morransmith
commented
4 years ago Hi
../Src/main.c(171): warning: #111-D: statement is unreachable sx127x_free(&sx1276_phy);
is normal in this case because you never exit the main loop and this function will never be called.
if your program never exits then you can just delete this line.
warning: #68-D: integer conversion resulted in a change of sign return -1;
appears because functions must return an unsigned 8-bit number, and the return number (-1) in them has a sign, which in fact will be 0xff
you can ignore these warnings or replace all return -1 with return 0xff
Hi , thanks for sharing your work. I tried your codes with stm32F4 discovery with Keil IDE . I'm having error which stops me while debugging . ../Src/main.c(171): warning: #111-D: statement is unreachable sx127x_free(&sx1276_phy); in addition to many warnings with same notice ..\Src\sx127x_io.c(33): warning: #68-D: integer conversion resulted in a change of sign return -1; ..\Src\sx127x.c(422): warning: #68-D: integer conversion resulted in a change of sign return -1; ..\Src\sx127x_private.c(378):warning:#68-D: integer conversion resulted in a change of sign return -1; can you help me please .