Problems with RDP regression

[Istillaga]

Hi

When I was returning from RDP level 1 to 0 the stm32cube programmer program crashed and now every time I try to access the microcontroller several different cases happen:

1- Connect and instantly lose the connection giving the next error: Error: Data read failed
2-Cannot connect to access port 0! If you are trying to connect to a device with TrustZone enabled, try connecting with HotPlug mode. If you are trying to connect to a device that supports debug authentication with a certificate or password, open your device using it.
3- Detects the id 0x00 when it should be 0x482, Error: Unable to get core ID

 

[Imen.D]

Hello @Istillaga,

I advise you to review and follow this FAQ and post:

• How to regress from RDP level 2 to RDP level 0 on ... - STMicroelectronics Community (The process is the same for RDP Level 1)
• Solved: STM32u585- RDP Regression in software from RDP lev... - STMicroelectronics Community

[Jeff Tenney]

Hi @Istillaga did you resolve this issue?  I'm having the same problem - but I was disabling TZ when stm32cube programmer had an error.