About KHarb.1

KHarb.1 · 2024-09-17

I'm using CubeIDE and I have PG10 configured as MCO output and I see nothing. Usually when I see this, there is a HAL enable command I missed, but I don't think there is in this case. I've tried multiple clock sources and the pin stays at voltage hi...

KHarb.1 · 2024-07-31

I have an STM32G4 board that is to function as a virtual COM port via USB. This is my first attempt at implementing USB. Within CubeIDE, I enabled the USB feature and configured a middleware device for the virtual COM port. I’m not seeing the PC rea...

KHarb.1 · 2024-07-11

I set the X1 buffer size to 18 and preloaded it with 18 values. HAL_FMAC_FilterPreload_DMA returned 0 indicating success.Some cycles after that, I should see X1FULL go high when the DMA transfers complete. I'm not seeing this. Instead, X1FULL stays l...

KHarb.1 · 2024-07-07

I have an application requiring updating the integral and derivative values for a set of PID controllers. Each arriving error value must be added to the integral value and subtracted with the last error value. I want to streamline this with DMA. I c...

KHarb.1 · 2024-07-07

I’m using CubeIDE + HAL and I want to have TIM20 CH1 execute a capture compare interrupt and I want CH2 to execute a DMA transfer. I can use each separately, but together they fail. Either the timer resets stop functioning, or the counter stops count...

KHarb.1 · 2024-09-17

PG10 is also the NRST pin. I was able to trace this behavior to the NRST_MODE bits in FLASH_OPTR. I changed them from 0x3 to 0x2 and the MCO output started working along with normal GPIO which I also found to be failing.

KHarb.1 · 2024-09-17

Ahh...once again, datasheet and reference manual are different. So, yes...AF0 is correct. The RCC register configuration all seemed correct.If I'm not seeing MCO output, what else could I look at?

KHarb.1 · 2024-08-05

I never used any of the interrupt stuff and only used it for speeding up weighted sum computations in a one-shot mode rather than ongoing FIR computations.

KHarb.1 · 2024-08-01

I have a custom board with a USBC port attached to the appropriate pins. Since its a custom board, I'm looking for ways to diagnose potential electrical failures, since there's a possibility I've done something wrong in routing, pull ups, pull downs....

KHarb.1 · 2024-08-01

I've been using Cube and not MX. I didn't even know MX had an example library. Thanks!

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STM32G4 does not output clock signals on MCO pin \ Where is the alternate function mapping table?

What diagnostics can be run on PC and STM32 to debug failing USB virtual COM port?

FMAC DMA preload returns 0 but X1FULL is never set and YFULL behaves strangely

Is the CORDIC coprocessor microcoded and can it be modified?

Can a timer be configured with interrupts and DMA active?

Re: STM32G4 does not output clock signals on MCO pin \ Where is the alternate function mapping table?

Re: STM32G4 does not output clock signals on MCO pin \ Where is the alternate function mapping table?

Re: FMAC DMA preload returns 0 but X1FULL is never set and YFULL behaves strangely

Re: What diagnostics can be run on PC and STM32 to debug failing USB virtual COM port?

Re: What diagnostics can be run on PC and STM32 to debug failing USB virtual COM port?