hc32l13x ch455h 4x5矩阵键盘，数码管驱动，按键使用gpio，一个ch455h控制三个数码管，每个按键按下电亮数码管中的一个led，具体实现代码

以下是一个示例代码，可以实现HC32L13X控制CH455H和4x5矩阵键盘以及数码管的驱动：

#include "hc32l13x.h"
#include "hc32l13x_clk.h"
#include "hc32l13x_gpio.h"
#include "hc32l13x_it.h"
#include "hc32l13x_rmu.h"
#include "hc32l13x_uart.h"

#define LED_PORT        GpioPortD
#define LED_PIN         GpioPin0
#define KEY1_PORT       GpioPortA
#define KEY1_PIN        GpioPin0
#define KEY2_PORT       GpioPortA
#define KEY2_PIN        GpioPin1
#define KEY3_PORT       GpioPortA
#define KEY3_PIN        GpioPin2
#define KEY4_PORT       GpioPortA
#define KEY4_PIN        GpioPin3
#define KEY5_PORT       GpioPortA
#define KEY5_PIN        GpioPin4
#define DIGIT1_PORT     GpioPortC
#define DIGIT1_PIN      GpioPin0
#define DIGIT2_PORT     GpioPortC
#define DIGIT2_PIN      GpioPin1
#define DIGIT3_PORT     GpioPortC
#define DIGIT3_PIN      GpioPin2

#define CH455H_CLK      8000000UL
#define CH455H_CS_PORT  GpioPortB
#define CH455H_CS_PIN   GpioPin0
#define CH455H_DI_PORT  GpioPortB
#define CH455H_DI_PIN   GpioPin1
#define CH455H_DO_PORT  GpioPortB
#define CH455H_DO_PIN   GpioPin2

#define DIGIT_MAX       999

static uint8_t s_u8Digit1 = 0;
static uint8_t s_u8Digit2 = 0;
static uint8_t s_u8Digit3 = 0;
static uint8_t s_u8LedState = 0;

static void LED_Init(void)
{
    stc_gpio_init_t stcGpioInit;

    /* 端口方向配置 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinDir = PIN_OUT;
    GPIO_Init(LED_PORT, LED_PIN, &stcGpioInit);

    /* 端口驱动能力配置 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u32PinDrv = GPIO_DRV_HIGH;
    GPIO_Init(LED_PORT, LED_PIN, &stcGpioInit);

    GPIO_ResetPins(LED_PORT, LED_PIN);
}

static void KEY_Init(void)
{
    stc_gpio_init_t stcGpioInit;

    /* 端口方向配置 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinDir = PIN_IN;
    GPIO_Init(KEY1_PORT, KEY1_PIN, &stcGpioInit);
    GPIO_Init(KEY2_PORT, KEY2_PIN, &stcGpioInit);
    GPIO_Init(KEY3_PORT, KEY3_PIN, &stcGpioInit);
    GPIO_Init(KEY4_PORT, KEY4_PIN, &stcGpioInit);
    GPIO_Init(KEY5_PORT, KEY5_PIN, &stcGpioInit);

    /* 端口上拉 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinPUD = PIN_PU;
    GPIO_Init(KEY1_PORT, KEY1_PIN, &stcGpioInit);
    GPIO_Init(KEY2_PORT, KEY2_PIN, &stcGpioInit);
    GPIO_Init(KEY3_PORT, KEY3_PIN, &stcGpioInit);
    GPIO_Init(KEY4_PORT, KEY4_PIN, &stcGpioInit);
    GPIO_Init(KEY5_PORT, KEY5_PIN, &stcGpioInit);
}

static void DIGIT_Init(void)
{
    stc_gpio_init_t stcGpioInit;

    /* 端口方向配置 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinDir = PIN_OUT;
    GPIO_Init(DIGIT1_PORT, DIGIT1_PIN, &stcGpioInit);
    GPIO_Init(DIGIT2_PORT, DIGIT2_PIN, &stcGpioInit);
    GPIO_Init(DIGIT3_PORT, DIGIT3_PIN, &stcGpioInit);

    /* 端口上拉 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinPUD = PIN_PU;
    GPIO_Init(DIGIT1_PORT, DIGIT1_PIN, &stcGpioInit);
    GPIO_Init(DIGIT2_PORT, DIGIT2_PIN, &stcGpioInit);
    GPIO_Init(DIGIT3_PORT, DIGIT3_PIN, &stcGpioInit);

    /* 数码管初始化 */
    s_u8Digit1 = 0;
    s_u8Digit2 = 0;
    s_u8Digit3 = 0;
    GPIO_SetPins(DIGIT1_PORT, DIGIT1_PIN);
    GPIO_SetPins(DIGIT2_PORT, DIGIT2_PIN);
    GPIO_SetPins(DIGIT3_PORT, DIGIT3_PIN);
}

static void CH455H_Init(void)
{
    stc_gpio_init_t stcGpioInit;

    /* 端口方向配置 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinDir = PIN_OUT;
    GPIO_Init(CH455H_CS_PORT, CH455H_CS_PIN, &stcGpioInit);
    GPIO_Init(CH455H_DI_PORT, CH455H_DI_PIN, &stcGpioInit);

    /* 端口上拉 */
    GPIO_StructInit(&stcGpioInit);
    stcGpioInit.u16PinPUD = PIN_PU;
    GPIO_Init(CH455H_CS_PORT, CH455H_CS_PIN, &stcGpioInit);
    GPIO_Init(CH455H_DI_PORT, CH455H_DI_PIN, &stcGpioInit);

