interface the LCD to the PSOC 4 board. I think you are using a PSOC 4200 board. you would need some jumpers to attach it to your board. I am using a PSOC pioneer kit and it interfaces to ARDUINO shields just by plugging it in. I was getting a warning in the LCD.h section of the program but it doesn't affect the program. Item was defined by default.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I can open project that you gave me in your post
I am using jhd162a 16x2 lcd
I looked pin configuration But I don't understand which are E , RS, and R/W of MCU. If you look my last three post I am asking about following questions
Which pin is enable pin of MCU (psoc 4 kit )?
Which pin is RS pin of MCU (psoc 4 kit )?
Which pin is R/W pin of MCU (psoc 4 kit )?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Which pin is enable pin of MCU (psoc 4 kit )? LCDPort Pin 4
Which pin is RS pin of MCU (psoc 4 kit )? LCDPort Pin 5
Which pin is R/W pin of MCU (psoc 4 kit )? LCDPort Pin 6
Bob
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
In my design the Enable pin is Port 3 pin 4 of your 4200 board. RS pin goes to Port 2 pin 6. RW pin of the LCD goes to system ground. The great thing about PSOC is that you can assign external ports to any pin that is not used the PSOC will re route the signal to any external pin as long as you asign it in cydwr file. and it is not constrained by the 4200 board design. Also there is no degisnatior for MCU. MCU=PSOC4. Also I am not sure that your LCD will work with a Hitachi HD44780 LCD display
driver which this software is designed for. It may but I am not sure. You can try it and see what happens.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
From the LCD datasheet -
So LCDPort_0 in the above, if you are using port 2 on PSOC is pin 0 port 2 psoc.
So LCDPort_1 in the above, if you are using port 2 on PSOC is pin 1 port 2 psoc.
Vee is a pin on display, commonly called contrast pin. Basically you adjust that pin
wiuth a pot and adjust for best display appearance, it ranges from 0V to Vdd of the
display. Which is normally also Vdd of PSOC.
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Dana you are right if you are using the standard Component I am using the multiport component.and it can use any pin of the PSOC you are not ried to port x pin 0.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
I had thought poster was using a single port, the multiport component
is a good component, especially for PSOC 4 because of more constrained
routing inherent in it.
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
My LCD is ON. but LCD not showing text
there are three section
1. design (pin configuration )
2. program
3. hardware connection ( LCD with kit )
I have already posted my pin diagram and program. I have design and program with no error. I have connected LCD with Kit .
how to sortout problem step by step ? which section is wrong ? where I am doing mistake ? please tell me
pin connection
LCD Pin 1 connected with ground
LCD Pin 2 connected with VDD
LCD Pin 3 connected with ground
LCD Pin 4 [RS] connecte with pin P3[4]
LCDPin 5 (R/W) should be connected with P3[5]
LCD Pin 6 (E) should be connecte with p3 [6]
Pin 7 should be connecte with data pin P2[0]
LCD Pin 8 connected with data pin P2[1]
LCD Pin 9 connected with data pin P2[2]
LCD Pin 10 connected with data pin P2[3]
LCD Pin 11 connected with data pin P2[4]
LCD Pin 12 connected with data pin P2[5]
Pin 13 should be connecte with data pin P2[6]
Pin 14 should be connecte with data pin P2[7]
Pin 15 X [ not in use ]
Pin 16 X [ not in use ]
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Pin 1 should be connecte with ground
Pin 2 should be connected with VDD (Vcc in above diagram)
Pin 3 should be connecte pot as show above
Pin 4 should be connecte pin 5 in the PSOC port
Pin 5 should be connecte pin 6 in PSOC port
Pin 6 should be connecte pin 4 in PSOC port
Pin 7 No Connection
Pin 8 No Connection
Pin 9 No Connection
Pin 10 No Connection
Pin 11 Pin 0 in PSOC port
Pin 12 Pin 1 in PSOC port
Pin 13 Pin 2 in PSOC port
Pin 14 Pin 3 in PSOC port
Pin 15 X (connect if display has a backlight to Vdd if display has a current limiting R, if
not connect a series R to LCD pin then other side R to Vdd
Pin 16 Connect to Vss
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
why there is no connection for Pin 7,8 and pin 9 ? I am using jhd 16 2A LCD
please look at this table . datasheet
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Because the controller in the LCD can operate in byte or nibble mode, and
the PSOC component uses the latter, so just needs 4 pins for data.
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
ok , how to sort out problems. where I am doing mistake. I want to fix problem step by step. someone tell me some common mistakes.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Any symptoms ? Do you see anything on display ?
Vee should be ~ 2.5 volts for starters before you do further adjustments
to optimize contrast.
Post your project and a schematic of your current hookup.
I noticed in LCD Display Datasheet they only show a single R to ground on Vee. Thats
unusual unless they place a R to Vdd (Vcc) on the module so user does not have to
use a POT, just a R to Vss to set Vee voltage (contrast adjust). See if you can trace wether
Vee goes to a R on module or right into display chip. If later then use a pot, former just a R to
Vss.
The dataheet only shows an 8 bit interface, but does state KS0066 compatible
chip. That chip is compatible with the LCD PSOC component which is compatible
to 44780 Hitachi/Renesas LCD controller chip. Could it be you have a non compatible
controller on module ?
Look at R/W and Enable and RS and data pins with scope, yous ee activity on them
all ?
Regards, Dana.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Typical errors (probably in that order):
- not setting the contrast properly (try to change the potentiomenter)
- wrong connections, missing connections, connections that are flaky, sometimes connections are grounded by mistake
- wrong API usage
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi vead, it seems the question has been answered by danaaknight but i have a suggestion for you. It is better for you if try to open datasheet by right click the component on the canvas and click the "Open Datasheet", PDF reader will open automatically.