2019-06-17 06:23 PM
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.
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2019-06-18 01:35 AM
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)
2019-06-18 01:35 AM
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)
2019-06-18 01:37 AM
You find V2 on M7 and multicire devices.
2019-06-18 06:22 PM
Thanks Uwe, appreciate your clear answer
I guess we will have to look for another option.