系统SystemLWIP & espconnmbedTLSATWi-Fi 文件编号Document No.ESP-00-2-007-03文件名称Document Name产品/工艺变更通知Product/Process Change Notice(PCN)文件版本Document Version1.1保存期限Retention Period3 年3 yearswww.espressif.com Page1/7ESP8266 系列模组_AT 升级AT Bin Version Upgrade For ESP8266 ModulesPCN 编号PCN No.PCN-03-2018112601提出日期Issue Date of PCN2018-11-26产品名称Product NameESP-WROOM-02ESP-WROOM-02DESP-WROOM-02UESP-WROOM-02DCESP-WROOM-02UCESP-WROOM-S2变更日期Proposed Date of Change2018-11-26封装类型/尺寸Package Type/Size模组/Module首次出货日期Proposed Date of First Shipment2019-01-26客户批准/Customer Consent：需要批准/Approval Required通知，无需批准/Notification, Approval Not Required变更等级/Classification of Change:主要变更/Major轻微变更/Minor变更原因/Reason for Change:1. ESP8266 NON-OS SDK 升级，同时 AT 应用固件同步升级；ESP8266 NON-OS SDK is updated, and ATapplication firmware is updated accordingly;2. 新增部分功能，并针对上一版本 Bug 进行修复。Added new features, and fixed the bugs in the previousversion. www.espressif.com Page2/7变更描述/Description of Change:系统 System1. 添加确保安全擦除 flash 的 API；Added APIs to ensure erasing the flash safely;bool spi_flash_erase_protect_enable(void)bool spi_flash_erase_protect_disable(void)2. 添加 -DUSE_OPTIMIZE_PRINTF 至 third_party/Makefile；Added -DUSE_OPTIMIZE_PRINTF tothird_party/Makefile;3. 从 newlib 2.0.0 中更新 libc.a，从 gcc 4.8.5 中更新 libgcc.a；Updated libc.a from newlib 2.0.0, and libgcc.afrom gcc 4.8.5;4.移除 ROM Code 中已有功能；Stripped the functions which are already in ROM Code;5.添加 readme 文档至 lib 文件夹，介绍如何移除原有库；A readme file that introduces how to strip theoriginal libraries is added to the lib folder;6. 更新脚本以生成有关 SSL 的 bin 文件；Updated scripts to generate SSL-related binaries;7. 添加 libm.a至.irom0.text 中；Added libm.a to .irom0.text;8. 使用 -ffunction-sectons -fdata-sections 编译库；Compiled some libraries with -ffunction-sectons-fdata-sections;9. 修改 ld 以添加 .text.*至.irom0.text；Modified ld to add .text.* to .irom0.text;10. 从 libmain 中移除 time() 函数；Removed time() function from libmain;11. 修复 deep-sleep 模式下睡眠参数为 0 或设置长时间睡眠的问题；Fixed the sleep 0 or long-time sleep issuein deep-sleep mode;12. 修复驱动编译问题；Fixed the driver compiling issue;13. 修复 ets_delay_us 声明问题；Fixed ets_delay_us declaration;14. 修复 os_calloc 声明问题；Fixed os_calloc declaration;15. 修复系统相对时间不准确的问题；Fixed the issue of the system relative time not being accurate;16. 修复 FOTA 升级时会擦除 rf cal sector 的问题。Fixed the issue of the rf cal sector being erased duringFOTA upgrade.LWIP & espconn1. [LWIP] 添加 LWIP 源代码至 third_party 文件夹；Added LWIP source codes to the third_party folder;2. [LWIP] 重新定义 lwip 中的 err_t；Redefined err_t in lwip;3. [LWIP] 修复 RST+ACK 序列码错误；Fixed the sequence number error of RST+ACK;4. [LWIP] 修复 LWIP_NETIF_TX_SINGLE_PBUF 使能后发送 TCP 数据包时使用两个以上 pbuf 的问题；Fixed the issue of two or more pbuf being used when sending one TCP packetwith LWIP_NETIF_TX_SINGLE_PBUF enabled;5. [LWIP] 修复单个数据包中 TCP 数据长度大于 1460 的问题；Fixed the issue of the length of TCP data inone packet being more than 1460; www.espressif.com Page3/76. [LWIP] 发送 DHCP ACK 后更新 MACADDR 和 IP；Updated MACADDR & IP after sending DHCP ACK;7. [espconn] 修复 espconn_sendto 重复发送 UDP 数据包的问题；Fixed the issue of a duplicate UDP packetbeing be sent by espconn_sendto;8. [espconn] 允许应用层主动读取 TCP 数据；Allowed the application to actively read TCP data;9. [espconn] 通信结束后手动获取接收到的数据；Manual fetch of the received data after the communicationends;10. [espconn] 修复使用 mbedTLS 库时 SSL/TLS 连接 set/clear opt 错误问题。