逐飞LPC55S69 IOT开发板之emwin移植及测试

胤幻1988 · 发表于 2020-12-18 08:31:43

今天，我们来移植下emwin,emwin还是比较好用的，它既有GUI生成工具，也有PC上位机的仿真软件。还是比较好评的，虽然不开源，只能用库，单对于
我们普通用户来说根本无区别。
下面讲讲怎样在MCUXpresso 上添加emwin。首先要确保emwin的文件添加到工程中。如果没有的话，打开SDK管理器，选择emwin添加。
添加后：

有用的就是emwin开头的3个文件夹，记得老版本的时候，所以的配置都在config文件夹里面的gui_config.h 和lcd_config.h及gui_x.c等一堆文件完成，但是新版本的怎么也看不到，后来才知道它把这些配置的具体函数，集中到template下的emwin_support.c和emwin_support.h。我们匹配好这两个文件加上gui_config.h 就可以了(lcd_config.h里面啥也没有，是个空文件)。
我们对emwin_support.h，进行修改，修改后代码：

/*
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _EMWIN_SUPPORT_H_
#define _EMWIN_SUPPORT_H_
//
// Color conversion TODO - choose appropriate color conversion here - see emWin documentation
//
//#define COLOR_CONVERSION GUICC_888
#define COLOR_CONVERSION GUICC_M565
//
// Display driver TODO - choose appropriate LCD driver here - see emWin documentation
//
#define DISPLAY_DRIVER GUIDRV_FLEXCOLOR
// TODO - specify the LCD dimensions
#define BOARD_LCD_READABLE 0 //不允许读LCD
#define LCD_WIDTH 320
#define LCD_HEIGHT 240
// TODO - specify the memory assigned to emWin
#define GUI_NUMBYTES 0x8000 /*! Amount of memory assigned to the emWin library */
// TODO - specify the memory location for the frame buffers
extern int BOARD_Touch_Poll(void);
#endif

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其中要注意的:
1、颜色编码格式(默认的888是不符合这个屏的，我们改成565)要对应；
2、LCD的长宽要对应；
3、关闭了LCD的读功能，我们LCD硬件上不支持读。
3、指定的缓存位置(这里默认是MCU内部存储，很小，可以指向外部SRAM或者FLASH)。
////////////////////////////////////////////////////////////////////////////////////////////////////
下面对emwin_support.c就行修改，里面有具体的LCD底层实现函数的定义，修改后代码为：

