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I think this thread does a good job of explaining the limitations of OTA2 with STM host processors: How to edit makefiles to add OTA2 to STM32F412
As such, we normally only support the 54907/43907 with OTA2.
Thanks for your reply.
In that case, I would like to create manufacturing image and write it to flash using sflash_write(). The image is created using "ota2_manuf_image" in the make target. It follows the memory map defined in 43xxx_Wi-Fi\platforms\CYW943907AEVAL1F\ota2_image_defines.mk as per this link https://community.cypress.com/community/software-forums/wiced-wifi/wiced-wifi-forums/blog/2019/03/28/wiced-download-framework-in-cyw943907aeval1f
Can anyone please provide the ota_image_defines.mk file for 2MB flash?