Fixed the SSL/TLSconnection set/clear opt error when using the mbedTLS library.mbedTLS1. 添加 mbedTLS 源代码至 third_party 文件夹；Added mbedTLS source codes to the third_party folder;2. 修复 ESP8266 作为 SSL/TLS 客户端运行时可能出现的 mbedTLS 内存泄漏问题；Fixed the issue ofmbedTLS having a memory leak in some cases when ESP8266 is running as an SSL/TLS client;3. 修复有时出现 sent callback 未被调用的问题；Fixed the issue of the “sent callback” function not being calledin some cases;4. 修复在 esp_cert_private_key.bin 中如果 private key 在 cert 之前，则会加载失败问题；Fixed the load certfailure that occurs if the private key is in front of the cert in the esp_cert_private_key.bin;5. 修复 disconnect callback 未被调用的问题；Fixed the issue of the “disconnect callback” function beingnever called;6. 加快 mbedTLS 握手进程；Speeded up the mbedTLS handshake process;7. 修复 ESP8266 作为 SSL/TLS 服务器时出现的 already freed 和 exception 异常。Fixed the “alreadyfreed” and “exception” errors that occur when ESP8266 acts as an SSL/TLS server.AT1. 更新 AT 版本号为 1.6.2.0；Updated AT version to 1.6.2.0;2. 添加使能报告信息的新指令 AT+SYSMSG；Added command AT+SYSMSG to enable some reportinformation;3. 添加新指令 AT+CWCOUNTRY；Added command AT+CWCOUNTRY;AT+CWCOUNTRY=,"country_code",,4. 添加新指令 AT+CIPSERVERMAXCONN；Added command AT+CIPSERVERMAXCONN;AT+CIPSERVERMAXCONN=5. 更新指令 AT+CWLAP；Updated command AT+CWLAP;AT+CWLAP =[,,,,,]6. 更新指令 AT+CWLAPOPT；Updated command AT+CWLAPOPT;Mask 0x7F修改为Mask 0x7FF；Mask changed from 0x7F to 0x7FF;7. 更新 espconn_recv，优化 TCP 服务器；Optimized the TCP server by using new espconn_recv;8. 修复升级后，因使用错误 irom string 而导致打印信息出错的问题；Fixed the message-printing error caused www.espressif.com Page4/7by loading the wrong irom string after the upgrade.;9. 修复波特率无法设置为 1200 的问题；Fixed the issue of not being able to set the baud rate at 1200;10. 修复连接 ID 错误时没有报错的问题；Fixed the issue of not returning an error when the link ID is wrong;11. 修复默认使用 DNS 自动模式的问题；Fixed the issue of the DNS auto mode being used by default;12. 修复客户端连接数量达到最大承受值时出现的错误连接 ID 的问题；Fixed the wrong link ID issue occurringwhen the client connection number reaches the maximum limit;13. 修复最大连接数量超过 5 时出现报错的问题；Fixed the issue of an error being reported when the maximumconnection number is more than 5;14. 修复使用域名创建 UDP 通信时，提示信息出错的问题；Fixed the incorrect message that appears whencreating a UDP transmission by a domain name;15. 修复 GSLP 长时间休眠的问题；Fixed the long-time sleep issue under GSLP command;16. 修复如果服务器端有连接建立的同时调用 AT+CIPSTART 会 busy 的问题；Fixed the “busy” error occurringwhen AT+CIPSTART is called while ESP8266 establishes connections both as a client and a server.17. 修复 SSID 为 32 字节时查询出错的问题。Fixed wrong SSID query appearing when the length of SSID is32 bytes.Wi-Fi1. 更新 libphy.a 版本号为 1136；Updated libphy.a to version 1136;2. 添加设置 WPA2 企业级加密 API；Added APIs to set WPA2 Enterprise identity;int wifi_station_set_enterprise_identity(u8* identity, int len)void wifi_station_clear_enterprise_identity(void)3. 新增被动扫描支持；Added support for passive scan;4. 新增有关扫描阈值和空闲时间的支持；Added support for scan threshold and dwell time;5. 添加设置国家码的 API；Added APIs to set country code;6. 增加支持在扫描 AP 时，获取更多的信息；Added support for getting more information while scanning forAPs;7. 