Unicorn GLCD demo. - Page 7 - Electronic Circuits Projects Diagrams Free

Pommie · 11th March 2009, 01:16 PM

The chip that you chose has 128k of memory and most compilers assume that you will use a chip that has no more than 64k. With 64k of memory the address fits in 16 bits and so we can use near pointers (16 bit). When the address space gets bigger then we need bigger pointers. The far directive tells the compiler to use 24 bits as a pointer.

You must have lots of data in your project. May I ask what it is?

Mike.

jorg1n · 11th March 2009, 01:41 PM

My project has many variables (900 bytes in data memory), and approximately 97,656 bytes of program data.
My application has several configuration menu and allows to measure several types of informations.
Thank you for your help Pommie

jorg1n · 11th March 2009, 02:20 PM

Pommie, I have a little question to ask:
- I want to display a "float" or "int" is that I convert my string variable, but I get a string of cloud of points.
That's how I proceeded:

Code:

char DATAtoLCD[30];
float voltage;
[...]
voltage = 6.654;
[...]
sprintf (DATAtoLCD,"%6.2f",voltage);
SetPos(73,19);                                           
PutMessage(DATAtoLCD);

I use the Microchip C18 compiler for more information.
Thank you in advance

superbrew · 11th March 2009, 11:10 PM

I use this. You will need to convert your number to an integer, though.

Code:

void displayNum(int x, int y, int theValue) {
    char toPrint[4];
    
    toPrint[0] = (theValue/1000)+48;
    toPrint[1] = ((theValue%1000)/100)+48;
    toPrint[2] = ((theValue%100)/10)+48;
    toPrint[3] = (theValue%10)+48;
    
    SetPos(x,y);
    PutChar(toPrint[0]);
    PutChar(toPrint[1]);
    PutChar(toPrint[2]);
    PutChar(toPrint[3]);
}

I believe this is faster than using sprintf.

Pommie · 12th March 2009, 02:14 AM

The sprintf function in C18 does not support floating point. I suggest you look around for a ftoa function.

Mike.

Pommie · 12th March 2009, 05:21 AM

I had a play with this and here is the result. A quick and dirty ftoa routine.

Code:

void ftoa(float f,char* String,char Places){
long power;
char n,i;
    power=1;
    while(power*10<=f)
        power*=10;
    while(power>=1){
        n=(char)(f/power);
        f-=n*power;
        power/=10;
        *String++=n+'0';
    }
    *String++='.';
    for(i=0;i<Places;i++){
        f*=10;
        n=(char)f;
        f-=n;
        *String++=n+'0';
    }
    *String=0;
}

If you're sure your number will never go over 99,999 then you can change power to an int.

Mike.

juanog · 22nd March 2009, 09:35 PM

Hi AtomSoft, I used your function void loadimg(rom char *image); and the mikroelectronica bitmap generator, I'm using C18 compiler, but when I build the project I have this message of error: Error - section '.idata_main.o' can not fit the section. Section '.idata_main.o' length=0x00000400

Waht can I do? thanks

juanog · 22nd March 2009, 09:44 PM

Please Pommie can you convert my logo to use in GLCD...thanks

AtomSoft · 22nd March 2009, 09:45 PM

Ive been out of the field for a while but if i remember its a memory issue.Like a linker issue.Ask pommie or futz.They helped me with a similar issue. If i remember ill be sure to post the information for you.

superbrew · 23rd March 2009, 12:10 AM

Try reading this: Microchip Technology User Forums

Pommie · 23rd March 2009, 02:27 AM

Quote:

