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I'm working on SWD test on Cortex M7
When switching to SW mode I try to read DPIDCODE with following command
PRINTF "Checking SW-DP IDCODE"
DAP_DP_SWITCHMODE
DAP_READ_DPACC DPIDCODE 0BA00477 0xF0003000
But turns out it print tube error with value is always 0xFFFFFFFF
I found "DPACC is only supported in JTAG_DP not SW_DP" in manual
Does this mean I can't write or read DPACC on Cortex M7 with SW Mode?
If so, how can I use SWD to do the test.