1. 參考官方使用 Env 創建 RT-Thread 項目工程的教程
2. 選擇 BSP
   獲取 RT-Thread 源代碼后需要根據自己手上的開發板型號找到對應的 BSP，我實驗所使用的是野火的STM32F29 V1開發板，所以可以選擇stm32f29-fire-challenger的BSP，在此BSP的基礎上移植touchgfx，首先找到如下目錄：…\rt-thread\bsp\stm32\stm32f429-fire-challenger。
3. 搭建項目框架
   打開 Env 工具進入 stm32f429-fire-challenger 目錄，運行scons --dist 命令。使用此命令會在 stm32f429-fire-challenger目錄下生成 dist 目錄，這便是開發項目的目錄結構，RT-Thread 源碼位于項目文件夾內，僅包含stm32f429-fire-challenger 的 BSP，可以隨意拷貝此 BSP 到任何目錄下使用。
   進入dist目錄下，把工程里面的 stm32f429-fire-challenger壓縮包拷貝到你的項目目錄下待使用。
4. 制作BSP
   也可以自己重新制作對應自己板子的BSP，可以參考官方教程

打開…\board\CubeMX_Config\CubeMX_Config.ioc，由于bsp已經配置了很多外設，所以只需要修改部分配置就可以了

1. 打開CRC
2. 重新配置LTCD
3. 
   
4. 
   
5. 
   
6. 打開freertos
7. 
   
8. 打開Touchgfx
9. 
   
10. 配置Touchgfx
11. 
    
12. 配置SPI_FLASH管腳
13. 
    
14. 生成工程
15. 通過TouchGFX 4.13.0 Designer打開ApplicationTemplate.touchgfx.part
16. 
    
17. 配置TouchGFX UI，創建三個頁面
18. 
    
19. 
    
20. 
    
21. 
    
22. 
    

拷貝OSWrappers.cpp，重命名為OSWrappers_RTT.cpp文件

更改代碼

1 17#include <touchgfx/hal/OSWrappers.hpp> 18#include <stm32f4xx_hal.h> 19#include <touchgfx/hal/GPIO.hpp> 20#include <touchgfx/hal/HAL.hpp> 21#include <rtthread.h> 22#include <rtdevice.h> 23#include <board.h> 24 25static rt_sem_t frame_buffer_sem; 26static rt_mq_t vsync_q = 0; 27using namespace touchgfx; 28 29// Just a dummy value to insert in the VSYNC queue. 30static uint8_t dummy = 0x5a; 31 32 35void OSWrappers::initialize() 36{ 37 38 frame_buffer_sem = rt_sem_create("gfx_sem", 1, RT_IPC_FLAG_PRIO); 39 // Create a queue of length 1 40 vsync_q = rt_mq_create("gfx_mq", 1, 1, RT_IPC_FLAG_PRIO); 41 42} 43 44 47void OSWrappers::takeframeBufferSemaphore() 48{ 49 rt_sem_take(frame_buffer_sem, RT_WAITING_FOREVER); 50} 51 52 55void OSWrappers::giveframeBufferSemaphore() 56{ 57 rt_sem_release(frame_buffer_sem); 58} 59 60 67void OSWrappers::tryTakeframeBufferSemaphore() 68{ 69 rt_sem_trytake(frame_buffer_sem); 70} 71 72 79void OSWrappers::giveframeBufferSemaphoreFromISR() 80{ 81 // Since this is called from an interrupt, FreeRTOS requires special handling to trigger a 82 // re-scheduling. May be applicable for other OSes as well. 83 rt_sem_release(frame_buffer_sem); 84} 85 86 92void OSWrappers::signalVSync() 93{ 94 if (vsync_q) 95 { 96 rt_mq_send(vsync_q, &dummy, 1); 97 } 98} 99100106void OSWrappers::waitForVSync()107{108 // First make sure the queue is empty, by trying to remove an element with 0 timeout.109 rt_mq_recv(vsync_q, &dummy, 1, 0);110111 // Then, wait for next VSYNC to occur.112 rt_mq_recv(vsync_q, &dummy, 1, RT_WAITING_FOREVER);113}114115128void OSWrappers::taskDelay(uint16_t ms)129{130 rt_thread_mdelay(ms);131}132static rt_base_t IdleTaskHook(void* p)133{134 if ((int)p) //idle task sched out135 {136 touchgfx::HAL::getInstance()->setMCUActive(true);137 }138 else //idle task sched in139 {140 touchgfx::HAL::getInstance()->setMCUActive(false);141 }142 return RT_TRUE;143}144145// FreeRTOS specific handlers146extern "C"147{148 void vApplicationStackOverflowHook(rt_thread_t xTask,149 signed char* pcTaskName)150 {151 while (1);152 }153154 void vApplicationMallocFailedHook(rt_thread_t xTask,155 signed char* pcTaskName)156 {157 while (1);158 }159160 void vApplicationIdleHook(void)161 {162 // Set task tag in order to have the "IdleTaskHook" function called when the idle task is163 // switched in/out. Used solely for measuring MCU load, and can be removed if MCU load164 // readout is not needed.165 //vTaskSetApplicationTaskTag(NULL, IdleTaskHook);166 }167}168

