No source available for "0x3fdeba" error?

Richard Cooke

Hi Folks,

I sure hope this is an easy fix but tonight while working on a edited version of Lab10a I get the above error. Earlier today the motor would spin fine but now if I run the debugger and enable both gMotorVars.Flag_enableSys and gMotorVars.Flag_Run_Identify the motor just twitches once and then nothing. If I hit the Suspend icon the Debug window shows:

Is there a setting I might have inadvertently changed to cause the code to use too much flash or ram? Here's my memory allocation window:

I've edited my F28027.cmd file for the bug Gary H found:

FLASHA_D : origin = 0x3F0000, length = 0x007F80

The error occurs with and without this change.

Anybody have a suggestion for me to try?

Thanks,

Richard C.

over 8 years ago

0 ChrisClearman over 8 years ago

TI__Guru** 118000 points

Richard,
First, use the .cmd file posted in this thread
e2e.ti.com/.../1524776

I'm not sure if the "no symbols defined" would happen because of memory allocation...I usually only see it if I haven't loaded a .out to the device, or told CCS which .out is already loaded into flash.

0 Richard Cooke over 8 years ago in reply to ChrisClearman

Expert 1530 points

Chris,

I updated the CMD file but that didn't seem to make any difference. Looking over my notes it seems that my problem started after I changed my GPIO setups. I have the /FAULT signal attached to pin#47 which is GPIO12 so I changed that setting in my HAL.C HAL_setupGpios( ) function. I changed it from:
GPIO_setMode(obj->gpioHandle,GPIO_Number_12,GPIO_12_Mode_GeneralPurpose);
to:
GPIO_setMode(obj->gpioHandle,GPIO_Number_12,GPIO_12_Mode_TZ1_NOT);

After I changed it back the error goes away. Does this make sense?

Thanks,

Richard C.

0 Richard Cooke over 8 years ago in reply to Richard Cooke

Expert 1530 points

Chris,

I spoke too soon. It's still failing and giving me the error.

Richard C

0 ChrisClearman over 8 years ago in reply to Richard Cooke

TI__Guru** 118000 points

is it still saying "no symbols defined"?
first step I'd try a fresh launch of CCS, new workspace, and then debug the project again

0 Christopher Chiarella over 8 years ago in reply to Richard Cooke

TI__Mastermind 30255 points

Richard,

In addition to what Chris mentions, are you only seeing this error when you click "suspend"? It's possible the address is within a reserved memory space, for whatever reason, and that's why it can't find any source. I suggest using breakpoints to suspend your code and debug.

Best Regards,
Chris

0 Richard Cooke over 8 years ago in reply to Christopher Chiarella

Expert 1530 points

My Fault. Turned out it was a hardware issue. I had soldered on a test lead to try and measure the VA_FB output but in doing so I must've cracked the resistor as it was reading open when I ran out of software things to test and turned to hunting it in hardware. So, ultimately the VA_FB wasn't reaching the processor so all bets were off as soon as I tried to run the motor.

C2000™︎ microcontrollers

C2000 microcontrollers forum

No source available for "0x3fdeba" error?