A couple of notes: After line 191 (term = i;), insert a break statement. This may actually fix the extra null problem.
Change the declaration of the parameter in 147 to (char const * c). Do the same on line 98. This will silence a lot of the warnings. On Tue, Oct 15, 2019 at 5:45 AM Brian K. White <[email protected]> wrote: > I'll do some more methodical testing to try to duplicate. > -- > bkw > > On 10/15/19 4:55 AM, Gary Hammond wrote: > > > > With the code for sd2tpdd from GitHub, the compiler was issuing the > > warnings below. I have gone through and corrected them and the > > compiler is now happy and the randomness in the first 2 characters is > > less random. They are still garbage characters but now they are nearly > > consistently the same garbage for a given file. > > > > For example, for 3 runs of the load/save of the same file, I got the > > following first 2 bytes (hex) > > > > 5C 89 > > > > 97 8A > > > > 5C 89 > > > > On a different file I got 1B 8A > > > > The compiler warnings were: > > > > 184:33: warning: invalid conversion from 'char*' to 'byte* {aka > > unsigned char*}' [-fpermissive] > > > > 92:6: note: initializing argument 1 of 'void clearBuffer(byte*, int)' > > > > 253:30: warning: ISO C++ forbids converting a string constant to > > 'char*' [-Wwrite-strings] > > > > 379:28: warning: ISO C++ forbids converting a string constant to > > 'char*' [-Wwrite-strings] > > > > 473:24: warning: ISO C++ forbids converting a string constant to > > 'char*' [-Wwrite-strings] > > > > 498:24: warning: ISO C++ forbids converting a string constant to > > 'char*' [-Wwrite-strings] > > > > 522:34: warning: ISO C++ forbids converting a string constant to > > 'char*' [-Wwrite-strings] > > > > The NULL character is still being appended to the end of the file…no > > luck so far chasing that one down. > > > > To help with those who can confirm that they have their board working > > fine, I am using Arduino 1.8.10 for build and upload. > > > > The GitHub page for the source I am using is > > https://github.com/TangentDelta/SD2TPDD in case I am using the wrong > one. > > > > I have now tried my 2 slightly suspect AliExpress Arduino Mega clones > > and various combinations of el cheapo SD card readers and shop bought > > ones. The genuine Arduino Mega I ordered from arduino.cc arrived today > > so have swapped out the clones for the genuine article and still no luck. > > > >
