MSP432P401R UART Firmware update

Avery Simon1

I have been tasked with created a remote update for some of our products that already contain a MSP432P401R and use the Ti-Rtos. I would like to be able to split the flash memory into two sections one with running firmware and one section with the new firmware. Then I would like to set the chip to startup to the new firmware upon a reboot. I am somewhat familiar with linker files, so I believe I can split the memory, but I am uncertain about how to run the new firmware. How do I setup the interrupt vectors and startup to use the new image.

Also this forum thread creation form would not accept the MSP432P401R as the device!!!

over 2 years ago

0 Jace H over 2 years ago

TI__Guru 56685 points

Hello,

There is no example code to do this, but please check out the following E2e post that may help you get started in the right direction.

https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/612924/msp432p401m-msp432-dual-image-application

0 Avery Simon1 over 2 years ago in reply to Jace H

Prodigy 50 points

This isn't quite what I want, but is on the right track. I would like to use the linker to break the memory into 3 pieces, 1 for the active image, 1 for the new image, and 1 for the updater/copier. I would then have the active image: download the new image over the uart to the new image memory, check it with a CRC or hash, then jump to code in the updater section that then copies everything from the new over the active image and reboots. I did something like what I want with another MCU in the past. I was hoping there was a better way or this is something someone else has tackled for this MCU. I suspect at this point I may have to just use trial an error.

0 Avery Simon1 over 2 years ago in reply to Avery Simon1

Prodigy 50 points

I just found out that we will be migrating parts. I will probably still try and do this with whatever MCU we move to, but this project is on hold for now.

Arm-based microcontrollers

Arm-based microcontrollers forum

MSP432P401R UART Firmware update