Other Parts Discussed in Thread: TMS320F28335
Hello,
I have an application using an DSP, on a dedicaced electronic card.
It works well when I turn the power on for first time. But when I stop (by power off), and then I turn on it again , the DSP program doesn't work very well (GPIO work, but interruptions don't).
If I wait at least 4 minutes between the stop and the restart, all the DSP program work (GPIO and interruptions). Do you have an idea about that ?
When I run the DSP by JTAG connector and CSS (using "run", "halt"...), the program work fine every time.
I Tried to reset manually the DSP by connecting the /XRS pin to the ground during a very short period : by a wire. The DSP make a good reset and work fine too.
I checked the RESET duration at the output of the reset circuit, it is like announced in the dsp datasheet : 200ms.
What can I do to make it working good every time I restart the card (and DSP for sure) ?
Thank you in advance,
Loïc Baqué
The context :
The DSP : TMS320f28335
My reset circuit : tps767d301
Automotive environment