ESP32S3+HX8347+3线SPI运行LVGL例程
一、clone lv_port_esp32到本地
git clone https://github.com/lvgl/lv_port_esp32.git
二、增加hx8347.c、hx8347.h
components\lvgl_esp32_drivers\lvgl_tft下新增2个文件：hx8347.c、hx8347.h。因为lv_port_esp32中没有hx8347的驱动，需要自己写。这两个hx8347.c、hx8347.h修改HX8357的配置文件改的，有很多冗余信息，不影响使用。
hx8347.h
/**
* @file HX8347.h
*
* Roughly based on the Adafruit_HX8347_Library
*
* This library should work with:
* Adafruit 3.5" TFT 320x480 + Touchscreen Breakout
* http://www.adafruit.com/products/2050
*
* Adafruit TFT FeatherWing - 3.5" 480x320 Touchscreen for Feathers
* https://www.adafruit.com/product/3651
*
*/
#ifndef HX8347_H
#define HX8347_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include
#include
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif
#include "../lvgl_helpers.h"
/*********************
* DEFINES
*********************/
#define HX8347_DC CONFIG_LV_DISP_PIN_DC
#define HX8347_RST CONFIG_LV_DISP_PIN_RST
#define HX8347_BCKL CONFIG_LV_DISP_PIN_BCKL
#define HX8347_CS 6//CONFIG_LV_DISP_SPI_CS
#define HX8347_ENABLE_BACKLIGHT_CONTROL CONFIG_LV_ENABLE_BACKLIGHT_CONTROL
#define HX8347_INVERT_COLORS CONFIG_LV_INVERT_COLORS
#if CONFIG_LV_BACKLIGHT_ACTIVE_LVL
#define HX8347_BCKL_ACTIVE_LVL 1
#else
#define HX8347_BCKL_ACTIVE_LVL 0
#endif
/*******************
* HX8347B/D REGS
*********************/
#define HX8347D 0xD ///< Our internal const for D type
#define HX8347B 0xB ///< Our internal const for B type
#define HX8347_TFTWIDTH 320 ///< 320 pixels wide
#define HX8347_TFTHEIGHT 240 ///< 480 pixels tall
#define HX8347_NOP 0x00 ///< No op
#define HX8347_SWRESET 0x01 ///< software reset
#define HX8347_RDDID 0x04 ///< Read ID
#define HX8347_RDDST 0x09 ///< (unknown)
#define HX8347_RDPOWMODE 0x0A ///< Read power mode Read power mode
#define HX8347_RDMADCTL 0x0B ///< Read MADCTL
#define HX8347_RDCOLMOD 0x0C ///< Column entry mode
#define HX8347_RDDIM 0x0D ///< Read display image mode
#define HX8347_RDDSDR 0x0F ///< Read dosplay signal mode
#define HX8347_SLPIN 0x10 ///< Enter sleep mode
#define HX8347_SLPOUT 0x11 ///< Exit sleep mode
#define HX8347B_PTLON 0x12 ///< Partial mode on
#define HX8347B_NORON 0x13 ///< Normal mode
#define HX8347_INVOFF 0x20 ///< Turn off invert
#define HX8347_INVON 0x21 ///< Turn on invert
#define HX8347_DISPOFF 0x28 ///< Display on
#define HX8347_DISPON 0x29 ///< Display off
#define HX8347_CASET 0x2A ///< Column addr set
#define HX8347_PASET 0x2B ///< Page addr set
#define HX8347_RAMWR 0x2C ///< Write VRAM
#define HX8347_RAMRD 0x2E ///< Read VRAm
#define HX8347B_PTLAR 0x30 ///< (unknown)
#define HX8347_TEON 0x35 ///< Tear enable on
#define HX8347_TEARLINE 0x44 ///< (unknown)
#define HX8347_MADCTL 0x16 ///< Memory access control
#define HX8347_COLMOD 0x3A ///< Color mode
#define HX8347_SETOSC 0xB0 ///< Set oscillator
#define HX8347_SETPWR1 0xB1 ///< Set power control
#define HX8347B_SETDISPLAY 0xB2 ///< Set display mode
