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 · 2024-11-26

HiI found your post while I'm also struggling with DUAL mode and DMA. I agree it's not well documented, and code examples are close to useless. I'm fighting, so I'm on the verge on opening another thread here. In the mean time, what I found is that t...

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...

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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: Dual ADC mode single DMA configuration - How?

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