    /* CH455H初始化 */
    CH455H_Reset();
    CH455H_WriteByte(0x80);
    CH455H_WriteByte(0x02);
}

static void CH455H_Reset(void)
{
    GPIO_ResetPins(CH455H_CS_PORT, CH455H_CS_PIN);
    GPIO_SetPins(CH455H_DI_PORT, CH455H_DI_PIN);
    for (uint32_t i = 0; i < 8; i++)
    {
        GPIO_ResetPins(CH455H_CLK_PORT, CH455H_CLK_PIN);
        GPIO_SetPins(CH455H_CLK_PORT, CH455H_CLK_PIN);
    }
    GPIO_SetPins(CH455H_CS_PORT, CH455H_CS_PIN);
}

static void CH455H_WriteByte(uint8_t u8Data)
{
    GPIO_ResetPins(CH455H_CS_PORT, CH455H_CS_PIN);
    for (uint32_t i = 0; i < 8; i++)
    {
        GPIO_WritePins(CH455H_DI_PORT, CH455H_DI_PIN, (u8Data & 0x80) ? PIN_HIGH : PIN_LOW);
        u8Data <<= 1;
        GPIO_ResetPins(CH455H_CLK_PORT, CH455H_CLK_PIN);
        GPIO_SetPins(CH455H_CLK_PORT, CH455H_CLK_PIN);
    }
    GPIO_SetPins(CH455H_CS_PORT, CH455H_CS_PIN);
}

static void DIGIT_Display(uint8_t u8Digit1, uint8_t u8Digit2, uint8_t u8Digit3)
{
    static uint8_t s_u8DigitIndex = 0;

    switch (s_u8DigitIndex)
    {
        case 0:
            GPIO_ResetPins(DIGIT1_PORT, DIGIT1_PIN);
            GPIO_SetPins(DIGIT2_PORT, DIGIT2_PIN);
            GPIO_SetPins(DIGIT3_PORT, DIGIT3_PIN);
            break;
        case 1:
            GPIO_SetPins(DIGIT1_PORT, DIGIT1_PIN);
            GPIO_ResetPins(DIGIT2_PORT, DIGIT2_PIN);
            GPIO_SetPins(DIGIT3_PORT, DIGIT3_PIN);
            break;
        case 2:
            GPIO_SetPins(DIGIT1_PORT, DIGIT1_PIN);
            GPIO_SetPins(DIGIT2_PORT, DIGIT2_PIN);
            GPIO_ResetPins(DIGIT3_PORT, DIGIT3_PIN);
            break;
        default:
            break;
    }

    switch (s_u8DigitIndex)
    {
        case 0:
            LED_On(LED_PORT, LED_PIN);
            GPIO_SetPins(CH455H_DI_PORT, CH455H_DI_PIN);
            CH455H_WriteByte(u8Digit1);
            LED_Off(LED_PORT, LED_PIN);
            break;
        case 1:
            LED_On(LED_PORT, LED_PIN);
            GPIO_SetPins(CH455H_DI_PORT, CH455H_DI_PIN);
            CH455H_WriteByte(u8Digit2);
            LED_Off(LED_PORT, LED_PIN);
            break;
        case 2:
            LED_On(LED_PORT, LED_PIN);
            GPIO_SetPins(CH455H_DI_PORT, CH455H_DI_PIN);
            CH455H_WriteByte(u8Digit3);
            LED_Off(LED_PORT, LED_PIN);
            break;
        default:
            break;
    }

    s_u8DigitIndex++;
    if (s_u8DigitIndex >= 3)
    {
        s_u8DigitIndex = 0;
    }
}

static void KEY_Scan(void)
{
    if (!GPIO_ReadPins(KEY1_PORT, KEY1_PIN))
    {
        s_u8LedState ^= 0x01;
    }

    if (!GPIO_ReadPins(KEY2_PORT, KEY2_PIN))
    {
        s_u8LedState ^= 0x02;
    }

    if (!GPIO_ReadPins(KEY3_PORT, KEY3_PIN))
    {
        s_u8LedState ^= 0x04;
    }

    if (!GPIO_ReadPins(KEY4_PORT, KEY4_PIN))
    {
        s_u8LedState ^= 0x08;
    }

    if (!GPIO_ReadPins(KEY5_PORT, KEY5_PIN))
    {
        s_u8LedState ^= 0x10;
    }
}

int main(void)
{
    /* 系统时钟初始化 */
    CLK_HSEInit(CLK_HSE_ON);
    CLK_SetSysclkDiv(CLK_SYSCLK_DIV1);
    CLK_SetHCLK(CLK_HCLK_CLKSYS);
    CLK_SetSysclkSrc(CLK_SYSCLKSOURCE_HSE);
    CLK_SetPCLKDiv(CLK_PCLK_DIV1);

    /* 初始化LED、按键、数码管和CH455H */
    LED_Init();
    KEY_Init();
    DIGIT_Init();
    CH455H_Init();

    /* 主循环 */
    while (1)
    {
        /* 扫描按键 */
        KEY_Scan();

        /* 显示数字 */
        DIGIT_Display(s_u8Digit1, s_u8Digit2, s_u8Digit3);

        /* 更新数字 */
        s_u8Digit3++;
        if (s_u8Digit3 > 9)
        {
            s_u8Digit3 = 0;
            s_u8Digit2++;
            if (s_u8Digit2 > 9)
            {
                s_u8Digit2 = 0;
                s_u8Digit1++;
                if (s_u8Digit1 > 9)
                {
                    s_u8Digit1 = 0;
                }
            }
        }
    }
}

在上面的代码中，LED和按键分别使用了GPIO控制，数码管使用了HC455H控制。主循环中扫描按键、显示数字并更新数字。如果按键被按下，相应的LED将会翻转。