STM32 LCD英文字符显示学习笔记
作者：互联网
开发板：野火指南者（STM32F103VE）
STM32库版本：STM32F10x_StdPeriph_Lib_V3.5.0
IDE:KEIL5（代码编写很不方便，只在编译的时候用到）
代码编写工具：Source Insight 4.0（跟读代码、编写代码的最佳工具）
硬件原理图：
1. 新建user_fsmc_lcd.h、user_fsmc_lcd.c、main.c 3个文件，并从STM32官方库的例子中将stm32f10x_it.c、stm32f10x_it.h、stm32f10x_conf.h拷贝到自己的工程目录下。
2. 在user_fsmc_lcd.h中添加如下代码
1 #ifndef __USER_FSMC_LCD_H 2 #define __USER_FSMC_LCD_H 3 4 #include "stm32f10x.h" 5 6 #define LCD_CMD ((uint32_t)0x60000000) 7 #define LCD_DATA ((uint32_t)0x60020000) 8 9 #define TEXTCOLOR 0xF800 10 #define BACKGROUND 0x0000 11 12 13 14 void time_delay(uint32_t t); //时间延时函数 15 void user_lcd_display_string(char * pchar); //显示英文字符串函数 16 void user_lcd_fill_color(uint32_t fill_lcd, uint16_t color); //整个屏幕填充的颜色函数 17 void user_lcd_clear(void); //清屏函数，将屏幕配置为黑色 18 void user_lcd_display_char(uint16_t x, uint16_t y, char ch); //单个字符显示函数 19 void user_View_Window(uint16_t lcd_x, uint16_t lcd_y, uint16_t lcd_width, uint16_t lcd_height); //初始化整个屏幕 20 void user_LCD_Init(void); //LCD初始化函数 21 void user_LCD_Scan(void); //LCD扫描函数，这里配置为模式六，即X--240, Y--320，X从左到右，Y从上到下扫描 22 void user_LCD_DATA(uint16_t data); //LCD数据写入函数 23 void user_LCD_CMD(uint16_t cmd); //LCD命令操作函数 24 void user_LCD_REG_Config(void); //LCD对应的IC控制寄存器配置函数，这个配置与LCD上控制芯片相关，如何配置应该是向供应商获取的 25 void user_FSMC_Config(void); //FSMC配置函数 26 void user_LCD_BL(FunctionalState Status); //LCD背光信号控制函数 27 void user_LCD_RST(FunctionalState Status); //LCD复位信号控制函数 28 void user_LCD_GPIO_Config(void); //LCD相关GPIO PIN初始化函数 29 30 31 32 #endifView Code
3. 在user_fsmc_lcd.c中添加如下代码
1 #include "user_fsmc_lcd.h"
2
3
4
5
6 //存放英文字模的数组，宽度8bit像素，高度16bit像素
7 const uint8_t ASCII8x16_Table [ ] = {
8 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
9 0x00,0x00,0x00,0x18,0x18,0x18,0x18,0x18,0x18,0x08,0x00,0x08,0x18,0x00,0x00,0x00,
10 0x00,0x00,0x00,0x34,0x24,0x24,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
11 0x00,0x00,0x00,0x00,0x16,0x24,0x7f,0x24,0x24,0x24,0x7e,0x24,0x24,0x00,0x00,0x00,
12 0x00,0x00,0x00,0x08,0x3e,0x68,0x48,0x68,0x1c,0x16,0x12,0x12,0x7c,0x10,0x10,0x00,
13 0x00,0x00,0x00,0x61,0xd2,0x96,0x74,0x08,0x10,0x16,0x29,0x49,0xc6,0x00,0x00,0x00,
14 0x00,0x00,0x00,0x00,0x3c,0x64,0x64,0x38,0x72,0x4a,0xce,0x46,0x7f,0x00,0x00,0x00,
15 0x00,0x00,0x00,0x18,0x18,0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
16 0x00,0x00,0x00,0x04,0x08,0x18,0x10,0x30,0x30,0x30,0x30,0x10,0x10,0x18,0x0c,0x04,
17 0x00,0x00,0x00,0x20,0x10,0x08,0x08,0x0c,0x04,0x04,0x04,0x0c,0x08,0x18,0x10,0x20,
18 0x00,0x00,0x00,0x08,0x0a,0x34,0x1c,0x6a,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
19 0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x18,0x7f,0x18,0x18,0x18,0x00,0x00,0x00,
20 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x08,0x30,0x00,
21 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3c,0x00,0x00,0x00,0x00,0x00,0x00,
