diff options
| author | Tomas Vanek <vanekt@fbl.cz> | 2015-03-14 12:03:47 +0100 |
|---|---|---|
| committer | Paul Fertser <fercerpav@gmail.com> | 2015-04-14 15:47:43 +0100 |
| commit | f3b1405fddf0b32af27ad3894841f7d1702d8e5a (patch) | |
| tree | fb42b39ef1149ff613bd2b7a94b270be0ea16981 /doc | |
| parent | bdfd5bbe0473d9db7949dd303bcb28282a17a47d (diff) | |
AT91SAM4L: handle reset run/halt in SMAP
This is a remake of http://openocd.zylin.com/1966
originally written by Angus Gratton <gus@projectgus.com>
ATSAM4L has a "System Manager Access Port" (SMAP) that holds the CPU
in reset if TCK is low when srst (RESET_N) is deasserted.
Without this change any use of sysresetreq or srst locks the chip
in reset state until power is cycled.
A new function smap_reset_deassert is called as reset-deassert-post event handler.
It optionally prepares reset vector catch and SMAP reset is released then.
Change-Id: Iad736357b0f551725befa2b9e00f3bc54504f3d8
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2604
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/openocd.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index e418e050..5a803d2c 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -5152,6 +5152,20 @@ Atmel include internal flash and use ARM's Cortex-M4 core. This driver uses the same cmd names/syntax as @xref{at91sam3}. @end deffn +@deffn {Flash Driver} at91sam4l +@cindex at91sam4l +All members of the AT91SAM4L microcontroller family from +Atmel include internal flash and use ARM's Cortex-M4 core. +This driver uses the same cmd names/syntax as @xref{at91sam3}. + +The AT91SAM4L driver adds some additional commands: +@deffn Command {at91sam4l smap_reset_deassert} +This command releases internal reset held by SMAP +and prepares reset vector catch in case of reset halt. +Command is used internally in event event reset-deassert-post. +@end deffn +@end deffn + @deffn {Flash Driver} at91sam7 All members of the AT91SAM7 microcontroller family from Atmel include internal flash and use ARM7TDMI cores. The driver automatically |