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# openOCD configuration file for generic FT2232H-based USB-jtag interface
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# openOCD configuration file for generic FT2232H-based USB-jtag interface
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# references: https://mcuoneclipse.com/2019/10/20/jtag-debugging-the-esp32-with-ft2232-and-openocd/
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# references: https://mcuoneclipse.com/2019/10/20/jtag-debugging-the-esp32-with-ft2232-and-openocd/
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# ----------------------------------------------
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# ----------------------------------------------
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# Interface configuration
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# Interface/adapter configuration
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# ----------------------------------------------
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# ----------------------------------------------
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# FT2232H pinout:
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# FT2232H pinout:
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# TCK: D0
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# TCK: D0
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# TDI: D1
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# TDI: D1
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# TDO: D2
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# TDO: D2
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# TMS: D3
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# TMS: D3
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# TRST: D4 (low-active, optional - pull input pin high if not used)
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# TRST: D4 (low-active, optional - pull input pin high if not used)
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adapter driver ftdi
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adapter driver ftdi
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ftdi_vid_pid 0x0403 0x6010
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ftdi vid_pid 0x0403 0x6010
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ftdi_channel 0
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ftdi channel 0
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ftdi_layout_init 0x0038 0x003b
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ftdi layout_init 0x0038 0x003b
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adapter speed 1000
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adapter speed 1000
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ftdi_layout_signal nTRST -ndata 0x0010 -noe 0x0040
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ftdi layout_signal nTRST -ndata 0x0010 -noe 0x0040
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transport select jtag
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transport select jtag
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# ----------------------------------------------
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# ----------------------------------------------
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# Target configuration
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# Target configuration
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# ----------------------------------------------
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# ----------------------------------------------
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set _TARGETNAME $_CHIPNAME.cpu
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set _TARGETNAME $_CHIPNAME.cpu
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target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME
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target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME
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# ----------------------------------------------
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# ----------------------------------------------
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# Access memory via program buffer
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# ----------------------------------------------
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riscv set_mem_access progbuf
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# ----------------------------------------------
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# Scratch pad RAM
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# Scratch pad RAM
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# ----------------------------------------------
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# ----------------------------------------------
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# work area ("scratch pad RAM"): beginning of (internal) DMEM, 256 bytes, requires(!) backup
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# work area ("scratch pad RAM"): beginning of (internal) DMEM, 256 bytes, requires(!) backup
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$_TARGETNAME.0 configure -work-area-phys 0x80000000 -work-area-size 256 -work-area-backup 1
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$_TARGETNAME.0 configure -work-area-phys 0x80000000 -work-area-size 256 -work-area-backup 1
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# ----------------------------------------------
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# Expose NEORV32-specific CSRs
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# ----------------------------------------------
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riscv expose_csrs 4032=mxisa
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# ----------------------------------------------
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# Start session
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# ----------------------------------------------
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init
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halt
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echo "Target HALTED."
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echo "Ready for remote connections."
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