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@@ -0,0 +1,21 @@ |
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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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} |