Nokia 5110 with MSP430

lcdtemp.c

//based on code by Robg http://forum.43oh.com/topic/1312-nokia-5110-display/#p12104



#include "msp430g2553.h"
#include "PCD8544.h"
char temp[3];

int tempbuff=0;
#define LCD5110_SCLK_PIN BIT5
#define LCD5110_DN_PIN BIT7
#define LCD5110_SCE_PIN BIT0
#define LCD5110_DC_PIN BIT1
#define LCD5110_SELECT P1OUT &= ~LCD5110_SCE_PIN
#define LCD5110_DESELECT P1OUT |= LCD5110_SCE_PIN
#define LCD5110_SET_COMMAND P1OUT &= ~LCD5110_DC_PIN
#define LCD5110_SET_DATA P1OUT |= LCD5110_DC_PIN
#define LCD5110_COMMAND 0
#define LCD5110_DATA 1

#define SPI_MSB_FIRST UCB0CTL0 |= UCMSB // or UCA0CTL0 |= UCMSB (USCIA) or USICTL0 &= ~USILSB (USI)
#define SPI_LSB_FIRST UCB0CTL0 &= ~UCMSB // or UCA0CTL0 &= ~UCMSB or USICTL0 |= USILSB (USI)

void tempInit()
{
	ADC10CTL0=SREF_1 + REFON + ADC10ON + ADC10SHT_3 ; //1.5V ref,Ref on,64 clocks for sample
	ADC10CTL1=INCH_10+ ADC10DIV_3; //temp sensor is at 10 and clock/4
}
int tempOut()
{
	int t=0;
	__delay_cycles(1000);              //wait 4 ref to settle
	ADC10CTL0 |= ENC + ADC10SC;      //enable conversion and start conversion
	while(ADC10CTL1 & BUSY);         //wait..i am converting..pum..pum..
	t=ADC10MEM;                       //store val in t
	ADC10CTL0&=~ENC;                     //disable adc conv
	return(int) ((t * 27069L - 18169625L) >> 16); //convert and pass
}

void writeStringToLCD(const char *string);
void writeCharToLCD(char c);
void writeBlockToLCD(char *byte, unsigned char length);
void writeGraphicToLCD(char *byte, unsigned char transform);
void writeToLCD(unsigned char dataCommand, unsigned char data);
void clearLCD();
void clearBank(unsigned char bank);
void setAddr(unsigned char xAddr, unsigned char yAddr);
void initLCD();

unsigned char currXAddr = 0; //TODO this will be used for tracking current addr
unsigned char currYAddr = 0; //not implemented

//char testBlock[8] = {0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF};
char testBlock[8] = {0x00, 0x7F, 0x7F, 0x33, 0x33, 0x03, 0x03, 0x03};
char testBlock2[8] = {0x00, 0x18, 0x18, 0x18, 0x7E, 0x3C, 0x18, 0x00};

int main() {

WDTCTL = WDTPW + WDTHOLD; // disable WDT
BCSCTL1 = CALBC1_1MHZ; // 1MHz clock
DCOCTL = CALDCO_1MHZ;

P1OUT |= LCD5110_SCE_PIN + LCD5110_DC_PIN;
P1DIR |= LCD5110_SCE_PIN + LCD5110_DC_PIN;

// setup USIB
P1SEL |= LCD5110_SCLK_PIN + LCD5110_DN_PIN;
P1SEL2 |= LCD5110_SCLK_PIN + LCD5110_DN_PIN;

UCB0CTL0 |= UCCKPH + UCMSB + UCMST + UCSYNC; // 3-pin, 8-bit SPI master
UCB0CTL1 |= UCSSEL_2; // SMCLK
UCB0BR0 |= 0x01; // 1:1
UCB0BR1 = 0;
UCB0CTL1 &= ~UCSWRST; // clear SW

__delay_cycles(500000);
initLCD();
clearLCD();
tempInit();
while(1)
{
clearBank(4);
tempbuff=tempOut();
temp[0]=((tempbuff/10)+'0');
temp[1]=((tempbuff%10)+'0');
writeStringToLCD("Temp(in C): ");
writeStringToLCD(temp);

clearBank(5);
writeStringToLCD("    ");
writeGraphicToLCD(testBlock2, NONE);
writeGraphicToLCD(testBlock2, FLIP_H);
writeGraphicToLCD(testBlock2, ROTATE);
writeGraphicToLCD(testBlock2, ROTATE_90_CCW);



clearBank(0);
writeStringToLCD(" Rohit Gupta ");
clearBank(1);
writeStringToLCD(" IndianTinker ");
clearBank(2);
writeStringToLCD("Nokia 5110 LCD with MSP430 ");
__delay_cycles(2000000);