22 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,
23 0x00,0x00,0x00,0x02,0x06,0x04,0x0c,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x00,0x00,
24 0x00,0x00,0x00,0x00,0x3c,0x66,0x42,0x47,0x5b,0x73,0x42,0x66,0x3c,0x00,0x00,0x00,
25 0x00,0x00,0x00,0x00,0x18,0x78,0x48,0x08,0x08,0x08,0x08,0x08,0x7e,0x00,0x00,0x00,
26 0x00,0x00,0x00,0x00,0x3c,0x46,0x06,0x06,0x04,0x08,0x10,0x20,0x7e,0x00,0x00,0x00,
27 0x00,0x00,0x00,0x00,0x7c,0x06,0x06,0x04,0x3c,0x02,0x02,0x06,0x7c,0x00,0x00,0x00,
28 0x00,0x00,0x00,0x00,0x0c,0x1c,0x14,0x24,0x64,0x44,0xff,0x04,0x04,0x00,0x00,0x00,
29 0x00,0x00,0x00,0x00,0x7e,0x60,0x60,0x60,0x7e,0x02,0x02,0x06,0x7c,0x00,0x00,0x00,
30 0x00,0x00,0x00,0x00,0x1e,0x30,0x60,0x48,0x76,0x42,0x42,0x62,0x3c,0x00,0x00,0x00,
31 0x00,0x00,0x00,0x00,0x7e,0x02,0x06,0x04,0x0c,0x08,0x18,0x10,0x30,0x00,0x00,0x00,
32 0x00,0x00,0x00,0x00,0x3c,0x62,0x42,0x36,0x1c,0x66,0x42,0x42,0x3c,0x00,0x00,0x00,
33 0x00,0x00,0x00,0x00,0x3c,0x66,0x42,0x42,0x66,0x1a,0x02,0x04,0x78,0x00,0x00,0x00,
34 0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,
35 0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x18,0x18,0x08,0x30,0x00,
36 0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x18,0x30,0x60,0x10,0x0c,0x06,0x00,0x00,0x00,
37 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7e,0x00,0x7e,0x00,0x00,0x00,0x00,0x00,
38 0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x18,0x04,0x06,0x0c,0x10,0x20,0x00,0x00,0x00,
39 0x00,0x00,0x00,0x30,0x1c,0x06,0x06,0x06,0x18,0x10,0x00,0x10,0x10,0x00,0x00,0x00,
40 0x00,0x00,0x00,0x1c,0x22,0x41,0x41,0xdd,0xb5,0xa5,0xa5,0xaf,0x94,0xc0,0x40,0x3c,
41 0x00,0x00,0x00,0x00,0x18,0x1c,0x34,0x24,0x26,0x62,0x7e,0x43,0xc1,0x00,0x00,0x00,
42 0x00,0x00,0x00,0x00,0x7c,0x46,0x42,0x46,0x7c,0x42,0x42,0x42,0x7c,0x00,0x00,0x00,
43 0x00,0x00,0x00,0x00,0x1e,0x20,0x40,0x40,0x40,0x40,0x40,0x60,0x3e,0x00,0x00,0x00,
44 0x00,0x00,0x00,0x00,0x7c,0x46,0x42,0x43,0x43,0x43,0x42,0x46,0x78,0x00,0x00,0x00,
45 0x00,0x00,0x00,0x00,0x7e,0x60,0x60,0x60,0x7e,0x60,0x60,0x60,0x7e,0x00,0x00,0x00,
46 0x00,0x00,0x00,0x00,0x7e,0x60,0x60,0x60,0x7e,0x60,0x60,0x60,0x60,0x00,0x00,0x00,
47 0x00,0x00,0x00,0x00,0x1e,0x60,0x40,0x40,0xce,0x42,0x42,0x62,0x3e,0x00,0x00,0x00,
48 0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x7e,0x42,0x42,0x42,0x42,0x00,0x00,0x00,
49 0x00,0x00,0x00,0x00,0x7e,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x7e,0x00,0x00,0x00,
50 0x00,0x00,0x00,0x00,0x7c,0x04,0x04,0x04,0x04,0x04,0x04,0x44,0x78,0x00,0x00,0x00,
51 0x00,0x00,0x00,0x00,0x42,0x44,0x48,0x50,0x70,0x58,0x4c,0x44,0x42,0x00,0x00,0x00,
52 0x00,0x00,0x00,0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3e,0x00,0x00,0x00,
53 0x00,0x00,0x00,0x00,0x62,0x66,0x67,0x5f,0x5b,0x5b,0xc1,0xc1,0xc1,0x00,0x00,0x00,
