URL
https://opencores.org/ocsvn/adv_debug_sys/adv_debug_sys/trunk
Subversion Repositories adv_debug_sys
Compare Revisions
- This comparison shows the changes necessary to convert path
/adv_debug_sys/trunk/Hardware/jtag
- from Rev 8 to Rev 14
- ↔ Reverse comparison
Rev 8 → Rev 14
/tap/rtl/verilog/tap_top.v
43,9 → 43,12
// CVS Revision History |
// |
// $Log: tap_top.v,v $ |
// Revision 1.4 2009/05/17 20:54:38 Nathan |
// Changed email address to opencores.org |
// Revision 1.5 2009/06/16 02:53:58 Nathan |
// Changed some signal names for better consistency between different hardware modules. Removed stale CVS log/comments. |
// |
// Revision 1.4 2009/05/17 20:54:38 Nathan |
// Changed email address to opencores.org |
// |
// Revision 1.3 2008/06/18 18:45:07 Nathan |
// Improved reset slightly. Cleanup. |
// |
59,60 → 62,6
// path. Unified the registers at the output of each data register |
// to a single shared FF. |
// |
// Revision 1.6 2004/01/27 10:00:33 mohor |
// Unused registers removed. |
// |
// Revision 1.5 2004/01/18 09:27:39 simons |
// Blocking non blocking assignmenst fixed. |
// |
// Revision 1.4 2004/01/17 17:37:44 mohor |
// capture_dr_o added to ports. |
// |
// Revision 1.3 2004/01/14 13:50:56 mohor |
// 5 consecutive TMS=1 causes reset of TAP. |
// |
// Revision 1.2 2004/01/08 10:29:44 mohor |
// Control signals for tdo_pad_o mux are changed to negedge. |
// |
// Revision 1.1 2003/12/23 14:52:14 mohor |
// Directory structure changed. New version of TAP. |
// |
// Revision 1.10 2003/10/23 18:08:01 mohor |
// MBIST chain connection fixed. |
// |
// Revision 1.9 2003/10/23 16:17:02 mohor |
// CRC logic changed. |
// |
// Revision 1.8 2003/10/21 09:48:31 simons |
// Mbist support added. |
// |
// Revision 1.7 2002/11/06 14:30:10 mohor |
// Trst active high. Inverted on higher layer. |
// |
// Revision 1.6 2002/04/22 12:55:56 mohor |
// tdo_padoen_o changed to tdo_padoe_o. Signal is active high. |
// |
// Revision 1.5 2002/03/26 14:23:38 mohor |
// Signal tdo_padoe_o changed back to tdo_padoen_o. |
// |
// Revision 1.4 2002/03/25 13:16:15 mohor |
// tdo_padoen_o changed to tdo_padoe_o. Signal was always active high, just |
// not named correctly. |
// |
// Revision 1.3 2002/03/12 14:30:05 mohor |
// Few outputs for boundary scan chain added. |
// |
// Revision 1.2 2002/03/12 10:31:53 mohor |
// tap_top and dbg_top modules are put into two separate modules. tap_top |
// contains only tap state machine and related logic. dbg_top contains all |
// logic necessery for debugging. |
// |
// Revision 1.1 2002/03/08 15:28:16 mohor |
// Structure changed. Hooks for jtag chain added. |
// |
// |
// |
// |
|
`include "tap_defines.v" |
|
141,12 → 90,12
debug_select_o, |
|
// TDO signal that is connected to TDI of sub-modules. |
tdo_o, |
tdi_o, |
|
// TDI signals from sub-modules |
debug_tdi_i, // from debug module |
bs_chain_tdi_i, // from Boundary Scan Chain |
mbist_tdi_i // from Mbist Chain |
debug_tdo_i, // from debug module |
bs_chain_tdo_i, // from Boundary Scan Chain |
mbist_tdo_i // from Mbist Chain |
); |
|
|
173,12 → 122,12
output debug_select_o; |
|
// TDO signal that is connected to TDI of sub-modules. |
output tdo_o; |
output tdi_o; |
|
// TDI signals from sub-modules |
input debug_tdi_i; // from debug module |
input bs_chain_tdi_i; // from Boundary Scan Chain |
input mbist_tdi_i; // from Mbist Chain |
input debug_tdo_i; // from debug module |
input bs_chain_tdo_i; // from Boundary Scan Chain |
input mbist_tdo_i; // from Mbist Chain |
|
// Wires which depend on the state of the TAP FSM |
reg test_logic_reset; |
210,7 → 159,7
reg tdo_pad_o; |
reg tdo_padoe_o; |
|
assign tdo_o = tdi_pad_i; |
assign tdi_o = tdi_pad_i; |
|
assign test_logic_reset_o = test_logic_reset; |
assign run_test_idle_o = run_test_idle; |
537,8 → 486,8
reg tdo_mux_out; // really just a wire |
|
always @ (shift_ir or instruction_tdo or latched_jtag_ir or idcode_tdo or |
debug_tdi_i or bs_chain_tdi_i or mbist_tdi_i or bypassed_tdo or |
bs_chain_tdi_i) |
debug_tdo_i or bs_chain_tdo_i or mbist_tdo_i or bypassed_tdo or |
bs_chain_tdo_i) |
begin |
if(shift_ir) |
tdo_mux_out = instruction_tdo; |
546,10 → 495,10
begin |
case(latched_jtag_ir) // synthesis parallel_case |
`IDCODE: tdo_mux_out = idcode_tdo; // Reading ID code |
`DEBUG: tdo_mux_out = debug_tdi_i; // Debug |
`SAMPLE_PRELOAD: tdo_mux_out = bs_chain_tdi_i; // Sampling/Preloading |
`EXTEST: tdo_mux_out = bs_chain_tdi_i; // External test |
`MBIST: tdo_mux_out = mbist_tdi_i; // Mbist test |
`DEBUG: tdo_mux_out = debug_tdo_i; // Debug |
`SAMPLE_PRELOAD: tdo_mux_out = bs_chain_tdo_i; // Sampling/Preloading |
`EXTEST: tdo_mux_out = bs_chain_tdo_i; // External test |
`MBIST: tdo_mux_out = mbist_tdo_i; // Mbist test |
default: tdo_mux_out = bypassed_tdo; // BYPASS instruction |
endcase |
end |
/tap/doc/src/jtag.odt
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/tap/doc/jtag.pdf
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