>From: Gregory Nutt <[email protected]>
>Sent: 11 May 2021 18:33
>
>> All this starts from the CAN init code crashing (SAMA5D27) when it
>> makes any call to print debug messages. Printf itself is fine.
>These kinds of crashes are often due to stack overrun. It might be worth
>increasing the stack size of the task that calls CAN init.
I have only just had a moment to take another look. This is the basic nsh
config, with just the CAN example enabled. Heap size is the standard 2048,
but if I increase to 4096 it still crashes in the same place:
int sam_can_setup(void)
{
#if defined(CONFIG_CAN)
int ret;
printf("PRINTF: Setting up CAN\n");
#if defined CONFIG_DEBUG_CAN_INFO
caninfo("CANINFO: Setting up CAN\n");
while(1);
...etc
I get the printf text on the console but not the caninfo message. The
program is stopped in the while(1) loop. I still can't debug this, but
that's a different problem. If I use the Eclipse debugger to pause the
program it clearly states it has a thread for sam_can_setup() at sam_can.c
and is trying to find the source but Eclipse reports:
Can't find a source file at
"/home/timh/nuttx/nuttx/boards/arm/sama5/jti-toucan2/src/sam_can.c"
Locate the file or edit the source lookup path to include its location.
That is not the full path from a Windows POV which is quite possible the
issue - Windows knows the path as:
C:\Users\TimHardisty\AppData\Local\Packages\CanonicalGroupLimited.UbuntuonWi
ndows_79rhkp1fndgsc\LocalState\rootfs\home\timh\nuttx\nuttx\boards\arm\sama5
\jti-toucan2\src
I have made sure that is the path configured in Eclipse, but it seems not to
respect that.
If you or anyone has other suggestions (and I will reply to the suggestions
others made in a moment) then I will give anything ago but I am currently
investigating either a 3rd machine to just run Ubuntu or a VM on my Win10
machine or dual booting my Mac. But, quite probably, buying a machine is a
better bang for the buck, for me as a professional engineer, rather than
spending time playing around with VMs or other "tricks" that might work but
suck up time! If a £500 mini PC sorts it, then on reflection I'll be a happy
chappy!
