Hello,
I'm working on program for displaying numbers on graphic LCD DOGXL160-7 through I2C on microcontroller MSP430g2452. I2C bus is working properly, I am able to set all pixels on the display or reset display, but I can't write anything specific, like numbers. Can you please help?
In main function writeStringLCD is being called like: writeStringLCD(10, 50, "123", &status). And the display.c code is:
Mod edit: code tags
I'm working on program for displaying numbers on graphic LCD DOGXL160-7 through I2C on microcontroller MSP430g2452. I2C bus is working properly, I am able to set all pixels on the display or reset display, but I can't write anything specific, like numbers. Can you please help?
In main function writeStringLCD is being called like: writeStringLCD(10, 50, "123", &status). And the display.c code is:
C:
#include "display.h"
#include"usi_i2c.h"
#include<stdint.h>
#include <msp430.h>
const unsigned char fonts[] = { /* USCI Font Table 7x5 Font Size */0x00, 0x00,
0x00, 0x00, 0x00, /* Each Row describes a 7x5 Font */
0x00, 0x00, 0x00, 0x00, 0x00, /* Each element in a row describes 7 (8) Column Pixels */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x00,
0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFE, 0x00,
0x00, 0xFE, 0xFE, 0xFE, 0xFE, 0x00, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0x00,
0xFE, 0xFE, 0xFE, 0xFE, 0x00, 0x00, 0xFE, 0xFE, 0xFE, 0x00, 0x00, 0x00,
0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x06, 0x0E, 0xFC, 0x40, 0x38,
0xC0, 0xCC, 0x12, 0x12, 0x12, 0xC0, 0xDE, 0x14, 0x14, 0x10, 0x20, 0x30,
0x38, 0x30, 0x20, 0x00, 0x7C, 0x38, 0x10, 0x00, 0x00, 0x10, 0x38, 0x7C,
0x00, 0x08, 0x18, 0x38, 0x18, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xF2, 0x00, 0x00, 0x00, 0xE0, 0x00, 0xE0, 0x00, 0x28, 0xFE, 0x28,
0xFE, 0x28, 0x24, 0x54, 0xFE, 0x54, 0x48, 0xC4, 0xC8, 0x10, 0x26, 0x46,
0x6C, 0x92, 0xAA, 0x44, 0x0A, 0x00, 0xA0, 0xC0, 0x00, 0x00, 0x00, 0x38,
0x44, 0x82, 0x00, 0x00, 0x82, 0x44, 0x38, 0x00, 0x28, 0x10, 0x7C, 0x10,
0x28, 0x10, 0x10, 0x7C, 0x10, 0x10, 0x00, 0x0A, 0x0C, 0x00, 0x00, 0x10,
0x10, 0x10, 0x10, 0x10, 0x00, 0x06, 0x06, 0x00, 0x00, 0x04, 0x08, 0x10,
0x20, 0x40, 0x7C, 0x8A, 0x92, 0xA2, 0x7C, 0x00, 0x42, 0xFE, 0x02, 0x00,
0x42, 0x86, 0x8A, 0x92, 0x62, 0x84, 0x82, 0xA2, 0xD2, 0x8C, 0x18, 0x28,
