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annotate calypso-jtag/early-experiments/with-target.cfg @ 176:fb2f6497ba53 default tip

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doc/Linux-DTR-RTS-flaw: point to new location of this article
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 11 Dec 2023 19:37:20 +0000
parents 240221552ecf
children
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d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
Mychaela Falconia <falcon@freecalypso.org>
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1 # The Calypso target is connected to an unbuffered FT2232D adapter
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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2 # acting as the JTAG interface following Mother Mychaela's method,
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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3 # ADBUS7 is wired to the reset pin on TI's 14-pin connector.
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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4 # This OpenOCD config sets up the TAPs and the ARM7TDMI target
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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5 # in order to test OpenOCD's ability to halt with and without the
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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6 # "Calypso magic" that has supposedly been sniffed from TI's CCS
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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7 # by people who came before me.
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8
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9 interface ftdi
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10 ftdi_vid_pid 0x0403 0x7151
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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11
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2092878ec699 calypso-jtag configs: leave FT2232x ADBUS[6:4] as inputs
Mychaela Falconia <falcon@freecalypso.org>
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12 ftdi_layout_init 0x0088 0x008b
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d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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13 ftdi_layout_signal nSRST -data 0x0080 -oe 0x0080
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14
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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15 transport select jtag
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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16
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17 adapter_khz 6000
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18 reset_config srst_only srst_push_pull
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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19
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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20 if { [info exists CHIPNAME] } {
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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21 set _CHIPNAME $CHIPNAME
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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22 } else {
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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23 set _CHIPNAME calypso
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24 }
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25
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26 if { [info exists CPUTAPID] } {
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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27 set _CPUTAPID $CPUTAPID
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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28 } else {
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29 set _CPUTAPID 0x3100e02f
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30 }
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31
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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32 jtag newtap $_CHIPNAME dsp -irlen 8
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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33 jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
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34
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35 set _TARGETNAME $_CHIPNAME.arm
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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36 target create $_TARGETNAME arm7tdmi -endian little -chain-position $_TARGETNAME
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37
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38 proc calypso_magic {} {
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39 irscan calypso.arm 0x0b -endstate DRPAUSE
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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40 drscan calypso.arm 2 2 -endstate RUN/IDLE
d68f862c8240 calypso-jtag/with-target.cfg: one more experiment
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41 }