修复 WiFi KRACK 漏洞；Fixed the WiFi KRACK vulnerability;8. 修复调用 system_timer_reinit 后 softAP 出现错误行为的问题；Fixed softAP wrong behaviors occurringafter calling system_timer_reinit;9. 更新 esp_init_data_default.bin 版本号为 v08；Updated esp_init_data_default.bin to v08;调整默认目标功耗（由 esp_init_data_default.bin 的 34th byte 到 39th byte 表示），降低各级目标功耗，优化频谱 Mask 和 EVM。Adjusted the default target power (from the 34th byte to the 39th byte inesp_init_data_default.bin), lowered the target power at each level, and optimized the frequency spectrumMask and the EVM.10. 增加 Station 模式保持连接的功能；Added the feature of staying connected to AP in Station mode;11. 添加 softAP 模式分配 station IP 的事件；Added a station IP distribution event in softAP mode;12. 修复 light-sleep 模式中有时出现的高电流和无法睡眠的问题；Fixed the light-sleep issues related to high www.espressif.com Page5/7current and failing to sleep in some cases;13. 修复 softAP 模式下 eapol 的重传机制；Fixed the eapol resend mechanism in softAP mode;14. 修复某特殊路由器 WPS 验证失败的问题；Fixed the WPS validation failure issue for some special routers;15. 修正有关 wifi_set_country 和 wifi_get_country 的 API 描述。Revised the API description ofwifi_set_country and wifi_get_country.变更影响/Impact of Change:1. 兼容旧版本 AT 固件，提升 AT 应用新功能及针对之前版本稳定性进行提升；Improved the ATapplication-related features and the product’s stability, while maintaining compatibility with the old version ofthe AT firmware;2. 在 AT 固件中支持最新 SDK 支持的通用功能。The updated AT firmware supports all the general functionssupported by the newest SDK.变更识别方式/ Change Identification Method:1. 变更前 AT 版本：V1.5.0.0；AT version before the change: V1.5.0.0;2. 变更后 AT 版本：V1.6.2.0。AT version after the change: V1.6.2.0.变更前后产品处理/:How to Deal with Products:FIFO相关报告/Report(s) Attached:Related ECN No.:E2018112601Reliability Report or Plan:Function Test Report:RoHS/HF Test Report:Other Reports (Pls 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If you wish to stay updated on our products andservices, please subscribe here.客户响应要求Customer Response Requirements客户须按照如下要求给予 Espressif PCN 反馈：Customers are required to respond to Espressif, according to the following guidelines, and confirm receipt of thePCN:主要变更/For Major Changes：a) 客户须在乐鑫发出 PCN 后的 30 天内告知已收到 PCN。Customers should confirm receipt of the PCN within 30 calendar days from the date Espressif sends it tothem.b) 如客户未在接收到 PCN 后的 30 天内告知已收到，则视为客户接受变更。If customers do not confirm receipt of the PCN within 30 calendar days, they will be regarded as havingaccepted the proposed changes.c) 客户告知确认收到 PCN 后，如未在 90 天内反馈其他要求，则视为客户接受变更。After the customers confirm receipt of the PCN, the lack of any additional responses on their part within 90calendar days constitutes acceptance of the proposed changes.轻微变更/For Minor Changes：a) 如客户未在接收到 PCN 后的 7 天内告知已收到，则视为客户接受变更。If customers do not confirm receipt of the PCN within 7 calendar days, they will be regarded as havingaccepted the proposed changes.请反馈至 pcn@espressif.com。Please send feedback to pcn@espressif.com.客户批准/确认信息Customer Approval/Acknowledgement and Remarks客户公司全称：Customer’s Company Name:PCN 评审结果/PCN Review Result：□批准/Approval□不批准/Disapproval□需要分析/Further Analysis Required客户意见/Comment: www.espressif.com Page7/7公司代表人姓名Representative’s Name:公司代表人职责Representative’s Job Title:公司代表人签名Representative’s Signature:日期Date: