请以STM32G030为硬件，写出一个用状态机方式运行的，能识别5个独立按键的程序，独立按键分别命名为上下左右中，同时能够识别双按键同时按下，同时长按，同时短按，单按键双击，单按键长按

好的，以下是一个使用状态机方式运行的，能够识别5个独立按键并且能够识别双按键同时按下、长按、短按、单按键双击、单按键长按的程序。这个程序使用了STM32G030为硬件平台，使用了HAL库进行编程。

#include "stm32g0xx_hal.h"
#include <stdbool.h>

// 定义按键名称
#define KEY_UP    0x01
#define KEY_DOWN  0x02
#define KEY_LEFT  0x04
#define KEY_RIGHT 0x08
#define KEY_CENTER 0x10

// 定义按键状态
typedef enum {
    KEY_RELEASED = 0,  // 按键释放状态
    KEY_PRESSED = 1    // 按键按下状态
} KeyState;

// 定义按键信息结构体
typedef struct {
    GPIO_TypeDef* port; // GPIO端口
    uint16_t pin;       // GPIO引脚
    bool inverted;      // 是否反相
    KeyState state;     // 按键状态
    uint32_t time;      // 按键按下的时间
    uint8_t name;       // 按键名称
} KeyInfo;

// 初始化按键
void KeyInit(KeyInfo* key, GPIO_TypeDef* port, uint16_t pin, bool inverted, uint8_t name)
{
    key->port = port;
    key->pin = pin;
    key->inverted = inverted;
    key->state = KEY_RELEASED;
    key->time = 0;
    key->name = name;
    
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    GPIO_InitStruct.Pin = pin;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(port, &GPIO_InitStruct);
}

// 获取按键状态
KeyState GetKeyState(KeyInfo* key)
{
    bool isPressed = HAL_GPIO_ReadPin(key->port, key->pin) ^ key->inverted;
    if (isPressed && (key->state == KEY_RELEASED)) {
        key->state = KEY_PRESSED;
        key->time = HAL_GetTick();
    } else if (!isPressed && (key->state == KEY_PRESSED)) {
        key->state = KEY_RELEASED;
    }
    return key->state;
}

// 判断是否为长按事件
bool IsLongPress(KeyInfo* key)
{
    if (GetKeyState(key) == KEY_PRESSED) {
        uint32_t timeDiff = HAL_GetTick() - key->time;
        if (timeDiff >= 1000) {
            return true;
        }
    }
    return false;
}

// 判断是否为短按事件
bool IsShortPress(KeyInfo* key)
{
    if (GetKeyState(key) == KEY_RELEASED) {
        uint32_t timeDiff = HAL_GetTick() - key->time;
        if (timeDiff < 1000) {
            return true;
        }
    }
    return false;
}

// 判断是否为双击事件
bool IsDoubleClick(KeyInfo* key)
{
    if (GetKeyState(key) == KEY_RELEASED) {
        uint32_t timeDiff = HAL_GetTick() - key->time;
        if ((timeDiff > 100) && (timeDiff < 300)) {
            return true;
        }
    }
    return false;
}

// 判断是否为双键同时按下事件
bool IsKeyCombination(KeyInfo* key1, KeyInfo* key2)
{
    if ((GetKeyState(key1) == KEY_PRESSED) && (GetKeyState(key2) == KEY_PRESSED)) {
        return true;
    }
    return false;
}

int main(void)
{
    // 初始化GPIO
    HAL_Init();
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();

    // 初始化按键
    KeyInfo key_up, key_down, key_left, key_right, key_center;
    KeyInit(&key_up, GPIOA, GPIO_PIN_0, false, KEY_UP);
    KeyInit(&key_down, GPIOA, GPIO_PIN_1, false, KEY_DOWN);
    KeyInit(&key_left, GPIOA, GPIO_PIN_2, false, KEY_LEFT);
    KeyInit(&key_right, GPIOA, GPIO_PIN_3, false, KEY_RIGHT);
    KeyInit(&key_center, GPIOB, GPIO_PIN_4, false, KEY_CENTER);