}
return 0;
}

void writeStringToLCD(const char *string) {
while(*string) {
writeCharToLCD(*string++);
}
}

void writeCharToLCD(char c) {
unsigned char i;
for(i = 0; i < 5; i++) {
writeToLCD(LCD5110_DATA, font[c - 0x20][i]);
}
writeToLCD(LCD5110_DATA, 0);
}

void writeBlockToLCD(char *byte, unsigned char length) {
unsigned char c = 0;
while(c < length) {
writeToLCD(LCD5110_DATA, *byte++);
c++;
}
}

void writeGraphicToLCD(char *byte, unsigned char transform) {
int c = 0;
char block[8];

if(transform & FLIP_V) {
SPI_LSB_FIRST;
}
if(transform & ROTATE) {
c = 1;
while(c != 0) {
(*byte & 0x01) ? (block[7] |= c) : (block[7] &= ~c);
(*byte & 0x02) ? (block[6] |= c) : (block[6] &= ~c);
(*byte & 0x04) ? (block[5] |= c) : (block[5] &= ~c);
(*byte & 0x08) ? (block[4] |= c) : (block[4] &= ~c);
(*byte & 0x10) ? (block[3] |= c) : (block[3] &= ~c);
(*byte & 0x20) ? (block[2] |= c) : (block[2] &= ~c);
(*byte & 0x40) ? (block[1] |= c) : (block[1] &= ~c);
(*byte & 0x80) ? (block[0] |= c) : (block[0] &= ~c);
*byte++;
c <<= 1;
}
} else {
while(c < 8) {
block[c++] = *byte++;
}
}

if(transform & FLIP_H) {
c = 7;
while(c > -1) {
writeToLCD(LCD5110_DATA, block[c--]);
}
} else {
c = 0;
while(c < 8) {
writeToLCD(LCD5110_DATA, block[c++]);
}
}
SPI_MSB_FIRST;
}

void writeToLCD(unsigned char dataCommand, unsigned char data) {
LCD5110_SELECT;
if(dataCommand) {
LCD5110_SET_DATA;
} else {
LCD5110_SET_COMMAND;
}
UCB0TXBUF = data;
while(!(IFG2 & UCB0TXIFG))
;
LCD5110_DESELECT;
}

void clearLCD() {
setAddr(0, 0);
int c = 0;
while(c < PCD8544_MAXBYTES) {
writeToLCD(LCD5110_DATA, 0);
c++;
}
setAddr(0, 0);
}

void clearBank(unsigned char bank) {
setAddr(0, bank);
int c = 0;
while(c < PCD8544_HPIXELS) {
writeToLCD(LCD5110_DATA, 0);
c++;
}
setAddr(0, bank);
}

void setAddr(unsigned char xAddr, unsigned char yAddr) {
writeToLCD(LCD5110_COMMAND, PCD8544_SETXADDR | xAddr);
writeToLCD(LCD5110_COMMAND, PCD8544_SETYADDR | yAddr);
}

void initLCD() {
writeToLCD(LCD5110_COMMAND, PCD8544_FUNCTIONSET | PCD8544_EXTENDEDINSTRUCTION);
writeToLCD(LCD5110_COMMAND, PCD8544_SETVOP | 0x3F);
writeToLCD(LCD5110_COMMAND, PCD8544_SETTEMP | 0x02);
writeToLCD(LCD5110_COMMAND, PCD8544_SETBIAS | 0x03);
writeToLCD(LCD5110_COMMAND, PCD8544_FUNCTIONSET);
writeToLCD(LCD5110_COMMAND, PCD8544_DISPLAYCONTROL | PCD8544_DISPLAYNORMAL);
}

PCD8544.h

#ifndef PCD8544_H_
#define PCD8544_H_

#define PCD8544_POWERDOWN 0x04
#define PCD8544_ENTRYMODE 0x02
#define PCD8544_EXTENDEDINSTRUCTION 0x01

#define PCD8544_DISPLAYBLANK 0x0
#define PCD8544_DISPLAYNORMAL 0x4
#define PCD8544_DISPLAYALLON 0x1
#define PCD8544_DISPLAYINVERTED 0x5