Originally Posted by juanog

Please Pommie can you convert my logo to use in GLCD...thanks

Try this,

Code:

const rom unsigned char Logo[]={
    35,58,
    0x20,0x01,0x00,0x00,
    0xA0,0x03,0x00,0x20,
    0x01,0x00,0x00,0x00,
    0x08,0x10,0x00,0x00,
    0x00,0x00,0x00,0x00,
    0x90,0x00,0x08,0x01,
    0x00,0x00,0x00,0x00,
    0x00,0x21,0x00,0x40,
    0x00,0x16,0x00,0x08,
    0x09,0x20,0x12,0x00,
    0xF2,0x80,0x10,0x00,
    0x80,0x08,0x89,0x04,
    0x08,0xBC,0x54,0x00,
    0x40,0x40,0x12,0x02,
    0x00,0x30,0x0A,0x08,
    0x09,0x10,0x00,0x1C,
    0x02,0x80,0xB4,0x45,
    0x3E,0x00,0x04,0x00,
    0x01,0x10,0x40,0x00,
    0x18,0x00,0x80,0x8E,
    0x02,0x66,0x0B,0xD4,
    0x00,0x84,0xAC,0xA0,
    0x0D,0x08,0xAC,0x85,
    0x6B,0x00,0x60,0x2D,
    0xF0,0x04,0x00,0xAB,
    0x63,0x14,0x00,0x58,
    0x0F,0xB5,0x01,0xC0,
    0x9A,0xC1,0x08,0x00,
    0xD6,0xCB,0x3A,0x00,
    0xB0,0x02,0x6A,0x02,
    0x80,0x95,0xD2,0x13,
    0x00,0xB2,0x04,0x77,
    0x00,0x60,0x24,0x44,
    0x03,0x80,0x1A,0xC1,
    0x23,0x00,0xD2,0x08,
    0x23,0x02,0xC0,0x49,
    0xD0,0x2A,0x80,0x59,
    0x02,0x49,0x03,0xE8,
    0x12,0x38,0xF7,0x5A,
    0x8F,0x40,0x5A,0xAD,
    0x3B,0x04,0x4A,0x00,
    0x26,0xA4,0x90,0x47,
    0x50,0x87,0x84,0x02,
    0x22,0xD1,0x03,0xE4,
    0x49,0xD5,0x19,0xA0,
    0xA2,0x08,0xF2,0x00,
    0x2D,0xA7,0x64,0x01,
    0x48,0x96,0x5A,0x1C,
    0x40,0x73,0x45,0xB2,
    0x00,0x75,0xCE,0x68,
    0x02,0x70,0x8C,0x68,
    0x29,0x00,0x10,0x2B,
    0xB4,0x00,0x60,0x9A,
    0x7E,0x01,0x00,0x96,
    0x56,0x0E,0x00,0x98,
    0x43,0x0F,0x00,0x40,
    0x13,0x84,0x01,0x90,
    0x4A,0xD0,0x36,0x00,
    0x00,0x48,0x00,0x00,
    0x98,0x01,0x4C,0x51,
    0x60,0x4D,0x80,0x2A,
    0x05,0x00,0x00,0x00,
    0x00,0x00,0x00,0x00,
    0x00,0x00
};

As I said the code I wrote is a bit clunky and so I may have made a mistake. Let us know if it works.

Mike.

jorg1n · 25th March 2009, 02:04 PM

Hello,

I want to display a "int". I have used the function of SuperBrew (displayNUM)

Code:

void displayNum(int x, int y, int theValue) {
    char toPrint[4];
    
    toPrint[0] = (theValue/1000)+48;
    toPrint[1] = ((theValue%1000)/100)+48;
    toPrint[2] = ((theValue%100)/10)+48;
    toPrint[3] = (theValue%10)+48;
    
    SetPos(x,y);
    PutChar(toPrint[0]);
    PutChar(toPrint[1]);
    PutChar(toPrint[2]);
    PutChar(toPrint[3]);
}

I use it like this:

Code:

int BacklightType;
[...]
BacklightType++;
[...]
displayNum(50,40, BacklightType);

but I get this when I try to display "10" (see photo)
I guess I have "0010" but my character does nothing ...

I also post my glcd.c so you can see my function "putchar". But I find the strange outcome ...
Have you any idea?

