About SAbis

SAbis · 2022-01-31

SAbis · 2021-07-20

I wondering on which hardware configuration, I have to implement for this purpose.Could I just use the differential pair as in joined picture without VBUS (as the µC is supplier on Board)?I would like to get more details on how to design this interfa...

SAbis · 2021-07-20

What about Vref+??As I am not using any Battery, I have decided to connect Vbat directly to VDD, is that correct?OSC32 will not be used in my app, will it be possible for to leave it open?

SAbis · 2019-04-16

The programming shall be based on the difference interface using Stm32Cube or beginning from scratch (meansing configuring the register my self).I will be delighted to get a feedbakc as soon as possible.ThksRompel

SAbis · 2018-12-10

SAbis · 2022-02-03

Hi,Any Hint: The data send to the transceiver are with 800kHz oder 4MHz and this data is converter to a dfferential signal which is send through the ethernet connector RJ45. This noise is coming from this send path. I thought may be adding a serial ...

SAbis · 2022-01-31

I am using 6 Layers build as follow:Yes Layer 2 is filled completely with GND Polygon

SAbis · 2022-01-31

We are talking abour EN55011 Class radiated.Joined is the result of EMI-Test.

SAbis · 2021-07-20

Thanks for the prompt answer, mislabelling is ok as I wanted to know if it can work in that way.For bootlaoder config, I use resistpor with assembly option for bootloader.Programming over serial is also considered in the design.What do you means by p...

SAbis · 2021-07-20

thanks for the quick feedback. I saw the AN4938 later and used it for the power supply. My µC does not have a dedicated pin to supply the embedded LDO.By reading the datasheet, they also said, the VDDLDO is tied to VDD, when not available on a packag...

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I design my ethernet to RS485 controller board using SPI and does fail EMI pre compliance. The switching frequency on my transceiver is. 800kHz fro WS and 4MHz for SPI configuration which ma de fail the EMI, any suggestion on how to correct it?

I am planing to design a USB interface for programming purposes on STM32H743VIT6 as the bootloader is already integrated on the µC.

Hello, I am designing my Hadrware base on STM32H743VI. Was looking for Power supply application note I could not find any. I would like to know how I would have to connect my VCAP as the LDO is not used or provided. Shall I put it on 100n??

Starting with Stm32f0, where could find a document explaining step by step the programming of this controller?

The µC STM32F051Kx has only one SPI and of course only one CS (chip select). It is possiblie to use another and configure it as CS?

Re: I design my ethernet to RS485 controller board using SPI and does fail EMI pre compliance. The switching frequency on my transceiver is. 800kHz fro WS and 4MHz for SPI configuration which ma de fail the EMI, any suggestion on how to correct it?

Re: I design my ethernet to RS485 controller board using SPI and does fail EMI pre compliance. The switching frequency on my transceiver is. 800kHz fro WS and 4MHz for SPI configuration which ma de fail the EMI, any suggestion on how to correct it?

Re: I design my ethernet to RS485 controller board using SPI and does fail EMI pre compliance. The switching frequency on my transceiver is. 800kHz fro WS and 4MHz for SPI configuration which ma de fail the EMI, any suggestion on how to correct it?

Re: I am planing to design a USB interface for programming purposes on STM32H743VIT6 as the bootloader is already integrated on the µC.

Re: Hello, I am designing my Hadrware base on STM32H743VI. Was looking for Power supply application note I could not find any. I would like to know how I would have to connect my VCAP as the LDO is not used or provided. Shall I put it on 100n??