54 0x00,0x00,0x00,0x00,0x62,0x62,0x72,0x52,0x5a,0x4a,0x4e,0x46,0x46,0x00,0x00,0x00,
55 0x00,0x00,0x00,0x00,0x3c,0x62,0x43,0xc3,0xc3,0xc3,0x43,0x62,0x3c,0x00,0x00,0x00,
56 0x00,0x00,0x00,0x00,0x7c,0x46,0x42,0x42,0x46,0x78,0x40,0x40,0x40,0x00,0x00,0x00,
57 0x00,0x00,0x00,0x00,0x3c,0x62,0x43,0xc3,0xc3,0xc3,0x43,0x62,0x3c,0x18,0x0f,0x00,
58 0x00,0x00,0x00,0x00,0x7c,0x66,0x62,0x66,0x7c,0x6c,0x64,0x66,0x62,0x00,0x00,0x00,
59 0x00,0x00,0x00,0x00,0x3e,0x60,0x40,0x60,0x1c,0x06,0x02,0x02,0x7c,0x00,0x00,0x00,
60 0x00,0x00,0x00,0x00,0x7f,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x18,0x00,0x00,0x00,
61 0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x62,0x3c,0x00,0x00,0x00,
62 0x00,0x00,0x00,0x00,0xc1,0x43,0x42,0x62,0x26,0x24,0x34,0x1c,0x18,0x00,0x00,0x00,
63 0x00,0x00,0x00,0x00,0xc1,0xc1,0x41,0x49,0x5b,0x5b,0x76,0x66,0x66,0x00,0x00,0x00,
64 0x00,0x00,0x00,0x00,0x43,0x66,0x34,0x18,0x18,0x1c,0x24,0x66,0xc3,0x00,0x00,0x00,
65 0x00,0x00,0x00,0x00,0xc1,0x42,0x66,0x34,0x1c,0x18,0x18,0x18,0x18,0x00,0x00,0x00,
66 0x00,0x00,0x00,0x00,0x7e,0x02,0x04,0x0c,0x18,0x10,0x20,0x60,0x7e,0x00,0x00,0x00,
67 0x00,0x00,0x00,0x1c,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x1c,
68 0x00,0x00,0x00,0x40,0x20,0x20,0x10,0x10,0x08,0x08,0x0c,0x04,0x06,0x02,0x00,0x00,
69 0x00,0x00,0x00,0x3c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x0c,0x3c,
70 0x00,0x00,0x00,0x00,0x18,0x1c,0x24,0x62,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
71 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,
72 0x00,0x00,0x00,0x20,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
73 0x00,0x00,0x00,0x00,0x00,0x00,0x3c,0x06,0x02,0x3e,0x42,0x46,0x7a,0x00,0x00,0x00,
74 0x00,0x00,0x00,0x40,0x40,0x40,0x5c,0x62,0x42,0x42,0x42,0x42,0x7c,0x00,0x00,0x00,
75 0x00,0x00,0x00,0x00,0x00,0x00,0x1e,0x20,0x60,0x40,0x60,0x20,0x3e,0x00,0x00,0x00,
76 0x00,0x00,0x00,0x02,0x02,0x02,0x3e,0x62,0x42,0x42,0x42,0x66,0x3a,0x00,0x00,0x00,
77 0x00,0x00,0x00,0x00,0x00,0x00,0x3c,0x62,0x42,0x7e,0x40,0x60,0x3e,0x00,0x00,0x00,
78 0x00,0x00,0x00,0x0f,0x18,0x10,0x10,0x7e,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x00,
79 0x00,0x00,0x00,0x00,0x00,0x00,0x3f,0x66,0x42,0x66,0x58,0x40,0x3e,0x43,0x42,0x3c,
80 0x00,0x00,0x00,0x40,0x40,0x40,0x5c,0x62,0x42,0x42,0x42,0x42,0x42,0x00,0x00,0x00,
81 0x00,0x00,0x00,0x18,0x18,0x00,0x78,0x08,0x08,0x08,0x08,0x08,0x7e,0x00,0x00,0x00,
82 0x00,0x00,0x00,0x04,0x0c,0x00,0x7c,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x0c,0x78,
83 0x00,0x00,0x00,0x60,0x60,0x60,0x62,0x6c,0x78,0x70,0x68,0x64,0x62,0x00,0x00,0x00,
84 0x00,0x00,0x00,0x78,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x7e,0x00,0x00,0x00,
85 0x00,0x00,0x00,0x00,0x00,0x00,0x76,0x4b,0x4b,0x4b,0x4b,0x4b,0x4b,0x00,0x00,0x00,
