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Do STM32G0 Series have SWD protocol version 2

CH1
Associate II

I am looking at using a few STM32G070 MCUs on a board and would prefer a single programming bus. As they don't have JTAG I am stuck with SWD. I know SWD protocol version 2 allows you to connect SWD in a bus with something called multi-drop. The impression I get is that prior STM32s dont have this but I am hoping it is something that has been added to this new series.

1 ACCEPTED SOLUTION

Accepted Solutions
Uwe Bonnes
Principal II

No: Here some output from pyocd:

STM32G071:

==========

0000786:INFO:dap:DP IDR = 0x0bc11477 (v1 MINDP rev0)

STM32WB55:

==========

0000790:INFO:dap:DP IDR = 0x6ba02477 (v2 rev6)

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3 REPLIES 3
Uwe Bonnes
Principal II

No: Here some output from pyocd:

STM32G071:

==========

0000786:INFO:dap:DP IDR = 0x0bc11477 (v1 MINDP rev0)

STM32WB55:

==========

0000790:INFO:dap:DP IDR = 0x6ba02477 (v2 rev6)

Uwe Bonnes
Principal II

You find V2 on M7 and multicire devices.

CH1
Associate II

Thanks Uwe, appreciate your clear answer

I guess we will have to look for another option.