/*
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <emwin_support.h>
#include "GUI.h"
#include "WM.h"
#include "GUIDRV_FlexColor.h" // TODO - choose appropriate LCD driver here - see emWin documentation
#include "fsl_debug_console.h"
#include "fsl_gpio.h"
#include "ili9341_lcd.h" //SPI_LCD 驱动头文件
#include "ft6366_i2ctouch.h" //IIC_touch 头文件
#ifndef GUI_MEMORY_ADDR
static uint32_t s_gui_memory[(GUI_NUMBYTES + 3) / 4]; /* needs to be word aligned */
#define GUI_MEMORY_ADDR ((uint32_t)s_gui_memory)
#endif
/*******************************************************************************
* Implementation of communication with the LCD controller
******************************************************************************/
static void APP_pfWrite8_A0(U8 Data)
{
ili9341_lcd_writ_cmd(Data);
}
static void APP_pfWrite8_A1(U8 Data)
{
ili9341_lcd_writ_data(Data);
}
static void APP_pfWriteM8_A1(U8 *pData, int NumItems)
{
ili9341_lcd_writ_databuf8(pData, NumItems);
}
static U8 APP_pfRead8_A1(void)
{
uint8_t Data;
#if defined(BOARD_LCD_READABLE) && (BOARD_LCD_READABLE == 0)
PRINTF("Warning: LCD does not support read operation, the image may get distorted.\r\n");
assert(0);
#endif
//GPIO_PortSet(BOARD_LCD_DC_GPIO, BOARD_LCD_DC_GPIO_PORT, 1u << BOARD_LCD_DC_GPIO_PIN);
//BOARD_LCD_SPI.Receive(&Data, 1);
//SPI_WaitEvent();
Data=ili9341_lcd_read_data(0X00);
return Data;
}
static void APP_pfReadM8_A1(U8 *pData, int NumItems)
{
#if defined(BOARD_LCD_READABLE) && (BOARD_LCD_READABLE == 0)
PRINTF("Warning: LCD does not support read operation, the image may get distorted.\r\n");
assert(0);
#endif
//GPIO_PortSet(BOARD_LCD_DC_GPIO, BOARD_LCD_DC_GPIO_PORT, 1u << BOARD_LCD_DC_GPIO_PIN);
//BOARD_LCD_SPI.Receive(pData, NumItems);
//SPI_WaitEvent();
ili9341_lcd_read_databuf8(pData,NumItems);
}
// TODO - implement event handling
static void BOARD_LCD_InterfaceInit(void)
{
// TODO - LCD interface initialization
ili9341_lcd_init();
}
void BOARD_LCD_InterfaceDeinit(void)
{
// TODO - LCD interface deinitialization
}
/*******************************************************************************
* Implementation of communication with the touch controller
******************************************************************************/
// TODO - implement event handling
static void BOARD_Touch_InterfaceInit(void)
{
// TODO - touch interface initialization
ft6366_i2ctouch_Init();
}
void BOARD_Touch_InterfaceDeinit(void)
{
// TODO - touch interface deinitialization
}
int BOARD_Touch_Poll(void)
{
// TODO - touch handling
GUI_PID_STATE pid_state;
ft6336_i2ctouch_scan(FLEXCOMM5_PERIPHERAL);
if(ftf6336_tpr_structure.touchsta.all & 0x01)//判断仅1点触摸支持5点触摸
{
//pid_state.x = LCD_WIDTH - ftf6336_tpr_structure.y[0];
//pid_state.y = ftf6336_tpr_structure.x[0];
pid_state.x = ftf6336_tpr_structure.y[0];
pid_state.y = LCD_HEIGHT-ftf6336_tpr_structure.x[0];
//按下或者被触摸
pid_state.Pressed = ((ftf6336_tpr_structure.touchsta.bit.touch==1)||(ftf6336_tpr_structure.touchsta.bit.hold==1));
pid_state.Layer = 0;
GUI_TOUCH_StoreStateEx(&pid_state);
PRINTF("I touch the screen posion x: %d ,y:%d ,Press is %d.\r\n",pid_state.x,pid_state.y,pid_state.Pressed);
return 1;
}
return 0;
}
/*******************************************************************************
* Application implemented functions required by emWin library
******************************************************************************/
void LCD_X_Config(void)
{
GUI_DEVICE *pDevice;
GUI_PORT_API PortAPI;
CONFIG_FLEXCOLOR Config = {0, 0, GUI_SWAP_XY, 0, 1};
// Initialize the gui device with specified display driver and color conversion
pDevice =GUI_DEVICE_CreateAndLink(DISPLAY_DRIVER, COLOR_CONVERSION, 0, 0);
GUIDRV_FlexColor_Config(pDevice, &Config);
LCD_SetSizeEx(0, LCD_WIDTH, LCD_HEIGHT);
LCD_SetVSizeEx(0, LCD_WIDTH, LCD_HEIGHT);
PortAPI.pfWrite8_A0 = APP_pfWrite8_A0;
PortAPI.pfWrite8_A1 = APP_pfWrite8_A1;
PortAPI.pfWriteM8_A1 = APP_pfWriteM8_A1;
PortAPI.pfRead8_A1 = APP_pfRead8_A1;
PortAPI.pfReadM8_A1 = APP_pfReadM8_A1;
GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66709, GUIDRV_FLEXCOLOR_M16C0B8);
// Initialize touch interface
BOARD_Touch_InterfaceInit();
}
int LCD_X_DisplayDriver(unsigned LayerIndex, unsigned Cmd, void *pData)
{
int result = 0;
switch (Cmd)
{
case LCD_X_INITCONTROLLER:
BOARD_LCD_InterfaceInit();
GUI_X_Delay(50); /* settle down delay after reset */
FT9341_Init(APP_pfWrite8_A1, APP_pfWrite8_A0);
break;
default:
result = -1;
break;
}
return result;
}
void GUI_X_Config(void)
{
/* Assign work memory area to emWin */
GUI_ALLOC_AssignMemory((void *)GUI_MEMORY_ADDR, GUI_NUMBYTES);
/* Select default font */
GUI_SetDefaultFont(GUI_FONT_6X8);
}
void GUI_X_Init(void)
{
}
/* Dummy RTOS stub required by emWin */
void GUI_X_InitOS(void)
{
}
/* Dummy RTOS stub required by emWin */
void GUI_X_Lock(void)
{
}
/* Dummy RTOS stub required by emWin */
void GUI_X_Unlock(void)
{
}
/* Dummy RTOS stub required by emWin */
U32 GUI_X_GetTaskId(void)
{
return 0;
}
void GUI_X_ExecIdle(void)
{
}
GUI_TIMER_TIME GUI_X_GetTime(void)
{
return 0;
}
void GUI_X_Delay(int Period)
{
volatile int per;
volatile int i;
for (per = Period; per > 0; per--)
{
for (i = 15000; i > 0; i--)
;
}
}

