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Support for custom TMSC buffer 

Signed-off-by: mrv96 <mrv96@users.noreply.github.com>
This commit is contained in:
mrv96 2022-09-19 14:27:10 +02:00
parent b3d64741c2
commit 671d99b89b
1 changed files with 16 additions and 0 deletions
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16
src/jtag/drivers/ftdi.c
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@ -808,6 +808,8 @@ static void oscan1_mpsse_clock_data(struct mpsse_ctx *ctx, const uint8_t *out, u
static const uint8_t zero;
static const uint8_t one = 1;
struct signal *tmsc_en = find_signal_by_name("TMSC_EN");
LOG_DEBUG_IO("oscan1_mpsse_clock_data: %sout %d bits", in ? "in" : "", length);
for (unsigned i = 0; i < length; i++) {
@ -833,8 +835,14 @@ static void oscan1_mpsse_clock_data(struct mpsse_ctx *ctx, const uint8_t *out, u
mpsse_clock_tms_cs_out(mpsse_ctx, &one, 0, 1, false, mode);
}
if (tmsc_en)
ftdi_set_signal(tmsc_en, '0'); /* put TMSC in high impedance */
/* drive another TCK without driving TMSC (TDO cycle) */
mpsse_clock_tms_cs(mpsse_ctx, &zero, 0, in, in_offset+i, 1, false, mode);
if (tmsc_en)
ftdi_set_signal(tmsc_en, '1'); /* drive again TMSC */
}
}
@ -845,6 +853,8 @@ static void oscan1_mpsse_clock_tms_cs(struct mpsse_ctx *ctx, const uint8_t *out,
static const uint8_t zero;
static const uint8_t one = 1;
struct signal *tmsc_en = find_signal_by_name("TMSC_EN");
LOG_DEBUG_IO("oscan1_mpsse_clock_tms_cs: %sout %d bits, tdi=%d", in ? "in" : "", length, tdi);
for (unsigned i = 0; i < length; i++) {
@ -871,8 +881,14 @@ static void oscan1_mpsse_clock_tms_cs(struct mpsse_ctx *ctx, const uint8_t *out,
mpsse_clock_tms_cs_out(mpsse_ctx, &one, 0, 1, (tmsbit != 0), mode);
}
if (tmsc_en)
ftdi_set_signal(tmsc_en, '0'); /* put TMSC in high impedance */
/* drive another TCK without driving TMSC (TDO cycle) */
mpsse_clock_tms_cs(mpsse_ctx, &zero, 0, in, in_offset+i, 1, false, mode);
if (tmsc_en)
ftdi_set_signal(tmsc_en, '1'); /* drive again TMSC */
}
}