0x48, 0xFE, 0x08, 0xE4, 0xA2, 0xA2, 0xA2, 0x9C, 0x3C, 0x52, 0x92, 0x92,
0x0C, 0x80, 0x8E, 0x90, 0xA0, 0xC0, 0x6C, 0x92, 0x92, 0x92, 0x6C, 0x60,
0x92, 0x92, 0x94, 0x78, 0x00, 0x6C, 0x6C, 0x00, 0x00, 0x00, 0x6A, 0x6C,
0x00, 0x00, 0x10, 0x28, 0x44, 0x82, 0x00, 0x28, 0x28, 0x28, 0x28, 0x28,
0x00, 0x82, 0x44, 0x28, 0x10, 0x40, 0x80, 0x8A, 0x90, 0x60, 0x4C, 0x92,
0x9E, 0x82, 0x7C, 0x7E, 0x88, 0x88, 0x88, 0x7E, 0xFE, 0x92, 0x92, 0x92,
0x6C, 0x7C, 0x82, 0x82, 0x82, 0x44, 0xFE, 0x82, 0x82, 0x44, 0x38, 0xFE,
0x92, 0x92, 0x92, 0x82, 0xFE, 0x90, 0x90, 0x90, 0x80, 0x7C, 0x82, 0x92,
0x92, 0x5E, 0xFE, 0x10, 0x10, 0x10, 0xFE, 0x00, 0x82, 0xFE, 0x82, 0x00,
0x04, 0x02, 0x82, 0xFC, 0x80, 0xFE, 0x10, 0x28, 0x44, 0x82, 0xFE, 0x02,
0x02, 0x02, 0x02, 0xFE, 0x40, 0x30, 0x40, 0xFE, 0xFE, 0x20, 0x10, 0x08,
0xFE, 0x7C, 0x82, 0x82, 0x82, 0x7C, 0xFE, 0x90, 0x90, 0x90, 0x60, 0x7C,
0x82, 0x8A, 0x84, 0x7A, 0xFE, 0x90, 0x98, 0x94, 0x62, 0x62, 0x92, 0x92,
0x92, 0x8C, 0x80, 0x80, 0xFE, 0x80, 0x80, 0xFC, 0x02, 0x02, 0x02, 0xFC,
0xF8, 0x04, 0x02, 0x04, 0xF8, 0xFC, 0x02, 0x1C, 0x02, 0xFC, 0xC6, 0x28,
0x10, 0x28, 0xC6, 0xE0, 0x10, 0x0E, 0x10, 0xE0, 0x86, 0x8A, 0x92, 0xA2,
0xC2, 0x00, 0xFE, 0x82, 0x82, 0x00, 0xA8, 0x68, 0x3E, 0x68, 0xA8, 0x00,
0x82, 0x82, 0xFE, 0x00, 0x20, 0x40, 0x80, 0x40, 0x20, 0x02, 0x02, 0x02,
0x02, 0x02, 0x00, 0x80, 0x40, 0x20, 0x00, 0x04, 0x2A, 0x2A, 0x2A, 0x1E,
0xFE, 0x0A, 0x12, 0x12, 0x0C, 0x1C, 0x22, 0x22, 0x22, 0x04, 0x0C, 0x12,
0x12, 0x0A, 0xFE, 0x1C, 0x2A, 0x2A, 0x2A, 0x18, 0x10, 0x7E, 0x90, 0x80,
0x40, 0x30, 0x4A, 0x4A, 0x4A, 0x7C, 0xFE, 0x10, 0x20, 0x20, 0x1E, 0x00,
0x00, 0x5E, 0x00, 0x00, 0x04, 0x02, 0x22, 0xBC, 0x00, 0xFE, 0x08, 0x14,
0x22, 0x00, 0x00, 0x82, 0xFE, 0x02, 0x00, 0x3E, 0x20, 0x18, 0x20, 0x1E,
0x3E, 0x10, 0x20, 0x20, 0x1E, 0x1C, 0x22, 0x22, 0x22, 0x1C, 0x3E, 0x28,
0x28, 0x28, 0x10, 0x10, 0x28, 0x28, 0x18, 0x3E, 0x3E, 0x10, 0x20, 0x20,
0x10, 0x12, 0x2A, 0x2A, 0x2A, 0x04, 0x20, 0xFC, 0x22, 0x02, 0x04, 0x3C,
0x02, 0x02, 0x04, 0x3E, 0x38, 0x04, 0x02, 0x04, 0x38, 0x3C, 0x02, 0x0C,
0x02, 0x3C, 0x22, 0x14, 0x08, 0x14, 0x22, 0x30, 0x0A, 0x0A, 0x0A, 0x3C,
0x22, 0x26, 0x2A, 0x32, 0x22, 0x00, 0x10, 0x6C, 0x82, 0x00, 0x00, 0x00,
0xFE, 0x00, 0x00, 0x00, 0x82, 0x6C, 0x10, 0x00, 0x10, 0x10, 0x54, 0x38,
0x10, 0x10, 0x38, 0x54, 0x10, 0x10, 0x0E, 0x94, 0x24, 0x94, 0x0E, 0x0E,