86 0x00,0x00,0x00,0x00,0x00,0x00,0x5c,0x62,0x42,0x42,0x42,0x42,0x42,0x00,0x00,0x00,
87 0x00,0x00,0x00,0x00,0x00,0x00,0x3c,0x62,0x42,0x43,0x42,0x62,0x3c,0x00,0x00,0x00,
88 0x00,0x00,0x00,0x00,0x00,0x00,0x5c,0x62,0x42,0x42,0x42,0x42,0x7c,0x40,0x40,0x40,
89 0x00,0x00,0x00,0x00,0x00,0x00,0x3e,0x62,0x42,0x42,0x42,0x66,0x3a,0x02,0x02,0x02,
90 0x00,0x00,0x00,0x00,0x00,0x00,0x6e,0x72,0x63,0x60,0x60,0x60,0x60,0x00,0x00,0x00,
91 0x00,0x00,0x00,0x00,0x00,0x00,0x3e,0x20,0x20,0x3c,0x06,0x02,0x7c,0x00,0x00,0x00,
92 0x00,0x00,0x00,0x00,0x10,0x10,0xfe,0x10,0x10,0x10,0x10,0x10,0x1e,0x00,0x00,0x00,
93 0x00,0x00,0x00,0x00,0x00,0x00,0x42,0x42,0x42,0x42,0x42,0x66,0x3a,0x00,0x00,0x00,
94 0x00,0x00,0x00,0x00,0x00,0x00,0x43,0x42,0x66,0x24,0x34,0x18,0x18,0x00,0x00,0x00,
95 0x00,0x00,0x00,0x00,0x00,0x00,0xc1,0xc1,0x5b,0x5a,0x5e,0x66,0x66,0x00,0x00,0x00,
96 0x00,0x00,0x00,0x00,0x00,0x00,0x62,0x26,0x1c,0x18,0x1c,0x26,0x62,0x00,0x00,0x00,
97 0x00,0x00,0x00,0x00,0x00,0x00,0x43,0x42,0x66,0x24,0x34,0x1c,0x18,0x18,0x30,0xe0,
98 0x00,0x00,0x00,0x00,0x00,0x00,0x7e,0x06,0x0c,0x18,0x10,0x20,0x7e,0x00,0x00,0x00,
99 0x00,0x00,0x00,0x0e,0x18,0x10,0x10,0x10,0x30,0x70,0x10,0x10,0x10,0x10,0x18,0x0e,
100 0x00,0x00,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,
101 0x00,0x00,0x00,0x30,0x18,0x08,0x08,0x08,0x0c,0x0e,0x08,0x08,0x08,0x08,0x18,0x30,
102 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x71,0x4b,0x06,0x00,0x00,0x00,0x00,0x00,
103 };
104
105
106
107 //LCD相关GPIO PIN初始化函数
108 void user_LCD_GPIO_Config(void)
109 {
110 GPIO_InitTypeDef LCD_GPIO_Config;
111
112 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
113 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);
114
115 LCD_GPIO_Config.GPIO_Mode = GPIO_Mode_AF_PP;
116 LCD_GPIO_Config.GPIO_Speed = GPIO_Speed_50MHz;
117 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_14;
118 GPIO_Init(GPIOD, &LCD_GPIO_Config);
119
120 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_15;
121 GPIO_Init(GPIOD, &LCD_GPIO_Config);
122
123
124 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_0;
125 GPIO_Init(GPIOD, &LCD_GPIO_Config);
126
127 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_1;
128 GPIO_Init(GPIOD, &LCD_GPIO_Config);
129
130
131 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_7;
132 GPIO_Init(GPIOE, &LCD_GPIO_Config);
133
134
135 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_8;
136 GPIO_Init(GPIOE, &LCD_GPIO_Config);
137
138 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_9;
139 GPIO_Init(GPIOE, &LCD_GPIO_Config);
140
141
142 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_10;
143 GPIO_Init(GPIOE, &LCD_GPIO_Config);
144
145
146 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_11;
147 GPIO_Init(GPIOE, &LCD_GPIO_Config);
148
149
150 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_12;
