wangfq
421334ec48
栈溢出根因确认后 .bss 瘦身四刀: - net_config.h: ETH_MAX_PACKET_SIZE 1520→768 (MSS=700最大帧758B, 省3.76KB) - iot_mqtt_srv.c: payload[1400]→800 (loop_data最大~604B, 省600B) - iot_mqtt_srv.h: IOT_MQTT_SEND_BUF_LEN 1024→800 (_iot_send_buf/resp/buf 同步, 省224B) - net_srv.c: MAX_MQTTBUF_LEN 1024→800 (512仍不够勿回改, 省224B) ⚠ ETH 768 为 MSS=700 最小安全值; 若现场有大UDP包截断改回1024。 待办: .map 确认 BLE 栈占用; RECE_BUF_LEN/ARP 表可再省; 局部大数组转static。
179 lines
8.5 KiB
C
179 lines
8.5 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : net_config.h
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* Author : WCH
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* Version : V1.30
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* Date : 2022/06/02
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* Description : This file contains the configurations of
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* Ethernet protocol stack library
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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#ifndef __NET_CONFIG_H__
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#define __NET_CONFIG_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************************************************************
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* Feature toggles
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*
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* 模式不再通过编译宏选择, 改为运行时 g_sub_code_enable.iot_enable:
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* iot_enable=0 → SSC 模式 (UDP+TCP client + TCP JSON server)
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* iot_enable=1 → IoT MQTT 模式 (MQTT client)
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*
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* Socket 数量按最坏情况 (SSC 模式) 静态分配:
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* 1 UDP + 2 TCP + 1 TCP_LISTEN = 4
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*/
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#define WCHNET_NUM_UDP 1 /* SSC 模式需要 UDP */
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#define WCHNET_NUM_TCP 1 //2 /* JSON(1) + SSC client(1) max */
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#define WCHNET_NUM_IPRAW 0 /* Number of IPRAW connections */
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#define WCHNET_NUM_TCP_LISTEN 1 /* Number of TCP listening (required internally) */
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/* The number of sockets, the maximum is 31 */
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#define WCHNET_MAX_SOCKET_NUM (WCHNET_NUM_IPRAW+WCHNET_NUM_UDP+WCHNET_NUM_TCP+WCHNET_NUM_TCP_LISTEN)
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#define WCHNET_TCP_MSS 700 //576 //1024 //1460 /* Size of TCP MSS*/
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#define WCHNET_NUM_POOL_BUF (WCHNET_NUM_TCP*2+2) /* The number of POOL BUFs, the number of receive queues */
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/*********************************************************************
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* MAC queue configuration
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*/
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#define ETH_TXBUFNB 1 /* The number of descriptors sent by the MAC */
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#define ETH_RXBUFNB 4 /* Number of MAC received descriptors */
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/* 2026-08-17 RAM 瘦身: ETH_MAX_PACKET_SIZE 1520 → 768.
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最大 TCP 帧 (MSS=700) = 700+20+20+14+4 = 758B ≤ 768 ✓;
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停车场景 (TCP JSON/MQTT/SSC UDP 小包) 无 >728B UDP 数据。
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省 .bss: (1520-768)×(RX 4 + TX 1) = 3.76KB (栈空间 +3.76KB)。
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若现场出现大 UDP 包截断, 改回 1024 (省 2.48KB)。 */
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#define ETH_MAX_PACKET_SIZE 768
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#ifndef ETH_MAX_PACKET_SIZE
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#define ETH_RX_BUF_SZE 1520 /* MAC receive buffer length, an integer multiple of 4 */
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#define ETH_TX_BUF_SZE 1520 /* MAC send buffer length, an integer multiple of 4 */
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#else
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#define ETH_RX_BUF_SZE ETH_MAX_PACKET_SIZE
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#define ETH_TX_BUF_SZE ETH_MAX_PACKET_SIZE
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#endif
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/*********************************************************************
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* Functional configuration
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*/
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#define WCHNET_PING_ENABLE 1 /* PING is enabled, PING is enabled by default */
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#define TCP_RETRY_COUNT 20 /* The number of TCP retransmissions, the default value is 20 */
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#define TCP_RETRY_PERIOD 10 /* TCP retransmission period, the default value is 10, the unit is 50ms */
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#define SOCKET_SEND_RETRY 0 /* Send failed retry configuration, 1: enable, 0: disable */
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#define FINE_DHCP_PERIOD 8 /* Fine DHCP period, the default value is 8, the unit is 250ms */
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#define CFG0_TCP_SEND_COPY 1 /* TCP send buffer copy, 1: copy, 0: not copy */
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#define CFG0_TCP_RECV_COPY 1 /* TCP receive replication optimization, internal debugging use */
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#define CFG0_TCP_OLD_DELETE 0 /* Delete oldest TCP connection, 1: enable, 0: disable */
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#define CFG0_IP_REASS_PBUFS 0 /* Number of reassembled IP PBUFs */
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#define CFG0_TCP_DEALY_ACK_DISABLE 1 /* 1: disable TCP delay ACK 0: enable TCP delay ACK */
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/*********************************************************************
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* Memory related configuration
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*/
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/* If you want to achieve a higher transmission speed,
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* try to increase RECE_BUF_LEN to (WCHNET_TCP_MSS*4)
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* and increase WCHNET_NUM_TCP_SEG to (WCHNET_NUM_TCP*4)*/
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#define RECE_BUF_LEN (WCHNET_TCP_MSS*2) /* socket receive buffer size */
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#define WCHNET_NUM_PBUF WCHNET_NUM_POOL_BUF /* Number of PBUF structures */
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#define WCHNET_NUM_TCP_SEG (WCHNET_NUM_TCP*2) /* The number of TCP segments used to send */