#define HX8347_SETRGB 0xB3 ///< Set RGB interface
#define HX8347D_SETCOM 0xB6 ///< Set VCOM voltage
#define HX8347B_SETDISPMODE 0xB4 ///< Set display mode
#define HX8347D_SETCYC 0xB4 ///< Set display cycle reg
#define HX8347B_SETOTP 0xB7 ///< Set OTP memory
#define HX8347D_SETC 0xB9 ///< Enable extension command
#define HX8347B_SET_PANEL_DRIVING 0xC0 ///< Set panel drive mode
#define HX8347D_SETSTBA 0xC0 ///< Set source option
#define HX8347B_SETDGC 0xC1 ///< Set DGC settings
#define HX8347B_SETID 0xC3 ///< Set ID
#define HX8347B_SETDDB 0xC4 ///< Set DDB
#define HX8347B_SETDISPLAYFRAME 0xC5 ///< Set display frame
#define HX8347B_GAMMASET 0xC8 ///< Set Gamma correction
#define HX8347B_SETCABC 0xC9 ///< Set CABC
#define HX8347_SETPANEL 0xCC ///< Set Panel
#define HX8347B_SETPOWER 0xD0 ///< Set power control
#define HX8347B_SETVCOM 0xD1 ///< Set VCOM
#define HX8347B_SETPWRNORMAL 0xD2 ///< Set power normal
#define HX8347B_RDID1 0xDA ///< Read ID #1
#define HX8347B_RDID2 0xDB ///< Read ID #2
#define HX8347B_RDID3 0xDC ///< Read ID #3
#define HX8347B_RDID4 0xDD ///< Read ID #4
#define HX8347D_SETGAMMA 0xE0 ///< Set Gamma
#define HX8347B_SETGAMMA 0xC8 ///< Set Gamma
#define HX8347B_SETPANELRELATED 0xE9 ///< Set panel related
/**********************
* TYPEDEFS
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
void hx8347_init(void);
void hx8347_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);
void hx8347_enable_backlight(bool backlight);
void hx8347_set_rotation(uint8_t r);
/**********************
* MACROS
**********************/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /*HX8347_H*/
hx8347.c
/**
* @file HX8347.c
*
* Roughly based on the Adafruit_HX8347_Library
*
* This library should work with:
* Adafruit 3.5" TFT 320x480 + Touchscreen Breakout
* http://www.adafruit.com/products/2050
*
* Adafruit TFT FeatherWing - 3.5" 480x320 Touchscreen for Feathers
* https://www.adafruit.com/product/3651
*
*/
/*********************
* INCLUDES
*********************/
#include "hx8347.h"
#include "disp_spi.h"
#include "driver/gpio.h"
#include "rom/gpio.h"
#include
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
/*********************
* DEFINES
*********************/
#define TAG "HX8347"
#define MADCTL_MY 0x80 ///< Bottom to top
#define MADCTL_MX 0x40 ///< Right to left
#define MADCTL_MV 0x20 ///< Reverse Mode
#define MADCTL_ML 0x10 ///< LCD refresh Bottom to top
#define MADCTL_RGB 0x00 ///< Red-Green-Blue pixel order
#define MADCTL_BGR 0x08 ///< Blue-Green-Red pixel order
//#define MADCTL_MH 0x04 ///< LCD refresh right to left
/**********************
* TYPEDEFS
**********************/
/*The LCD needs a bunch of command/argument values to be initialized. They are stored in this struct. */
typedef struct {
uint8_t cmd;
uint8_t data[16];
uint8_t databytes; //No of data in data; bit 7 = delay after set; 0xFF = end of cmds.