0x14, 0xA4, 0x14, 0x0E, 0x0E, 0x54, 0xA4, 0x54, 0x0E, 0x04, 0x2A, 0x6A,
0xAA, 0x1E, 0x04, 0x2A, 0xAA, 0x2A, 0x1E, 0xFE, 0xFE, 0x92, 0x92, 0x92,
0xBC, 0x42, 0x42, 0x42, 0xBC, 0x0C, 0x52, 0x12, 0x52, 0x0C, 0x3A, 0x4C,
0x54, 0x64, 0xB8, 0x18, 0x26, 0x3C, 0x64, 0x18, 0xBC, 0x02, 0x02, 0x02,
0xBC, 0x1C, 0x42, 0x02, 0x44, 0x1E, 0x40, 0x20, 0x10, 0x08, 0x04, 0x2A,
0x2C, 0x38, 0x68, 0xA8, 0x30, 0x40, 0x30, 0x08, 0x30, 0x52, 0xAA, 0xAA,
0xAA, 0x94, 0x7E, 0x90, 0xFE, 0x90, 0x90, 0x2C, 0x2A, 0x1C, 0x2A, 0x1A,
0x12, 0x7E, 0x92, 0x92, 0x42, 0xFE, 0xA0, 0xA8, 0x5E, 0x0A, 0x38, 0x7C,
0x7C, 0x7C, 0x38, 0x38, 0x44, 0x44, 0x44, 0x38, 0x10, 0x38, 0x7C, 0x38,
0x10, 0x10, 0x28, 0x44, 0x28, 0x10, 0x00, 0x00, 0xEE, 0x00, 0x00, 0x70,
0x8A, 0x8C, 0x88, 0x88, 0x06, 0x0A, 0x12, 0x22, 0x7E, 0x02, 0x22, 0x52,
0x8A, 0x02, 0x02, 0x8A, 0x52, 0x22, 0x02, 0x08, 0x1C, 0x2A, 0x08, 0xF8,
0x20, 0x40, 0xFE, 0x40, 0x20, 0x08, 0x04, 0xFE, 0x04, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x0E, 0x0A, 0x0E, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x80,
0x80, 0x02, 0x02, 0x1E, 0x00, 0x00, 0x08, 0x04, 0x02, 0x00, 0x00, 0x00,
0x18, 0x18, 0x00, 0x00, 0x50, 0x50, 0x52, 0x54, 0x78, 0x20, 0x22, 0x2C,
0x28, 0x30, 0x04, 0x08, 0x1E, 0x20, 0x00, 0x18, 0x10, 0x32, 0x12, 0x1C,
0x12, 0x12, 0x1E, 0x12, 0x12, 0x12, 0x14, 0x18, 0x3E, 0x10, 0x10, 0x3E,
0x10, 0x14, 0x18, 0x02, 0x12, 0x12, 0x1E, 0x02, 0x2A, 0x2A, 0x2A, 0x3E,
0x00, 0x18, 0x00, 0x1A, 0x02, 0x1C, 0x10, 0x10, 0x10, 0x10, 0x10, 0x80,
0x82, 0xBC, 0x90, 0xE0, 0x08, 0x10, 0x3E, 0x40, 0x80, 0x70, 0x40, 0xC2,
0x44, 0x78, 0x42, 0x42, 0x7E, 0x42, 0x42, 0x44, 0x48, 0x50, 0xFE, 0x40,
0x42, 0xFC, 0x40, 0x42, 0x7C, 0x50, 0x50, 0xFE, 0x50, 0x50, 0x10, 0x62,
0x42, 0x44, 0x78, 0x20, 0xC0, 0x42, 0x7C, 0x40, 0x42, 0x42, 0x42, 0x42,
0x7E, 0x40, 0xF2, 0x44, 0xF8, 0x40, 0x52, 0x52, 0x02, 0x04, 0x38, 0x42,
0x44, 0x48, 0x54, 0x62, 0x40, 0xFC, 0x42, 0x52, 0x62, 0x60, 0x12, 0x02,
0x04, 0x78, 0x10, 0x62, 0x52, 0x4C, 0x78, 0x50, 0x52, 0x7C, 0x90, 0x10,
0x70, 0x00, 0x72, 0x04, 0x78, 0x20, 0xA2, 0xBC, 0xA0, 0x20, 0x00, 0xFE,
0x10, 0x08, 0x00, 0x22, 0x24, 0xF8, 0x20, 0x20, 0x02, 0x42, 0x42, 0x42,
0x02, 0x42, 0x54, 0x48, 0x54, 0x60, 0x44, 0x48, 0xDE, 0x68, 0x44, 0x00,
0x02, 0x04, 0xF8, 0x00, 0x1E, 0x00, 0x40, 0x20, 0x1E, 0xFC, 0x22, 0x22,
0x22, 0x22, 0x40, 0x42, 0x42, 0x44, 0x78, 0x20, 0x40, 0x20, 0x10, 0x0C,
