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ARM11: help/usage updates 

Usage syntax messages have the same EBNF as the User's Guide;
there should be no angle brackets in either place.

Uupdate some helptext to be more accurate.

Fix the User's Guide in a few places to be more consistent (mostly
to use brackets not parentheses) and to recognize that parameter may
be entirely optional (in which case the command just displays output,
and changes nothing).  Also reference NXP, not Philips, for LPC chips.

Don't use "&function"; functions are like arrays, their address
is their name.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell 2010-01-07 16:21:10 -08:00
parent 48d51e1719
commit 199abf49ea
2 changed files with 30 additions and 23 deletions
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24
doc/openocd.texi
View File

@ -6162,27 +6162,29 @@ Without arguments, the current settings are displayed.
@subsection ARM11 specific commands
@cindex ARM11
@deffn Command {arm11 memwrite burst} [value]
@deffn Command {arm11 memwrite burst} [@option{enable}|@option{disable}]
Displays the value of the memwrite burst-enable flag,
which is enabled by default. Burst writes are only used
for memory writes larger than 1 word. Single word writes
are likely to be from reset init scripts and those writes
are often to non-memory locations which could easily have
many wait states, which could easily break burst writes.
If @var{value} is defined, first assigns that.
which is enabled by default.
If a boolean parameter is provided, first assigns that flag.
Burst writes are only used for memory writes larger than 1 word.
They improve performance by assuming that the CPU has read each data
word over JTAG and completed its write before the next word arrives,
instead of polling for a status flag to verify that completion.
This is usually safe, because JTAG runs much slower than the CPU.
@end deffn
@deffn Command {arm11 memwrite error_fatal} [value]
@deffn Command {arm11 memwrite error_fatal} [@option{enable}|@option{disable}]
Displays the value of the memwrite error_fatal flag,
which is enabled by default.
If @var{value} is defined, first assigns that.
If a boolean parameter is provided, first assigns that flag.
When set, certain memory write errors cause earlier transfer termination.
@end deffn
@deffn Command {arm11 step_irq_enable} [value]
@deffn Command {arm11 step_irq_enable} [@option{enable}|@option{disable}]
Displays the value of the flag controlling whether
IRQs are enabled during single stepping;
they are disabled by default.
If @var{value} is defined, first assigns that.
If a boolean parameter is provided, first assigns that.
@end deffn
@deffn Command {arm11 vcr} [value]

29
src/target/arm11.c
View File

@ -1318,17 +1318,20 @@ COMMAND_HANDLER(arm11_handle_vcr)
static const struct command_registration arm11_mw_command_handlers[] = {
{
.name = "burst",
.handler = &arm11_handle_bool_memwrite_burst,
.handler = arm11_handle_bool_memwrite_burst,
.mode = COMMAND_ANY,
.help = "Enable/Disable potentially risky fast burst mode"
" (default: enabled)",
.help = "Display or modify flag controlling potentially "
"risky fast burst mode (default: enabled)",
.usage = "['enable'|'disable']",
},
{
.name = "error_fatal",
.handler = &arm11_handle_bool_memwrite_error_fatal,
.handler = arm11_handle_bool_memwrite_error_fatal,
.mode = COMMAND_ANY,
.help = "Terminate program if transfer error was found"
.help = "Display or modify flag controlling transfer "
"termination on transfer errors"
" (default: enabled)",
.usage = "['enable'|'disable']",
},
COMMAND_REGISTRATION_DONE
};
@ -1338,11 +1341,11 @@ static const struct command_registration arm11_any_command_handlers[] = {
* simulate + breakpoint implementation is broken.
* TEMPORARY! NOT DOCUMENTED! */
.name = "hardware_step",
.handler = &arm11_handle_bool_hardware_step,
.handler = arm11_handle_bool_hardware_step,
.mode = COMMAND_ANY,
.help = "DEBUG ONLY - Hardware single stepping"
" (default: disabled)",
.usage = "(enable|disable)",
.usage = "['enable'|'disable']",
},
{
.name = "memwrite",
@ -1352,16 +1355,18 @@ static const struct command_registration arm11_any_command_handlers[] = {
},
{
.name = "step_irq_enable",
.handler = &arm11_handle_bool_step_irq_enable,
.handler = arm11_handle_bool_step_irq_enable,
.mode = COMMAND_ANY,
.help = "Enable interrupts while stepping"
" (default: disabled)",
.help = "Display or modify flag controlling interrupt "
"enable while stepping (default: disabled)",
.usage = "['enable'|'disable']",
},
{
.name = "vcr",
.handler = &arm11_handle_vcr,
.handler = arm11_handle_vcr,
.mode = COMMAND_ANY,
.help = "Control (Interrupt) Vector Catch Register",
.help = "Display or modify Vector Catch Register",
.usage = "[value]",
},
COMMAND_REGISTRATION_DONE
};