Baden Parr

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10 years, 5 months ago.

IAP not compiling?

For the life of me i can't figure out why this isn't working. I'm sure its probably the simplest thing.

I'm trying to compile the SPI_TFT_ILI932 library with the sample code provided, all the libraries are updated and i'm getting errors relating to IAP.

Error: Identifier "USER_FLASH_AREA_SIZE" is undefined in "SPI_TFT_ILI9320/IAP/IAP.cpp", Line: 33, Col: 25


Error: Identifier "USER_FLASH_AREA_START" is undefined in "SPI_TFT_ILI9320/IAP/IAP.cpp", Line: 216, Col: 21

I'm not sure if its something I need to change first or what, I really don't know where to start, I apologize for my ignorance haha. Any help would be much appreciated :)

The code is simply the sample stuff with just a little power on added reset. I'm using the KL25Z platform.

#include "mbed.h"
 
// SPI TFT
// NOTE : connect the LCD reset pin to the reset pin of the CPU board.
//        eg: on the mbed board, this is the 'nR' connection.
//#define NO_FLASH_BUFFER         // Do not use CPU flash for storing bitmaps
#include "SPI_TFT_ILI9320.h"
#include "Arial12x12.h"
#include "Arial24x23.h"
#include "Arial28x28.h"
#include "font_big.h"
SPI_TFT TFT(PTD2, p12,  PTD1, PTD5,"TFT");  //mosi, miso, clk, cs
 
DigitalOut ResetLCD(PTD0); //reset
int main (void)
{
    ResetLCD = 0;
    wait(0.5);
    ResetLCD = 1;  
    TFT.claim(stdout);        // send stdout to the TFT display
    TFT.background(Black);    // set background to black
    TFT.foreground(White);    // set chars to white
    TFT.cls();                // clear the screen
    TFT.set_font((unsigned char*) Arial12x12);  // select the font
 
    TFT.locate(0,0);
    printf("ILI9320 SPI TFT library\n");
    printf("Simple demo\n");
}

Question relating to:

Last updated: 12 Nov 2014
ILI9320, ILI9325, ILI9328, SPI, TFT

1 Answer

Erik -
10 years, 5 months ago.

The IAP is only available on the LPC1768 platform (and with some small changes the LCP11u24. Sadly the library is not available for the KL25. Uncommenting the NO_FLASH_BUFFER probably should fix it. But you will not be able to store the background in the flash memory of the microcontroller.

Thanks for your quick reply, I tried uncommenting the NO_FLASH_BUFFER, no luck. However I don't have any need to store a background. Maybe I will try follow back through the code and delete all the IAP/Background stuff. Cheers, Baden.

EDIT: dunno why defining NO_FLASH_BUFFER didn't work, i just went through and deleted all the parts pertaining to that in the code, and now its compiling.

posted by Baden Parr 06 Nov 2013