Other Parts Discussed in Thread: MSP430F2618
Hello Sir/Madam,
I am using MSP430F2618, and i tried to interface LCD to the device. The program built successfully( am using CCSv4 Core edition) but when i run it i get an error, I do not know why the error, here's the text in the console...
MSP430: Program loaded. Code Size - Text: 290 bytes Data: 2 bytes
MSP430: Trouble Reading Memory Block at 0x30f8 on Page 0 of Length 0x3: Could not determine device state
MSP430: Trouble Reading Memory Block at 0x3120 on Page 0 of Length 0xe: No error
my program is...
#include <msp430x26x.h>
#include<string.h>
#include<stdio.h>
#define en (0x04)
#define rw (0x02)
#define rs (0x01)
void lcd_init(void);
void lcd_cmd(unsigned char val);
void lcd_data(unsigned char val, unsigned char line);
void lcd_delay(unsigned int i);
void lcd_string(unsigned char *p,unsigned char v);
void main(void)
{
//unsigned char a[] = "Hello";
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
lcd_init();
lcd_data(0x31,1);
}
void lcd_delay(unsigned int i)
{
unsigned int j,k;
for(j = 0; j<i ; j++)
for(k = 0; k<2000; k++);
}
void lcd_cmd(unsigned char val)
{
lcd_delay(1);
P7DIR = 0xFF;
P7OUT = val;
P8OUT |= en;
lcd_delay(1);
P8OUT &= ~rs;
lcd_delay(1);
P8OUT &= ~en;
return;
}
void lcd_data(unsigned char val, unsigned char line)
{
if(line)
lcd_cmd(0XC0);
else
lcd_cmd(0x80);
P7OUT = val;
P8OUT |= (rs | en); //E = 1, RS = 1
lcd_delay(1);
P8OUT &=(~en); //E = 0, R/W = 0, RS = 1
return;
}
void lcd_string(unsigned char *var, unsigned char v)
{
while(*var) //till string ends
lcd_data(*var++,v); //send characters one by one
}
void lcd_init()
{
P7DIR = 0xFF; // D0 to D7 connected to Port 7,output pins
P8DIR |= (en | rw | rs); // P8.0 = RS, P8.1 = R/W, P8.2 = E
P8OUT &= (~en);
P8OUT &= (~rw);
lcd_cmd(0x38); // Function set - 8bit, 5x7 dots, 2 line
lcd_delay(250);
lcd_cmd(0x0E); // Display on/off ctrl - disp on,cursor on,blink off
lcd_delay(250);
lcd_cmd(0x01); // Clear Display
lcd_delay(250);
lcd_cmd(0x06); // Entry mode set - increment cursor(shift right)
lcd_delay(250);
}
I got a similar error when i tried the code ADC12_09.c from the code examples...
MSP430: Program loaded. Code Size - Text: 118 bytes Data: 4 bytes
MSP430: Trouble Reading Memory Block at 0x30fc on Page 0 of Length 0x3: Could not determine device state