bool nrf6350_lcd_init(void)
{
if (!twi_master_init())
return false;
// Sometimes the first command doesn't get through, so we'll try
// sending non-important command first and don't care if it fails.
(void)nrf6350_lcd_clear();
if (!nrf6350_lcd_set_instruction(0x38)) // Function set
return false;
if (!nrf6350_lcd_set_instruction(0x39)) // Choose two-line mode
return false;
if (!nrf6350_lcd_set_instruction(0x14)) // Internal OSC frequency
return false;
if (!nrf6350_lcd_set_contrast(LCD_CONTRAST_HIGH)) // Contrast set (low byte)
return false;
if (!nrf6350_lcd_set_instruction(0x5F)) // Power/ICON control/
return false;
if (!nrf6350_lcd_set_instruction(0x6A)) // Follower control
return false;
nrf_delay_us(200000); // Need to wait 200ms here according to datasheet
if (!nrf6350_lcd_on()) // Display ON
return false;
if (!nrf6350_lcd_clear()) // Clear display
return false;
return nrf6350_lcd_set_instruction(0x06); // Entry mode set
}
/*
* Display text of the correct section with correct offset on the display
*/
static void display_text(void)
{
if(!nrf6350_lcd_clear())
{
show_error();
}
if(in_menu)
{
if(!nrf6350_lcd_write_string(&help_menu[current_menu_pos][current_scroll_pos], MAX_CHARACTERS_PER_LINE, LCD_UPPER_LINE, 0))
{
show_error();
}
}
else
{
if(p_variables[current_menu_pos] != 0)
{
char buffer[3];
sprintf(buffer, "%lu", (int32_t)(*(uint8_t *)p_variables[current_menu_pos]));
if(!nrf6350_lcd_write_string(buffer, 3, LCD_UPPER_LINE, 7))
{
show_error();
}
}
}
}
bool nrf6350_lcd_init(void)
{
if (!twi_master_init())
return false;
if (!nrf6350_lcd_set_instruction(0x38)) // Function set
return false;
if (!nrf6350_lcd_set_instruction(0x39)) // Choose two-line mode
return false;
if (!nrf6350_lcd_set_instruction(0x14)) // Internal OSC frequency
return false;
if (!nrf6350_lcd_set_contrast(LCD_CONTRAST_HIGH)) // Contrast set (low byte)
return false;
if (!nrf6350_lcd_set_instruction(0x5F)) // Power/ICON control/
return false;
if (!nrf6350_lcd_set_instruction(0x6A)) // Follower control
return false;
nrf_delay_us(200000); // Need to wait 200ms here according to datasheet
if (!nrf6350_lcd_on()) // Display ON
return false;
if (!nrf6350_lcd_clear()) // Clear display
return false;
return nrf6350_lcd_set_instruction(0x06); // Entry mode set
}
