NUCLEO-H533RE开发板测评07（SPI应用）

qzc0927

NUCLEO-H533RE开发板测评07（SPI应用） [复制链接]

<div class='showpostmsg'>本次测评下SPI接口，采用4.0的LCD的屏幕  硬件接口如下： | 序号 | 引脚标号| 说明 | | ------------------------------------------------------------ | --------- | --------------------------------------------------- | | 1 | VCC | 5V/3.3V电源输入 | | 2 | GND | 接地 | | 3 | CS | 液晶屏片选信号，低电平使能 | | 4 | RESET | 液晶屏复位信号，低电平复位 | | 5 | DC/RS | 液晶屏命令/数据选择信号，低电平：命令，高电平：数据 | | 6 | SDI(MOSI) | 液晶屏SPI总线写数据信号 | | 7 | SCK | 液晶屏SPI总线时钟信号 | | 8 | LED | 背光控制，高电平点亮，如无需控制则接3.3V常亮 | | 9 | SDO(MISO) | SPI总线读数据信号，如无需读取功能则可不接 | | (以下为触摸屏信号线接线，如无需触摸或者模块本身不带触摸功能，可不连接) | | | | 10 | T_CLK | 触摸SPI总线时钟信号 | | 11 | T_CS | 触摸屏片选信号，低电平使能 | | 12 | T_DIN | 触摸SPI总线输入 | | 13 | T_DO | 触摸SPI总线输出 | | 14 | T_IRQ | 触摸屏中断信号，检测到触摸时为低电平 | 软件编程： CubeMX设置 配置SPI为全双工   设置波特率为20Mbit/s,也可以设置更高，理论上可以达到100MBit/s；这里采用杜邦线连接，最高时速达不到； 总界面配置如下：  采用SPI1通讯； 软件代码程序编程： SPI写函数： ```C u8 SPI_WriteByte(SPI_TypeDef* SPIx,u8 Byte) { HAL_SPI_Transmit(&hspi1, &Byte, 1, 0x100); } ``` GPIO口配置函数 ```C void LCD_GPIOInit(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; __HAL_RCC_GPIOB_CLK_ENABLE(); /*Configure GPIO pin : PA5 */ GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_10; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); } ``` LCD初始化函数： ```C void LCD_Init(void) { // SPI1_Init(); //硬件SPI1初始化 LCD_GPIOInit();//LCD GPIO初始化 LCD_RESET(); //LCD 复位 //*************4.0inch ILI9486初始化**********// LCD_WR_REG(0XF1); LCD_WR_DATA(0x36); LCD_WR_DATA(0x04); LCD_WR_DATA(0x00); LCD_WR_DATA(0x3C); LCD_WR_DATA(0X0F); LCD_WR_DATA(0x8F); LCD_WR_REG(0XF2); LCD_WR_DATA(0x18); LCD_WR_DATA(0xA3); LCD_WR_DATA(0x12); LCD_WR_DATA(0x02); LCD_WR_DATA(0XB2); LCD_WR_DATA(0x12); LCD_WR_DATA(0xFF); LCD_WR_DATA(0x10); LCD_WR_DATA(0x00); LCD_WR_REG(0XF8); LCD_WR_DATA(0x21); LCD_WR_DATA(0x04); LCD_WR_REG(0XF9); LCD_WR_DATA(0x00); LCD_WR_DATA(0x08); LCD_WR_REG(0x36); LCD_WR_DATA(0x08); LCD_WR_REG(0xB4); LCD_WR_DATA(0x00); LCD_WR_REG(0xC1); LCD_WR_DATA(0x47); //0x41 LCD_WR_REG(0xC5); LCD_WR_DATA(0x00); LCD_WR_DATA(0xAF); //0x91 LCD_WR_DATA(0x80); LCD_WR_DATA(0x00); LCD_WR_REG(0xE0); LCD_WR_DATA(0x0F); LCD_WR_DATA(0x1F); LCD_WR_DATA(0x1C); LCD_WR_DATA(0x0C); LCD_WR_DATA(0x0F); LCD_WR_DATA(0x08); LCD_WR_DATA(0x48); LCD_WR_DATA(0x98); LCD_WR_DATA(0x37); LCD_WR_DATA(0x0A); LCD_WR_DATA(0x13); LCD_WR_DATA(0x04); LCD_WR_DATA(0x11); LCD_WR_DATA(0x0D); LCD_WR_DATA(0x00); LCD_WR_REG(0xE1); LCD_WR_DATA(0x0F); LCD_WR_DATA(0x32); LCD_WR_DATA(0x2E); LCD_WR_DATA(0x0B); LCD_WR_DATA(0x0D); LCD_WR_DATA(0x05); LCD_WR_DATA(0x47); LCD_WR_DATA(0x75); LCD_WR_DATA(0x37); LCD_WR_DATA(0x06); LCD_WR_DATA(0x10); LCD_WR_DATA(0x03); LCD_WR_DATA(0x24); LCD_WR_DATA(0x20); LCD_WR_DATA(0x00); LCD_WR_REG(0x3A); LCD_WR_DATA(0x66); LCD_WR_REG(0x11); LCD_WR_REG(0x36); LCD_WR_DATA(0x28); HAL_Delay(120); LCD_WR_REG(0x29); LCD_direction(USE_HORIZONTAL);//设置LCD显示方向 // LCD_LED=1;//点亮背光 HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET); LCD_Clear(WHITE);//清全屏白色 } ``` 英文字符显示： ```C void English_Font_test(void) { DrawTestPage("测试5:英文显示测试"); Show_Str(10,30,BLUE,YELLOW,"6X12:abcdefghijklmnopqrstuvwxyz0123456789",12,0); Show_Str(10,45,BLUE,YELLOW,"6X12:ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",12,1); Show_Str(10,60,BLUE,YELLOW,"6X12:~!@#$%^&*()_+{}:<>?/|-+.",12,0); Show_Str(10,80,BLUE,YELLOW,"8X16:abcdefghijklmnopqrstuvwxyz0123456789",16,0); Show_Str(10,100,BLUE,YELLOW,"8X16:ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",16,1); Show_Str(10,120,BLUE,YELLOW,"8X16:~!@#$%^&*()_+{}:<>?/|-+.",16,0); HAL_Delay(1200); } ``` 实现结果：  中文显示: ```C void Chinese_Font_test(void) { DrawTestPage("测试6:中文显示测试"); Show_Str(10,30,BLUE,YELLOW,"16X16:字体测试",16,0); Show_Str(10,50,BLUE,YELLOW,"16X16:字体测试",16,0); Show_Str(10,70,BLUE,YELLOW,"24X24:中文测试",24,1); Show_Str(10,100,BLUE,YELLOW,"32X32:字体测试",32,1); HAL_Delay(1200); } ``` 实现结果： </div><script> var loginstr = '<div class="locked">查看本帖全部内容，请<a href="javascript:;" style="color:#e60000" class="loginf">登录</a>或者<a href="https://bbs.eeworld.com.cn/member.php?mod=register_eeworld.php&action=wechat" style="color:#e60000" target="_blank">注册</a></div>'; if(parseInt(discuz_uid)==0){ } </script><script type="text/javascript">(function(d,c){var a=d.createElement("script"),m=d.getElementsByTagName("script")[0],eewurl="//counter.eeworld.com.cn/pv/count/";a.src=eewurl+c;m.parentNode.insertBefore(a,m)})(document,523)</script>