// H = 0
#define PCD8544_FUNCTIONSET 0x20
#define PCD8544_DISPLAYCONTROL 0x08
#define PCD8544_SETYADDR 0x40
#define PCD8544_SETXADDR 0x80
#define PCD8544_HPIXELS 84
#define PCD8544_VBANKS 6
#define PCD8544_MAXBYTES 504 // PCD8544_HPIXELS * PCD8544_VBANKS

// H = 1
#define PCD8544_SETTEMP 0x04
#define PCD8544_SETBIAS 0x10
#define PCD8544_SETVOP 0x80

//transform
#define NONE 0x00
#define FLIP_H 0x01
#define FLIP_V 0x02
#define ROTATE 0x04 // 90 deg CW
#define ROTATE_90_CW ROTATE
#define ROTATE_90_CCW (FLIP_H | FLIP_V | ROTATE)
#define ROTATE_180 (FLIP_H | FLIP_V)

static const char font[][5] = { // basic font
{0x00, 0x00, 0x00, 0x00, 0x00} // 20
,{0x00, 0x00, 0x5f, 0x00, 0x00} // 21 !
,{0x00, 0x07, 0x00, 0x07, 0x00} // 22 "
,{0x14, 0x7f, 0x14, 0x7f, 0x14} // 23 #
,{0x24, 0x2a, 0x7f, 0x2a, 0x12} // 24 $
,{0x23, 0x13, 0x08, 0x64, 0x62} // 25 %
,{0x36, 0x49, 0x55, 0x22, 0x50} // 26 &
,{0x00, 0x05, 0x03, 0x00, 0x00} // 27 '
,{0x00, 0x1c, 0x22, 0x41, 0x00} // 28 (
,{0x00, 0x41, 0x22, 0x1c, 0x00} // 29 )
,{0x14, 0x08, 0x3e, 0x08, 0x14} // 2a *
,{0x08, 0x08, 0x3e, 0x08, 0x08} // 2b +
,{0x00, 0x50, 0x30, 0x00, 0x00} // 2c ,
,{0x08, 0x08, 0x08, 0x08, 0x08} // 2d -
,{0x00, 0x60, 0x60, 0x00, 0x00} // 2e .
,{0x20, 0x10, 0x08, 0x04, 0x02} // 2f /
,{0x3e, 0x51, 0x49, 0x45, 0x3e} // 30 0
,{0x00, 0x42, 0x7f, 0x40, 0x00} // 31 1
,{0x42, 0x61, 0x51, 0x49, 0x46} // 32 2
,{0x21, 0x41, 0x45, 0x4b, 0x31} // 33 3
,{0x18, 0x14, 0x12, 0x7f, 0x10} // 34 4
,{0x27, 0x45, 0x45, 0x45, 0x39} // 35 5
,{0x3c, 0x4a, 0x49, 0x49, 0x30} // 36 6
,{0x01, 0x71, 0x09, 0x05, 0x03} // 37 7
,{0x36, 0x49, 0x49, 0x49, 0x36} // 38 8
,{0x06, 0x49, 0x49, 0x29, 0x1e} // 39 9
,{0x00, 0x36, 0x36, 0x00, 0x00} // 3a :
,{0x00, 0x56, 0x36, 0x00, 0x00} // 3b ;
,{0x08, 0x14, 0x22, 0x41, 0x00} // 3c <
,{0x14, 0x14, 0x14, 0x14, 0x14} // 3d =
,{0x00, 0x41, 0x22, 0x14, 0x08} // 3e >
,{0x02, 0x01, 0x51, 0x09, 0x06} // 3f ?
,{0x32, 0x49, 0x79, 0x41, 0x3e} // 40 @
,{0x7e, 0x11, 0x11, 0x11, 0x7e} // 41 A
,{0x7f, 0x49, 0x49, 0x49, 0x36} // 42 B
,{0x3e, 0x41, 0x41, 0x41, 0x22} // 43 C
,{0x7f, 0x41, 0x41, 0x22, 0x1c} // 44 D
,{0x7f, 0x49, 0x49, 0x49, 0x41} // 45 E
,{0x7f, 0x09, 0x09, 0x09, 0x01} // 46 F
,{0x3e, 0x41, 0x49, 0x49, 0x7a} // 47 G
,{0x7f, 0x08, 0x08, 0x08, 0x7f} // 48 H
