Posted on January 01, 2015 at 18:03 Hello, I have bought a LCD NHD-C12864LZ-FSW-FBW-3V3 with ST7565R.
I use the SPI transmission, with the my STM32VLDISCOVERY board (STM32F100RB) and I do not know why when make the initialization appear few pixels ON. This pixels appear to command ''DISPLAY ON = 0xAF''.
Can you help me ? .
This is my initialization:
void lcd_init(void)
{
LCD_A0_L();
LCD_N_CS1_L();
LCD_N_RES_H();
delay_ms(500);
// Do a hard reset of the LCD display controller
LCD_N_RES_L();
delay_ms(500);
LCD_N_RES_H();
delay_ms(500);
lcd_cmd_out(0xE2);
lcd_cmd_out(0XA2);
lcd_cmd_out(0XA0);
lcd_cmd_out(0XC8);
lcd_cmd_out(0XA4);
lcd_cmd_out(0XA6);
lcd_cmd_out(0X23);
lcd_cmd_out(0X81);
lcd_cmd_out(0X20);
lcd_cmd_out(0X2F);
lcd_cmd_out(0X40);
lcd_cmd_out(0XAF); // here appear pixels on my LCD
delay_ms(500);
}
When sending the command '' CMD_SET_ALLPTS_ON = 0xA5 '' (All points on ) it is ok. As the attached image.
But when sending the command '' CMD_SET_ALLPTS_NORMAL = 0xA4 '' (All points off) it is not ok. As the attached image.
Can you help me ?
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Attachments : 20141229_004433.jpg :
https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I16M&d=%2Fa%2F0X0000000biN%2F9LGUiIqm70Rnn8FEAUSfgGHWWTZXXZloN9taNpQNYN0&asPdf=false20141229_004704.jpg :
https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I16C&d=%2Fa%2F0X0000000biM%2FYZ1JHIycycFrJC2ACFsYp1e1k7RNGfzSL0SltoDikUU&asPdf=false
