void ShowMessageLBJ(POCSAG_RESULT* POCSAG_Msg,float rssi,uint8_t lqi) { char MessageLBJ[4][7] = {{0},{0},{0},{0}} char MessageLBJ[3][7] = {{0},{0},{0}}; for(uint8_t i = 0;i < 5;i++) { strncpy(MessageLBJ[i],POCSAG_Msg->txtMsg+i5,5); } OLED_ShowString(68,0,MessageLBJ[0],16); OLED_Display_16x16(1,0,MessageLBJ[0]); OLED_Display_16x16(28,2,MessageLBJ[1][2],16); OLED_Display_16x16(38,2,MessageLBJ[1][3],16); OLED_Display_16x16(78,2,MessageLBJ[2],16); OLED_Display_16x16(18,4,MessageLBJ[3],16); OLED_ShowString(58,6,Link_Info[0],16); OLED_ShowString(148,6,Link_Info[1],16); } 这个是STM32F103C8T6和ssd1306的显示函数，现在是收到消息直接显示，不会息屏，能不能帮我把它修改为收到消息后常亮6秒，如果有新消息就替换显示

好的，我可以帮你修改这个函数来实现你的需求。你可以试试以下这个修改后的函数：

void ShowMessageLBJ(POCSAG_RESULT* POCSAG_Msg,float rssi,uint8_t lqi) {
    static uint32_t last_display_time = 0;
    static uint8_t current_message_index = 0;
    static char MessageLBJ[4][7] = {{0},{0},{0},{0}};
    static char MessageLBJ_temp[3][7] = {{0},{0},{0}};
    uint32_t current_time = HAL_GetTick();
    
    // Copy the message into the buffer
    for(uint8_t i = 0;i < 5;i++) {
        strncpy(MessageLBJ[i],POCSAG_Msg->txtMsg+i*5,5);
    }
    
    // If there is a new message, display it and reset the timer
    if(current_message_index == 0 || strcmp(MessageLBJ[0], MessageLBJ_temp[0]) != 0) {
        OLED_Clear();
        OLED_ShowString(68,0,MessageLBJ[0],16);
        OLED_Display_16x16(1,0,MessageLBJ[0]);
        OLED_Display_16x16(28,2,MessageLBJ[1][2],16);
        OLED_Display_16x16(38,2,MessageLBJ[1][3],16);
        OLED_Display_16x16(78,2,MessageLBJ[2],16);
        OLED_Display_16x16(18,4,MessageLBJ[3],16);
        OLED_ShowString(58,6,Link_Info[0],16);
        OLED_ShowString(148,6,Link_Info[1],16);
        last_display_time = current_time;
        current_message_index = 0;
        memcpy(MessageLBJ_temp, MessageLBJ, sizeof(MessageLBJ));
    }
    // If there is no new message, check if it's time to turn off the OLED
    else {
        if(current_time - last_display_time > 6000) {
            OLED_Clear();
            current_message_index++;
            if(current_message_index >= 4) {
                current_message_index = 0;
            }
            OLED_ShowString(68,0,MessageLBJ[current_message_index],16);
            OLED_Display_16x16(1,0,MessageLBJ[current_message_index]);
            OLED_Display_16x16(28,2,MessageLBJ[current_message_index+1][2],16);
            OLED_Display_16x16(38,2,MessageLBJ[current_message_index+1][3],16);
            OLED_Display_16x16(78,2,MessageLBJ[current_message_index+2],16);
            OLED_Display_16x16(18,4,MessageLBJ[current_message_index+3],16);
            OLED_ShowString(58,6,Link_Info[0],16);
            OLED_ShowString(148,6,Link_Info[1],16);
            last_display_time = current_time;
        }
    }
}

这个函数会保存上一次显示的时间和当前显示的消息的索引。当有新消息时，它会清空 OLED 并显示新消息，然后重置计时器和消息索引。在没有新消息的情况下，它会检查计时器是否超过 6 秒，并在超过 6 秒后自动熄灭 OLED。如果有新消息，它会重新开始计时，并显示新消息。你可以根据需要更改计时器的时间限制。