帮我写stm32 标准库 TFTLCD屏幕滚动显示，并且按键可以功能翻页代码

好的，下面是一个使用STM32标准库实现TFTLCD屏幕滚动显示，并且按键可以翻页的示例代码，仅供参考：

#include "stm32f10x.h"
#include "stm32f10x_dma.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_spi.h"
#include "stm32f10x_exti.h"

#define TFTLCD_WIDTH    240
#define TFTLCD_HEIGHT   320

#define TFTLCD_DC_PIN   GPIO_Pin_2
#define TFTLCD_DC_PORT  GPIOA
#define TFTLCD_CS_PIN   GPIO_Pin_4
#define TFTLCD_CS_PORT  GPIOA
#define TFTLCD_RST_PIN  GPIO_Pin_5
#define TFTLCD_RST_PORT GPIOA

#define KEY_UP_PIN      GPIO_Pin_8
#define KEY_UP_PORT     GPIOB
#define KEY_DOWN_PIN    GPIO_Pin_9
#define KEY_DOWN_PORT   GPIOB

uint16_t TFTLCD_Buffer1[TFTLCD_WIDTH * TFTLCD_HEIGHT];
uint16_t TFTLCD_Buffer2[TFTLCD_WIDTH * TFTLCD_HEIGHT];
uint16_t *TFTLCD_Buffer_Read = TFTLCD_Buffer1;
uint16_t *TFTLCD_Buffer_Write = TFTLCD_Buffer2;

void TFTLCD_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    SPI_InitTypeDef SPI_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1 | RCC_APB2Periph_GPIOA, ENABLE);

    GPIO_InitStructure.GPIO_Pin = TFTLCD_DC_PIN | TFTLCD_CS_PIN | TFTLCD_RST_PIN;
    GPIO