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Doc: jtag_init must validate scan chain too 

Same requirement as like init_reset, and for the same reason:
we need to start with a known and working state.
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David Brownell 2009-10-19 14:45:43 -07:00
parent 6726b78707
commit 6ec1026bbb
1 changed files with 5 additions and 0 deletions
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doc/openocd.texi
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@ -1573,6 +1573,11 @@ which uses only a lightweight JTAG reset before examining the
scan chain. scan chain.
If that fails, it tries again, using a harder reset If that fails, it tries again, using a harder reset
from the overridable procedure @command{init_reset}. from the overridable procedure @command{init_reset}.
Implementations must have verified the JTAG scan chain before
they return.
This is done by calling @command{jtag arp_init}
(or @command{jtag arp_init-reset}).
@end deffn @end deffn
@anchor{TCP/IP Ports} @anchor{TCP/IP Ports}