[Energia Library] LCD_screen Library Suite

[Rei Vilo 695]

@@madias

 

You're welcome! Thanks for the feedback.

[skanitz11426459956 0]

Hello, I'm using screen ili9340 ( 2.2 w/ micro sd card slot) by RobG with the tiva c microcontroller and Energia  and am having trouble displaying data from a dht11 temperature sensor I'm using to the screen. Could someone please report me in the right deirection to get thid accomplished? I can write text to the screen with:

 

myScreen.gText((myScreen.screenSizeX()-10*myScreen.fontSizeX())/2, (myScreen.screenSizeY()-myScreen.fontSizeY())/2, "Hello World!", colour_white);

 

I can view the sensor data in the serial monitor using Serial.print. Any help getting the data on the screen would be greatly appreciated.

 

Thanks!

[Rei Vilo 695]

Does the example provided with the library work?

[skanitz11426459956 0]

Yes, the example program provided with the library works fine. I just can't figure out how to display anything but that program or a predifined text that I tell it to display. Sorry if I am missing something here and making it more complicated than it needs to be

[Rei Vilo 695]

Try something like that

#include "SPI.h"
#include "Screen_ILI9340.h"
Screen_ILI9340 myScreen;


void setup()
{
    myScreen.begin();
    myScreen.clear(myColours.red);
    
    myScreen.setFontSolid(false);
    myScreen.setFontSize(myScreen.fontMax());
    myScreen.gText((myScreen.screenSizeX()-11*myScreen.fontSizeX())/2,
                   (myScreen.screenSizeY()-myScreen.fontSizeY())/2,
                   "Hello", myColours.white);
}

void loop()
{
    ;
}

[skanitz11426459956 0]

I guess I don't have the Screen_ILI9340.h or Screen_ILI9340.cpp files I need. I have distribitions 107, 113, and 122beta of the LCD library suite and can't find them anywhere. What I have been using is from the Screen_ILI9340.zip file I found on here. If I try using the Screen_ILI9340_Library.h and Screen_ILI9340_Library.cpp files in that, but remove the Library from the filename I get some errors when compiling the program using them in distribution 122beta. This is the only distribution I have found to give ILI9340 as a choice for that screen, other than the Screen_ILI9340.zip file. Do you know where I can find these files? Thanks again for your help with this, I appreciate it very much!

 

Steve

[Rei Vilo 695]

You're right, I haven't released the files for the ILI9340 screen in the LCD_screen Library Suite.

 

Instead, there were released as a standalone library.

 

You can find and download it at [Energia Library] LCD_screen Library Suite on the sister forum 43oh.

 

I know, dealing with two forums for the LaunchPads is really a mess  . So please visit the two forums.

 

Enjoy!

[Rei Vilo 695]

I know having to deal with two forums on the same topic is everything but easy.

 

Please visit the thread [Energia Library] LCD_screen Library Suite at 

• 43oh at http://forum.43oh.com/topic/3911-energia-library-lcd-screen-library-suite
• Stellarisiti at http://forum.stellarisiti.com/topic/643-energia-library-lcd-screen-library-suite

You may find relevant information in the other forum. 

 

Thank you!

[pjacobs4 0]

 

This is quite easy.

 

1. Change the constructor of the ILI9225 object for

 

#if defined(ENERGIA) // LaunchPads specific

Screen_ILI9225B::Screen_ILI9225B(uint8_t version)

{

                                    // Pin number / LaunchPad MSP430 / LM4F120 TM4C123

    _pinScreenCS            = 2;    // 2  / P1_0 / PB_5;

    _pinTouchClock          = 7;    // 7  / P1_5 / PB_4;

    _pinTouchMOSI           = 15;   // 15 / P1_7 / PB_7;

    _pinTouchMISO           = 14;   // 14 / P1_6 / PB_6;

    _pinScreenDataCommand   = 6;    // 6  / P1_4 / PE_5;

    if (version == 1) {

        _pinTouchCS         = 9;    //  9 / P2_1 / PA_6;

    } else {

        _pinTouchCS         = 10;   // 10 / P2_2 / PA_7;

    }

    _pinReset               = 11;   // 11 / P2_3 / PA_2;

}

 

I'm using the pin numbers instead of the pin names.

