I've tried:
sl_FsDel(0,0);
sl_FsDel("",0);
sl_FsDel("/",0);
sl_FsDel("*",0);
sl_FsDel("/*",0);
I always get return value -11. I imagine there should some additional step to provide flash size as Uniflash does. Uniflash seems to successfully format the flash. I'm working on CC3200-LAUNCHXL Rev3.2 (with XCC3200HZ).
It should be possible right? Documentation for sl_FsDel() states: "delete specific file from a storage or all files from a storage (format)".