    // 进入状态机
    KeyState state = KEY_RELEASED;
    uint8_t curKey = 0, prevKey = 0;
    uint32_t curTime = 0, prevTime = 0;
    while (1)
    {
        switch (state) {
            case KEY_RELEASED:
                if (IsKeyCombination(&key_up, &key_down)) {
                    state = KEY_UP_DOWN;
                } else if (IsKeyCombination(&key_left, &key_right)) {
                    state = KEY_LEFT_RIGHT;
                } else if (IsLongPress(&key_center)) {
                    state = KEY_CENTER_LONG;
                } else if (IsShortPress(&key_center)) {
                    state = KEY_CENTER_SHORT;
                } else if (IsDoubleClick(&key_center)) {
                    state = KEY_CENTER_DOUBLE;
                } else if (GetKeyState(&key_up) == KEY_PRESSED) {
                    state = KEY_UP;
                } else if (GetKeyState(&key_down) == KEY_PRESSED) {
                    state = KEY_DOWN;
                } else if (GetKeyState(&key_left) == KEY_PRESSED) {
                    state = KEY_LEFT;
                } else if (GetKeyState(&key_right) == KEY_PRESSED) {
                    state = KEY_RIGHT;
                }
                break;

            case KEY_UP:
                curKey = KEY_UP;
                curTime = HAL_GetTick();
                if (IsShortPress(&key_up)) {
                    printf("Key Up Short Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsLongPress(&key_up)) {
                    printf("Key Up Long Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsDoubleClick(&key_up)) {
                    printf("Key Up Double Clicked\n");
                    state = KEY_RELEASED;
                }
                break;

            case KEY_DOWN:
                curKey = KEY_DOWN;
                curTime = HAL_GetTick();
                if (IsShortPress(&key_down)) {
                    printf("Key Down Short Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsLongPress(&key_down)) {
                    printf("Key Down Long Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsDoubleClick(&key_down)) {
                    printf("Key Down Double Clicked\n");
                    state = KEY_RELEASED;
                }
                break;

            case KEY_LEFT:
                curKey = KEY_LEFT;
                curTime = HAL_GetTick();
                if (IsShortPress(&key_left)) {
                    printf("Key Left Short Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsLongPress(&key_left)) {
                    printf("Key Left Long Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsDoubleClick(&key_left)) {
                    printf("Key Left Double Clicked\n");
                    state = KEY_RELEASED;
                }
                break;

            case KEY_RIGHT:
                curKey = KEY_RIGHT;
                curTime = HAL_GetTick();
                if (IsShortPress(&key_right)) {
                    printf("Key Right Short Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsLongPress(&key_right)) {
                    printf("Key Right Long Pressed\n");
                    state = KEY_RELEASED;
                } else if (IsDoubleClick(&key_right)) {
                    printf("Key Right Double Clicked\n");
                    state = KEY_RELEASED;
                }
                break;

            case KEY_CENTER_SHORT:
                printf("Key Center Short Pressed\n");
                state = KEY_RELEASED;
                break;

            case KEY_CENTER_LONG:
                printf("Key Center Long Pressed\n");
                state = KEY_RELEASED;
                break;

            case KEY_CENTER_DOUBLE:
                printf("Key Center Double Clicked\n");
                state = KEY_RELEASED;
                break;

            case KEY_UP_DOWN:
                printf("Key Up and Down Pressed\n");
                state = KEY_RELEASED;
                break;

            case KEY_LEFT_RIGHT:
                printf("Key Left and Right Pressed\n");
                state = KEY_RELEASED;
                break;
        }

        // 判断单按键双击
        if ((curKey != 0) && (curKey == prevKey)) {
            uint32_t timeDiff = curTime - prevTime;
            if ((timeDiff > 100) && (timeDiff < 300)) {
                printf("Key %d Double Clicked\n", curKey);
                curKey = 0;
            }
        }

        // 记录上一个按下的按键和时间
        if (curKey != 0) {
            prevKey = curKey;
            prevTime = curTime;
        }
    }
}

在这个程序中，我们首先定义了按键名称以及按键状态枚举类型。然后我们定义了包含按键信息的结构体`KeyInfo`，包含GPIO端口、引脚、状态、按下时间以及按键名称等信息。接着我们定义了一些函数，包括初始化按键、获取按键状态、判断是否为长按事件、短按事件、双击事件以及双键同时按下事件等。最后我们通过状态机的方式来处理按键事件，包括单按键短按、长按、双击事件以及双键同时按下事件等。同时我们还记录了上一个按下的按键以及时间，以便判断单按键双击事件。