 

If you want to place the screen on the second BoosterPack,

• just add 40 to the pin numbers
• and change the SPI port from 2 to 5 (not tested yet)

 

    SPI.setModule(2); // SPI 2 for BoosterPack 1

    SPI.setModule(5); // SPI 5 for BoosterPack 2

 

 

2. Each time there's a 

 

#if defined(__LM4F120H5QR__)

 

add to it

 

#if defined(__LM4F120H5QR__) || defined(__TM4C123GH6PM__) 

 

My project compiles and works perfectly when I use embedXcode but no longer when I use Energia

 

I changed the required lines and the code compiles and uploads, but there are a few issues.  

When using the test ino script:

1. the text on the squares is not rendered

2. The text rendering screen takes 5 and 7 seconds, way longer than my 123

 

The speed is just so slow, is there something in the clock divider settings that I need to tweak?

[Rei Vilo 695]

Sometimes, the colour of the text is the same as the background of the rectangle. Try another colour.

 

To speed SPI up, just use the trick described at http://github.com/energia/Energia/issues/365

[pjacobs4 0]

Sometimes, the colour of the text is the same as the background of the rectangle. Try another colour.

 

To speed SPI up, just use the trick described at http://github.com/energia/Energia/issues/365

Definitely sped things up about 5 times.  Are these considered normal?

*** LCD_protocol

(All times in ms)

LCD 2.2 Touch BoosterPack

176x220

Square(100) 102

Square(50) 26

10xFontSolid(true) 1580

10xFontSolid(false) 3005

Ratio% 52

Original(=1) 390

point(readPixel()) 368

copyPaste() 0

---

[Rei Vilo 695]

Here are the result with a LaunchPad Stellaris LM4F120:

*** LCD_protocol
(All times in ms)
begin... done
LCD 2.2 Touch BoosterPack
220x176
---
Square(100).61
Square(50).15
Font Number.4
Font Average.209
10xFontSolid(true).1269
10xFontSolid(false).2482
Ratio%.51
Original(=1).330
point(readPixel()).313
copyPaste().0

with 

define HARDWARE_SPI

[Rei Vilo 695]

The LCD_screen Library Suite release 225 supports a wide selection of screens on different platforms, including Energia, Teensy and Arduino.

• Screen_ER1963 and Screen_ER1963_SD
• Screen_ER8875 and Screen_ER8875_SD
• Screen_HI32
• Screen_HX8353E
• Screen_HY28A
• Screen_HY28A_SRAM
• Screen_ILI9225B
• Screen_ILI9340
• Screen_K35
• Screen_K35_SPI
• Screen_K70
• Screen_PICadillo
• Screen_PicasoSGC
• Screen_PicasoSPE
• Screen_ST7735
• Screen_W32

Link: http://embeddedcomputing.weebly.com/lcd_screen-library-suite.html

[Rhab 1]

Hi,

 

i am searching for a quick start guide for TM4C123GXL-Launpad with a Kentec 3,5" Boosterpack using Energia. Can someone tell me where to find something like this?

 

Or can you tell me how to use any example at  LCD_screen Library Suite? 

 

I copied the LCD_Screen-, SD- and FDW-Dir to my sketchbook-location and can now choose examples. But i'm not sure how to use this examples, because the includes are confusing for me. I allways get compilation-errors like:

LCD_GUI_demo.cpp:58:31: fatal error: HY28A_SRAM_screen.h: No such file or directory
 #include "HY28A_SRAM_screen.h"
                               ^
compilation terminated.

Similar Files in LCD_Screen are Screen_HY28A_SRAM.h, but if i change file-names it dosn't work either...

 

i would be very thankful if someone could help me...

[Rei Vilo 695]

Try the Protocol example and select your screen.

 

They are 2 releases of the Kentec 3.5" screen: 8-bit parallel and SPI.