0x4C, 0x40, 0xFE, 0x40, 0x4C, 0x40, 0x48, 0x44, 0x4A, 0x70, 0x00, 0x54,
0x54, 0x54, 0x02, 0x1C, 0x24, 0x44, 0x04, 0x0E, 0x02, 0x14, 0x08, 0x14,
0x60, 0x50, 0x7C, 0x52, 0x52, 0x52, 0x20, 0xFE, 0x20, 0x28, 0x30, 0x02,
0x42, 0x42, 0x7E, 0x02, 0x52, 0x52, 0x52, 0x52, 0x7E, 0x20, 0xA0, 0xA2,
0xA4, 0x38, 0xF0, 0x02, 0x04, 0xF8, 0x00, 0x3E, 0x00, 0x7E, 0x02, 0x0C,
0x7E, 0x02, 0x04, 0x08, 0x10, 0x7E, 0x42, 0x42, 0x42, 0x7E, 0x70, 0x40,
0x42, 0x44, 0x78, 0x42, 0x42, 0x02, 0x04, 0x18, 0x40, 0x20, 0x80, 0x40,
0x00, 0xE0, 0xA0, 0xE0, 0x00, 0x00, 0x1C, 0x22, 0x12, 0x0C, 0x32, 0x04,
0xAA, 0x2A, 0xAA, 0x1E, 0x3E, 0x54, 0x54, 0x54, 0x28, 0x14, 0x2A, 0x2A,
0x22, 0x04, 0x7E, 0x08, 0x08, 0x10, 0x78, 0x1C, 0x22, 0x32, 0x2A, 0x24,
0x1E, 0x28, 0x48, 0x48, 0x30, 0x10, 0x2A, 0x2A, 0x2A, 0x3C, 0x04, 0x02,
0x3C, 0x20, 0x20, 0x40, 0x40, 0x00, 0xE0, 0x00, 0x04, 0x02, 0x22, 0xBC,
0x00, 0xA0, 0x40, 0xA0, 0x00, 0x00, 0x18, 0x24, 0x7E, 0x24, 0x08, 0x28,
0xFE, 0x2A, 0x02, 0x02, 0x3E, 0x90, 0xA0, 0xA0, 0x1E, 0x1C, 0xA2, 0x22,
0xA2, 0x1C, 0x7E, 0x28, 0x48, 0x48, 0x30, 0x30, 0x48, 0x48, 0x28, 0x7E,
0x3C, 0x52, 0x52, 0x52, 0x3C, 0x0C, 0x14, 0x08, 0x14, 0x18, 0x1A, 0x26,
0x20, 0x26, 0x1A, 0x3C, 0x82, 0x02, 0x84, 0x3E, 0xC6, 0xAA, 0x92, 0x82,
0x82, 0x22, 0x3C, 0x20, 0x3E, 0x22, 0xA2, 0x94, 0x88, 0x94, 0xA2, 0x30,
0x0A, 0x0A, 0x0A, 0x3C, 0x28, 0x28, 0x3E, 0x28, 0x48, 0x22, 0x3C, 0x28,
0x28, 0x2E, 0x3E, 0x28, 0x38, 0x28, 0x3E, 0x10, 0x10, 0x54, 0x10, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE };
uint16_t lcdInitMacro[] = { // DogXL160 Initialization Commands
setComEndH, setComEndL, setLCDMappingControl, setScrollLineLSB,
setScrollLineMSB, setPanelLoading, setLCDBiasRatio,
setVbiasPotentiometerH, setVbiasPotentiometerL,
setRAMAddressControl, setDisplayEnable };
void clearLCD(unsigned char *buffer);
void initLCD(unsigned char *buffer);
void allPixelsOnLCD(unsigned char *buffer);
void resetLCD(unsigned char *buffer);
void writeLCD(unsigned char row, unsigned char col, unsigned short f,
unsigned char *buffer);
void writeStringLCD(unsigned char y, unsigned char x, char word[],
unsigned char *buffer);
void sendDataLCD(uint16_t* SData, unsigned short i, unsigned char *buffer);
void setPageAddressLCD(unsigned char PA, unsigned char *buffer);
