auracaster/openocd
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

target/arm_adi_v5: add command "dpreg"

Browse Source 
For very low level debug or development around DAP, it is useful
to have direct access to DP registers.

Add command "dpreg" by mimic the syntax of the existing "apreg"
command:
	$dap_name dpreg reg [value]

Change-Id: Ic4ab451eb5e74453133adee61050b4c6f656ffa3
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4612
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Antonio Borneo
2018-05-23 00:55:03 +02:00
committed by Tomas Vanek
parent d92773b205
commit 6738e447c5
2 changed files with 51 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
doc/openocd.texi
View File

@@ -4087,6 +4087,18 @@ or set a new value @var{value}.
Select AP @var{num}, defaulting to 0.
@end deffn
@deffn Command {$dap_name dpreg} reg [value]
Displays the content of DP register at address @var{reg}, or set it to a new
value @var{value}.
In case of SWD, @var{reg} is a value in packed format
@math{dpbanksel << 4 | addr} and assumes values 0, 4, 8 ... 0xfc.
In case of JTAG it only assumes values 0, 4, 8 and 0xc.
@emph{Note:} Consider using @command{poll off} to avoid any disturbing
background activity by OpenOCD while you are operating at such low-level.
@end deffn
@deffn Command {$dap_name baseaddr} [num]
Displays debug base address from MEM-AP @var{num},
defaulting to the currently selected AP.