嵌入式物聯網需要學的東西真的非常多，千萬不要學錯了路線和內容，導致工資要不上去！

無償分享大家一個資料包，差不多150多G。里面學習內容、面經、項目都比較新也比較全！某魚上買估計至少要好幾十。

點擊這里找小助理0元領?。狐c擊文中文領取

拷貝main.c的部分外設初始化代碼到sample_touchgfx.c，示例代碼如下：

1#include <rtthread.h> 2#include <rtdevice.h> 3#include <board.h> 4#include "app_touchgfx.h" 5 6CRC_HandleTypeDef hcrc; 7 8DMA2D_HandleTypeDef hdma2d; 9 10LTDC_HandleTypeDef hltdc; 11 12static void MX_CRC_Init(void); 13static void MX_DMA2D_Init(void); 14static void MX_LTDC_Init(void); 15 16#define DISP_Pin GET_PIN(D, 4) 17#define CTDL_BL_Pin GET_PIN(D, 7) 18#define WIFI_Pin GET_PIN(G, 9)//野火開發板使用LCD需要關閉WIFI電源 19 20 23void LTDC_IRQHandler(void) 24{ 25 26 27 28 HAL_LTDC_IRQHandler(&hltdc); 29 30 31 32} 33 34 37void DMA2D_IRQHandler(void) 38{ 39 40 41 42 HAL_DMA2D_IRQHandler(&hdma2d); 43 44 45 46} 47 52static void MX_CRC_Init(void) 53{ 54 55 56 57 58 59 60 61 62 hcrc.Instance = CRC; 63 if (HAL_CRC_Init(&hcrc) != HAL_OK) 64 { 65 Error_Handler(); 66 } 67 68 69 70 71} 72 73 78static void MX_DMA2D_Init(void) 79{ 80 81 82 83 84 85 86 87 88 hdma2d.Instance = DMA2D; 89 hdma2d.Init.Mode = DMA2D_M2M; 90 hdma2d.Init.ColorMode = DMA2D_OUTPUT_ARGB8888; 91 hdma2d.Init.OutputOffset = 0; 92 hdma2d.LayerCfg[1].InputOffset = 0; 93 hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888; 94 hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA; 95 hdma2d.LayerCfg[1].InputAlpha = 0; 96 if (HAL_DMA2D_Init(&hdma2d) != HAL_OK) 97 { 98 Error_Handler(); 99 }100 if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)101 {102 Error_Handler();103 }104 105106 107108}109110115static void MX_LTDC_Init(void)116{117118 119120 121122 LTDC_LayerCfgTypeDef pLayerCfg = {0};123124 125126 127 hltdc.Instance = LTDC;128 hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;129 hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;130 hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;131 hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;132 hltdc.Init.HorizontalSync = 0;133 hltdc.Init.VerticalSync = 0;134 hltdc.Init.AccumulatedHBP = 46;135 hltdc.Init.AccumulatedVBP = 23;136 hltdc.Init.AccumulatedActiveW = 846;137 hltdc.Init.AccumulatedActiveH = 503;138 hltdc.Init.TotalWidth = 866;139 hltdc.Init.TotalHeigh = 525;140 hltdc.Init.Backcolor.Blue = 0;141 hltdc.Init.Backcolor.Green = 0;142 hltdc.Init.Backcolor.Red = 0;143 if (HAL_LTDC_Init(&hltdc) != HAL_OK)144 {145 Error_Handler();146 }147 pLayerCfg.WindowX0 = 0;148 pLayerCfg.WindowX1 = 800;149 pLayerCfg.WindowY0 = 0;150 pLayerCfg.WindowY1 = 480;151 pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;152 pLayerCfg.Alpha = 255;153 pLayerCfg.Alpha0 = 0;154 pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_CA;155 pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_CA;156 pLayerCfg.FBStartAdress = 0xd0000000;157 pLayerCfg.ImageWidth = 800;158 pLayerCfg.ImageHeight = 480;159 pLayerCfg.Backcolor.Blue = 255;160 pLayerCfg.Backcolor.Green = 255;161 pLayerCfg.Backcolor.Red = 255;162 if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)163 {164 Error_Handler();165 }166 167 rt_pin_mode(DISP_Pin, PIN_MODE_OUTPUT);168 rt_pin_mode(CTDL_BL_Pin, PIN_MODE_OUTPUT);169 rt_pin_mode(WIFI_Pin, PIN_MODE_OUTPUT);170 rt_pin_write(DISP_Pin, 1);171 rt_pin_write(CTDL_BL_Pin, 1);172 rt_pin_write(WIFI_Pin, 0);173 174175}176void touchgfx_thread_entry(void *parameter)177{178 MX_CRC_Init();179 MX_DMA2D_Init();180 MX_LTDC_Init();181 MX_TouchGFX_Init();182 MX_TouchGFX_Process();183 for(;;)184 {185 rt_thread_mdelay(100);186 }187}188int TouchGFXTask(void)189{190 rt_thread_t tid = NULL;191 tid = rt_thread_create("TouchGFX",192 touchgfx_thread_entry, RT_NULL,193 4096, 15, 20);194195 if (tid != RT_NULL)196 rt_thread_startup(tid);197 else198 return -1;199200 return RT_EOK;201}202INIT_APP_EXPORT(TouchGFXTask);6.編輯 board/KConfig7.編輯 board/SConscript8.新建 board/CubeMX_Config/SConscript