} lcd_init_cmd_t;
/**********************
* STATIC PROTOTYPES
**********************/
static void hx8347_send_cmd(uint8_t cmd);
static void hx8347_send_data(void * data, uint16_t length);
static void hx8347_send_color(void * data, uint16_t length);
static void hx8347_send_16bit(uint8_t d1,uint8_t d2);
/**********************
* INITIALIZATION ARRAYS
**********************/
// Taken from the Adafruit driver
static const uint8_t
initb[] = {
//Driving ability Setting
0xEA,1,0x00, //PTBA[15:8]
0xEB,1,0x20, //PTBA[7:0]
0xEC,1,0x0C, //STBA[15:8]
0xED,1,0xC4, //STBA[7:0]
0xE8,1,0x40, //OPON[7:0]
0xE9,1,0x38, //OPON1[7:0]
0xF1,1,0x01, //OTPS1B
0xF2,1,0x10, //GEN
0x27,1,0xA3,
//Gamma 2.2 Setting
0x40,1,0x01, //
0x41,1,0x00, //
0x42,1,0x00, //
0x43,1,0x10, //
0x44,1,0x0E, //
0x45,1,0x24, //
0x46,1,0x04, //
0x47,1,0x50, //
0x48,1,0x02, //
0x49,1,0x13, //
0x4A,1,0x19, //
0x4B,1,0x19, //
0x4C,1,0x16, //
0x50,1,0x1B, //
0x51,1,0x31, //
0x52,1,0x2F, //
0x53,1,0x3F, //
0x54,1,0x3F, //
0x55,1,0x3E, //
0x56,1,0x2F, //
0x57,1,0x7B, //
0x58,1,0x09, //
0x59,1,0x06, //
0x5A,1,0x06, //
0x5B,1,0x0C, //
0x5C,1,0x1D, //
0x5D,1,0xCC, //
// Window setting
//#if (DISP_ORIENTATION == 0)
// 0x04,1,0x00,
// 0x05,1,0xEF,
// 0x08,1,0x01,
// 0x09,1,0x3F,
//#else
// 0x04,1,0x01,
// 0x05,1,0x3F,
// 0x08,1,0x00,
// 0x09,1,0xEF,
//#endif
//Power Voltage Setting
0x1B,1,0x1B, //VRH=4.65V
0x1A,1,0x01, //BT (VGH~15V,VGL~-10V,DDVDH~5V)
0x24,1,0x15, //VMH(VCOM High voltage ~3.2V)
0x25,1,0x50, //VML(VCOM Low voltage -1.2V)
0x23,1,0x88, //for Flicker adjust //can reload from OTP
//Power on Setting
0x18,1,0x36, // I/P_RADJ,N/P_RADJ, Normal mode 60Hz
0x19,1,0x01, //OSC_EN='1', start Osc
0x01,1,0x00, //DP_STB='0', out deep sleep
0x1F,1,0x88,// GAS=1, VOMG=00, PON=0, DK=1, XDK=0, DVDH_TRI=0, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0x80,// GAS=1, VOMG=00, PON=0, DK=0, XDK=0, DVDH_TRI=0, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0x90,// GAS=1, VOMG=00, PON=1, DK=0, XDK=0, DVDH_TRI=0, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0xD0,// GAS=1, VOMG=10, PON=1, DK=0, XDK=0, DDVDH_TRI=0, STB=0
0xFF, 0x80 + 50/5,
//262k/65k color selection
0x17,1,0x05, //default 0x06 262k color // 0x05 65k color
//SET PANEL
0x36,1,0x00, //SS_P, GS_P,REV_P,BGR_P
//Display ON Setting
0x28,1,0x38, //GON=1, DTE=1, D=1000
0xFF, 0x80 + 50/5,
