MSP430FR50431: i2c bootloader

ephraim Ben-Ishai

Intellectual 380 points

Part Number: MSP430FR50431

Tool/software:

hi,

I need documentation and a code example to load software onto the MCU (MSP430FR50431) using the I2C interface.

I am considering the following scenario:

The master MCU sends a predefined, user-defined command via I2C to the slave (MSP430FR50431) to enter bootloading mode.
The slave (MSP430FR50431) issues a TI command (documentation needed) to enter bootloading mode.
From here, I believe there is a protocol between the master MCU and the TI bootloader to transfer the program data (stored in TI-TXT format in one of the master MCU's flash sectors).
After the handshaking and data transfer are completed, the TI device boots into the newly flashed software.

Is there any code or documentation available that implements the master part of the handshaking process?

Thank you,

Ephraim

over 1 year ago

0 Janz Bai over 1 year ago

TI__Genius 10650 points

Hello Ephraim,

1). You can download the MSPWARE Software development kit (SDK) | TI.com and take the BSL example code in the SDK as reference to write your own BSL code.

2), You can download the MSP430 FRAM Devices Bootloader (BSL) User's Guide (Rev. AB) (ti.com) for the BSL docs as the reference.

Best Regards,

Janz Bai

0 ephraim Ben-Ishai over 1 year ago in reply to Janz Bai

Intellectual 380 points

thank you.

0 ephraim Ben-Ishai over 1 year ago in reply to ephraim Ben-Ishai

Intellectual 380 points

hi Janz,

i reviewed the BSL document and the default BSL in the MSP430FR50431 is fine for our needs now.

In order to debug the process, i realize i will need to rely on I2C analyser between the Master/Slave.

As a first step after jumping to the BSL at address 0x1000 is there a way for me to tell using the CCS that i am in the BSL?

thanks,

0 Janz Bai over 1 year ago in reply to ephraim Ben-Ishai

TI__Genius 10650 points

Hello ephraim,

If you just use the default BSL which is written into the ROM of MSP430, there is no method for you to debug it using CCS. And I think you don't need to debug it because there is no error in it.

And if you want to use the BSL written by yourself (customizing), you can refer to this document which is prepared for M0 and you can try to refer to the process in it.

If you have more questions, you can rebuild a E2E post to ask, and our colleague will reply to you in 24hous.

Best Regards,

Janz BaiHow to debug secondary bsl project.pdf

0 ephraim Ben-Ishai over 1 year ago in reply to Janz Bai

Intellectual 380 points

well noted. thank you

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MSP430FR50431: i2c bootloader