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CC2640R2F: Firmware upgrade over UART

Part Number: CC2640R2F

Hi, 

This is probably a trivial question ,but I could not find information about it.

My question is regarding the FW upgrade via UART using the built-in rom boot loader. I am already able to enter boot loader mode and send commands to it (ping, read_chip_id, get_status, etc).

The build output are the ".hex" and ".out" files, both of which have are way bigger than the actual flash on the device as they have other stuff like debug information. I was wondering if is necessary to "modify" any of these to the required format. I know that the SBL example uses ".bin" file, but I could not find any way of creating one.

thank you.