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rfish.749
Associate II
since ‎2019-11-03
‎2023-06-14

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  • 8 Posts
  • 1 Solutions
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User Activity

STM32G473 IO Cells getting hammered due to motor induced ground bounce?

2023-03-16
This PWA is running multiple BLDC motors. we have some serious noise issues on the ground plane, but want to understand what we are seeing. this is the output of PD2, configured as an push-pull output (driving an LED w/ 20k resistor to ground. when...

STM32G4 Timer Input Filter. Can I read the filtered input pin directly or is it only routed to the timer block?

2023-03-16
we use the timer capture for Hall inputs. we were able to program the XOR input using the filter and can geneate an interrupt, but I also want to read the individual inputs using the filter.feature. When I read the corresponding IDR it seems it is ...

Need a 3rd advanced timer in the STM32 family

2021-12-02
i would like to run 3 BLDC motors out of the STM32.  Are only TIM1 and TIM8 the only advanced timers available? is there any part that has 3? We use the comp output 3-phase PWMs with success driving 1 or 2 motors, but now we need to drive 3 and don't...

Interfacing "unmuxed" SRAM/Perpherials to STM32H742ZIT which only has muxed Addr/Data pins

2019-12-18
Are there control signals available that would allow me to "unmux" the address/data lines using external latch? I need to use the LQPF144 package that doesn't provide the separate Address and Data pins - they are muxed.
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