About Sunwaz

Sunwaz · 2025-01-20

Hello, ST expertI'm using the STM32G0B1RCT6 and have enabled the LSECSSON. I've discovered a rather incredible phenomenon. I'm using a 3.3V battery for VBAT. When I disconnect the VDD of the MCU, it abnormally triggers the LSECSS fault. As a result, ...

Sunwaz · 2024-03-27

I have 2 NUCLEO-H503RB board.example 1->>>>Board 1, I3C1 is contorller.Board 2, I3C1 is target , I3C2 is target.Controller boardcast ENTDAA message , target1 can receive , but target2 can not receive. example 2->>>>Board 1 , I3C1 is controller , I3C2...

Sunwaz · 2024-03-11

My I3C target don't send ACK after controller send an arbitration header ,and it will generate a DOVER flag and ERRF flag. ex.Send HAL_I3C_Ctrl_IsDeviceI3C_Ready before controller transmit data.Send HAL_I3C_DIRECTION_READ and so on

Sunwaz · 2024-02-25

I used STM32H563 transmit a message through I3C CCC direct.I create a new CCC command "0xA0".Control send the command to target.But target will enter HAL_I3C_ER_IRQHandlerUesd the general command "0x89".The target can receive this command. The Buffer...

Sunwaz · 2024-01-18

Used nucleo-h563zi board.Below is bootloader jump.Below is app. question:I first download app through CubeIde,this code is run success,and every function is OK.But i reset this board,the code will enter NMI interrupt.

Sunwaz · 2025-01-20

One solution that comes to my mind is to enable the PVD and disable the LSE CSS function within the PVD. Then this problem can be avoided. My log： hello world!PVD set!Set PVD High Level is 2.2V PWR->CR2:0x102Set PVD Low Level is 2.9V PWR->CR2:0x10ASe...

Sunwaz · 2025-01-20

It's not certain whether this is caused by this defect, but it is indeed mentioned in the errata manual.

Sunwaz · 2025-01-20

Is the LSECSS detected after the power supply of the backup domain is switched from VDD to VBAT?

Sunwaz · 2024-04-08

Hello @Imen.D In my application , the target doesn't know the length of the received data.But this is not realistic in the HAL library.What should I do?

Sunwaz · 2024-04-06

This was fixed after changing PB10 and PB13 to PC6 and PC7。I3C2 SDA PB13 change to PC7I3C2 SCL PB10 change to PC6

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