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"完成了433多数据同时接收的时候的冲突问题，解决了网络未连接会卡死整个程序的问题“

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This commit is contained in:
zhongxuanzhen
2026-05-08 18:49:05 +08:00
parent 6c56fe8a60
commit 6e2b13dbb3
6 changed files with 71 additions and 43 deletions
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2
Core/Inc/main.h
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@ -73,7 +73,7 @@ extern "C" {
🚀 核心身份标识：烧录不同设备时，请务必修改这个数字！
比如：设备A烧录时改为 0x01，设备B烧录时改为 0x02
========================================================= */
#define MY_DEVICE_ID 0x01
#define MY_DEVICE_ID 0x02
/* USER CODE END EM */
/* Exported functions prototypes ---------------------------------------------*/

2
Core/Inc/multi_uart_router.h
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@ -64,6 +64,8 @@ typedef struct {
uint32_t tx_count;
uint32_t error_count;
bool initialized;
volatile bool csma_backoff_active;
volatile uint32_t csma_backoff_until;
} uart_port_context_t;
void MultiUART_Init(void);

2
Core/Src/main.c
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@ -127,7 +127,7 @@ void RF433_SendPacket(uint8_t type, const uint8_t *payload, uint8_t len)
frame[frame_idx++] = PROTO_START_BYTE; // AA
frame[frame_idx++] = type; // TYPE
frame[frame_idx++] = (uint8_t)(len + 1); // LEN (ID + Payload)
frame[frame_idx++] = (uint8_t)(len + 1 + 1); // LEN (ID + Payload + SUM)
frame[frame_idx++] = MY_DEVICE_ID; // ID
if (len > 0 && payload != NULL) {

27
Core/Src/multi_uart_router.c
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@ -42,6 +42,16 @@
#define DEBUG_LOG(fmt, ...)
#endif
/*==============================================================================
* CSMA/CA 随机退避相关
*============================================================================*/
static uint32_t csma_rand(uint32_t seed)
{
// static uint32_t seed = 12345;
seed = seed * 1103515245 + 12345;
return (seed >> 16) & 0x7FFF;
}
/*==============================================================================
* 全局变量定义
*============================================================================*/
@ -235,16 +245,23 @@ static void tx_kickoff(port_id_t port_id)
__disable_irq();
if (!ring->is_sending && ring->count > 0) {
/* --- 核心修复：针对 RF433 (UART1) 执行包级 LBT 检查 --- */
if (port_id == PORT_433) {
// 如果 AUX 为低电平，说明信道忙（接收中或正在发送前一包），暂缓起步
if (ctx->csma_backoff_active) {
if ((int32_t)(HAL_GetTick() - ctx->csma_backoff_until) < 0) {
__enable_irq();
return;
}
ctx->csma_backoff_active = false;
}
if (HAL_GPIO_ReadPin(AUX_GPIO_Port, AUX_Pin) == GPIO_PIN_RESET) {
ctx->csma_backoff_active = true;
ctx->csma_backoff_until = HAL_GetTick() + (csma_rand(HAL_GetTick()) % 1000) + 1;
__enable_irq();
return;
}
}
/* 取出下一个待发送字节 */
byte = ring->buffer[ring->tail];
ring->tail = (ring->tail + 1) % UART_TX_BUFFER_SIZE;
ring->count--;
@ -297,6 +314,10 @@ void MultiUART_Init(void)
ctx->tx_count = 0;
ctx->error_count = 0;
ctx->initialized = true;
/* 初始化 CSMA/CA 随机退避状态 */
ctx->csma_backoff_active = false;
ctx->csma_backoff_until = 0;
}
DEBUG_LOG("Init OK, %d ports configured", PORT_COUNT);