void setColumnAdressLCD(unsigned char CA, unsigned char *buffer);
/*
* Function for initiating LCD
* init - pointer to void that contains the initialized value
*/
void initLCD(unsigned char *buffer) {
sendDataLCD(lcdInitMacro, 11, buffer);
}
/*
* Function for sending data to LCD through I2C
* unsigned char* SData-pointer to the Data to be written to the LCD
* uint i-number of the Datas to be written to the LCD
*/
void sendDataLCD(uint16_t* SData, unsigned short i, unsigned char *buffer) {
i2c_send_sequence(SData, i, buffer, LPM0_BITS); //ok
}
/*
* Function for setting page address
* unsigned char PA-page Address of the LCD RAM memory to be written
*/
void setPageAddressLCD(unsigned char PA, unsigned char *buffer) {
// static unsigned char const*suma=PA+pageAddress;
//static const unsigned char sum=PA+pageAddress;
//sum = (uint16_t) (PA + pageAddress);
uint16_t command[] = { pageAddress };
command[0] += PA;
// uint16_t Cmd[]={PA+pageAddress}; //ok
// uint16_t Cmd={(uint16_t)(PA+pageAddress)};
//&Cmd[0]=sum; //PA+pageAddress ; Page Address Command = Page Address Initial Command + Page Address
sendDataLCD(command, 1, buffer);
}
/*
* Function for setting column address of LCD RAM memory
* unsigned char CA-column Address of the LCD RAM memory to be written
*/
void setColumnAdressLCD(unsigned char CA, unsigned char *buffer) {
unsigned char H = 0x00, L = 0x00;
uint16_t columnAddress[] = { 0x78, columnLSB0, columnMSB0 };
L = (CA & 0x0F); //separate Command Address to low and high
H = (CA & 0xF0);
H = (H >> 4);
columnAddress[1] = (columnLSB0 + L); //column address CommandLSB = Column Address Initial Command
//+column address bits 0..3
columnAddress[2] = (columnMSB0 + H); //column address CommandMSB = Column Address Initial Command
//+column address bits 4..7
sendDataLCD(columnAddress, 3, buffer);
}
/*
* Function for setting all pixels on
*/
void allPixelsOnLCD(unsigned char *buffer) {
uint16_t Cmd[] = { 0x78, setAllPixelsOn };
sendDataLCD(Cmd, 2, buffer);
}
/*
* Function for resetting system
*/
void resetLCD(unsigned char *buffer) {
uint16_t Cmd[] = { 0x78, systemReset };
sendDataLCD(Cmd, 2, buffer);
}
/*
* Function for setting all pixels off
*/
void clearLCD(unsigned char *buffer) {
uint16_t lcdData[] = { 0x78, 0x00 };
unsigned char p = 0, c;
for (p = 26; p > 0; p--) { //25 pages