1import os 2import rtconfig 3from building import * 4 5cwd = GetCurrentDir() 6 7# add general drivers 8src = Split(''' 9Src/sample_touchgfx.c10Src/OSWrappers_RTT.cpp11Src/STM32DMA.cpp12Src/STM32TouchController.cpp13Src/TouchGFXGPIO.cpp14Src/TouchGFXConfiguration.cpp15Src/TouchGFXGeneratedHAL.cpp16Src/TouchGFXHAL.cpp17Src/app_touchgfx.c18''')1920path = [cwd + '/Src']21path += [cwd + '/Middlewares/ST/touchgfx/framework/include']222324if rtconfig.CROSS_TOOL == 'gcc':25 src += [cwd + '/Middlewares/ST/touchgfx/lib/core/cortex_m4f/gcc/libtouchgfx.a']26elif rtconfig.CROSS_TOOL == 'keil':27 src += [cwd + '/Middlewares/ST/touchgfx/lib/core/cortex_m4f/Keil/touchgfx_core.lib']28elif rtconfig.CROSS_TOOL == 'iar':29 src += [cwd + '/Middlewares/ST/touchgfx/lib/core/cortex_m4f/IAR8.x/touchgfx_core.a']3031group = DefineGroup('TouchGFX_app', src, depend = [''], CPPPATH = path)3233# add TouchGFX generated34genSrc = Glob('./Src/generated/fonts/src*.cpp')36genSrc += Glob('./Src/generated/images/src*.cpp')4849group = group + DefineGroup('TouchGFX_resource', resSrc, depend = [''])5051# add TouchGFX gui52guiSrc = Glob('./Src/gui/src1011#ifndef _FAL_CFG_H_12#define _FAL_CFG_H_1314#include <rtconfig.h>15#include <board.h>1617#define FLASH_SIZE_GRANULARITY_16K (4 * 16 * 1024)18#define FLASH_SIZE_GRANULARITY_64K (64 * 1024)19#define FLASH_SIZE_GRANULARITY_128K (7 * 128 * 1024)2021#define STM32_FLASH_START_ADRESS_16K STM32_FLASH_START_ADRESS22#define STM32_FLASH_START_ADRESS_64K (STM32_FLASH_START_ADRESS_16K + FLASH_SIZE_GRANULARITY_16K)23#define STM32_FLASH_START_ADRESS_128K (STM32_FLASH_START_ADRESS_64K + FLASH_SIZE_GRANULARITY_64K)2425262728extern const struct fal_flash_dev stm32_onchip_flash_16k;29extern const struct fal_flash_dev stm32_onchip_flash_64k;30extern const struct fal_flash_dev stm32_onchip_flash_128k;31extern struct fal_flash_dev nor_flash0;323334#define FAL_FLASH_DEV_TABLE \35{ \36 &stm32_onchip_flash_16k, \37 &stm32_onchip_flash_64k, \38 &stm32_onchip_flash_128k, \39 &nor_flash0, \40}4142#ifdef FAL_PART_HAS_TABLE_CFG4344#define FAL_PART_TABLE \45{ \46 {FAL_PART_MAGIC_WROD, "bootloader", "onchip_flash_16k", 0 , FLASH_SIZE_GRANULARITY_16K , 0}, \47 {FAL_PART_MAGIC_WROD, "ef", "onchip_flash_64k", 0 , FLASH_SIZE_GRANULARITY_64K , 0}, \48 {FAL_PART_MAGIC_WROD, "app", "onchip_flash_128k", 0 , FLASH_SIZE_GRANULARITY_128K, 0}, \49 {FAL_PART_MAGIC_WROD, "tgfx", "W25Q128", 0 , 4 * 1024 * 1024, 0}, \50 {FAL_PART_MAGIC_WROD, "download", "W25Q128", 4 * 1024 * 1024 , 1024 * 1024, 0}, \51 {FAL_PART_MAGIC_WROD, "factory", "W25Q128", (4 * 1024 + 1024) * 1024 , 1024 * 1024, 0}, \52 {FAL_PART_MAGIC_WROD, "filesystem", "W25Q128", (4 * 1024 + 1024 + 1024) * 1024 , 2 * 1024 * 1024, 0}, \53}54#endif 5556#endif