Thank you in advance

jorg1n · 30th March 2009, 07:24 AM

Hello,

I return to you because I managed to correct my error display (declaration problem of my variables), but I would now like to add a function to write in large letters .. But I can not find a solution ..
I thank you in advance

AtomSoft · 30th March 2009, 02:16 PM

to write in large letters you have to make a new font. larger

jorg1n · 30th March 2009, 03:07 PM

Hello AtomSoft,

I already create a new policy of width 8 and height 13, but I don't know how to use this. I want to make a function "putchar" to display the font. Could you help me? Will you or may already be a policy of this kind with a function call?
Thank you in advance

I have another problem, I use the function to display a "INT" of SuperBrew, but sometimes it displays symbols like my previous photo! and sometimes it works, would you also an idea about this problem?

Thank you in advance AtomSoft

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11th March 2009, 01:16 PM	#91
Pommie	The chip that you chose has 128k of memory and most compilers assume that you will use a chip that has no more than 64k. With 64k of memory the address fits in 16 bits and so we can use near pointers (16 bit). When the address space gets bigger then we need bigger pointers. The far directive tells the compiler to use 24 bits as a pointer. You must have lots of data in your project. May I ask what it is? Mike.

11th March 2009, 01:41 PM	#92
jorg1n	My project has many variables (900 bytes in data memory), and approximately 97,656 bytes of program data. My application has several configuration menu and allows to measure several types of informations. Thank you for your help Pommie

11th March 2009, 02:20 PM	#93
jorg1n	Pommie, I have a little question to ask: - I want to display a "float" or "int" is that I convert my string variable, but I get a string of cloud of points. That's how I proceeded: Code: char DATAtoLCD[30]; float voltage; [...] voltage = 6.654; [...] sprintf (DATAtoLCD,"%6.2f",voltage); SetPos(73,19); PutMessage(DATAtoLCD); I use the Microchip C18 compiler for more information. Thank you in advance

12th March 2009, 02:14 AM	#95
Pommie	The sprintf function in C18 does not support floating point. I suggest you look around for a ftoa function. Mike.

22nd March 2009, 09:35 PM	#97
juanog	Hi AtomSoft, I used your function void loadimg(rom char *image); and the mikroelectronica bitmap generator, I'm using C18 compiler, but when I build the project I have this message of error: Error - section '.idata_main.o' can not fit the section. Section '.idata_main.o' length=0x00000400 Waht can I do? thanks

22nd March 2009, 09:44 PM	#98
juanog	bmp to C Please Pommie can you convert my logo to use in GLCD...thanks Attached Images

22nd March 2009, 09:45 PM	#99
AtomSoft	Ive been out of the field for a while but if i remember its a memory issue.Like a linker issue.Ask pommie or futz.They helped me with a similar issue. If i remember ill be sure to post the information for you. __________________ AtomSofts eBay Store AtomSoftTech: C18 TIPS & TRICKS v9 PDF Nokia 6100 Driver/Software My Name: Jason Lopez http://atomsofttech.info/ \| My YouTube Videos! My Favorite Store: dipmicro Electronics

23rd March 2009, 12:10 AM	#100
superbrew	Try reading this: Microchip Technology User Forums

30th March 2009, 07:24 AM	#103
jorg1n	Hello, I return to you because I managed to correct my error display (declaration problem of my variables), but I would now like to add a function to write in large letters .. But I can not find a solution .. I thank you in advance

30th March 2009, 02:16 PM	#104
AtomSoft	to write in large letters you have to make a new font. larger __________________ AtomSofts eBay Store AtomSoftTech: C18 TIPS & TRICKS v9 PDF Nokia 6100 Driver/Software My Name: Jason Lopez http://atomsofttech.info/ \| My YouTube Videos! My Favorite Store: dipmicro Electronics

30th March 2009, 03:07 PM	#105
jorg1n	Hello AtomSoft, I already create a new policy of width 8 and height 13, but I don't know how to use this. I want to make a function "putchar" to display the font. Could you help me? Will you or may already be a policy of this kind with a function call? Thank you in advance I have another problem, I use the function to display a "INT" of SuperBrew, but sometimes it displays symbols like my previous photo! and sometimes it works, would you also an idea about this problem? Thank you in advance AtomSoft