Note: Before upgrading WiFi Module-USR-C322 firmware, user must confirm the current firmware version of module firstly(User can confirm it by entering Web Server->Sys status or sending AT+VER after entering AT command mode). If the current firmware version is under 2.1.10, user must upgrade transition version(USR-C322-V1.x-V2.x.bin) firstly, then user can upgrade the latest firmware.
Before upgrading firmware, user must close Windows firewall, anti-virus program and any other software which may disturb upgrade process.
When user starts upgrading firmware, user should power the WiFi Module USR-C322 and connect PC to C322 in same LAN(Connect PC to C322 directly if C322 works in AP mode or connect PC to same router as C322 if C322 works in STA mode). During upgrade process, user also needs to keep powering the module and WiFi connection with C322.
2.1.Upgrade transition version
Step 1: Generate firmware file. All firmware files that user wants to upgrade should in following file path: htdocs\sys. Click ‘复制脚本USR-C322-V1.x-V2.x.bat’ will copy and rename ‘USR-C322-V1.x-V2.x.bin’ into ‘mcuimg.bin’(‘mcuimg.bin’ is system default firmware upgrade file name).
Step 2: Run software for upgrading C322 firmware C32 Serials Update Tools.exe.
After opening software, click ‘Search Module’ to search module and choose the C322 that needs to be upgraded as follow:
Note: To be searched by PC, C322 must in same LAN as PC and C322 should has: search port: 48899; search keyword: www.usr.cn.
Step 3: Choose firmware file and click ‘Upgrade’ to upgrade C322 firmware as follow:
Return ‘+OK’ means upgrading firmware successfully. And user should reset module to default settings and restart module after upgrading successfully.
2.2.Upgrade latest version
Take upgrading V2.7 firmware as example.
Step 1: Generate firmware file. All firmware files that user wants to upgrade should in following file path: htdocs\sys. Click ‘复制脚本USR-C322-V2.7.bat’ will copy and rename ‘USR-C322-V2.7.bin’ into ‘mcuimg.bin’(‘mcuimg.bin’ is system default firmware upgrade file name).
Step 2: Open upgrade software, search and choose module, choose firmware file and upgrade module.(Refer to Step 2, Step 3 in 2.1.Upgrade transition version.) And after software returning ‘+OK’ which means upgrading firmware successfully, user should reset module to default settings and restart module.