undefined reference to `shiftOut'

goran-mahovlic commented 9 years ago

if I try to use simple code for nokia display I got this error I have seen this error on multiply examples

http://playground.arduino.cc/Code/PCD8544

goran-mahovlic commented 9 years ago

adding this to ino works but I do now know where to place it

void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val) { uint8_t i;

 for (i = 0; i < 8; i++)  {
       if (bitOrder == LSBFIRST)
             digitalWrite(dataPin, !!(val & (1 << i)));
       else      
             digitalWrite(dataPin, !!(val & (1 << (7 - i))));

       digitalWrite(clockPin, HIGH);
       digitalWrite(clockPin, LOW);            
 }

}

gornjas commented 9 years ago

There's already an implementation in hardware/arduino/avr/cores/arduino/wiring_shift.c. Perhaps this could work, most probably even without any modifications if copied to hardware/fpga/f32c/cores/f32c?

goran-mahovlic commented 9 years ago

now I got I probably need to fix .h file

/home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.c:27:9: error: conflicting types for 'shiftIn' uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) { ^ In file included from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/Arduino.h:80:0, from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_private.h:30, from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.c:25: /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.h:26:17: note: previous declaration of 'shiftIn' was here extern uint32_t shiftIn( uint32_t ulDataPin, uint32_t ulClockPin, uint32_t ulBitOrder ) ; ^ /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.c:42:6: error: conflicting types for 'shiftOut' void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val) ^ In file included from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/Arduino.h:80:0, from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_private.h:30, from /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.c:25: /home/mistery/.arduino15/packages/FPGArduino/hardware/f32c/1.0.0/cores/f32c/wiring_shift.h:32:13: note: previous declaration of 'shiftOut' was here extern void shiftOut( uint32_t ulDataPin, uint32_t ulClockPin, uint32_t ulBitOrder, uint32_t ulVal ) ; ^ Error compiling.

goran-mahovlic commented 9 years ago

copy wiring_shift.c to hardware/fpga/f32c/cores/f32c, and changed all uint8_t to uint32_t in wiring_shift.h

and got it working without errors, so you can fix it on repo

goran-mahovlic commented 9 years ago

and now https://github.com/wayoda/LedControl is working to :)

goran-mahovlic commented 9 years ago

all is working now with json

f32c / arduino

undefined reference to `shiftOut' #4