About KMew

KMew · 2024-07-19

Hello,I am developing a phone application that interfaces with the BlueNRG-M0A bluetooth chip on our custom board, which utilizes an STM32F303RE MCU. We are sending data gathered by the MCU to the phone application periodically (time is flexible, but...

KMew · 2024-06-03

Hello,We have been using CANbus as our form of communication for a system with multiple nodes. Each node was individually tested with CAN and all of them work without issue. However, when we started system integration testing, we noticed significant ...

KMew · 2024-05-28

Hello, I am trying to make text bold using the TouchGFX Designer. I am using 4.20.0 at the moment.Is this something that is possible? I am trying to look for options, but I am not having any luck.

KMew · 2024-02-02

Hello,I am assisting with the firmware development of a dual-active bridge converter and I am trying to create a phase-shifted PWM signal that will control the switches. Creating the phase shift is proving challenging, but I had an idea that I believ...

KMew · 2023-11-29

Hello,I am utilizing the FDCAN1 CANbus protocol on the STM32H725AGI6 MCU currently. I am trying to determine the execution time for the firmware to execute the lines of code, as the timing can be critical in some applications. So for example, I woul...

KMew · 2024-06-12

Hello Kraal,Ah yes, I do see the article's point about the LC resonant. We are utilizing TVS diodes to prevent voltage spikes, but we will be mindful about using common-mode chokes in the solution.

KMew · 2024-06-12

Hello LCE,Yes, you are right. I needed a solution to deal with the symptom, due to timelines. I have requested that, for the next revision of the DC/AC board, a deeper analysis into what is causing the conductive noise on the CANbus and a method to m...

KMew · 2024-06-12

Hello Kraal,We had to put the 0.25 nF capacitor on all the nodes *except* the DC/AC converter's node. Also, I did not know about the common-choke issue. Can you please provide your source so that I can investigate further?

KMew · 2024-06-11

I have solved the issue. Your suggestion about checking the BOR/POR led me down a good rabbit hole.After doing extensive testing, we confirmed that the DC/AC creates a conductive noise in the CANbus (NOT irradiated noise). For conductive noise, the t...

KMew · 2024-06-10

So a general update of my testing. We still haven't solved the problem, but we have identified something curious. Our supervisory control board (which uses the same CAN hardware as the original post) is powered by the removable battery pack, which i...

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BlueNRG-M0A: Send Data to Phone Application when Phone is Locked

CAN Bus: Massive Noise on the bus when a power converter starts

TouchGFX: Make Font Bold

STM32F303RE: PWMs utilizing Timers with Phase Shift

CANbus: Execution time to send a message

Re: CAN Bus: Massive Noise on the bus when a power converter starts

Re: CAN Bus: Massive Noise on the bus when a power converter starts

Re: CAN Bus: Massive Noise on the bus when a power converter starts

Re: CAN Bus: Massive Noise on the bus when a power converter starts

Re: CAN Bus: Massive Noise on the bus when a power converter starts