0x28,1,0x3C, //GON=1, DTE=1, D=1100
0x16,1,0x38, // MY=0, MX=1, MV=1, BGR=1
// 0x16,1,0x80, // MY=1, MX=0, MV=0,竖屏时去掉注释
//Set GRAM Area
0x02,1,0x00,
0x03,1,0x00, //Column Start
0x04,1,0x00,
0x05,1,0xEF, //Column End
0x06,1,0x00,
0x07,1,0x00, //Row Start
0x08,1,0x01,
0x09,1,0x3F, //Row End
// 0x0a,1,0x00,
// 0x0b,1,0xef,
// 0x0c,1,0x00,
// 0x0d,1,0x00,
// //************* Start Initial Sequence **********//
// 0x2e,1,0x79,
// 0xee,1,0x0c,
// //Driving ability Setting
// 0xea,1,0x00,
// 0xeb,1,0x20,
// 0xec,1,0x08,
// 0xed,1,0xc4,
// 0xe8,1,0x40,
// 0xe9,1,0x38,
// 0xf1,1,0x01,
// 0xf2,1,0x10,
// 0x27,1,0xa3,
// //Gamma 2.2 Setting
// 0x40,1,0x01,
// 0x41,1,0x07,
// 0x42,1,0x07,
// 0x43,1,0x13,
// 0x44,1,0x11,
// 0x45,1,0x24,
// 0x46,1,0x10,
// 0x47,1,0x57,
// 0x48,1,0x09,
// 0x49,1,0x14,
// 0x4a,1,0x19,
// 0x4b,1,0x19,
// 0x4c,1,0x16,
// 0x50,1,0x1b,
// 0x51,1,0x2e,
// 0x52,1,0x2c,
// 0x53,1,0x38,
// 0x54,1,0x38,
// 0x55,1,0x3e,
// 0x56,1,0x2a,
// 0x57,1,0x6f,
// 0x58,1,0x09,
// 0x59,1,0x06,
// 0x5a,1,0x06,
// 0x5b,1,0x0b,
// 0x5c,1,0x16,
// 0x5d,1,0xcc,
// //Power Voltage Setting
// 0x1b,1,0x1b,
// 0x1a,1,0x01,
// 0x24,1,0x29,
// 0x25,1,0x57,
// //****VCOM offset**///
// 0x23,1,0x8a,
// //Power on Setting
// 0x18,1,0x36,
// 0x19,1,0x01,
// 0x01,1,0x00,
// 0x1f,1,0x88,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0x80,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0x90,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0xd0,
// 0xFF, 0x80 + 50/5,
// //262k/65k color selection
// 0x17,1,0x05,
// //SET PANEL
// 0x36,1,0x00,
// //Display ON Setting
// 0x28,1,0x38,
// 0xFF, 0x80 + 50/5,
// 0x28,1,0x3c,
// //设置2.8寸的GAMA参数
// 0x46,1,0x94,
// 0x47,1,0x41,
// 0x48,1,0x00,
// 0x49,1,0x33,
// 0x4a,1,0x23,
// 0x4b,1,0x45,
// 0x4c,1,0x44,
// 0x4d,1,0x77,
// 0x4e,1,0x12,
// 0x4f,1,0xcc,
// 0x50,1,0x46,
// 0x51,1,0x82,
// //320*240 peixl setting
// 0x02,1,0x00,
// 0x03,1,0x00,
// 0x04,1,0x00,
// 0x05,1,0xef,
// 0x06,1,0x00,
// 0x07,1,0x00,
// 0x08,1,0x01,
// 0x09,1,0x3f,
// //Display setting
// 0x01,1,0x06,
// 0x16,1,0xc8,
// 0x23,1,0x95,
// 0x24,1,0x95,
// 0x25,1,0xFF,
// 0x27,1,0x02,
// 0x28,1,0x02,
// 0x29,1,0x02,
// 0x2a,1,0x02,
// 0x2C,1,0x02,
// 0x2d,1,0x02,
// 0x3a,1,0x01,
// 0x3b,1,0x01,
// 0x3c,1,0xf0,
// 0x3d,1,0x00,
// 0xFF, 0x80 + 50/5,
// 0x35,1,0x38,
// 0x36,1,0x78,
// 0x3E,1,0x3,
// 0x40,1,0x0F,
// 0x41,1,0xF0,
