C中，帧计数存在2种情况：1. 与预期帧计数一致 2.与预期帧计数不一致；与预期帧计数不一致分为3种：1.误码 2.丢帧 3.丢帧+误码，帧计数为3B，请帮我进行写代码寻找判断方法-DPDK中文网

以下是一个C语言实现的帧计数判断逻辑代码，根据您的需求分析帧计数状态（正常、误码、丢帧、丢帧+误码）。假设帧计数为3字节（24位）无符号整数：

#include <stdio.h>
#include <stdint.h>

typedef enum {
    FRAME_OK,          // 与预期一致
    FRAME_ERROR,       // 误码
    FRAME_LOST,        // 丢帧
    FRAME_LOST_ERROR   // 丢帧+误码
} FrameStatus;

FrameStatus check_frame_counter(uint32_t expected, uint32_t received) {
    // 情况1：完全匹配
    if (expected == received) {
        return FRAME_OK;
    }
    
    // 计算差异量（考虑24位溢出）
    uint32_t diff = (received - expected) & 0x00FFFFFF;
    
    // 情况2：仅误码（差异量不符合任何合理跳变）
    if (diff != 1 && diff != 0x00FFFFFE && diff != 0x00FFFFFF) { 
        return FRAME_ERROR;
    }
    
    // 情况3/4：检查是否连续丢帧（允许最大255帧的连续丢失）
    uint8_t lost_count = (received - expected - 1) & 0xFF;
    
    if (lost_count <= 255) { 
        return (diff == (lost_count + 1)) ? FRAME_LOST : FRAME_LOST_ERROR;
    }
    
    // 默认视为复杂错误
    return FRAME_LOST_ERROR;
}

int main() {
    uint32_t expected = 0x000123; // 预期值示例
    
    // 测试用例
    uint32_t test_cases[] = {
        0x000123,   // OK
        0x000124,   // OK (正常+1)
        0x000122,   // Error (误码)
        0x000125,   // Lost (丢1帧)
        0x000223,   // Lost+Error (丢255帧但值异常)
        0xFFFFFF    // Overflow case 
    };
    
    for (int i = 0; i < sizeof(test_cases)/sizeof(uint32_t); i++) {
        FrameStatus status = check_frame_counter(expected, test_cases[i]);
        
        printf("Expected: %06X Received: %06X -> ", expected, test_cases[i]);
        
        switch(status) {
            case FRAME_OK: printf("Normal\n"); break;
            case FRAME_ERROR: printf("Bit Error\n"); break;
            case FRAME_LOST: printf("Frame Lost\n"); break;
            case FRAME_LOST_ERROR: printf("Lost+Error\n"); break;
        }
}

关键逻辑说明：