CC1312R: Flashing FW via BeagleBones UART

Igi

Part Number: CC1312R
Other Parts Discussed in Thread: SYSCONFIG, CC2538

Hello,

we have CC1312 which uses UART to communicate with BeagleBone. There are used DIO15 and 12 for the uart on the CC1312 (so not the default). Can I use the serial ROM bootloader even I have different UART? So on the CC1312 I have to only enable bootloader and choose another pin for going into bootloader via sysConfig, dont I? Is that all what I have to set on the CC1312 side? Do you have a Linux program, nice would be in C language which can simply flash the FW into the CC1312? I found only

https://github.com/JelmerT/cc2538-bsl

but it is in Python and the main problem is that I do not know where to choose which pins (in my case BeagleBone) will be used to reset and going to bootloader mode.

Thank you in advance, Igi.

over 2 years ago

0 ZC over 2 years ago

TI__Mastermind 18835 points

Hi Igi,

1: From the following threads:

If you need to use the bootloader, one of the UART ports must be configured to specific DIOs. This is specified in Table 10-2, Section 10.2.2 of SWCU185 (CC13x2, CC26x2 SimpleLink Wireless MCU Technical Reference Manual): https://www.ti.com/lit/swcu185

You can open another UART port and map it to any available I/Os.

2: Please look at the Linux serial bootloader example application documentation (part of the TI 15.4-Stack Gateway Linux SDK User's Guide): https://dev.ti.com/tirex/explore/content/ti154stack_linux_x64_4_20_00_05/docs/ti154stack/html/ti154stack-linux/linux-example-applications.html#linux-serial-bootloader-example-application

You may also find the following App Note useful (if only as a reference), SWRA466 (CC2538/CC26x0/CC26x2 Serial Bootloader Interface): https://www.ti.com/lit/swra466

Regards,

Zack

0 Igi over 2 years ago in reply to ZC

Prodigy 200 points

Thank you, everything clear except the Linux serial bootloader example.

There is no code on the linked page, only some description.. I downloaded the SDK. But there is a strange suffix .run I do not know how to extract. but it would be better to get only example in the c language of the bootloader part, because there are (probably) a lot of other code. Could you please provide very simple example how to send a FW to the board? Thank you in advance.

+1 ZC over 2 years ago in reply to Igi

TI__Mastermind 18835 points

.run files can be opened using a Linux machine. From the User's Guide, there is information on the Development Environment here (particularly the Required Software section): https://dev.ti.com/tirex/explore/content/ti154stack_linux_x64_4_20_00_05/docs/ti154stack/html/ti154stack-linux/linux-development-environment.html#development-environment

I will double-check if there are any other examples we have, but the Linux Serial Bootloader Example Application performs the function that you are asking for: providing the ability to upgrade the firmware on the CC13xx/CC26x2 device through the ROM serial bootloader using UART.

The link to the documentation for the example in my previous post describes the two main modules in the example (cc13xxdnld and sblUart).

Regards,

Zack

0 ZC over 2 years ago in reply to Igi

TI__Mastermind 18835 points

I have confirmed with colleagues, this is the recommended example for this application.

Regards,
Zack

0 Igi over 2 years ago in reply to ZC

Prodigy 200 points

I downloaded the appropriate files from the SDK. I cannot see there a control of PINS to reset and going to BL. I guess the workflow should be:

1) using my program to control BBB GPIO to reset and going to BL, is it OK to switch the pin for going to BL before reset the device and then hold the level until the end of the flashing process?

2) running your program to flash.

3) toggle the "BL going PIN" and reset the CC1312

am I right?

Sub-1 GHz

Sub-1 GHz forum

CC1312R: Flashing FW via BeagleBones UART