Hi all, can somebody explain me please ft2232_debug_dump_buffer() log I got, based on following :
Debug: 698 6975 ft2232.c:1884 ft2232_execute_scan(): DRSCAN type:2 Debug: 699 6975 commands.c:189 jtag_build_buffer(): DRSCAN num_fields: 7 Debug: 700 6975 commands.c:211 jtag_build_buffer(): fields[0].out_value[1]: NULL Debug: 701 6975 commands.c:211 jtag_build_buffer(): fields[1].out_value[1]: NULL Debug: 702 6975 commands.c:211 jtag_build_buffer(): fields[2].out_value[1]: NULL Debug: 703 6975 commands.c:211 jtag_build_buffer(): fields[3].out_value[1]: NULL Debug: 704 6975 commands.c:202 jtag_build_buffer(): fields[4].out_value[12]: 0x0020 Debug: 705 6975 commands.c:211 jtag_build_buffer(): fields[5].out_value[1]: NULL Debug: 706 6975 commands.c:211 jtag_build_buffer(): fields[6].out_value[1]: NULL Debug: 707 6975 ft2232.c:480 move_to_state(): start=RUN/IDLE goal=DRSHIFT Debug: 708 6975 ft2232.c:419 clock_tms(): mpsse cmd=4b, tms_bits = 0x00000001, bit_count=3 Debug: 709 6975 ft2232.c:429 clock_tms(): tap_set_state(DRSELECT) Debug: 710 6975 ft2232.c:429 clock_tms(): tap_set_state(DRCAPTURE) Debug: 711 6975 ft2232.c:429 clock_tms(): tap_set_state(DRSHIFT) Debug: 712 6975 ft2232.c:1103 ft2232_add_scan(): finish without read Debug: 713 6975 ft2232.c:419 clock_tms(): mpsse cmd=4b, tms_bits = 0x00000003, bit_count=3 Debug: 714 6975 ft2232.c:429 clock_tms(): tap_set_state(DREXIT1) Debug: 715 6975 ft2232.c:429 clock_tms(): tap_set_state(DRUPDATE) Debug: 716 6975 ft2232.c:429 clock_tms(): tap_set_state(RUN/IDLE) Debug: 717 6975 ft2232.c:1925 ft2232_execute_scan(): DR scan, 18 bits, end in RUN/IDLE Debug: 718 6975 ft2232.c:790 ft2232_send_and_recv(): write buffer (size 14): Debug: 719 6975 ft2232.c:771 ft2232_debug_dump_buffer(): 4b 02 01 19 01 00 00 02 1b 00 00 4b 02 03 How can we dissect value 4b 02 01 19 01 00 00 02 1b 00 00 4b 02 03 ? I guess that 4b 02 01 in the beginning and 4b 02 03 in the end have something to do with "Debug: 708 6975 ft2232.c:419 clock_tms(): mpsse cmd=4b, tms_bits = 0x00000001, bit_count=3" and "Debug: 713 6975 ft2232.c:419 clock_tms(): mpsse cmd=4b, tms_bits = 0x00000003, bit_count=3" recursively, but I do not get what 02 stands for and why are these in beggining and end ? Where can I find my fields[4].out_value[12]: 0x0020 in this buffer dump ? Is this buffer output on the tdo line with LSB first or with MSB first ? I.e. Will my 12 bits 0x0020 be output with LSB first or with MSB first on tdo line (depending on which I have to create this value, so I wonder if I must do swapping locally before inserting in buffer). Many thanks and best regards, Drasko _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