43
User/wiz_interface/wiz_interface.c
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@ -2,6 +2,7 @@
#include "wiz_platform.h"
#include "wizchip_conf.h"
#include "dhcp.h"
#include "main.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -93,15 +94,18 @@ void wiz_delete_timer(void (*func)(void))
}
/**
* @brief wiz timer event handler
* @brief wiz timer event handler (using HAL_GetTick)
*
* You must add this function to your 1ms timer interrupt
*
*/
void wiz_timer_handler(void)
{
static uint32_t last_tick = 0;
uint32_t current_tick = HAL_GetTick();
wiz_delay_ms_count++;
if (current_tick != last_tick) {
last_tick = current_tick;
struct wiz_timer *temp = wiz_timer_head;
while (temp != NULL)
{
@ -114,36 +118,36 @@ void wiz_timer_handler(void)
temp = temp->next;
}
}
}
/**
* @brief Delay function in milliseconds
* @brief Delay function in milliseconds (using HAL_GetTick)
* @param nms :Delay Time
*/
void wiz_user_delay_ms(uint32_t nms)
{
wiz_delay_ms_count = 0;
while (wiz_delay_ms_count < nms)
{
uint32_t start = HAL_GetTick();
while ((HAL_GetTick() - start) < nms) {
}
}
/**
* @brief Check the WIZCHIP version
* @brief Check the WIZCHIP version (with timeout)
*/
void wizchip_version_check(void)
{
uint8_t error_count = 0;
while (1)
uint32_t start_tick = HAL_GetTick();
while ((HAL_GetTick() - start_tick) < 5000)
{
wiz_user_delay_ms(1000);
wiz_user_delay_ms(100);
if (getVERSIONR() != W5500_VERSION)
{
error_count++;
if (error_count > 5)
{
printf("error, W5500 version is 0x%02x, but read W5500 version value = 0x%02x\r\n", W5500_VERSION, getVERSIONR());
while (1)
;
printf("WARN: W5500 version check failed, SPI may be disconnected\r\n");
break;
}
}
else
@ -165,25 +169,26 @@ void wiz_print_phy_info(void)
}
/**
* @brief Ethernet Link Detection
* @brief Ethernet Link Detection (with timeout)
*/
void wiz_phy_link_check(void)
{
uint8_t phy_link_status;
do
uint32_t start_tick = HAL_GetTick();
while ((HAL_GetTick() - start_tick) < 10000)
{
wiz_user_delay_ms(1000);
wiz_user_delay_ms(500);
ctlwizchip(CW_GET_PHYLINK, (void *)&phy_link_status);
if (phy_link_status == PHY_LINK_ON)
{
printf("PHY link\r\n");
wiz_print_phy_info();
return;
}
else
{
printf("PHY no link\r\n");
}
} while (phy_link_status == PHY_LINK_OFF);
printf("WARN: PHY link timeout, using static config\r\n");
}
/**

14
docs/报文.md
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@ -13,7 +13,7 @@ AA TYPE LEN ID [PAYLOAD] SUM
| | | | | +-- 校验和：从 AA 到 PAYLOAD 结束的所有字节累加和 (取低8位)
| | | | +---------- 载荷数据：具体的业务数据内容
| | | +------------------ 设备 ID：当前发送设备的唯一标识 (MY_DEVICE_ID)
| | +---------------------- 长度：指明后续 [ID + PAYLOAD] 的总字节数
| | +---------------------- 长度：指明后续 [ID + PAYLOAD + SUM] 的总字节数
| +--------------------------- 数据类型：区分数据来源 (10, 55, 48, AA)
+-------------------------------- 起始符：固定为 0xAA
```
@ -26,13 +26,13 @@ AA TYPE LEN ID [PAYLOAD] SUM
当板载 4 路数字输入 (DI) 电平发生变化时，立即发送此包。
```text
AA 10 02 ID XX SUM
AA 10 03 ID XX SUM
-- -- -- -- -- ---
| | | | | |
| | | | | +-- 校验和
| | | | +------ I/O 状态位 (Bit0:DI1, Bit1:DI2, Bit2:DI3, Bit3:DI4)
| | | +---------- 本机设备 ID
| | +-------------- 长度固定为 0x02 (ID + 1字节状态)
| | +-------------- 长度固定为 0x03 (ID + 1字节状态 + SUM)
| +------------------ 类型标识：0x10 (I/O Data)
+---------------------- 固定起始符
```
@ -47,7 +47,7 @@ AA 48 LEN ID [DATA] SUM
| | | | | +-- 校验和
| | | | +--------- RS485 原始数据内容
| | | +--------------- 本机设备 ID
| | +------------------- 长度：(1 + 原始数据长度)
| | +------------------- 长度：(1 + 原始数据长度 + SUM)
| +----------------------- 类型标识：0x48 (RS485 Data)
+--------------------------- 固定起始符
```
@ -62,7 +62,7 @@ AA 55 LEN ID [DATA] SUM
| | | | | +-- 校验和
| | | | +--------- 网络原始数据内容
| | | +--------------- 本机设备 ID
| | +------------------- 长度：(1 + 原始数据长度)
| | +------------------- 长度：(1 + 原始数据长度 + SUM)
| +----------------------- 类型标识：0x55 (Net Data)
+--------------------------- 固定起始符
```
@ -71,14 +71,14 @@ AA 55 LEN ID [DATA] SUM
系统定时上报当前存活状态，包含当前的 I/O 状态及防丢包序列号。
```text
AA AA 04 ID [IO] [SEQ_H] [SEQ_L] SUM
AA AA 05 ID [IO] [SEQ_H] [SEQ_L] SUM
-- -- -- -- ---- ------- ------- ---
| | | | | | | |
| | | | | | | +-- 校验和
| | | | | +-------+-------- 2字节序列号 (0-65535, 循环自增)
| | | | +----------------------- 当前 4 路 I/O 状态位
| | | +---------------------------- 本机设备 ID
| | +-------------------------------- 长度固定为 0x04 (ID + 3字节Payload)
| | +-------------------------------- 长度固定为 0x05 (ID + 3字节Payload + SUM)
| +------------------------------------ 类型标识：0xAA (Heartbeat)
+---------------------------------------- 固定起始符
```