stm32f103c8t6驱动TFT-lcd显示屏代码

要驱动TFT-LCD显示屏，您需要一个TFT-LCD控制器驱动芯片。STM32F103C8T6并没有内置这样的控制器，因此您需要使用外部控制器，例如ILI9341。

以下是使用STM32F103C8T6和ILI9341驱动TFT-LCD显示屏的示例代码：

首先，您需要在STM32F103C8T6上配置SPI接口，并使用以下库函数进行初始化：

SPI_InitTypeDef SPI_InitStructure;

/* Enable SPI1 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);

/* SPI1 configuration */
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);

/* Enable SPI1 */
SPI_Cmd(SPI1, ENABLE);

接下来，您需要编写ILI9341的驱动程序。这里需要注意的是，ILI9341与TFT-LCD显示屏的连接方式可能不同，因此您需要根据您使用的具体显示屏和芯片进行修改。

以下是一个简单的ILI9341驱动程序，用于在TFT-LCD显示屏上显示颜色块：

#include "ili9341.h"

/* ILI9341 initialization */
void ili9341_init(void)
{
    /* Reset */
    GPIO_ResetBits(GPIOA, GPIO_Pin_1);
    delay_ms(100);
    GPIO_SetBits(GPIOA, GPIO_Pin_1);
    delay_ms(100);

    /* Software reset */
    ili9341_write_command(ILI9341_SWRESET);
    delay_ms(100);

    /* Power control A */
    ili9341_write_command(ILI9341_POWERA);
    ili9341_write_data(0x39);
    ili9341_write_data(0x2C);
    ili9341_write_data(0x00);
    ili9341_write_data(0x34);
    ili9341_write_data(0x02);
    ili9341_write_command(ILI9341_POWERB);
    ili9341_write_data(0x00);
    ili9341_write_data(0xC1);
    ili9341_write_data(0x30);

    /* Driver timing control A */
    ili9341_write_command(ILI9341_DTCA);
    ili9341_write_data(0x85);
    ili9341_write_data(0x00);
    ili9341_write_data(0x78);

    /* Driver timing control B */
    ili9341_write_command(ILI9341_DTCB);
    ili9341_write_data(0x00);
    ili9341_write_data(0x00);

    /* Power on sequence control */
    ili9341_write_command(ILI9341_POWER_SEQ);
    ili9341_write_data(0x64);
    ili9341_write_data(0x03);
    ili9341_write_data(0x12);
    ili9341_write_data(0x81);

    /* Pump ratio control */
    ili9341_write_command(ILI9341_PRC);
    ili9341_write_data(0x20);

    /* Power control 1 */
    ili9341_write_command(ILI9341_POWER1);
    ili9341_write_data(0x23);

    /* Power control 2 */
    ili9341_write_command(ILI9341_POWER2);
    ili9341_write_data(0x10);

    /* VCOM control 1 */
    ili9341_write_command(ILI9341_VCOM1);
    ili9341_write_data(0x3E);
    ili9341_write_data(0x28);

    /* VCOM control 2 */
    ili9341_write_command(ILI9341_VCOM2);
    ili9341_write_data(0x86);

    /* Memory access control */
    ili9341_write_command(ILI9341_MAC);
    ili9341_write_data(0x48);

    /* Pixel format */
    ili9341_write_command(ILI9341_PIXEL_FORMAT);
    ili9341_write_data(0x55);

    /* Frame rate control */
    ili9341_write_command(ILI9341_FRC);
    ili9341_write_data(0x00);
    ili9341_write_data(0x18);

    /* Display function control */
    ili9341_write_command(ILI9341_DFC);
    ili9341_write_data(0x08);
    ili9341_write_data(0x82);
    ili9341_write_data(0x27);

    /* 3GAMMA function disable */
    ili9341_write_command(ILI9341_3GAMMA_EN);
    ili9341_write_data(0x00);

    /* Gamma curve selected */
    ili9341_write_command(ILI9341_GAMMA);
    ili9341_write_data(0x01);