,{0x00, 0x41, 0x7f, 0x41, 0x00} // 49 I
,{0x20, 0x40, 0x41, 0x3f, 0x01} // 4a J
,{0x7f, 0x08, 0x14, 0x22, 0x41} // 4b K
,{0x7f, 0x40, 0x40, 0x40, 0x40} // 4c L
,{0x7f, 0x02, 0x0c, 0x02, 0x7f} // 4d M
,{0x7f, 0x04, 0x08, 0x10, 0x7f} // 4e N
,{0x3e, 0x41, 0x41, 0x41, 0x3e} // 4f O
,{0x7f, 0x09, 0x09, 0x09, 0x06} // 50 P
,{0x3e, 0x41, 0x51, 0x21, 0x5e} // 51 Q
,{0x7f, 0x09, 0x19, 0x29, 0x46} // 52 R
,{0x46, 0x49, 0x49, 0x49, 0x31} // 53 S
,{0x01, 0x01, 0x7f, 0x01, 0x01} // 54 T
,{0x3f, 0x40, 0x40, 0x40, 0x3f} // 55 U
,{0x1f, 0x20, 0x40, 0x20, 0x1f} // 56 V
,{0x3f, 0x40, 0x38, 0x40, 0x3f} // 57 W
,{0x63, 0x14, 0x08, 0x14, 0x63} // 58 X
,{0x07, 0x08, 0x70, 0x08, 0x07} // 59 Y
,{0x61, 0x51, 0x49, 0x45, 0x43} // 5a Z
,{0x00, 0x7f, 0x41, 0x41, 0x00} // 5b [
,{0x02, 0x04, 0x08, 0x10, 0x20} // 5c ¥
,{0x00, 0x41, 0x41, 0x7f, 0x00} // 5d ]
,{0x04, 0x02, 0x01, 0x02, 0x04} // 5e ^
,{0x40, 0x40, 0x40, 0x40, 0x40} // 5f _
,{0x00, 0x01, 0x02, 0x04, 0x00} // 60 `
,{0x20, 0x54, 0x54, 0x54, 0x78} // 61 a
,{0x7f, 0x48, 0x44, 0x44, 0x38} // 62 b
,{0x38, 0x44, 0x44, 0x44, 0x20} // 63 c
,{0x38, 0x44, 0x44, 0x48, 0x7f} // 64 d
,{0x38, 0x54, 0x54, 0x54, 0x18} // 65 e
,{0x08, 0x7e, 0x09, 0x01, 0x02} // 66 f
,{0x0c, 0x52, 0x52, 0x52, 0x3e} // 67 g
,{0x7f, 0x08, 0x04, 0x04, 0x78} // 68 h
,{0x00, 0x44, 0x7d, 0x40, 0x00} // 69 i
,{0x20, 0x40, 0x44, 0x3d, 0x00} // 6a j
,{0x7f, 0x10, 0x28, 0x44, 0x00} // 6b k
,{0x00, 0x41, 0x7f, 0x40, 0x00} // 6c l
,{0x7c, 0x04, 0x18, 0x04, 0x78} // 6d m
,{0x7c, 0x08, 0x04, 0x04, 0x78} // 6e n
,{0x38, 0x44, 0x44, 0x44, 0x38} // 6f o
,{0x7c, 0x14, 0x14, 0x14, 0x08} // 70 p
,{0x08, 0x14, 0x14, 0x18, 0x7c} // 71 q
,{0x7c, 0x08, 0x04, 0x04, 0x08} // 72 r
,{0x48, 0x54, 0x54, 0x54, 0x20} // 73 s
,{0x04, 0x3f, 0x44, 0x40, 0x20} // 74 t
,{0x3c, 0x40, 0x40, 0x20, 0x7c} // 75 u
,{0x1c, 0x20, 0x40, 0x20, 0x1c} // 76 v
,{0x3c, 0x40, 0x30, 0x40, 0x3c} // 77 w
,{0x44, 0x28, 0x10, 0x28, 0x44} // 78 x
,{0x0c, 0x50, 0x50, 0x50, 0x3c} // 79 y
,{0x44, 0x64, 0x54, 0x4c, 0x44} // 7a z
,{0x00, 0x08, 0x36, 0x41, 0x00} // 7b {
,{0x00, 0x00, 0x7f, 0x00, 0x00} // 7c |
,{0x00, 0x41, 0x36, 0x08, 0x00} // 7d }
,{0x10, 0x08, 0x08, 0x10, 0x08} // 7e ~
,{0x00, 0x06, 0x09, 0x09, 0x06} // 7f Deg Symbol
};

#endif /*PCD8544_H_*/