for (c = 160; c > 0; c--) { //160 columns
setPageAddressLCD(0x00 + p, buffer);
setColumnAdressLCD(0x00 + c, buffer);
sendDataLCD(lcdData, 2, buffer);
}
}
}
/*
* Function for writing fonts from array to LCD
*
* unsigned char row-page Address
* unsigned char col-column Address
* unsigned short f-pointer to the font to be written to the LCD
*/
void writeLCD(unsigned char row, unsigned char col, unsigned short f,
unsigned char *buffer) { //each font consists of 5 columns of 2 pages
//each page presents 4 pixels
uint16_t lcdData[3]; //pointer to the both pages of a column
uint16_t* ptr;
unsigned char H = 0x00, L = 0x00, c;
for (c = 0; c < 5; c++) { //font block size 5 columns
L = (fonts[f + c] & 0x0F); //LSB 4 pixels are saved to L
H = (fonts[f + c] & 0xF0); //MSB 4 pixels are saved to H
H = (H >> 4);
lcdData[1] = 0x00;
lcdData[2] = 0x00;
if ((H & 0x01) == 0x01) { //each pixel in the H is converted to 2 bits, 11 pixel on - 00 pixel off
lcdData[1] = lcdData[1] + 0xC0;
};
if ((H & 0x02) == 0x02) {
lcdData[1] = lcdData[1] + 0x30;
};
if ((H & 0x04) == 0x04) {
lcdData[1] = lcdData[1] + 0x0C;
};
if ((H & 0x08) == 0x08) {
lcdData[1] = lcdData[1] + 0x03;
};
if ((L & 0x01) == 0x01) { //each pixel in the L is converted to 2 bits, 11 pixel on - 00 pixel off
lcdData[2] = lcdData[2] + 0xC0;
};
if ((L & 0x02) == 0x02) {
lcdData[2] = lcdData[2] + 0x30;
};
if ((L & 0x04) == 0x04) {
lcdData[2] = lcdData[2] + 0x0C;
};
if ((L & 0x08) == 0x08) {
lcdData[2] = lcdData[2] + 0x03;
};
unsigned char p;
uint16_t probne[]={0x78,0x10, 0x14, 0x18, 0x02};
for (p = 0; p < 2; p++) { //font page size 2 pages
ptr = lcdData + p;
setPageAddressLCD(0x00 + p + row, buffer);
setColumnAdressLCD(0x00 + c + col, buffer);
sendDataLCD(ptr, 1, buffer); //column that consists of two pages is sent to the LCD
}
}
}
/*
* Function for writing String to LCD
*
* unsigned char y-page address
* unsigned char x-column address
* char world[]-pointer to the String to be written to the LCD
*/
void writeStringLCD(unsigned char y, unsigned char x, char word[],
unsigned char *buffer) {
unsigned char k, a = 0;
do { //writes a font to a block of 8x5 Pixels
k = word[a];
writeLCD(y, x, 5 * k, buffer);
x = x + 6; //points to the next Block
a++;
k = word[a];
} while (k != 0); //writes until the end of the String
}
Last edited by a moderator: