opocd Error: Unsupported DTM version: 9

[shirlynan]

I 'm trying debugging riscv with jtag. but always get the following error in openocd. Has anyone idea how to make it work.... Open On-Chip Debugger 0.10.0+dev-00818-g7c82a7b (2019-10-27-12:11) Licensed under GNU GPL v2 For bug reports, read http://openocd.org/doc/doxygen/bugs.html riscv.cpu Info : Listening on port 6666 for tcl connections Info : Listening on port 4444 for telnet connections Info : clock speed 10000 kHz Info : JTAG tap: riscv.cpu tap/device found: 0x43651093 (mfg: 0x049 (Xilinx), part: 0x3651, ver: 0x4) Error: Unsupported DTM version: 9 Info : Listening on port 3333 for gdb connections

[jrrk2]

You should be using openocd commit dc312f57e626958ce2e3b8edfe5445695b37d58b from https://github.com/lowRISC/riscv-openocd.git, which reports version 0.10.0+dev-00165-gdc312f57

This patch is necessary to support the JTAG chain length in Xilinx FPGAs and other discrepancies as described in the lowrisc.org documentation.

[shirlynan]

You should be using openocd commit dc312f57e626958ce2e3b8edfe5445695b37d58b from https://github.com/lowRISC/riscv-openocd.git, which reports version 0.10.0+dev-00165-gdc312f57

This patch is necessary to support the JTAG chain length in Xilinx FPGAs and other discrepancies as described in the lowrisc.org documentation.

Thanks for your reply. I tried to build this openocd version, but failed with errors:

src/target/riscv/riscv-011.c:1961:32: error: passing argument 2 of ‘jtag_add_ir_scan’ from incompatible pointer type [-Werror=incompatible-pointer-types] jtag_add_ir_scan(target->tap, &select_dbus, TAP_IDLE);

I guess this should be caused by version mismatch of pre-built riscv tools and openocd? So i have to change my prebuilt riscv tools? but to which version?

[jrrk2]

Newer versions of gcc are stricter, try adding -Wno-error to your flags

[shirlynan]

Newer versions of gcc are stricter, try adding -Wno-error to your flags

unfortunately it doesn't work...

[jrrk2]

You need to give more detail.

[shirlynan]

You need to give more detail.

I added -Wno-error flag to make command but the make errors are still there:

src/target/riscv/riscv-011.c: In function ‘deassert_reset’: src/target/riscv/riscv-011.c:1950:32: error: passing argument 2 of ‘jtag_add_ir_scan’ from incompatible pointer type [-Werror=incompatible-pointer-types] jtag_add_ir_scan(target->tap, &select_dbus, TAP_IDLE); ^ In file included from src/target/riscv/riscv-011.c:18:0: ./src/jtag/jtag.h:345:6: note: expected ‘struct scan_field ’ but argument is of type ‘struct scan_field ()(struct target )’ void jtag_add_ir_scan(struct jtag_tap *tap, ^ src/target/riscv/riscv-011.c: In function ‘read_memory’: src/target/riscv/riscv-011.c:1961:32: error: passing argument 2 of ‘jtag_add_ir_scan’ from incompatible pointer type [-Werror=incompatible-pointer-types] jtag_add_ir_scan(target->tap, &select_dbus, TAP_IDLE);

src/target/riscv/riscv-011.c: In function ‘write_memory’: src/target/riscv/riscv-011.c:2128:32: error: passing argument 2 of ‘jtag_add_ir_scan’ from incompatible pointer type [-Werror=incompatible-pointer-types] jtag_add_ir_scan(target->tap, &select_dbus, TAP_IDLE);

Environment Info: git branch xilinx-boom, KC705, xilinx usb-jtag cables.