FreeCalypso > hg > freecalypso-hwlab

annotate calypso-jtag/early-experiments/with-reset.cfg @ 145:14dee03e9675

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fc-uicc-tool: low-level write commands ported over
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 06 Feb 2021 02:17:51 +0000
parents 240221552ecf
children
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61
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 # The Calypso target is connected to an unbuffered FT2232D adapter
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 # acting as the JTAG interface following Mother Mychaela's method,
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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3 # ADBUS7 is wired to the reset pin on TI's 14-pin connector.
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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4 #
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5 # This config is an attempt (unsuccessful) to get OpenOCD's reset
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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6 # infrastructure (including reset halt) to work with the very different
3940292ad76f calypso-jtag: finally got some breakthrough
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7 # way of doing things on the Calypso.
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8
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9 interface ftdi
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10 ftdi_vid_pid 0x0403 0x7151
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11
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12 ftdi_layout_init 0x0088 0x008b
3940292ad76f calypso-jtag: finally got some breakthrough
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13 ftdi_layout_signal XDS_RESET -data 0x0080 -oe 0x0080
3940292ad76f calypso-jtag: finally got some breakthrough
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14
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15 transport select jtag
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16 adapter_khz 6000
3940292ad76f calypso-jtag: finally got some breakthrough
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17
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18 # Reset like the one produced by TI's original XDS510/560 adapters
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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19 proc init_reset { mode } {
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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20 ftdi_set_signal XDS_RESET 0
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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21 sleep 50
3940292ad76f calypso-jtag: finally got some breakthrough
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22 ftdi_set_signal XDS_RESET 1
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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23 sleep 10
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24 jtag arp_init
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25 }
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26
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27 if { [info exists CHIPNAME] } {
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Mychaela Falconia <falcon@freecalypso.org>
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28 set _CHIPNAME $CHIPNAME
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29 } else {
3940292ad76f calypso-jtag: finally got some breakthrough
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30 set _CHIPNAME calypso
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31 }
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32
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33 if { [info exists CPUTAPID] } {
3940292ad76f calypso-jtag: finally got some breakthrough
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34 set _CPUTAPID $CPUTAPID
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35 } else {
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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36 set _CPUTAPID 0x3100e02f
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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37 }
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38
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39 jtag newtap $_CHIPNAME dsp -irlen 8
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Mychaela Falconia <falcon@freecalypso.org>
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40 jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
3940292ad76f calypso-jtag: finally got some breakthrough
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41
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42 set _TARGETNAME $_CHIPNAME.arm
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43 target create $_TARGETNAME arm7tdmi -endian little -chain-position $_TARGETNAME
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44
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45 arm7_9 dbgrq enable
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46
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Mychaela Falconia <falcon@freecalypso.org>
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47 proc calypso_magic {} {
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Mychaela Falconia <falcon@freecalypso.org>
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48 irscan calypso.arm 0x0b -endstate DRPAUSE
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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49 drscan calypso.arm 2 2 -endstate RUN/IDLE
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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50 }
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51
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Mychaela Falconia <falcon@freecalypso.org>
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52 # watchdog disable with minimal finger strokes to make it in time
3940292ad76f calypso-jtag: finally got some breakthrough
Mychaela Falconia <falcon@freecalypso.org>
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53 proc wd {} {
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54 calypso.arm mwh 0xFFFFF804 0xF5
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55 calypso.arm mwh 0xFFFFF804 0xA0
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56 }
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57
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58 $_TARGETNAME configure -event examine-start calypso_magic
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59
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60 # deliberately empty procedure here, as init_reset already did the job
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61 $_TARGETNAME configure -event reset-assert { }