SWCU193 April 2023 CC2340R2 , CC2340R5 , CC2340R5-Q1
Below is an overview of the main ROM functionality. For more details on ROM functions available, see the DriverLib documentation in the CC23xx SDK. For ROM size information, please see the device specific datasheet.
The ROM supports a serial bootloader with a SPI or UART interface. For applications that require in-production or in-field programmability, the royalty-free bootloader acts as an application loader and support firmware updates over a serial bootloader interface. The bootloader either executes automatically if no valid image has been written to the flash, or the bootloader can be started through a configurable GPIO. The bootloader cannot be called from application code. For more information on the bootloader see Chapter 150.