151 GPIO_Init(GPIOE, &LCD_GPIO_Config);
152
153 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_13;
154 GPIO_Init(GPIOE, &LCD_GPIO_Config);
155
156
157 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_14;
158 GPIO_Init(GPIOE, &LCD_GPIO_Config);
159
160
161 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_15;
162 GPIO_Init(GPIOE, &LCD_GPIO_Config);
163
164
165 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_8;
166 GPIO_Init(GPIOD, &LCD_GPIO_Config);
167
168
169 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_9;
170 GPIO_Init(GPIOD, &LCD_GPIO_Config);
171
172
173 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_10;
174 GPIO_Init(GPIOD, &LCD_GPIO_Config);
175
176
177
178 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_7;
179 GPIO_Init(GPIOD, &LCD_GPIO_Config);
180
181 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_4;
182 GPIO_Init(GPIOD, &LCD_GPIO_Config);
183
184 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_5;
185 GPIO_Init(GPIOD, &LCD_GPIO_Config);
186
187 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_11;
188 GPIO_Init(GPIOD, &LCD_GPIO_Config);
189
190
191 LCD_GPIO_Config.GPIO_Mode = GPIO_Mode_Out_PP;
192 LCD_GPIO_Config.GPIO_Speed = GPIO_Speed_50MHz;
193 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_1;
194 GPIO_Init(GPIOE, &LCD_GPIO_Config);
195
196 LCD_GPIO_Config.GPIO_Pin = GPIO_Pin_12;
197 GPIO_Init(GPIOD, &LCD_GPIO_Config);
198
199 user_LCD_RST(ENABLE);
200 user_LCD_RST(DISABLE);
201
202 user_LCD_BL(ENABLE);
203
204
205 }
206
207 //LCD复位信号控制函数
208 void user_LCD_RST(FunctionalState Status)
209 {
210
211 if(Status == DISABLE)
212 {
213 GPIOE->BSRR = GPIO_Pin_1;
214 }
215
216 else
217 {
218 GPIOE->BRR = GPIO_Pin_1;
219 }
220
221
222 }
223
224 //LCD背光信号控制函数
225 void user_LCD_BL(FunctionalState Status)
226 {
227 if(Status == DISABLE)
228 {
229 GPIOD->BSRR = GPIO_Pin_12;
230 }
231
232 else
233 {
234 GPIOD->BRR = GPIO_Pin_12;
235 }
236
237 }
238
239 //FSMC配置函数
240 void user_FSMC_Config(void)
241 {
242 FSMC_NORSRAMTimingInitTypeDef LCD_FSMC_Timing;
243 FSMC_NORSRAMInitTypeDef LCD_FSMC_Config;
244
245 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
246
247 LCD_FSMC_Timing.FSMC_AccessMode = FSMC_AccessMode_B;
248 LCD_FSMC_Timing.FSMC_AddressHoldTime = 0x00;
249 LCD_FSMC_Timing.FSMC_AddressSetupTime = 0x01;
250 LCD_FSMC_Timing.FSMC_BusTurnAroundDuration = 0x00;
251 LCD_FSMC_Timing.FSMC_CLKDivision = 0x00;
252 LCD_FSMC_Timing.FSMC_DataLatency = 0x00;
253 LCD_FSMC_Timing.FSMC_DataLatency = 0x00;
254 LCD_FSMC_Timing.FSMC_DataSetupTime = 0x04;
255
256
257 LCD_FSMC_Config.FSMC_AsynchronousWait = FSMC_AsynchronousWait_Disable;
258 LCD_FSMC_Config.FSMC_Bank = FSMC_Bank1_NORSRAM1;
259 LCD_FSMC_Config.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
260 LCD_FSMC_Config.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
261 LCD_FSMC_Config.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
262 LCD_FSMC_Config.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
263 LCD_FSMC_Config.FSMC_MemoryType = FSMC_MemoryType_NOR;
264 LCD_FSMC_Config.FSMC_ReadWriteTimingStruct = &LCD_FSMC_Timing;
265 LCD_FSMC_Config.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
266 LCD_FSMC_Config.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
267 LCD_FSMC_Config.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
268 LCD_FSMC_Config.FSMC_WrapMode = FSMC_WrapMode_Disable;
269 LCD_FSMC_Config.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
270 LCD_FSMC_Config.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
271 LCD_FSMC_Config.FSMC_WriteTimingStruct = &LCD_FSMC_Timing;
272
273 FSMC_NORSRAMInit(&LCD_FSMC_Config);
274 FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM1, ENABLE);
275
276
277
278 }
279
280 //LCD对应的IC控制寄存器配置函数，这个配置与LCD上控制芯片相关，如何配置应该是向供应商获取的
281 void user_LCD_REG_Config(void)
282 {
283 /* Power control B (CFh) */
284
285 user_LCD_CMD( 0xCF );
286 user_LCD_DATA ( 0x00 );
287 user_LCD_DATA ( 0x81 );
288 user_LCD_DATA ( 0x30 );
289
290 /* Power on sequence control (EDh) */
291
292 user_LCD_CMD ( 0xED );
293 user_LCD_DATA ( 0x64 );
294 user_LCD_DATA ( 0x03 );
295 user_LCD_DATA ( 0x12 );
296 user_LCD_DATA ( 0x81 );
297
298 /* Driver timing control A (E8h) */
299
300 user_LCD_CMD ( 0xE8 );
301 user_LCD_DATA ( 0x85 );
302 user_LCD_DATA ( 0x10 );
303 user_LCD_DATA ( 0x78 );
304
305 /* Power control A (CBh) */
306
307 user_LCD_CMD ( 0xCB );
308 user_LCD_DATA ( 0x39 );
309 user_LCD_DATA ( 0x2C );
310 user_LCD_DATA ( 0x00 );
311 user_LCD_DATA ( 0x34 );
312 user_LCD_DATA ( 0x02 );
313
314 /* Pump ratio control (F7h) */
315
316 user_LCD_CMD ( 0xF7 );
317 user_LCD_DATA ( 0x20 );
318
319 /* Driver timing control B */
320
321 user_LCD_CMD ( 0xEA );
322 user_LCD_DATA ( 0x00 );
323 user_LCD_DATA ( 0x00 );
324
325 /* Frame Rate Control (In Normal Mode/Full Colors) (B1h) */
326
327 user_LCD_CMD ( 0xB1 );
328 user_LCD_DATA ( 0x00 );
329 user_LCD_DATA ( 0x1B );
330
331 /* Display Function Control (B6h) */
332
333 user_LCD_CMD ( 0xB6 );
334 user_LCD_DATA ( 0x0A );
335 user_LCD_DATA ( 0xA2 );
336
337 /* Power Control 1 (C0h) */
338
339 user_LCD_CMD ( 0xC0 );
340 user_LCD_DATA ( 0x35 );
341
342 /* Power Control 2 (C1h) */
343
344 user_LCD_CMD( 0xC1 );
345 user_LCD_DATA( 0x11 );
346
347 /* VCOM Control 1 (C5h) */
348 user_LCD_CMD( 0xC5 );
349 user_LCD_DATA( 0x45 );
350 user_LCD_DATA( 0x45 );
351
352 /* VCOM Control 2 (C7h) */
353 user_LCD_CMD ( 0xC7 );
354 user_LCD_DATA ( 0xA2 );
355
356 /* Enable 3G (F2h) */
357 user_LCD_CMD ( 0xF2 );
358 user_LCD_DATA ( 0x00 );
359
360 /* Gamma Set (26h) */
