François
c77d86efd0
New modules/svf/ plays the single-device SVF subset over the bscan_* primitives: SIR/SDR with masked TDO compare, RUNTEST (TCK/SEC), STATE (RESET/IDLE), ENDIR/ENDDR (IDLE only), HIR/HDR/TIR/TDR (length 0), TRST, FREQUENCY. Exposed as `svf_play <file>`. It warms up the FTDI link first — the MPSSE's first data read after open returns stale FIFO content, normally hidden because jtag_scan runs before anything. Also adds the bscan_tap_reset prototype. Validated on the live IGLOO2 M2GL010T: a hand-written IDCODE-check SVF passes (masked compare) and a deliberately wrong one is caught at the mismatching bit. A generic program dispatch off the prog tag, multi-device chains and non-IDLE end states are still TODO. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
#ifndef _SVF_H
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#define _SVF_H
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#include "jtag_core/jtag_core.h"
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/*
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* SVF player (single-device chain).
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*
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* Plays a standard subset of Serial Vector Format over the currently
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* open probe, using the bscan_* TAP primitives. SVF is what Libero,
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* Diamond/Radiant, Vivado, … export with the vendor programming
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* algorithm already baked in, so one player programs many targets with
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* no per-vendor code.
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*
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* Supported: SIR / SDR with TDI/TDO/MASK/SMASK and a masked TDO compare;
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* RUNTEST (TCK/SCK counts and SEC delays); STATE (RESET / IDLE);
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* ENDIR / ENDDR (IDLE only); HIR/HDR/TIR/TDR (length 0 only); TRST;
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* FREQUENCY. SMASK is parsed but not applied.
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*
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* Not supported (single-device tool): non-zero header/trailer scans
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* (multi-device chains) and non-IDLE stable end states — both rejected
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* with a clear error.
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*
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* log() receives progress / error lines (is_error != 0 on failure).
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* Returns 0 on success, < 0 on parse error or a TDO compare mismatch.
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* stats may be NULL.
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*/
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typedef void (*svf_log_fn)(void *user, int is_error, const char *msg);
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typedef struct {
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long commands; /* commands executed */
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long scans; /* SIR + SDR */
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long compares; /* TDO compares performed */
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} svf_stats;
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int svf_play_file(jtag_core *jc, const char *path,
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svf_log_fn log, void *user, svf_stats *stats);
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#endif
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