// //power supply setting
// 0x19,1,0x49,
// 0x93,1,0x0F,
// 0xFF, 0x80 + 50/5,
// 0x20,1,0x40,
// 0x1D,1,0x07,
// 0x1E,1,0x00,
// 0x1F,1,0x03,
// //VCOM SETTING FOR 2.4' PANNNEL'
// 0x44,1,0x42,
// 0x45,1,0x11,
// 0xFF, 0x80 + 50/5,
// 0x1C,1,0x04,
// 0xFF, 0x80 + 50/5,
// 0x43,1,0x80,
// 0xFF, 0x80 + 50/5,
// 0x1B,1,0x08,
// 0xFF, 0x80 + 50/5,
// // Display ON Setting
// 0x90,1,0x7F,
// 0x26,1,0x04,
// 0xFF, 0x80 + 50/5,
// 0x26,1,0x24,
// 0x26,1,0x2C,
// 0xFF, 0x80 + 50/5,
// 0x26,1,0x3C,
// // Fixed the read data issue
// 0x57,1,0x02,
// 0x56,1,0x02,
// 0x57,1,0x00,
// //Driving ability Setting
// 0xEa,1,0x00,
// 0xeb,1,0x20,
// 0xec,1,0x0c,
// 0xed,1,0xc4,
// 0xe8,1,0x38,
// 0xe9,1,0x10,
// 0xf1,1,0x01,
// 0xf2,1,0x10,
// //Gamma 2.2 Setting
// 0x40,1,0x01,
// 0x41,1,0x00,
// 0x42,1,0x00,
// 0x43,1,0x10,
// 0x44,1,0x0e,
// 0x45,1,0x24,
// 0x46,1,0x04,
// 0x47,1,0x50,
// 0x48,1,0x02,
// 0x49,1,0x13,
// 0x4a,1,0x19,
// 0x4b,1,0x19,
// 0x4c,1,0x16,
// 0x50,1,0x1b,
// 0x51,1,0x31,
// 0x52,1,0x2f,
// 0x53,1,0x3f,
// 0x54,1,0x3f,
// 0x55,1,0x3e,
// 0x56,1,0x2f,
// 0x57,1,0x7b,
// 0x58,1,0x09,
// 0x59,1,0x06,
// 0x5a,1,0x06,
// 0x5b,1,0x0c,
// 0x5c,1,0x1d,
// 0x5d,1,0xcc,
// //Power Voltage Setting
// 0x1b,1,0x1b, //4.65v
// 0x1a,1,0x01,
// 0x24,1,0x2f,
// 0x25,1,0x57,
// //vcom offset
// 0x23,1,0x88,
// //Power on Setting
// 0x19,1,0x01,
// 0x01,1,0x00,
// 0x1f,1,0x88,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0x80,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0x90,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0xd0,
// 0xFF, 0x80 + 50/5,
// 0x17,1,0x60,
// 0x28,1,0x38,
// 0xFF, 0x80 + 50/5,
// 0x28,1,0x3f,
// 0x02,1,0x00,
// 0x03,1,0x00,
// 0x04,1,0x00,
// 0x05,1,0xef,
// 0x06,1,0x00,
// 0x07,1,0x00,
// 0x08,1,0x01,
// 0x09,1,0x3f,
// 0x28,1,0x38,
// 0xFF, 0x80 + 50/5,
// 0x1f,1,0x89,
// 0xFF, 0x80 + 50/5,
// 0x28,1,0x04,
// 0xFF, 0x80 + 50/5,
// 0x19,1,0x00,
// 0xFF, 0x80 + 50/5,
0 // END OF COMMAND LIST
}, initd[] = {
0x18,1,0x88, //UADJ 75Hz
0x19,1,0x01, //OSC_EN='1', start Osc
//Power Voltage Setting
0x1B,1,0x1E, //VRH=4.60V
0x1C,1,0x07, //AP Crosstalk 04
0x1A,1,0x01, //BT (VGH~15V,1,VGL~-10V,1,DDVDH~5V)
0x24,1,0x38, //VMH 27
0x25,1,0x5F, //VML
//VCOM offset
0x23,1,0x8C, //for Flicker adjust
