About BGheb.1

BGheb.1 · 2021-11-23

I'm currently trying to program the MCU using UART by entering bootloader using BOOT0 and nRST. However, whenever I send an nRST pulse PA12 gets pulled up and I'm not able to connect to the MCU. If I power cycle the board while BOOT0 is pulled high I...

BGheb.1 · 2021-11-16

I'm trying to program a STM32G491CEU6 by using BOOT0 and NRST but I'm not able to connect unless I power cycle the MCU while BOOT0 is pulled HIGH. What I'm trying to achieve is:Provide PowerSet BOOT0 pin HIGHPulse the nRST pin LOWProgram MCUWhat is c...

BGheb.1 · 2021-09-10

I'm using PB14, TIM15_CH1 for my PWM signal. Since it's TT_a I/O structure 3.6V tolerant.

BGheb.1 · 2021-11-19

Hi TDK I finally managed to figure out the issue that was preventing my MCU from connecting.In my circuit, PA12 was floating when I was trying to connect and for some reason, the MCU did not like that. I was able to enter the bootloader after adding ...

BGheb.1 · 2021-11-16

Hi TDK, thank you for the response. The MCU is reset by another MCU so that pulse comes after the MCU is fully on and the feature is there so it can be programmed while the system is powered. I also have the option of holding the nRST pin LOW.My SWD ...

BGheb.1 · 2021-09-11

But if find it really odd since I am also generating PWM from another pin and it has a slower rise time (~6ns) and little to no overshoot. I'm using the same code on both pins and probing with the same scope and same setup.

BGheb.1 · 2021-09-11

Thank you Tesla, I'll go ahead and try adjusting the slew rate and see if it helps with my issue.

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STM32G491CEU6 PA12 Getting Pulled Up during Bootloader

STM32CubeProgramer not connecting to STM32G491CEU6

STM32G491CEU6 PWM output has a very fast rise time (~2ns) and 400mV Overshoot when not loaded. How come there is so much overshoot? Is this harmful for the pin?

Re: STM32CubeProgramer not connecting to STM32G491CEU6

Re: STM32CubeProgramer not connecting to STM32G491CEU6

Re: STM32G491CEU6 PWM output has a very fast rise time (~2ns) and 400mV Overshoot when not loaded. How come there is so much overshoot? Is this harmful for the pin?

Re: STM32G491CEU6 PWM output has a very fast rise time (~2ns) and 400mV Overshoot when not loaded. How come there is so much overshoot? Is this harmful for the pin?