Printf via SWV doesn't print anything
Hello All,
Using ITM is pretty simple.
My usage:
in syscalls.c, add #include “stm32f4xx.h” (depends on your device) & (you should include CMSIS folder)
and modify the _write function :
int _write(int file, char *ptr, int len)
{
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
ITM_SendChar( *ptr++ );
}
return len;
}
After that, you can use printf to output message via printf.
To visualize the ITM output, you can use ST-Link Utility (menu : ST-LINK > Printf via SWO Viewer)
Best Regards,
Tarek
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