0x1F,1,0x88,// GAS=1,1, VOMG=00,1, PON=0,1, DK=1,1, XDK=0,1, DVDH_TRI=0,1, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0x80,// GAS=1,1, VOMG=00,1, PON=0,1, DK=0,1, XDK=0,1, DVDH_TRI=0,1, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0x90,// GAS=1,1, VOMG=00,1, PON=1,1, DK=0,1, XDK=0,1, DVDH_TRI=0,1, STB=0
0xFF, 0x80 + 50/5,
0x1F,1,0xD0,// GAS=1,1, VOMG=10,1, PON=1,1, DK=0,1, XDK=0,1, DDVDH_TRI=0,1, STB=0
0xFF, 0x80 + 50/5,
//Display ON Setting
0x28,1,0x38, //GON=1,1, DTE=1,1, D=1000
0xFF, 0x80 + 400/5,
0x28,1,0x3C, //GON=1,1, DTE=1,1, D=1100
0x36,1,0x00, //REV,1, BGR
0x17,1,0x05, //16BIT/PIXEL
//Gamma 2.2 Setting
0x40,1,0x00, //
0x41,1,0x00, //
0x42,1,0x00, //
0x43,1,0x11, //
0x44,1,0x0e, //
0x45,1,0x23, //
0x46,1,0x08, //
0x47,1,0x53, //
0x48,1,0x03, //
0x49,1,0x11, //
0x4A,1,0x18, //
0x4B,1,0x1a, //
0x4C,1,0x16, //
0x50,1,0x1c, //
0x51,1,0x31, //
0x52,1,0x2e, //
0x53,1,0x3f, //
0x54,1,0x3f, //
0x55,1,0x3f, //
0x56,1,0x2c, //
0x57,1,0x77, //
0x58,1,0x09, //
0x59,1,0x05, //
0x5A,1,0x07, //
0x5B,1,0x0e, //
0x5C,1,0x1c, //
0x5D,1,0x88, //
0xFF, 0x80 + 100/5,
0, // END OF COMMAND LIST
};
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
static uint8_t displayType = HX8347B; //HX8347B:RGB
void lcd_cs_port(uint8_t status)
{
if (status) {
gpio_set_level(HX8347_CS, 1);
} else {
gpio_set_level(HX8347_CS, 0);
}
}
void hx8347_init(void)
{
//Initialize non-SPI GPIOs
//3线spi没有DC引脚
// gpio_pad_select_gpio(HX8347_DC);
// gpio_set_direction(HX8347_DC, GPIO_MODE_OUTPUT);
gpio_pad_select_gpio(HX8347_CS);
gpio_set_direction(HX8347_CS, GPIO_MODE_OUTPUT);
gpio_pad_select_gpio(HX8347_RST);
gpio_set_direction(HX8347_RST, GPIO_MODE_OUTPUT);
#if HX8347_ENABLE_BACKLIGHT_CONTROL
gpio_pad_select_gpio(HX8347_BCKL);
gpio_set_direction(HX8347_BCKL, GPIO_MODE_OUTPUT);
#endif
//Reset the display
gpio_set_level(HX8347_RST, 0);
vTaskDelay(10 / portTICK_PERIOD_MS);
gpio_set_level(HX8347_RST, 1);
vTaskDelay(120 / portTICK_PERIOD_MS);
ESP_LOGI(TAG, "Initialization.");
//Send all the commands
const uint8_t *addr = (displayType == HX8347B) ? initb : initd;
uint8_t cmd, x, numArgs;
while((cmd = *addr++) > 0) { // '0' command ends list
x = *addr++;
numArgs = x & 0x7F;
if (cmd != 0xFF) { // '255' is ignored
if (x & 0x80) { // If high bit set, numArgs is a delay time
hx8347_send_cmd(cmd);
} else {
hx8347_send_cmd(cmd);
hx8347_send_data((void *) addr, numArgs);
addr += numArgs;
}
}
if (x & 0x80) { // If high bit set...
