STLINK_SWD_AP_WDATA_ERROR on NUCLEO-H7S3L8 board

[HiFiPhile]

Hi, I'm trying to view RTT output on NUCLEO-H7S3L8 board (STM32H7S3L8) without success, feel free if you need more information.

Direct connection:

./windows_bin_64/strtt.exe -v 4 -ramstart 0x24000000 -ramsize 0x4000
Debug: 1 0 stlink.c:4163 stlink_open(): stlink_open
Debug: 2 1 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3748 serial: not provided
Debug: 3 3 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374b serial: not provided
Debug: 4 4 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3752 serial: not provided
Debug: 5 6 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374d serial: not provided
Debug: 6 7 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374e serial: not provided
Debug: 7 9 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374f serial: not provided
Debug: 8 10 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3753 serial: not provided
Debug: 9 12 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3754 serial: not provided
Info : 10 32 stlink.c:1507 stlink_usb_version(): STLINK V3J15M7 (API v3) VID:PID 0483:3754
Debug: 11 34 stlink.c:1735 stlink_usb_exit_mode(): MODE: 0x02
Info : 12 35 stlink.c:1543 stlink_usb_check_voltage(): Target voltage: 3.271571
Debug: 13 37 stlink.c:1808 stlink_usb_init_mode(): MODE: 0x01
Debug: 14 38 stlink.c:3479 stlink_dump_speed_map(): Supported clock speeds are:
Debug: 15 39 stlink.c:3482 stlink_dump_speed_map(): 24000 kHz
Debug: 16 40 stlink.c:3482 stlink_dump_speed_map(): 8000 kHz
Debug: 17 41 stlink.c:3482 stlink_dump_speed_map(): 3300 kHz
Debug: 18 42 stlink.c:3482 stlink_dump_speed_map(): 1000 kHz
Debug: 19 43 stlink.c:3482 stlink_dump_speed_map(): 200 kHz
Debug: 20 44 stlink.c:3482 stlink_dump_speed_map(): 50 kHz
Debug: 21 45 stlink.c:3482 stlink_dump_speed_map(): 5 kHz
Debug: 22 47 stlink.c:1876 stlink_usb_init_mode(): MODE: 0x02
Debug: 23 48 stlink.c:4356 stlink_usb_init_access_port(): init ap_num = 0
Debug: 24 49 stlink.c:4503 stlink_usb_open_ap(): AP 0 enabled
Debug: 25 50 stlink.c:1180 stlink_usb_error_check(): STLINK_SWD_AP_WDATA_ERROR
Debug: 26 52 stlink.c:4261 stlink_open(): Using TAR autoincrement: 1024
Debug: 27 94 stlink.c:1162 stlink_usb_error_check(): STLINK_SWD_AP_FAULT
Error: 28 95 strttapp.cpp:142 main(): failed to find RTT (-4)

TCP connection:

./windows_bin_64/strtt.exe -v 4 -ramstart 0x24000000 -ramsize 0x4000 -tcp
Debug: 1 0 stlink.c:4163 stlink_open(): stlink_open
Debug: 2 1 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3748 serial: not provided
Debug: 3 2 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374b serial: not provided
Debug: 4 4 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3752 serial: not provided
Debug: 5 5 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374d serial: not provided
Debug: 6 7 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374e serial: not provided
Debug: 7 9 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374f serial: not provided
Debug: 8 10 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3753 serial: not provided
Debug: 9 12 stlink.c:4177 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3754 serial: not provided
Debug: 10 14 stlink.c:3936 stlink_tcp_open(): socket : d8
Info : 11 15 stlink.c:3988 stlink_tcp_open(): connected to stlink-server
Info : 12 17 stlink.c:4005 stlink_tcp_open(): stlink-server API v3, version 2.1.1
Debug: 13 35 stlink.c:4034 stlink_tcp_open(): 1 ST-LINK detected
Debug: 14 36 stlink.c:4129 stlink_tcp_open(): transport: vid: 0x0483 pid: 0x3754 serial: 003F00463033511935393935
Info : 15 39 stlink.c:1507 stlink_usb_version(): STLINK V3J15M7 (API v3) VID:PID 0483:3754
Debug: 16 40 stlink.c:1735 stlink_usb_exit_mode(): MODE: 0x02
Info : 17 41 stlink.c:1543 stlink_usb_check_voltage(): Target voltage: 3.273161
Debug: 18 43 stlink.c:1808 stlink_usb_init_mode(): MODE: 0x02
Debug: 19 44 stlink.c:3479 stlink_dump_speed_map(): Supported clock speeds are:
Debug: 20 45 stlink.c:3482 stlink_dump_speed_map(): 24000 kHz
Debug: 21 46 stlink.c:3482 stlink_dump_speed_map(): 8000 kHz
Debug: 22 47 stlink.c:3482 stlink_dump_speed_map(): 3300 kHz
Debug: 23 48 stlink.c:3482 stlink_dump_speed_map(): 1000 kHz
Debug: 24 49 stlink.c:3482 stlink_dump_speed_map(): 200 kHz
Debug: 25 50 stlink.c:3482 stlink_dump_speed_map(): 50 kHz
Debug: 26 51 stlink.c:3482 stlink_dump_speed_map(): 5 kHz
Debug: 27 53 stlink.c:1876 stlink_usb_init_mode(): MODE: 0x02
Debug: 28 54 stlink.c:4356 stlink_usb_init_access_port(): init ap_num = 0
Debug: 29 55 stlink.c:4503 stlink_usb_open_ap(): AP 0 enabled
Debug: 30 56 stlink.c:1180 stlink_usb_error_check(): STLINK_SWD_AP_WDATA_ERROR
Debug: 31 58 stlink.c:4261 stlink_open(): Using TAR autoincrement: 1024
Debug: 32 104 stlink.c:1162 stlink_usb_error_check(): STLINK_SWD_AP_FAULT
Error: 33 105 strttapp.cpp:142 main(): failed to find RTT (-4)

[phryniszak]

Hi,

I can see that issues start popping out with new STM32 boards, but because I don't have access to these boards chances are low that this will be fixed any time soon.

I have never tried it but I've seen that openocd/pyocd can be used directly for RTT.

[HiFiPhile]

I think I was too early talking about H7RS since it's not even supported by upstream.

However I did a USB capture and found out that the response of memory read command (F2 07 * *) does not corresponding to what actual in the memory ! Maybe it needs some special initialization.

stlink.zip