    /* Set gamma */
    ili9341_write_command(ILI9341_PGAMMA);
    ili9341_write_data(0x0F);
    ili9341_write_data(0x31);
    ili9341_write_data(0x2B);
    ili9341_write_data(0x0C);
    ili9341_write_data(0x0E);
    ili9341_write_data(0x08);
    ili9341_write_data(0x4E);
    ili9341_write_data(0xF1);
    ili9341_write_data(0x37);
    ili9341_write_data(0x07);
    ili9341_write_data(0x10);
    ili9341_write_data(0x03);
    ili9341_write_data(0x0E);
    ili9341_write_data(0x09);
    ili9341_write_data(0x00);

    /* Set gamma */
    ili9341_write_command(ILI9341_NGAMMA);
    ili9341_write_data(0x00);
    ili9341_write_data(0x0E);
    ili9341_write_data(0x14);
    ili9341_write_data(0x03);
    ili9341_write_data(0x11);
    ili9341_write_data(0x07);
    ili9341_write_data(0x31);
    ili9341_write_data(0xC1);
    ili9341_write_data(0x48);
    ili9341_write_data(0x08);
    ili9341_write_data(0x0F);
    ili9341_write_data(0x0C);
    ili9341_write_data(0x31);
    ili9341_write_data(0x36);
    ili9341_write_data(0x0F);

    /* Sleep out */
    ili9341_write_command(ILI9341_SLPOUT);
    delay_ms(120);

    /* Display on */
    ili9341_write_command(ILI9341_DISPON);
}

/* ILI9341 write command */
void ili9341_write_command(uint8_t command)
{
    GPIO_ResetBits(GPIOA, GPIO_Pin_3);
    SPI_I2S_SendData(SPI1, command);
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
}

/* ILI9341 write data */
void ili9341_write_data(uint8_t data)
{
    GPIO_SetBits(GPIOA, GPIO_Pin_3);
    SPI_I2S_SendData(SPI1, data);
    while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_BSY) == SET);
}

/* ILI9341 set address */
void ili9341_set_address(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2)
{
    ili9341_write_command(ILI9341_CASET);
    ili9341_write_data(x1 >> 8);
    ili9341_write_data(x1 & 0xFF);
    ili9341_write_data(x2 >> 8);
    ili9341_write_data(x2 & 0xFF);

    ili9341_write_command(ILI9341_PASET);
    ili9341_write_data(y1 >> 8);
    ili9341_write_data(y1 & 0xFF);
    ili9341_write_data(y2 >> 8);
    ili9341_write_data(y2 & 0xFF);

    ili9341_write_command(ILI9341_RAMWR);
}

/* ILI9341 draw pixel */
void ili9341_draw_pixel(uint16_t x, uint16_t y, uint16_t color)
{
    ili9341_set_address(x, y, x, y);
    ili9341_write_data(color >> 8);
    ili9341_write_data(color & 0xFF);
}

/* ILI9341 fill screen */
void ili9341_fill_screen(uint16_t color)
{
    uint32_t i;

    ili9341_set_address(0, 0, TFT_WIDTH - 1, TFT_HEIGHT - 1);

    for (i = 0; i < TFT_WIDTH * TFT_HEIGHT; i++) {
        ili9341_write_data(color >> 8);
        ili9341_write_data(color & 0xFF);
    }
}

最后，您可以使用以下代码在TFT-LCD显示屏上显示颜色块：

#define TFT_WIDTH  240
#define TFT_HEIGHT 320

int main(void)
{
    /* TFT-LCD initialization */
    ili9341_init();

    /* Fill screen with red color */
    ili9341_fill_screen(0xF800);

    /* Fill half screen with green color */
    ili9341_set_address(0, 0, TFT_WIDTH - 1, TFT_HEIGHT / 2 - 1);
    ili9341_fill_screen(0x07E0);

    /* Fill half screen with blue color */
    ili9341_set_address(0, TFT_HEIGHT / 2, TFT_WIDTH - 1, TFT_HEIGHT - 1);
    ili9341_fill_screen(0x001F);

    while (1);

    return 0;
}

这就是一个简单的使用STM32F103C8T6和ILI9341驱动TFT-LCD显示屏的示例代码，您可以根据您使用的具体显示屏和芯片进行修改。