vTaskDelay(numArgs * 5 / portTICK_PERIOD_MS); // numArgs is actually a delay time (5ms units)
}
}
//hx8347_set_rotation(2); //Portrait竖屏 选0或2；Landscape横屏 选1或3。
// #if HX8347_INVERT_COLORS
// hx8347_send_cmd(HX8347_INVON);
// #else
// hx8347_send_cmd(HX8347_INVOFF);
// #endif
//hx8347_enable_backlight(true);
}
void hx8347_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map)
{
uint32_t size = lv_area_get_width(area) * lv_area_get_height(area);
uint8_t data[34]={0};
/* Column addresses */
uint8_t xb[] = {
(uint8_t) (area->x1 >> 8) & 0xFF,
(uint8_t) (area->x1) & 0xFF,
(uint8_t) (area->x2 >> 8) & 0xFF,
(uint8_t) (area->x2) & 0xFF,
};
/* Page addresses */
uint8_t yb[] = {
(uint8_t) (area->y1 >> 8) & 0xFF,
(uint8_t) (area->y1) & 0xFF,
(uint8_t) (area->y2 >> 8) & 0xFF,
(uint8_t) (area->y2) & 0xFF,
};
//ESP_LOGI(TAG, "hx8347_flush X:%d,%d,%d,%d",xb[0],xb[1],xb[2],xb[3]);
//ESP_LOGI(TAG, "hx8347_flush Y:%d,%d,%d,%d",yb[0],yb[1],yb[2],yb[3]);
// /*Column addresses*/
// hx8347_send_cmd(0x02);
// hx8347_send_data(&xb[0], 1);
// hx8347_send_cmd(0x03);
// hx8347_send_data(&xb[1], 1);
// hx8347_send_cmd(0x04);
// hx8347_send_data(&xb[2], 1);
// hx8347_send_cmd(0x05);
// hx8347_send_data(&xb[3], 1);
// /*Page addresses*/
// hx8347_send_cmd(0x06);
// hx8347_send_data(&yb[0], 1);
// hx8347_send_cmd(0x07);
// hx8347_send_data(&yb[1], 1);
// hx8347_send_cmd(0x08);
// hx8347_send_data(&yb[2], 1);
// hx8347_send_cmd(0x09);
// hx8347_send_data(&yb[3], 1);
// /*Memory write*/
// hx8347_send_cmd(0x22);
data[0]=0x70; data[1]=0x02; data[2]=0x72; data[3]=xb[0];
data[4]=0x70; data[5]=0x03; data[6]=0x72; data[7]=xb[1];
data[8]=0x70; data[9]=0x04; data[10]=0x72;data[11]=xb[2];
data[12]=0x70;data[13]=0x05;data[14]=0x72;data[15]=xb[3];
data[16]=0x70; data[17]=0x06; data[18]=0x72; data[19]=yb[0];
data[20]=0x70; data[21]=0x07; data[22]=0x72; data[23]=yb[1];
data[24]=0x70; data[25]=0x08; data[26]=0x72; data[27]=yb[2];
data[28]=0x70; data[29]=0x09; data[30]=0x72; data[31]=yb[3];
data[32]=0x70; data[33]=0x22;
for(uint8_t i=0;i<17;i++)
{
lcd_cs_port(0);
//disp_spi_send_data(&data[2*i],2);
hx8347_send_16bit(data[2*i],data[2*i+1]);
lcd_cs_port(1);
}
hx8347_send_color(color_map, size * 2);
}
void hx8347_enable_backlight(bool backlight)
{
#if HX8347_ENABLE_BACKLIGHT_CONTROL
ESP_LOGD(TAG, "%s backlight.\n", backlight ? "Enabling" : "Disabling");
uint32_t tmp = 0;
#if (HX8347_BCKL_ACTIVE_LVL==1)
tmp = backlight ? 1 : 0;
#else
tmp = backlight ? 0 : 1;
#endif
gpio_set_level(HX8347_BCKL, tmp);
#endif
}
void hx8347_set_rotation(uint8_t r)
{
r = r & 3; // can't be higher than 3
switch(r) {
case 0:
r = MADCTL_MX | MADCTL_MY | MADCTL_RGB;
break;
case 1:
