Problem with CC3200 and LCD5110 Library

[wayfarerbasta 0]

Hi community,

I have a problem using the LCD_5110 Display library with my CC3200 Launchpad.

The Compiler does not throw any error but the main Example sketch is not working. The Display just stay white like dead. I double checked the pin configuration but I con not find the problem.

With the example Sketch:

https://github.com/sparkfun/GraphicLCD_Nokia_5110/blob/master/Firmware/Nokia_5110_Arduino_Example/Nokia_5110_Arduino_Example.ino

everything works fine but with the same pin configuration and wiring the example sketch

https://github.com/energia/Energia/blob/master/examples/7.Display/LCD_5110/Examples/LCD_5110_main/LCD_5110_main.ino

Is not working at all.

I use the following pin configuration:

 

LCD_5110::LCD_5110() { // pins names in MSP430G2553
LCD_5110(6, // P2_2 Chip Select
3, // P2_4 Serial Clock
4, // P2_0 Serial Data
5, // P2_3 Data/Command
7, // P1_0 Reset
2, // P2_1 Backlight
PUSH2); // Push Button 2
}

 

Does anybody have some advice for me?

[Rei Vilo 695]

Hi!

 

Why aren't you using the LCD_5110_SPI library instead?

 

The LCD_5110 library use software-emulated SPI while the LCD_5110_SPI uses hardware SPI.

 

Here are some excerpts from Some Misconceptions about Libraries that apply to the LCD_5110 library.

 

 

The libraries are plug-and-play as I'm using them in my projects. However, they are designed for a specific configuration. [...]

 

With so many LaunchPads, BoosterPacks and components possible combinations, the one-fits-all approach is just impossible. [...]

 

Even if the library works out of the box, they are provided as examples and require some work from the user. This is the best way for learning. [...]

 

With new hardware and software releases coming out, a library may suffer from obsolescence. It used to work with a prior version but no longer works with the new one. [...]  

 

[wayfarerbasta 0]

Hi,

I even tried to use the LCD_5110_SPI library but I have the same problem. I don't get any functionality at all (same like with LCD_5110).

Of course I modified the LCD_5110_SPI_main.ino sketch as follows and I don't get any compile error or warning.

///
/// @mainpage Nokia LCD 5110 SPI
///
/// @details Library for Nokia 5110 LCD with hardware SPI
/// @n
/// @n
/// @n @a Developed with [embedXcode](http://embedXcode.weebly.com)
///
/// @author Rei VILO
/// @author embedXcode.weebly.com
/// @date Jan 12, 2013
/// @version 105
///
/// @copyright © Rei VILO, 2012
/// @copyright CC = BY NC SA
///
/// @see ReadMe.txt for references
///
///
/// @file LCD_5110_SPI_main.ino
/// @brief Main sketch
///
/// @details Example for library for Nokia 5110 LCD with hardware SPI
/// @n @a Developed with [embedXcode](http://embedXcode.weebly.com)
///
/// @author Rei VILO
/// @author embedXcode.weebly.com
/// @date Jan 12, 2013
/// @version 105
///
/// @copyright © Rei VILO, 2012
/// @copyright CC = BY NC SA
///
/// @see ReadMe.txt for references
/// @n
///
#include "Energia.h"
// Core library for code-sense
#if defined(WIRING) // Wiring specific
#include "Wiring.h"
#elif defined(MAPLE_IDE) // Maple specific
#include "WProgram.h"
#elif defined(MPIDE) // chipKIT specific
#include "WProgram.h"
#elif defined(ENERGIA) // LaunchPad, FraunchPad and StellarPad specific
#include "Energia.h"
#elif defined(CORE_TEENSY) // Teensy specific
#include "WProgram.h"
#elif defined(ARDUINO) && (ARDUINO >= 100) // Arduino 1.0 and 1.5 specific
#include "Arduino.h"
#elif defined(ARDUINO) && (ARDUINO < 100) // Arduino 23 specific
#include "WProgram.h"
#else // error
#error Platform not defined
#endif
// Include application, user and local libraries
#include "SPI.h"
#include "LCD_5110_SPI.h"
// Variables
/// P._. / PB_4 = SCK (2) = Serial Clock
/// P._. / PB_7 = MOSI (2) = Serial Data

/*#if defined(__MSP430G2553__)
LCD_5110_SPI myScreen;
#elif defined(__LM4F120H5QR__)
LCD_5110_SPI myScreen(PA_7, // Chip Select
PA_2, // Data/Command
PB_5, // Reset
PA_6, // Backlight
PUSH2); // Push Button 2
#endif*/
LCD_5110_SPI myScreen;
boolean backlight = false;
uint8_t k = 0;
// Add setup code
void setup() {
//#if defined(__MSP430G2553__)
Serial.begin(115200);
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV16);
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
/*#elif defined(__LM4F120H5QR__)
SPI.Select(2);
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV128); // for LM4F120H5QR DIV2 = 4 MHz !
#endif*/
myScreen.begin();
myScreen.setBacklight(backlight);
myScreen.text(0, 0, "Hello!");
delay(1000);
myScreen.clear();
myScreen.text(0, 5, "Light off");
Serial.println("Setup finshed!");
}
// Add loop code
void loop() {
Serial.println("Loop start");  
if (myScreen.getButton()) {
backlight = (backlight==0);
myScreen.setFont(0);
myScreen.text(0, 5, backlight ? "Light on " : "Light off");
myScreen.setBacklight(backlight);
}
myScreen.setFont(1);
myScreen.text(0, 2, " MSP430");
//if (k==0) myScreen.text(0, 2, " MSP430");
//else if (k==8) myScreen.text(0, 2, " LM4F ");
myScreen.setFont(0);
//for (uint8_t i=0; i<14; i++) myScreen.text(i, 4, (i==k) ? "*" : " ");
//k ++;
//k %= 14;
delay(200);
Serial.println("Loop end");
}

I added some debug print commands to find out what is wrong. It seems that the sketch will stuck anywhere in the main loop because I only get the debug messages "Setup finished" and "Loop start" but the loop is no loop ("Loop start" is printet only once).

The LCD_5110_SPI.cpp is modified according to my wireing:

// 2015-02-07 Rei Vilo
// Pins numbers instead of pins names
LCD_5110_SPI::LCD_5110_SPI() { // pins names in MSP430G2553
LCD_5110_SPI(18, // P2_2 Chip Select
17, // P2_3 Data/Command
19, // P1_0 Reset
2, // P2_1 Backlight
PUSH2); // Push Button 2
}

The other pins of the display are connect:

• Display, CLK --> pin 7, SCK
• Display, DIN --> pin 15, MOSI
• Display, GND --> pin 22, GROUND
• Display, VCC --> pin 1, 3,3V

I hope somebody can help me.

[serdarq 1]

@wayfarerbasta@Rei Vilo hey guys, I have tried the same library but even i comment all the lines Rei said the compiler gives the same error ? and shouldnt i add some codes to introduces my MCU like: 

 

#elif defined(__TM4C1294NCPDT__)

LCD_5110_SPI myScreen(PQ_1,    // Chip Select

                     PQ_2,    // Data/Command

                     PK_7,    // Reset

                     PK_6,    // Backlight

                     USR_SW1);   // Push Button 2  

[Rei Vilo 695]

As the CC3200 runs faster than the MSP430, lower the speed, e.g. SPI_CLOCK_DIV128.