复制代码

把emwin里面对应的几个操作底层的函数与我们之前的LCD和触摸连接起来。其中要这样的是：
1、本LCD硬件无读的功能，具体实现的函数可以不写
2、触摸芯片读取的x,y位置与GUI里面元件的位置是否对应，不对应需要稍微转换一下，如果自己用GUI TOOL 生成，可在设置是指定整个画面的起始结束坐标位置。
gui_config.h 里面内容默认，未做修改。
好了，到此，我们就完成了emwin的移植。我们在mian.c里面添加一下代码测试一下：

/**
* @file seekfreePrj_demo.c
* @brief Application entry point.
*/
#include <stdio.h>
#include "board.h"
#include "peripherals.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "LPC55S69_cm33_core0.h"
#include "fsl_debug_console.h"
/* TODO: insert other include files here. */
#include "sd.h"
#include "ff.h"
#include "diskio.h"
#include "fsl_sd_disk.h"
#include "semphr.h"
#include "task.h"
#include "delay.h"
#include "led.h"
#include "key.h"
#include "ft6366_i2ctouch.h"
#include "ili9341_lcd.h"
#include <emwin_support.h>
#include "GUI.h"
#include "BUTTON.h"
#include "CHECKBOX.h"
#include "SLIDER.h"
#include "DROPDOWN.h"
#include "RADIO.h"
#include "MULTIPAGE.h"
#include <stdbool.h>
/* TODO: insert other definitions and declarations here. */
#ifndef GUI_NORMAL_FONT
#define GUI_NORMAL_FONT (&GUI_Font16_ASCII)
#endif
#ifndef GUI_LARGE_FONT
#define GUI_LARGE_FONT (&GUI_Font16B_ASCII)
#endif
#ifndef GUI_SCALE_FACTOR
#define GUI_SCALE_FACTOR 1
#endif
#ifndef GUI_SCALE_FACTOR_X
#define GUI_SCALE_FACTOR_X GUI_SCALE_FACTOR
#endif
#ifndef GUI_SCALE_FACTOR_Y
#define GUI_SCALE_FACTOR_Y GUI_SCALE_FACTOR
#endif
#define GUI_SCALE(a) ((int)((a) * (GUI_SCALE_FACTOR)))
#define GUI_SCALE_X(x) ((int)((x) * (GUI_SCALE_FACTOR_X)))
#define GUI_SCALE_Y(y) ((int)((y) * (GUI_SCALE_FACTOR_Y)))
#define GUI_SCALE_COORDS(x, y) GUI_SCALE_X(x), GUI_SCALE_Y(y)
#define GUI_SCALE_RECT(x0, y0, xs, ys) GUI_SCALE_X(x0), GUI_SCALE_Y(y0), GUI_SCALE_X(xs), GUI_SCALE_Y(ys)
#define GUI_ID_DRAWAREA (GUI_ID_USER + 0)
#define GUI_ID_PAGEWIN1 (GUI_ID_USER + 1)
#define GUI_ID_PAGEWIN2 (GUI_ID_USER + 2)
static DROPDOWN_Handle hDropdown0;
static RADIO_Handle hRadio0;
static CHECKBOX_Handle hCheck0;
static WM_HWIN hDrawArea;
static SLIDER_Handle hSlider0;
static SLIDER_Handle hSlider1;
static SPINBOX_Handle hSpinbox0;
static PROGBAR_Handle hProgbar0;
static const GUI_COLOR color_list[] = {GUI_BLACK, GUI_YELLOW, GUI_ORANGE, GUI_RED,
GUI_MAGENTA, GUI_BLUE, GUI_CYAN, GUI_GREEN};
static const GUI_POINT triangle_points[] = {
{GUI_SCALE(0), GUI_SCALE(0)}, {GUI_SCALE(-50), GUI_SCALE(100)}, {GUI_SCALE(50), GUI_SCALE(100)}};
static void cbDrawArea(WM_MESSAGE *pMsg)
{
switch (pMsg->MsgId)
{
case WM_PAINT:
GUI_SetColor(color_list[DROPDOWN_GetSel(hDropdown0)]);
switch (RADIO_GetValue(hRadio0))
{
case 0:
if (CHECKBOX_GetState(hCheck0))
{
GUI_FillRect(GUI_SCALE_X(70) - GUI_SCALE(50), GUI_SCALE_Y(70) - GUI_SCALE(50),
GUI_SCALE_X(70) + GUI_SCALE(50), GUI_SCALE_Y(70) + GUI_SCALE(50));
}
else
{
GUI_DrawRect(GUI_SCALE_X(70) - GUI_SCALE(50), GUI_SCALE_Y(70) - GUI_SCALE(50),