r = MADCTL_MV | MADCTL_MY | MADCTL_RGB;
break;
case 2:
r = MADCTL_RGB;
break;
case 3:
r = MADCTL_MX | MADCTL_MV | MADCTL_RGB;
break;
}
hx8347_send_cmd(HX8347_MADCTL);
hx8347_send_data(&r, 1);
}
/**********************
* STATIC FUNCTIONS
**********************/
static void hx8347_send_16bit(uint8_t d1,uint8_t d2)
{
uint8_t c[2];
c[0]=d1;
c[1]=d2;
lcd_cs_port(0);
disp_spi_send_data(&c, 2); //发送2字节
lcd_cs_port(1);
}
static void hx8347_send_cmd(uint8_t cmd)
{
uint8_t c;
c=0x70;
hx8347_send_16bit(c,cmd);
// lcd_cs_port(0);
// disp_spi_send_data(&c, 1); //Command mode
// disp_spi_send_data(&cmd, 1);
// lcd_cs_port(1);
}
static void hx8347_send_data(void * data, uint16_t length)
{
uint8_t c;
c=0x72;
lcd_cs_port(0);
disp_spi_send_data(&c, 1); //Data mode
disp_spi_send_data(data, length);
lcd_cs_port(1);
}
static void hx8347_send_color(void * data, uint16_t length)
{
uint8_t c;
c=0x72;
lcd_cs_port(0);
disp_spi_send_data(&c, 1); //Data mode
disp_spi_send_colors(data, length);
lcd_cs_port(1);
}
三、修改components\lvgl_esp32_drivers\lvgl_tft\Kconfig文件内容
在相关位置增加hx8347相关信息，位置可参考其他显示IC配置，方便idf.py menuconfig进行配置：
config LV_TFT_DISPLAY_USER_CONTROLLER_HX8347
bool "HX8347"
select LV_TFT_DISPLAY_CONTROLLER_HX8347
select LV_TFT_DISPLAY_PROTOCOL_SPI
config LV_TFT_DISPLAY_CONTROLLER_HX8347
bool
help
HX8347 display controller.
配好后，idf.py menuconfig 中就会有hx8347的选项：
四、其他的文件修改：
disp_spi.h
//增加了DISP_SPI_SEND_POLLING
static inline void disp_spi_send_colors(uint8_t *data, size_t length) {
disp_spi_transaction(data, length,
DISP_SPI_SEND_QUEUED | DISP_SPI_SIGNAL_FLUSH|DISP_SPI_SEND_POLLING,
NULL, 0, 0);
}disp_spi.c
void disp_spi_transaction(const uint8_t *data, size_t length,
disp_spi_send_flag_t flags, uint8_t *out,
uint64_t addr, uint8_t dummy_bits)
{
.......
if (length <= 4 && data != NULL) {
t.base.flags = SPI_TRANS_USE_TXDATA;
memcpy(t.base.tx_data, data, length);
} else {
t.base.flags =SPI_DEVICE_CLK_AS_CS|SPI_DEVICE_NO_DUMMY;//增加了这句
t.base.tx_buffer = data;
}
.......disp_driver.h增加了：
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_HX8347
#include "hx8347.h"disp_dirver.c增加了：
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_HX8347
hx8347_init();
#elif defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_HX8347
hx8347_flush(drv, area, color_map);应该还有其他的地方修改，总之是使lv_port_esp32支持HX8347。
五、最后
LVGL
六、总结
1、ESP32S3运行LVGL，需要LVGL+lv_port_esp32。
2、运行LVGL通常需要4线spi，很不巧，笔者手头的HX8347只支持3线SPI。所以什么都要自己写。3线SPI性能比4线差不少。CS还需要手动控制。
3、0x16寄存器要设置下面这样，否则左右可能颠倒
0x16,1,0x38, // MY=0, MX=1, MV=1, BGR=1
如果用竖屏，要加上：
0x16,1,0x80, // MY=1, MX=0, MV=0,竖屏时去掉注释
4、idf.py menuconfig的一些设置：
flash size
运行的例子：
LVGL configuration
LVGL TFT Display configration
