22 lines
845 B
INI
22 lines
845 B
INI
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echo "Forcing reset_config to none to prevent OpenOCD from pulling SRST after the switch from LV is already performed"
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reset_config none
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jtag newtap $_CHIPNAME-lv tap -irlen 32 -ircapture 0x1 -irmask 0x1f -expected-id $_LVTAPID -expected-id $_CPUID
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jtag configure $_CHIPNAME-lv.tap -event setup "jtag tapenable $_CHIPNAME.cpu"
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jtag configure $_CHIPNAME-lv.tap -event tap-disable {}
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jtag newtap $_CHIPNAME cpu -irlen 5 -ircapture 0x1 -irmask 0x1f -expected-id $_CPUID -disable
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jtag configure $_CHIPNAME.cpu -event tap-enable "switch_lv_to_ejtag"
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set _TARGETNAME $_CHIPNAME.cpu
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target create $_TARGETNAME mips_m4k -endian little -chain-position $_TARGETNAME
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proc switch_lv_to_ejtag {} {
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global _CHIPNAME
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poll 0
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irscan $_CHIPNAME-lv.tap 0x143ff3a
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drscan $_CHIPNAME-lv.tap 32 1
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jtag tapdisable $_CHIPNAME-lv.tap
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poll 1
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}
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