This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F2812: Bootloader and MCU losing application program

Part Number: TMS320F2812


Hi team,

On behalf of a customer I have a question relating to a TMS320F2812 that occasionally loses its program.

We use TMS320F2812GHHS in a design where we have a random problem with the chip losing its program,

We use ethernet as a way to upgrade / change software.

So we have a bootloader that does this. This bootloader is also crashed / erased / damaged when the problem is seen,
so we need to open the unit, and via jtag program bootloader again, then it all works perfectly again, for a long time..

Any ideas what can cause this? We have listed a few ideas :

- BOR

- Voltage sequencing

- Voltage spikes

- ESD

- External voltage check and reset needed

What  would you suggest to look at?

Thanks in advance,

Gustaf