Precision about OTA feature

phil31 · 2015-10-16T08:31:50+09:00

Dear, my module communicate over UART (handshake enable) with my CPU, as expected. he answer right to all AT commands. i try to update the firmware by OTA : 2 methods toggle twice FUNCTION pin when the module is running send AT+FOTA command booth methods work perfectly with the EVB. i see on the terminal : [code]Set OTA Mode [OTA Upgrade Handler] Start OTA >>>>>>>>>>>>>>>>[/code] ==> then i can navigate to the module and upgrade my EVB. after the upgrade, the module right reboot with the new firmware. when i test it on my board, both methods do same : after running the FOTA command, or toggle twice the FUNCTION pin, i receive the “Set OTA Mode” answer message from the module : then NOTHING else (viewed with logic analyzer … NOTHING else after reply of the echo command) now, i manually reset the board … (so the WIZFI module too) … and i see the end part of the OTA message !!! : [code] [OTA Upgrade Handler] Start OTA >>>>>>>>>>>>>>>>[/code] Please some can explain the mechanism behind this feature, WIZFI250 view …? when the module receive the command, does he save it on flash location, then reboot and execute the command ? is there anything that can block the module to start the OTA Upgrade handler (after receive the AT command, or after toggle FUNCTION pin ) ?? ( for sure already carefully check all UART wires, and even try it with handshake disable) Please anybody have some experience about that ?.. tips ?.. thanks, best regards Phil

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