361 user_LCD_CMD ( 0x26 );
362 user_LCD_DATA ( 0x01 );
363
364
365 /* Positive Gamma Correction */
366 user_LCD_CMD ( 0xE0 ); //Set Gamma
367 user_LCD_DATA ( 0x0F );
368 user_LCD_DATA ( 0x26 );
369 user_LCD_DATA ( 0x24 );
370 user_LCD_DATA ( 0x0B );
371 user_LCD_DATA ( 0x0E );
372 user_LCD_DATA ( 0x09 );
373 user_LCD_DATA ( 0x54 );
374 user_LCD_DATA ( 0xA8 );
375 user_LCD_DATA ( 0x46 );
376 user_LCD_DATA ( 0x0C );
377 user_LCD_DATA ( 0x17 );
378 user_LCD_DATA ( 0x09 );
379 user_LCD_DATA ( 0x0F );
380 user_LCD_DATA ( 0x07 );
381 user_LCD_DATA ( 0x00 );
382
383 /* Negative Gamma Correction (E1h) */
384 user_LCD_CMD ( 0XE1 ); //Set Gamma
385 user_LCD_DATA ( 0x00 );
386 user_LCD_DATA ( 0x19 );
387 user_LCD_DATA ( 0x1B );
388 user_LCD_DATA ( 0x04 );
389 user_LCD_DATA ( 0x10 );
390 user_LCD_DATA ( 0x07 );
391 user_LCD_DATA ( 0x2A );
392 user_LCD_DATA ( 0x47 );
393 user_LCD_DATA ( 0x39 );
394 user_LCD_DATA ( 0x03 );
395 user_LCD_DATA ( 0x06 );
396 user_LCD_DATA ( 0x06 );
397 user_LCD_DATA ( 0x30 );
398 user_LCD_DATA ( 0x38 );
399 user_LCD_DATA ( 0x0F );
400
401 /* memory access control set */
402
403 user_LCD_CMD ( 0x36 );
404 user_LCD_DATA ( 0xC8 ); /*���� ���Ͻǵ� (���)�����½� (�յ�)ɨ�跽ʽ*/
405
406
407 /* column address control set */
408 user_LCD_CMD ( 0x2A );
409 user_LCD_DATA ( 0x00 );
410 user_LCD_DATA ( 0x00 );
411 user_LCD_DATA ( 0x00 );
412 user_LCD_DATA ( 0xEF );
413
414 /* page address control set */
415
416 user_LCD_CMD ( 0x2B );
417 user_LCD_DATA ( 0x00 );
418 user_LCD_DATA ( 0x00 );
419 user_LCD_DATA ( 0x01 );
420 user_LCD_DATA ( 0x3F );
421
422 /* Pixel Format Set (3Ah) */
423
424 user_LCD_CMD ( 0x3a );
425 user_LCD_DATA ( 0x55 );
426
427 /* Sleep Out (11h) */
428 user_LCD_CMD ( 0x11 );
429 //ILI9341_Delay ( 0xAFFf<<2 );
430
431
432 /* Display ON (29h) */
433 user_LCD_CMD ( 0x29 );
434
435
436
437 }
438
439 //LCD命令操作函数
440 void user_LCD_CMD(uint16_t cmd)
441 {
442 *(volatile uint16_t *) (LCD_CMD) = cmd;
443
444 }
445
446 //LCD数据写入函数
447 void user_LCD_DATA(uint16_t data)
448 {
449 *(volatile uint16_t *) (LCD_DATA) = data;
450
451 }
452
453
454
455 //LCD扫描函数，这里配置为模式六，即X--240, Y--320，X从左到右，Y从上到下扫描
456 void user_LCD_Scan(void)
457 {
458
459 user_LCD_CMD(0x36);
460 //user_LCD_DATA(0x08 | (6 << 5));
461 user_LCD_CMD(0x68);
462
463 user_LCD_CMD(0x2A);
464 user_LCD_DATA(0x00);
465 user_LCD_DATA(0x00);
466 user_LCD_DATA(((240 - 1) >> 8)&0xFF); //因为从0开始，所以需要-1
467 user_LCD_DATA((240 - 1) &0xFF);
468
469
470
471 user_LCD_CMD(0x2B);
472 user_LCD_DATA(0x00);
473 user_LCD_DATA(0x00);
474 user_LCD_DATA(((320 - 1) >> 8)&0xFF);
475 user_LCD_DATA((320 - 1) &0xFF);
476
477 // user_LCD_CMD(0x2C); //这条语句后面没有跟填充的数据，去掉也不影响，这里应该是多余的
478
479
480
481 }
482
483 //LCD初始化函数
484 void user_LCD_Init(void)
485 {
486 user_LCD_GPIO_Config();