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#define WCHNET_MEM_HEAP_SIZE (((WCHNET_TCP_MSS+0x10+54+8)*WCHNET_NUM_TCP_SEG)+ETH_TX_BUF_SZE+64+2*0x18) /* memory heap size */
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#define WCHNET_NUM_ARP_TABLE 50 /* Number of ARP lists */
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#define WCHNET_MEM_ALIGNMENT 4 /* 4 byte alignment */
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#if CFG0_IP_REASS_PBUFS
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#define WCHNET_NUM_IP_REASSDATA 2 /* Number of reassembled IP structures */
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/*1: When using the fragmentation function,
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* ensure that the size of WCHNET_SIZE_POOL_BUF is large enough to store a single fragmented packet*/
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#define WCHNET_SIZE_POOL_BUF (((1500 + 14 + 4) + 3) & ~3) /* Buffer size for receiving a single packet */
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/*2: When creating a socket that can receive fragmented packets,
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* ensure that "RecvBufLen" member of the "struct _SOCK_INF" structure
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* (the parameter initialized when calling WCHNET_SocketCreat) is sufficient
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* to receive a complete fragmented packet */
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#else
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#define WCHNET_NUM_IP_REASSDATA 0 /* Number of reassembled IP structures */
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#define WCHNET_SIZE_POOL_BUF (((WCHNET_TCP_MSS + 40 + 14 + 4) + 3) & ~3) /* Buffer size for receiving a single packet */
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#endif
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/* Check receive buffer */
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#if(WCHNET_NUM_POOL_BUF * WCHNET_SIZE_POOL_BUF < ETH_RX_BUF_SZE)
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#error "WCHNET_NUM_POOL_BUF or WCHNET_TCP_MSS Error"
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#error "Please Increase WCHNET_NUM_POOL_BUF or WCHNET_TCP_MSS to make sure the receive buffer is sufficient"
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#endif
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/* Check the configuration of the SOCKET quantity */
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#if( WCHNET_NUM_TCP_LISTEN && !WCHNET_NUM_TCP )
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#error "WCHNET_NUM_TCP Error,Please Configure WCHNET_NUM_TCP >= 1"
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#endif
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/* Check byte alignment must be a multiple of 4 */
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#if((WCHNET_MEM_ALIGNMENT % 4) || (WCHNET_MEM_ALIGNMENT == 0))
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#error "WCHNET_MEM_ALIGNMENT Error,Please Configure WCHNET_MEM_ALIGNMENT = 4 * N, N >=1"
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#endif
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/* TCP maximum segment length */
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#if((WCHNET_TCP_MSS > 1460) || (WCHNET_TCP_MSS < 60))
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#error "WCHNET_TCP_MSS Error,Please Configure WCHNET_TCP_MSS >= 60 && WCHNET_TCP_MSS <= 1460"
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#endif
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/* Number of ARP cache tables */
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#if((WCHNET_NUM_ARP_TABLE > 0X7F) || (WCHNET_NUM_ARP_TABLE < 1))
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#error "WCHNET_NUM_ARP_TABLE Error,Please Configure WCHNET_NUM_ARP_TABLE >= 1 && WCHNET_NUM_ARP_TABLE <= 0X7F"
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#endif
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/* Check POOL BUF configuration */
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#if(WCHNET_NUM_POOL_BUF < 1)
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#error "WCHNET_NUM_POOL_BUF Error,Please Configure WCHNET_NUM_POOL_BUF >= 1"
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#endif
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/* Check PBUF structure configuration */
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#if(WCHNET_NUM_PBUF < 1)
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#error "WCHNET_NUM_PBUF Error,Please Configure WCHNET_NUM_PBUF >= 1"
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#endif
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/* Check IP Assignment Configuration */
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#if(CFG0_IP_REASS_PBUFS && ((WCHNET_NUM_IP_REASSDATA > 10) || (WCHNET_NUM_IP_REASSDATA < 1)))
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#error "WCHNET_NUM_IP_REASSDATA Error,Please Configure WCHNET_NUM_IP_REASSDATA < 10 && WCHNET_NUM_IP_REASSDATA >= 1 "
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#endif
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/* Check the number of reassembled IP PBUFs */
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#if(CFG0_IP_REASS_PBUFS > WCHNET_NUM_POOL_BUF)
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#error "WCHNET_NUM_POOL_BUF Error,Please Configure CFG0_IP_REASS_PBUFS < WCHNET_NUM_POOL_BUF"
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#endif
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/* Check Timer period, in Ms. */
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#if(WCHNETTIMERPERIOD > 50)
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#error "WCHNETTIMERPERIOD Error,Please Configure WCHNETTIMERPERIOD < 50"
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#endif
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/* Configuration value 0 */
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#define WCHNET_MISC_CONFIG0 (((CFG0_TCP_SEND_COPY) << 0) |\
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((CFG0_TCP_RECV_COPY) << 1) |\
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((CFG0_TCP_OLD_DELETE) << 2) |\
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((CFG0_IP_REASS_PBUFS) << 3) |\
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((CFG0_TCP_DEALY_ACK_DISABLE) << 8))
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/* Configuration value 1 */
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#define WCHNET_MISC_CONFIG1 (((WCHNET_MAX_SOCKET_NUM)<<0)|\
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((WCHNET_PING_ENABLE) << 13) |\
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((TCP_RETRY_COUNT) << 14) |\
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((TCP_RETRY_PERIOD) << 19) |\
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((SOCKET_SEND_RETRY) << 25) |\
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((FINE_DHCP_PERIOD) << 27))
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#ifdef __cplusplus
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}
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#endif
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#endif
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