Does the STM32H750 support multi-drop SWD?

[GGonz]

Does the new STM32H750 MCU Family include the ARM CoreSight Serial Wire protocol version 2 in ADIv5.1 released in Sept 2009 which permits support for the multi-drop SWD extensions? The objective being the use of a single SWD debug header to enable debug of multiple MCUs whose SWD are interconnected.

[Tesla DeLorean]

Some of the H7 parts support multiple "Access Ports" via the ST-LINK V3 connection

[Uwe Bonnes]

STM32F7 and STM32H7 supports SWD version 2. So the MCU Idcode is already visible in the in the access port and so it should supports multi drop. Probably L5 will also be protocol version 2. Let's see.

[Khouloud GARSI]

Hi @GGonz​ ,

Indeed, the STM32H750 supports Serial Wire Debug protocol version 2, which provides a multi-drop capability.

Khouloud.