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lcd project at stm32

Hi, I'm new in embedded system,I've stm32f100rb and I want to display a string at an lcd named jhd162a 16x2, but when I test it, the lcd always display a black line,I test it with an empty board and it's the same problem, one black line.
anyone have an idea please???
and thank you.

Parents

0 Sahsinho Houssem over 12 years ago in reply to Sahsinho Houssem

main.c

#include <stddef.h>
#include "stm32f10x_rcc.h"
#include "stm32f10x_gpio.h"
#include "lcd_hd44780_lib.h"
#include "STM32vldiscovery.h"

int main(void)
{

        RCC_PLLConfig (0x00010000, RCC_PLLMul_2);
        lcd_init();



          while (1)
          {

                  lcd_locate(1,0);
                  lcd_str("ENSI");
                  lcd_locate(7,0);
                  lcd_str("STM32F1");
                  lcd_locate(0,1);
                  lcd_str("electronics");

          }

}

Reply

0 Sahsinho Houssem over 12 years ago in reply to Sahsinho Houssem

main.c

#include <stddef.h>
#include "stm32f10x_rcc.h"
#include "stm32f10x_gpio.h"
#include "lcd_hd44780_lib.h"
#include "STM32vldiscovery.h"

int main(void)
{

        RCC_PLLConfig (0x00010000, RCC_PLLMul_2);
        lcd_init();



          while (1)
          {

                  lcd_locate(1,0);
                  lcd_str("ENSI");
                  lcd_locate(7,0);
                  lcd_str("STM32F1");
                  lcd_locate(0,1);
                  lcd_str("electronics");

          }

}

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