TMS320F280x frequency issue due to pulse generator block

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Simon Ziegler
Simon Ziegler 2023-11-6
编辑： Sayan 2023-12-4
I am using Simulink to create code for a TI TMS320F280x DSP. The Simulink model includes an SR-Flip-Flop with a pulse generator as clock, which unfortunately limits the overall frequency the hardware is able to compute. The fastest frequency I could measure with the oscilloscope at the GPIOs is 10 kHz, no matter what frequency I use in the model. According to the datasheet the DSP should be able to work in the MHz range. I don't need it to go that fast, but a frequency of at least 30 kHz is necessary for this project.
I was able to pin down the problem to the pulse generator, none of the other blocks I am using slow the process down anywhere near that much. I suppose I need an alternative to the pulse generator, but haven't been able to find one. Any help is much appreciated!
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Sayan
Sayan 2023-12-4
编辑：Sayan 2023-12-4
Hi @Simon Ziegler, if you are using the output of SR flip flop to run the GPIO , the output frequency does not only depend upon the clock frquency but the values at S and R too.If you have cheked this and the problem still persists can you provide the model?

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