初始化fal

1int fs_init(void)2{3 4 fal_init();5 return 0;6}7INIT_COMPONENT_EXPORT(fs_init);13.配置SPI FLASH

1. 制作STM32F429的SPI FLASH下載算法（看附文）
2. 修改工程模版template.uvprojx
3. 
   
4. 編輯鏈接文件
5. 
   
6. .將位圖數據從外部flash復制到緩存
7. 
   
8. 
   
9. 
   
10. 
    此時重新生成 MDK工程，便可以下載到板子上運行。
    參考資料：https://support.touchgfx.com/docs/development/ui-development/scenarios/using-non-memory-mapped-flash

配置模擬I2C

在applications文件夾下新建gtxx_ccollect.c文件，添加一下內容

1 10 11#include <rtthread.h> 12#include "gt9147.h" 13#define DBG_TAG "gt9147" 14#define DBG_LVL DBG_LOG 15#include <rtdbg.h> 16#define THREAD_PRIORITY 5 17#define THREAD_STACK_SIZE 1024 18#define THREAD_TIMESLICE 5 19 20#define GT9147_RST_PIN 59 21#define GT9147_IRQ_PIN 61 22 23static rt_thread_t gt9147_thread = RT_NULL; 24static rt_sem_t gt9147_sem = RT_NULL; 25static rt_device_t dev = RT_NULL; 26static struct rt_touch_data *read_data; 27static struct rt_touch_info info; 28 29struct rt_touch_data *read_coordinate(void) 30{ 31 return &read_data[0]; 32} 33static void gt9147_entry(void *parameter) 34{ 35 rt_device_control(dev, RT_TOUCH_CTRL_GET_INFO, &info); 36 37 read_data = (struct rt_touch_data *)rt_malloc(sizeof(struct rt_touch_data) * info.point_num); 38 39 while (1) 40 { 41 rt_sem_take(gt9147_sem, RT_WAITING_FOREVER); 42 43 if (rt_device_read(dev, 0, read_data, info.point_num) == info.point_num) 44 { 45 for (rt_uint8_t i = 0; i < info.point_num; i++) 46 { 47 if (read_data[i].event == RT_TOUCH_EVENT_DOWN || read_data[i].event == RT_TOUCH_EVENT_MOVE) 48 { 49 LOG_D("%d %d %d %d %d\n", read_data[i].track_id, 50 read_data[i].x_coordinate, 51 read_data[i].y_coordinate, 52 read_data[i].timestamp, 53 read_data[i].width); 54 } 55 56 } 57 } 58 rt_device_control(dev, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL); 59 } 60} 61 62static rt_err_t rx_callback(rt_device_t dev, rt_size_t size) 63{ 64 rt_sem_release(gt9147_sem); 65 rt_device_control(dev, RT_TOUCH_CTRL_DISABLE_INT, RT_NULL); 66 return 0; 67} 68 69static int rt_hw_gt9147_port(void) 70{ 71 struct rt_touch_config config; 72 rt_uint8_t rst; 73 rst = GT9147_RST_PIN; 74 config.dev_name = "i2c1"; 75 config.irq_pin.pin = GT9147_IRQ_PIN; 76 config.irq_pin.mode = PIN_MODE_INPUT_PULLDOWN; 77 config.user_data = &rst; 78 rt_hw_gt9147_init("gt", &config); 79 return 0; 80} 81 82int gt9147_init(void) 83{ 84 void *id; 85 rt_hw_gt9147_port(); 86 dev = rt_device_find("gt"); 87 if (dev == RT_NULL) 88 { 89 rt_kprintf("can't find device gt\n"); 90 return -1; 91 } 92 93 if (rt_device_open(dev, RT_DEVICE_FLAG_INT_RX) != RT_EOK) 94 { 95 rt_kprintf("open device failed!"); 96 return -1; 97 } 98 99 id = rt_malloc(sizeof(rt_uint8_t) * 8);100 rt_device_control(dev, RT_TOUCH_CTRL_GET_ID, id);101 rt_uint8_t * read_id = (rt_uint8_t *)id;102 rt_kprintf("id = %c %c %c %c \n", read_id[0], read_id[1], read_id[2], read_id[3]);103104 rt_device_control(dev, RT_TOUCH_CTRL_GET_INFO, id);105 rt_kprintf("range_x = %d \n", (*(struct rt_touch_info*)id).range_x);106 rt_kprintf("range_y = %d \n", (*(struct rt_touch_info*)id).range_y);107 rt_kprintf("point_num = %d \n", (*(struct rt_touch_info*)id).point_num);108 rt_free(id);109 rt_device_set_rx_indicate(dev, rx_callback);110 gt9147_sem = rt_sem_create("dsem", 0, RT_IPC_FLAG_FIFO);111112 if (gt9147_sem == RT_NULL)113 {114 rt_kprintf("create dynamic semaphore failed.\n");115 return -1;116 }117118 gt9147_thread = rt_thread_create("gt9147",119 gt9147_entry,120 RT_NULL,121 THREAD_STACK_SIZE,122 THREAD_PRIORITY,123 THREAD_TIMESLICE);124125 if (gt9147_thread != RT_NULL)126 rt_thread_startup(gt9147_thread);127128 return 0;129}130INIT_APP_EXPORT(gt9147_init);

修改STM32TouchController.cpp

117181920#include <STM32TouchController.hpp>21#include "gt9147.h"22extern "C"23{24 struct rt_touch_data *read_coordinate(void);25}26void STM32TouchController::init()27{28 32}3334bool STM32TouchController::sampleTouch(int32_t& x, int32_t& y)35{36 46 struct rt_touch_data *read_data;47 read_data = read_coordinate();4849 if (read_data->event == RT_TOUCH_EVENT_DOWN || read_data->event == RT_TOUCH_EVENT_MOVE)50 {51 x = read_data->x_coordinate;52 y = read_data->y_coordinate;53 return true;54 }55 else56 {57 return false;58 }5960}6162636415.讓時鐘動起來

打開rtc實時時鐘

添加以下代碼

配置此緩存可以讓screen切換具有滑動效果

轉載自：AloT開源項目分享

文章來源于【DIY數字儀表】STM32F429移植TouchGFX到RT-Thread系統（1）

原文鏈接：https://mp.weixin.qq.com/s/3a46UC7qv_8WWLJ-abd5DQ