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RA · 2019-08-06

Hi, the goal is to generate 4 pulses with a constant on time duration followed by 4 different but variable off times, i.e. a 4 channel pulse frequency modulation with one timer. The on time shall be identical on all channels, but the off times shall ...

RA · 2019-08-08

I totally agree it's better to change the MPU than doing tricky stuff which will have some limitations and take a lot of time to optimize and to get working.The 32F373 would be a good alternative. Beside that I am looking in parallel into the STM32F4...

RA · 2019-08-07

Ok, thanks. The design uses different pins on Ports A,B,C for the 9 (up to 10) outputs, i.e. with 3 timers which triggers 3 DMA channels each 875ns, one could probably do the job. I will need to think about how to separate the outputs which are serve...

RA · 2019-08-07

Yes, one frequency per output and in total 10 of them (one is currently unused, but there are configs which uses 10).There will be a new hardware design, however the STMF303 which is doing the job with 72 MHz is extremely cost efficient for this appl...

RA · 2019-08-07

Hi JW, Clive Two.Zero,thanks for your quick answers!The hardware has in total 9 PFM outputs which are on timer channel output pins, but these pins might also be used as GPIOs. So after reading your answers, I doubt that these signals are generated by...

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Generating 4 pulses with different frequencies using only one STM32-Timer (4 channel PFM)

Re: Generating 4 pulses with different frequencies using only one STM32-Timer (4 channel PFM)

Re: Generating 4 pulses with different frequencies using only one STM32-Timer (4 channel PFM)

Re: Generating 4 pulses with different frequencies using only one STM32-Timer (4 channel PFM)

Re: Generating 4 pulses with different frequencies using only one STM32-Timer (4 channel PFM)