LP-EM-CC1314R10: Firmware upgrade using UART

Hi Marie H,

We had tested the firmware upgrade with serial UART with your references and its working fine.

We assume the Serial bootloader source code that you have shared is communicating with the bootloader of the cc1314r10 board  (transmitting the application image over UART / SPI to the board ). 
Which means already the bootloader is running in the board. So where we can find the current running bootloader source code?. And how to compile and flash the bootloader of a CC1314R10 board.

Our Aim is from our application, we need to update the new application code
1. Receive new application image and store it in the external/internal flash.
2. Jump to bootloader.
3. From bootloader ,verify and run the new Application image.

For that we might need to update the bootloader source code as well.

Additionally we want to ask you that , Is it possible to do the firmware upgrade through wireless in Sub - 1 GHz frequency (may be using two lp-em-cc1314r10 launchpads). Is there any example available?. .

Kindly help us to achieve our requirements.

Regards,
Manivel M

Hi Manivel,

The serial bootloader described in the app note is stored in ROM. Unfortunately we don't provide the source code.

If you need a flash bootloader you can use the MCUBoot implementation as a starting point. 

https://dev.ti.com/tirex/explore/node?node=A__AJUmuKtNwqzAzqYhC6ptwA__com.ti.SIMPLELINK_CC13XX_CC26XX_SDK__BSEc4rl__LATEST&placeholder=true

Cheers,

Marie H