487 user_FSMC_Config();
488
489 user_LCD_REG_Config();
490
491 user_LCD_Scan();
492 }
493
494
495 //初始化整个屏幕
496 void user_View_Window(uint16_t lcd_x, uint16_t lcd_y, uint16_t lcd_width, uint16_t lcd_height)
497 {
498
499 user_LCD_CMD(0x2A); //行初始化命令
500 user_LCD_DATA(lcd_x >> 8); //行起始点坐标,先给高8bit
501 user_LCD_DATA(lcd_x & 0xFF);
502 user_LCD_DATA((lcd_x + lcd_width - 1) >> 8 ); //行结束点坐标，先给高8bit
503 user_LCD_DATA((lcd_x + lcd_width -1) & 0xFF);
504
505
506 user_LCD_CMD(0x2B); //列初始化命令
507 user_LCD_DATA(lcd_y >> 8); //列起始点坐标,先给高8bit
508 user_LCD_DATA(lcd_y & 0xFF);
509 user_LCD_DATA((lcd_y + lcd_height -1 ) >> 8); //列结束点坐标，先给高8bit
510 user_LCD_DATA((lcd_y + lcd_height -1 ) & 0xFF);
511
512 }
513
514 //单个字符显示函数
515 void user_lcd_display_char(uint16_t x, uint16_t y, char ch)
516 {
517 uint16_t a,b,c,d;
518
519 uint8_t * pfont;
520
521 a = ch - ' ';
522 b = 16;
523
524 pfont = (uint8_t *)&ASCII8x16_Table[a * b]; //找到字模开始的位置，一个字的字模占16个字节
525
526 user_View_Window(x, y, 8, 16); //显示单个字模所需屏幕尺寸
527
528 user_LCD_CMD(0x2C); //填充像素命令
529
530 for(c = 0; c < 16; c++)
531 {
532 for(d = 0; d < 8; d++)
533 {
534 if(*pfont & (0x80 >> d))
535 {
536 user_LCD_DATA(TEXTCOLOR);
537 }
538 else
539 {
540 user_LCD_DATA(BACKGROUND);
541 }
542
543 }
544 pfont++;
545 }
546
547
548
549
550
551
552 }
553
554 //清屏函数，将屏幕配置为黑色
555 void user_lcd_clear(void)
556 {
557 user_View_Window(0, 0, 240, 320);
558 user_lcd_fill_color(240*320, BACKGROUND);
559
560
561 }
562
563 //整个屏幕填充的颜色函数
564 void user_lcd_fill_color(uint32_t fill_lcd, uint16_t color)
565 {
566 uint32_t i;
567
568 user_LCD_CMD(0x2C);
569 for(i = 0; i < fill_lcd; i++)
570 {
571 user_LCD_DATA(color);
572
573 }
574
575 }
576
577 //显示英文字符串函数
578 void user_lcd_display_string(char * pchar)
579 {
580 uint16_t x = 0,y = 0;
581
582 while(*pchar != '\0')
583 {
584
585 if((x + 8) > 240)
586 {
587 x = 0;
588 y += 16;
589 }
590 if((y + 16) > 320)
591 {
592 x = 0;
593 y = 0;
594 }
595
596 user_lcd_display_char(x, y, *pchar);
597
598 pchar++;
599 x +=8;
600
601
602 }
603
604
605 }
606
607 //时间延时函数
608 void time_delay(volatile uint32_t t)
609 {
610 uint32_t time = t;
611 uint32_t i;
612
613 for(i = 0; i < time; i++)
614 {
615
616 }
617
618 }
View Code
4. 在main.c中添加如下代码
1 #include "stm32f10x.h"
2 #include "user_fsmc_lcd.h"
3
4
5 int main(void)
6 {
7 user_LCD_Init();
8
9 //user_LCD_Scan();
10
11 while(1)
12 {
13 user_lcd_clear();
14
15 user_lcd_display_string("it's test!");
16
17 time_delay(0xFFFFFF);
18
19 }
20
21 }
View Code
总结：
1. void user_LCD_REG_Config(void)这个LCD 控制寄存器配置没有搞清楚是要怎么配置，有可能直接是向ILI9341芯片厂商索取的
2. 本实验有个很奇怪的现象就是，每次开关开发的电源时，LCD会白屏一段时间，其多次开关后，会一直白屏，原因暂未找到
实验源码：
链接：https://pan.baidu.com/s/1xo0L4i4MnQllpgtzd1n2Hg
提取码：whaa
标签：0x00,FSMC,笔记,STM32,LCD,user,GPIO,DATA 来源： https://www.cnblogs.com/QSHL/p/10802294.html