Hello.

I have found that it fails in hal/arm/arch/current/src/hal_misc.c at void 
breakpoint(void).

When i execute
void
breakpoint(void)
{
  diag_printf("breakpoint\n");
    HAL_BREAKPOINT(_breakinst);
  diag_printf("breakpoint\n");
}
The second trace doesn't appear and the target reboot.

When i try to compile
void
breakpoint(void)
{
  diag_printf("breakpoint %p\n", _breakinst);
    HAL_BREAKPOINT(_breakinst);
  diag_printf("breakpoint %p\n", _breakinst);
}
I have hal_misc.c:230: error: `_breakinst' undeclared (first use in this 
function)
(i use, now gcc 3.4.3 from gnuarm).

I go on my investigations...

Andrew Lunn wrote:
On Mon, Jan 14, 2008 at 02:53:02PM +0100, Paul Chavent wrote:
Andrew Lunn wrote:
Lets try something simple. Connect to RedBoot over the serial
port. Send it a $ character. Does it crash and reboot, or does it just
go silent?

$ is the magic character that tells RedBoot to send characters to the
stub.

If it does not reboot, reboot it and send

$m0,10#2a

which i think is a valid command to read 10 bytes from address 0. Any
response or a reboot?

         Andrew


Damned ! It reboots !

So look in packages/redboot/current/main.c. Put in some diag_printf()
before the HAL_THREAD_INIT_CONTEXT and HAL_THREAD_SWITCH_CONTEX calls.
Check the values of workspace_end, breakpoint, trampoline etc. Andrew



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