About Marcelo Barros

Marcelo Barros · 2024-02-03

I followed the secure image tutorials as can be seen in AN4992/AN5054 or in videos made available by ST. The process takes place without errors, as can be seen in the images below (start address is 0x08000000).Smart card is valid and working:However...

Marcelo Barros · 2021-12-23

HelloAnalyzing the source code of some BLE LLD examples for nucleo stm32wb55 I could see that broadcast is used in Proximity example and unicast in Chat example, for instance. However, I could not understand how to choose between unicast or broadcas...

Marcelo Barros · 2020-10-22

We have a ST25 project running and able to read tags from 8cm distance. However, we would like to reduce this distance. Our idea is to reconfigure only "Receiver configuration register 3". Is this the best way ? Should I change "Receiver configuratio...

Marcelo Barros · 2018-06-30

Posted on June 30, 2018 at 14:35Hello,I have configured TIM1 and TIM2 as combined channels (encoder feature), set pins to count on falling edge using TI1 encoder mode (please, see images below), added pull ups to the lines. However, I can see the ti...

Marcelo Barros · 2016-04-17

Posted on April 17, 2016 at 16:36Hello, We are using a discovery kit based on STM32F030R8T6 uC and facing a strange condition. When using both serials (UART1 and UART2), both in interrupt mode, there is a overrun error happening from UART1 and we ca...

Marcelo Barros · 2024-02-11

Hi Remy, It is true, when using p2pserver, this value is available inside SVCCTL_App_Notification(). However, when user is notified by calling Custom_APP_Notification(&HandleNotification) only the connection handle and event upcode are used. Is there...

Marcelo Barros · 2024-02-06

Hi Jocelyn,One more question: my project do not use trust zone (it was created without TZ).Even not using TZ I need to recreate the project with TZ active or it is enough just enable TZ in option bytes ?Thanks again !Marcelo

Marcelo Barros · 2024-02-06

Hi Jocelyn,I will try with TZ and RDP 0.5 and provide feedback later.About requesting a specific license to my chip, do you how to proceed ? ThanksMarcelo

Marcelo Barros · 2020-10-23

Thanks a lot, Ulysses. Our device is the ST25R3911B. We will test the alternatives before sticking to one solution.

Marcelo Barros · 2020-01-13

Hi MarkusIt seems we have some problem during download although browser reports a successful download:md5sum en.st-stm32cubeide_1.2.0_5034_20200108_0926_amd64.deb_bundle.sh.zip 6383c8b4e6f41e88b1c7c15697feafe9 en.st-stm32cubeide_1.2.0_5034_20200108...

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Error when writing secure firmware image to STM32U535

Broadcast in BLE LLD

What is the recommended strategy to reduce range / gain ?

STM32L433RC and quadrature encoders - twice the expected pulses?

How is the proper way of recovering from a UART overrun condition in STM32F030R8T6 ?

Re: How can I get BLE client address from BLE server?

Re: Error when writing secure firmware image to STM32U535

Re: Error when writing secure firmware image to STM32U535

Re: What is the recommended strategy to reduce range / gain ?

Re: STM32CubeIDE version 1.2.0 is now released