GUI_SCALE_X(70) + GUI_SCALE(50), GUI_SCALE_Y(70) + GUI_SCALE(50));
}
break;
case 1:
if (CHECKBOX_GetState(hCheck0))
{
GUI_FillPolygon(triangle_points, 3, GUI_SCALE_COORDS(70, 20));
}
else
{
GUI_DrawPolygon(triangle_points, 3, GUI_SCALE_COORDS(70, 20));
}
break;
case 2:
if (CHECKBOX_GetState(hCheck0))
{
GUI_FillEllipse(GUI_SCALE_COORDS(70, 70), GUI_SCALE(50), GUI_SCALE(50));
}
else
{
GUI_DrawEllipse(GUI_SCALE_COORDS(70, 70), GUI_SCALE(50), GUI_SCALE(50));
}
break;
}
break;
default:
WM_DefaultProc(pMsg);
break;
}
}
static void cbPageWin1(WM_MESSAGE *pMsg)
{
int NCode;
int Id;
switch (pMsg->MsgId)
{
case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);
NCode = pMsg->Data.v;
switch (Id)
{
case GUI_ID_RADIO0:
switch (NCode)
{
case WM_NOTIFICATION_VALUE_CHANGED:
WM_InvalidateWindow(hDrawArea);
break;
}
break;
case GUI_ID_DROPDOWN0:
switch (NCode)
{
case WM_NOTIFICATION_SEL_CHANGED:
WM_InvalidateWindow(hDrawArea);
break;
}
break;
case GUI_ID_CHECK0:
switch (NCode)
{
case WM_NOTIFICATION_VALUE_CHANGED:
WM_InvalidateWindow(hDrawArea);
break;
}
break;
}
break;
default:
WM_DefaultProc(pMsg);
break;
}
}
static void cbPageWin2(WM_MESSAGE *pMsg)
{
int NCode;
int Id;
switch (pMsg->MsgId)
{
case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);
NCode = pMsg->Data.v;
switch (Id)
{
case GUI_ID_SLIDER0:
switch (NCode)
{
case WM_NOTIFICATION_VALUE_CHANGED:
PROGBAR_SetValue(hProgbar0, SLIDER_GetValue(hSlider0));
break;
}
break;
case GUI_ID_SLIDER1:
switch (NCode)
{
case WM_NOTIFICATION_VALUE_CHANGED:
SPINBOX_SetValue(hSpinbox0, SLIDER_GetValue(hSlider1));
break;
}
break;
case GUI_ID_SPINBOX0:
switch (NCode)
{
case WM_NOTIFICATION_VALUE_CHANGED:
SLIDER_SetValue(hSlider1, SPINBOX_GetValue(hSpinbox0));
break;
}
break;
}
break;
default:
WM_DefaultProc(pMsg);
break;
}
}
/*
* @brief Application entry point.
*/
int main(void) {
/* Init board hardware. */
BOARD_InitBootPins();
BOARD_InitBootClocks();
BOARD_InitBootPeripherals();
#ifndef BOARD_INIT_DEBUG_CONSOLE_PERIPHERAL
/* Init FSL debug console. */
BOARD_InitDebugConsole();
#endif
LED_Init();
KEY_Init();
//MySD_Init();
PRINTF("the systemclock is: %d Mhz\n",SystemCoreClock/1000000);
PRINTF("the for1mclock is: %d Mhz\n",CLOCK_GetFro1MFreq()/1000000);
PRINTF("FATFS SDCard example.\r\n");
fatfs_sdcard_init();
fatfs_sdcard_mkdir("/dir");
fatfs_sdcard_writetxt("/dir/test.txt",(char*)("Helloworld!\r\n"));
fatfs_sdcard_readtxt("/dir/test.txt",strlen("Helloworld!\r\n"));
PRINTF("THE SEND STR3 LEN IS %d.\r\n",strlen("Helloworld!\r\n"));
fatfs_sdcard_readMaxtxt("/dir/test.txt");
//fatfs_sdcard_readdir((char*)("2:/dir"));
fatfs_sdcard_readdir((char*)("2:/"));
ft6366_i2ctouch_Init();
ili9341_lcd_init();

复制代码

编译生成，下载，查看LCD输出：

触摸，拖到，均可改变对应值，好了emwin的移植就到这里了。
谢谢大家观看！

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