Adding default contrast function for LCD

Author: gabrielmcf

fw/application/src/boards/board_lcd.h

@@ -47,6 +47,7 @@
 #define LCD_RESET_PIN 29
 #define LCD_BL_PIN 30
 #define LCD_DC_PIN 28 // green wire (DC)
+#define LCD_DEFAULT_CONTRAST 128
 
 
 // VFS driver

fw/application/src/mui/mui_u8g2.c

@@ -195,6 +195,7 @@ void mui_u8g2_init(u8g2_t *p_u8g2) {
     u8g2_Setup_st7567_enh_dg128064_f(p_u8g2, U8G2_R0, u8x8_HW_com_spi_nrf52832, u8g2_nrf_gpio_and_delay_spi_cb);
     u8g2_InitDisplay(p_u8g2);
     u8g2_SetPowerSave(p_u8g2, 0);
+    mui_u8g2_set_lcd_default_contrast_level();
 
     pwm_init();
 #endif
@@ -239,6 +240,11 @@ void mui_u8g2_set_backlight_level(uint8_t value) {
 }
 int8_t mui_u8g2_get_backlight_level(void) { return (int8_t)app_pwm_channel_duty_get(&pwm1, 0); }
 
+void mui_u8g2_set_lcd_default_contrast_level(void) {
+    mui_t *p_mui = mui();
+    u8g2_SetContrast(&p_mui->u8g2, LCD_DEFAULT_CONTRAST);
+}
+
 #endif
 
 #ifdef OLED_SCREEN

fw/application/src/mui/mui_u8g2.h

@@ -12,6 +12,8 @@ uint8_t mui_u8g2_get_backlight();
 
 void mui_u8g2_set_backlight_level(uint8_t bl);
 int8_t mui_u8g2_get_backlight_level(void);
+void mui_u8g2_set_lcd_default_contrast_level(void);
 
 void mui_u8g2_set_oled_contrast_level(uint8_t value);
+
 #endif