GD32f303驱动SPI+RGB16位 LCD接口

为了驱动SPI+RGB 16位LCD接口，您需要进行以下步骤：

1. 配置SPI主机模式。

2. 配置SPI时钟。

3. 配置SPI引脚。

4. 配置RGB LCD控制器。

5. 编写数据传输函数。

以下是一个简单的示例代码，可以帮助您了解如何实现此功能：

#include "gd32f30x.h"

#define SPI_SPI                           SPI1
#define SPI_CLK                           RCU_SPI1
#define SPI_GPIO                          GPIOA
#define SPI_GPIO_CLK                      RCU_GPIOA
#define SPI_PIN_CS                        GPIO_PIN_4
#define SPI_PIN_SCK                       GPIO_PIN_5
#define SPI_PIN_MISO                      GPIO_PIN_6
#define SPI_PIN_MOSI                      GPIO_PIN_7

#define LCD_GPIO                          GPIOB
#define LCD_GPIO_CLK                      RCU_GPIOB
#define LCD_PIN_RST                       GPIO_PIN_0
#define LCD_PIN_CS                        GPIO_PIN_1
#define LCD_PIN_RS                        GPIO_PIN_2
#define LCD_PIN_WR                        GPIO_PIN_3
#define LCD_PIN_RD                        GPIO_PIN_4
#define LCD_DATA_PORT                     GPIOB
#define LCD_DATA_PORT_CLK                 RCU_GPIOB

void spi_init(void);
void lcd_init(void);
void lcd_write_command(uint16_t cmd);
void lcd_write_data(uint16_t data);

int main(void)
{
    spi_init();
    lcd_init();
    
    // 在这里写入LCD数据
    
    while (1);
}

void spi_init(void)
{
    /* 使能 SPI 时钟 */
    rcu_periph_clock_enable(SPI_CLK);

    /* 配置 SPI 引脚 */
    gpio_init(SPI_GPIO, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, SPI_PIN_CS | SPI_PIN_SCK | SPI_PIN_MISO | SPI_PIN_MOSI);
    gpio_af_set(SPI_GPIO, GPIO_AF_0, SPI_PIN_CS | SPI_PIN_SCK | SPI_PIN_MISO | SPI_PIN_MOSI);

    /* 配置 SPI 主机模式和时钟极性 */
    spi_parameter_struct spi_init_struct;
    spi_struct_para_init(&spi_init_struct);
    spi_init_struct.trans_mode           = SPI_TRANSMODE_FULLDUPLEX;
    spi_init_struct.device_mode          = SPI_MASTER;
    spi_init_struct.frame_size           = SPI_FRAMESIZE_16BIT;
    spi_init_struct.clock_polarity_phase = SPI_CK_PL_HIGH_PH_2EDGE;
    spi_init_struct.nss                  = SPI_NSS_SOFT;
    spi_init(SPI_SPI, &spi_init_struct);

    /* 配置 SPI 时钟 */
    spi_crc_polynomial_set(SPI_SPI, 7);
    spi_enable_crc(SPI_SPI);
    spi_data_length_config(SPI_SPI, SPI_DATALENGTH_16BIT);
    spi_nss_internal_software_config(SPI_SPI, SPI_NSS_SOFT);
    spi_enable(SPI_SPI);
}

void lcd_init(void)
{
    /* 使能 LCD 引脚时钟 */
    rcu_periph_clock_enable(LCD_GPIO_CLK);

    /* 配置 LCD 引脚 */
    gpio_init(LCD_GPIO, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, LCD_PIN_RST | LCD_PIN_CS | LCD_PIN_RS | LCD_PIN_WR | LCD_PIN_RD);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_RST | LCD_PIN_CS | LCD_PIN_RS | LCD_PIN_WR | LCD_PIN_RD);

    /* 配置 LCD 数据引脚 */
    gpio_init(LCD_DATA_PORT, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7);
    gpio_bit_reset(LCD_DATA_PORT, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7);

    /* 将 LCD 复位 */
    gpio_bit_set(LCD_GPIO, LCD_PIN_RST);
    delay_1ms(10);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_RST);
    delay_1ms(10);
    gpio_bit_set(LCD_GPIO, LCD_PIN_RST);
    delay_1ms(10);

    /* 配置 LCD 控制器 */
    lcd_write_command(0x11); delay_1ms(20);
    lcd_write_command(0xD0); lcd_write_data(0x07); lcd_write_data(0x42); lcd_write_data(0x18); delay_1ms(20);
    lcd_write_command(0xD1); lcd_write_data(0x00); lcd_write_data(0x07); lcd_write_data(0x10); delay_1ms(20);
    lcd_write_command(0xD2); lcd_write_data(0x01); lcd_write_data(0x02); delay_1ms(20);
    lcd_write_command(0xC0); lcd_write_data(0x10); lcd_write_data(0x3B); lcd_write_data(0x00); lcd_write_data(0x02); lcd_write_data(0x11); delay_1ms(20);
    lcd_write_command(0xC5); lcd_write_data(0x03); delay_1ms(20);
    lcd_write_command(0xC8); lcd_write_data(0x00); lcd_write_data(0x32); lcd_write_data(0x36); lcd_write_data(0x45); lcd_write_data(0x06); lcd_write_data(0x16); lcd_write_data(0x37); lcd_write_data(0x75); lcd_write_data(0x77); lcd_write_data(0x54); delay_1ms(20);
    lcd_write_command(0x36); lcd_write_data(0x0A); delay_1ms(20);
    lcd_write_command(0x3A); lcd_write_data(0x55); delay_1ms(20);
    lcd_write_command(0x29); delay_1ms(20);
}

void lcd_write_command(uint16_t cmd)
{
    gpio_bit_reset(LCD_GPIO, LCD_PIN_RS);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_CS);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_WR);

    spi_i2s_data_transmit(SPI_SPI, cmd);

    while (spi_i2s_flag_get(SPI_SPI, SPI_FLAG_TBE) == RESET);
    while (spi_i2s_flag_get(SPI_SPI, SPI_FLAG_BSY) == SET);

    gpio_bit_set(LCD_GPIO, LCD_PIN_WR);
    gpio_bit_set(LCD_GPIO, LCD_PIN_CS);
}

void lcd_write_data(uint16_t data)
{
    gpio_bit_set(LCD_GPIO, LCD_PIN_RS);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_CS);
    gpio_bit_reset(LCD_GPIO, LCD_PIN_WR);

    spi_i2s_data_transmit(SPI_SPI, data);

    while (spi_i2s_flag_get(SPI_SPI, SPI_FLAG_TBE) == RESET);
    while (spi_i2s_flag_get(SPI_SPI, SPI_FLAG_BSY) == SET);

    gpio_bit_set(LCD_GPIO, LCD_PIN_WR);
    gpio_bit_set(LCD_GPIO, LCD_PIN_CS);
}

void delay_1ms(uint32_t count)
{
    int i;
    for (i = 0; i < count * 2000; i++);
}

请注意，此示例代码可能需要进行修改以适配您的具体硬件。