About PatriceL

PatriceL · 2024-11-15

Hi happy people,Until we receive the prototype from our electronic designer, I work on the NUCLEO 144 U575IZ dev board, from IAR workbench, and via ST-LINK facilities. In this condition I can execute a minimalist shell (I send command from PC, the bo...

PatriceL · 2024-08-07

Hello happy taxpayers[EDIT #1]I forgot to say that what is really working is that is, from non secure app, I try to write in secure SRAM, then I end in the secure fault handler of my secure app. So, in this direction it's really clear the expected be...

PatriceL · 2024-07-26

Hi, I'm working on ADC1, on a STM32U5 (on a Nucleo board). In reference manual (RM0456) § 33.4.13 "Channel-wise programmable sampling time" we can read how to compute the total conversion time Tconv. The example is given for SMP = 5 ADC clock, at 55...

PatriceL · 2024-07-22

Hi,[EDIT 3] there is no need to configure GPIOC pin 0,1 and 2 as secure to be used by ADC1 since all GPIO are secure by default when TZEN = 1. cf. RM0456 § 3.5.6 "activating TrustZone security". This is why you do not find an of this in generated cod...

PatriceL · 2024-06-12

Hi community people, As an introduction, please note I'm completely new to the STM32 world, and back in embedded world after a long break in the application level. I now jump in a new project that will be based on a STM32U5, and I start digging in do...

PatriceL · 2024-11-21

The problem is fixed: Unfortunately I was using the wrong FTDI cable. I used one that needs RS-232 levels where obviously it's TTL that goes out of the MCU. Once I used a good TTL/USB cable, everything is working fine. Thank you for supporting me ;)

PatriceL · 2024-11-17

Hi, thank you for this I bet my issue will be obvious when my hardware guy will be back, it's certainly a question of signal level or something like that, I certainly did not wire correctly my ftdi cable.

PatriceL · 2024-08-13

yep, I have same reading as you. But, in the same time, as I spotted in my post, you can read this in STM32U5 reference manual: Any secure transaction trying to access nonsecure block in internal block-based SRAM or watermarked memory is considered a...

PatriceL · 2024-08-12

Hi @Roger SHIVELY , @fed For your information I have a similar issue, with SRAM : I can write to NS SRAM from S world where I expect it to fail. Here the post : My original post I did not try to read back what I wrote, this could be interesting to do...

PatriceL · 2024-07-26

Hi @STOne-32 and thank you for the confirmation. I've already read this pdf you mention, but did not pay enough attention to the table on page 16.So, this conversion time is fixed in number of clock, what is confusing is the sentences "for 14 bit" f...

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User Activity

NUCLEO U575ZI Q: move from ST-LINK to J-LINK: failed to transmit data on USART1

GTZC & illegal secure access failed to demonstrate: I can always write to non secure from secure

STM32U5 ADC1 : does conversion time depend on sampling time configuration ?

STM32U5 / Nucleo : ADC1 & DMA linked list and TrustZone: failed to sample, "USEF" DMA error

STM32U5 Nucleo where to find demo source code

Re: NUCLEO U575ZI Q: move from ST-LINK to J-LINK: failed to transmit data on USART1

Re: NUCLEO U575ZI Q: move from ST-LINK to J-LINK: failed to transmit data on USART1

Re: STM32U575 TrustZone access non secure area from secure mode

Re: STM32U575 TrustZone access non secure area from secure mode

Re: STM32U5 ADC1 : does conversion time depend on sampling time configuration ?